The earth's crust is:
1.broken into several plates
2.floating on top of the mantle
3.made of granite and basalt
4.all of the above
Answers
Answer:
Well ummmmm 1
Step-by-step explanation:
Answer:
All of the above because we know that the earths crust is above the mantle AND that there are several plates, and I read in an article that the earth is made of basalt and granite
I also got this right on a test in odsseyware:-)
Step-by-step explanation:
Related Questions
Solve: 1/4 a = 4/15
Answers
Answer:
a = 1 1/15
Step-by-step explanation:
1/4 a = 4/15
Multiply each side by 4 to isolate a
4 * 1/4a = 4 * 4/15
a = 16/15
a = 1 1/15
A survey of 137 investment managers in a poll revealed the following. . 44% of managers classified themselves as bullish or very bullish on the stock market. . the average expected return over the next 12 months for equities was 11.3%. . 23% selected health care as the sector most likely to lead the market in the next 12 months. . when asked to estimate how long it would take for technology and telecom stocks to resume sustainable growth, the managers' average response was 2.3 years. (a) cite two descriptive statistics. (select all that apply.) A. of those investment managers surveyed, 44% were bullish or very bullish on the stock market. B. of those investment managers surveyed, 23% selected health care as the sector most likely to lead the market in the next 12 months. C. of those investment managers surveyed, 44% were bullish or very bullish on health care stocks over the next 2.3 years. D. of those investment managers surveyed, 44% selected technology and telecom stocks to be the sector most likely to lead the market in the next 12 months. E. of those investment managers surveyed, 11.3% expect it would take 12 months for equities to resume sustainable growth. (b) make an inference about the population of all investment managers concerning the average return expected on equities over the next 12 months. (c) make an inference about the length of time it will take for technology and telecom stocks to resume sustainable growth.
Answers
(a)The two descriptive statistics that can be cited are as follows: A. Of those investment managers surveyed, 44% were bullish or very bullish on the stock market.
B. Of those investment managers surveyed, 23% selected health care as the sector most likely to lead the market in the next 12 months.
(b)Inference about the population of all investment managers concerning the average return expected on equities over the next 12 months:By looking at the descriptive statistic given, we can say that the average expected return over the next 12 months for equities was 11.3%. Therefore, the inference about the population of all investment managers concerning the average return expected on equities over the next 12 months would be that most investment managers expect a return of about 11.3% on equities over the next 12 months.
(c)Inference about the length of time it will take for technology and telecom stocks to resume sustainable growth:By looking at the descriptive statistic given, we can say that the managers' average response when asked to estimate how long it would take for technology and telecom stocks to resume sustainable growth was 2.3 years. Therefore, the inference about the length of time it will take for technology and telecom stocks to resume sustainable growth would be that investment managers believe it will take about 2.3 years for technology and telecom stocks to resume sustainable growth.
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how many terms are in the following expression?
Answers
The number of terms in the expression, 6 + 2 x - 4 y + 5 z is 4 terms.
How to find the number of terms ?In the expression 6 + 2x - 4y + 5z, the number of terms is four, not the number of signs. The terms in this expression are:
62 x- 4 y 5 zEach term is separated by an operator (either addition or subtraction), which is represented by a sign. Therefore, the expression contains three addition signs and one subtraction sign.
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The full question is:
How many terms are in the following expression 6 + 2 x - 4 y + 5 z
Find the value of x and z
Answers
we have, the opposite angles at the vertex have the same measure, therefore:
\(\begin{gathered} 11x+54=12x+52 \\ 11x+54-54=12x+52-54 \\ 11x=12x-2 \\ 11x-12x=12x-2-12x \\ -x=-2 \\ x=2 \end{gathered}\)then,
\(\begin{gathered} angle1\colon11(2)+54=22+54=76 \\ \text{angle}2\colon\text{ 12(}2)+52=24+52=76 \end{gathered}\)and we have the sum of all 4 angles is equal to 360 and as I said before, the opposite angles by the vertex have equal measure, so:
\(\begin{gathered} angle\text{ 3 + 76 + 76 + z = 360} \\ \text{angle 3 +152 + z = 360} \\ \text{then, angle 3 = z } \\ z+152+z=360 \\ 2z+152=360 \\ 2z+152-152=360-152 \\ 2z=208 \\ \frac{2z}{2}=\frac{208}{2} \\ z=104 \end{gathered}\)answer: x = 2 and z = 104
Elizabeth is signing up for a gym membership with a one-time fee to join and then a monthly fee to remain a member. The total cost of the gym membership over tt months is given by the equation C=25t+100 What is the y-intercept of the equation and what is its interpretation in the context of the problem?
Answers
Answer:
y = 100
Step-by-step explanation:
that is where the equation starts, Elizabeth pays $100 before even working out for a month, the initial fee
Given f(X) = 4x^4+5x - 15x² - 45, find f(-3).
Answers
Answer:
i think the answer is 174
Identify the vertex, intercepts and whether of the graph of the function below opens up or down. Answer as a point (x,y). If an intercept does not exist, answer, “none”. If more than one intercepts exist you can type either intercept.
Answers
We were given the function:
\(f\mleft(x\mright)=\frac{1}{2}|4x+12|-2\)We will solve for the vertex as shown below:
\(\begin{gathered} f\mleft(x\mright)=\frac{1}{2}|4x+12|-2 \\ when\colon x=-10 \\ f\mleft(-10\mright)=\frac{1}{2}|4\cdot-10+12|-2 \\ f(-10)=\frac{1}{2}|-40+12|-2 \\ f(-10)=\frac{1}{2}|-28|-2=\frac{1}{2}|28|-2=14-2 \\ f(-10)=12 \\ \\ when\colon x=-3 \\ f(-3)=\frac{1}{2}|4\cdot-3+12|-2 \\ f(-3)=\frac{1}{2}|-12+12|-2 \\ f(-3)=\frac{1}{2}|0|-2=0-2 \\ f(-3)=-2 \\ \\ when\colon x=0 \\ f(0)=\frac{1}{2}|4\cdot0+12|-2 \\ f(0)=\frac{1}{2}|0+12|-2 \\ f(0)=\frac{1}{2}|12|-2=6-2 \\ f(0)=4 \\ \\ when\colon x=2 \\ f(2)=\frac{1}{2}|4\cdot2+12|-2 \\ f(2)=\frac{1}{2}|8+12|-2 \\ f(2)=\frac{1}{2}|20|-2=10-2 \\ f(2)=8 \end{gathered}\)Plotting this on a graph, we have:
From the graph plotted above, we can deduce that:
Vertex = (-3, -2)
x-intercept = (-2, 0)
y-intercept = (0, 4)
Graph opens up
Question
POSSIBLE POINTS: 1.25
Rewrite the following equation in Slope-Intercept Form (y=mx+b), then use your equation to complete the table and find the slope, the y-intercept, and the x-intercept.
6x−2y=12
Equation:
Table:
x y
-2
-1
0
1
2
y-intercept: (
,
)
x-intercept: (
,
)
Skip to navigation
Answers
The slope–intercept form of the equation, 6•x - 2•y = 12, is y = 3•x - 6, the completed table is therefore;
x; -2, -1, 0, 1, 2
y; -12, -9, -6, -3, 0
The slope of the equation is 3
The y–intercept of the graph of the equation is (0, -6)
The x–intercept is (2, 0)
What is the slope–intercept form of a straight line equation?The slope–intercept form of a straight line equation is the form; y = m•x + c, which shows (indicates) the slope, m and the y–intercept, c
The given equation is; 6•x - 2•y = 12
Required;
To rewrite the equation in the slope–intercept form of a straight line equation, y = m•x + c
Solution;
6•x - 2•y = 12
Rearranging the above equation gives;
6•x - 12 = 2•y
From the symmetric property of equality, we have;
2•y = 6•x - 12
Dividing both sides of the equation by 2 gives;
y = (6•x - 12) ÷ 2 = 3•x - 6
Therefore;
y = 3•x - 6
The above equation is in the slope–intercept form, y = m•x + c
Where;
The slope, m = 3The y–intercept, c = -6Which gives the y–intercept as the point (0, -6)
The table of values can therefore be completed as follows;
x; -2, -1, 0, 1, 2
When x = -2, y = 3×(-2) - 6 = -12
When x = -1, y = 3×(-1) - 6 = -9
At the point, x = 0, y = 3×(0) - 6 = -6
The point where x = 1, gives; y = 3×(1) - 6 = -3
At the point where x = 2, y = 3×(2) - 6 = 0
Which gives the completed table as follows;
x; -2, -1, 0, 1, 2
y; -12, -9, -6, -3, 0
The x–intercept is the point where the y–value is 0, which from the completed table gives the x–intercept as the point (2, 0)
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Given x2 +y2 = 15, use the algebraic tests to determine symmetry with respect to both axes and the
origin.
Answers
The equation x² +y² = 15 is symmetry concerning both axis and the origin.
since the given equation is : x² +y² = 15 ,Now, for the symmetry in the x-axis, we replace the y with - y, and we get
=>x² +(-y)² = 15
=>x² +y² = 15 ,Here we can see we get the same equation, so its symmetry in the axis .for the symmetry in the y-axis, we replace x with - x , and we get
=>(-x)² +y² = 15
=>x² +y² = 15, here we get the same equation even after replacing the value of y so it is symmetry in the x-axis .Now for the symmetry on the origin, we replace the values of (x,y) with (-x,-y), and we get
=>(-x)² +(-y)² = 15
=>x² +y² = 15, here we are getting the same equation after the substituting so it is symmetry in the origin.
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NEED HELP QUICK - State the reference angle and what quadrant the terminal side of the angle is in.
Answers
Answer:
the answer is 225
Step-by-step explanation:
y+135=360
y=360-135
y=225
what is a quadrilateral symmertrical across both diagonals
Answers
A rhombus has reflectional symmetry over either of its diagonals.
Define quadrilateral?In geometry, a quadrilateral is a four-sided polygon with four edges and four corners. The word is derived from the Latin words quadri (a variant of four) and latus (a side).Quadrilaterals are shapes with four sides and four corners, or vertices, and two of the sides are often parallel, which means they are always the same distance apart no matter how long they stretch. Squares and rectangles are the most common quadrilaterals, but there are also trapezoids, parallelograms, and kites.A quadrilateral is a closed shape and type of polygon with four sides, four vertices, and four angles. It is formed by connecting four non-collinear points.The sum of the interior angles of quadrilaterals is always 360 degrees.To learn more about quadrilateral refer to:
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Suppose you had d dollars in your bank account. You spent $10, but have at least $31 left. Which of the following inequalities represents this situation?
Answers
Answer:
The initial amount of money in the bank account is d dollars.
After spending $10, the amount of money left in the account is:
d - 10 dollars
According to the problem statement, the amount of money left in the account must be at least $31. Therefore, we have the inequality:
d - 10 ≥ 31
Simplifying this inequality by adding 10 to both sides, we get:
d ≥ 41
So the inequality that represents this situation is:
d ≥ 41.
Estimate the answer by rounding each fraction to the nearest whole number and then adding
Answers
(-3,-2)
(-3,2)
(-2,-3)
(-2,3)
Draw a line from each ordered pair to the description of its graph.
A point is placed 2 units left and 3 units down from the origin.
A point is placed 3 units left and 2 units up from the origin.
Answers
A point is placed 2 units left and 3 units down from the origin is (-2, -3) and a point is placed 3 units left and 2 units up from the origin is (-3, 2)
How to determine the ordered pairStatement 1:
Given that
A point is placed 2 units left and 3 units down from the origin.
This is represented as
(0 - 2, 0 - 3)
Evaluate
(-2, -3)
Statement 2:
A point is placed 3 units left and 2 units up from the origin.
This is represented as
(0 - 3, 0 + 2)
Evaluate
(-3, 2)
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Which expression is represented by the diagram?
HE
Answers
Answer:
The expression -10 - (-4) represents the given diagram.
Step-by-step explanation:
Here, the total number of blue boxes marked with (-) = 10
So, in Total number of (-) are 10 x (-1) = -10
Now, the number of boxes crossed out = 4
So, the total value crossed out = 4 x ( Value on each box) = 4 ( -1) = -4
⇒ The value Left after crossing = Total value - The crossed out value
= -10 - (-4)
Hence, the expression -10 - (-4) represents the given diagram.
given are five observations collected in a regression study on two variables. 2 6 9 13 20 7 18 9 26 23 a. which of the following scatter diagrams accurately represents the data? a. b. c. d. d b. develop the estimated regression equation for these data (to decimal). c. use the estimated regression equation to predict the value of when (to decimal).
Answers
Thus, we get regression equation as 7.5 =ý - 0.9x
What is regression equation ?Regression analysis is a group of statistical procedures used in statistical modeling to calculate the associations between a dependent variable and one or more independent variables.
Here,
The points are given as:
Xi: 2; 6; 9; 13; 20
Yi: 7; 18; 9; 26; 23
From the table of values, we have:
ΣEx=2+6+9+13+ 20 = 50
ΣEy = 7+18+9+26+23=83
Also, we have:
ΣExy = 2 x 7+ 6 x 18+9x9+13 × 26 +20 × 23: 1001
ΣEx² = 22 +6² +92 +13² +20² = 690
ΣEy² =72 +18² +9² +26² +23² =1659
The slope (b) is calculated as:
b=\(\frac{x - \frac{xy}{D} }{x^{2} -\frac{x^{2} }{n} }\)
So, we have:
b=\(\frac{1001 - \frac{50}{83} }{690^{2} -\frac{50^{2} }{5} }\)
b = 0.9
The y-intercept (a) is calculated as:
a =ý - bx
Where
y' =Σy/n =83/5=16.6
x'=Σx/n=50/5 =10
So we get ,
a=16.5 * 9*10
a=7.5
Thus, we get regression equation as 7.5 =ý - 0.9x
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For the position function s(t) = 3t2 - 2t + 1, where "t" is measured in minutes and "s(t)" is measured in feet, use the Limit Definition of the Derivative to find each of the following (and be sure to include appropriate units in your final answers):a) Velocity, which is s'(t). b) Acceleration, which is dt2
Answers
The velocity function is s'(t) = 6t - 2, and the units are feet per minute. The acceleration function is s''(t) = 6, and the units are feet per minute squared.
a) To find the velocity, which is the derivative of the position function with respect to time, we need to use the limit definition of the derivative:
s'(t) = lim(h→0) [s(t+h) - s(t)] / h
= lim(h→0) [(3(t+h)2 - 2(t+h) + 1) - (3t2 - 2t + 1)] / h
= lim(h→0) [3t2 + 6th + 3h2 - 2t - 2h + 1 - 3t2 + 2t - 1] / h
= lim(h→0) [6th + 3h2 - 2h] / h
= lim(h→0) [6t + 3h - 2]
= 6t - 2
b) To find the acceleration, which is the derivative of the velocity function with respect to time, we need to take the derivative of the velocity function:
s''(t) = d/dt [6t - 2]
= 6
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At a carnival, Jared and his brother collected 53 pieces of candy all together. Each of them ate 5 pieces of candy that evening. The next day, Jared had 19 pieces left. How many pieces did Jared's brother have left?
Answers
Answer:
24
Step-by-step explanation:
How many times larger than 2 x 102 is 2 x 108?
Answers
Answer:
1 x 106
Step-by-step explanation:
200,000,000 divided by 200 is equal to 1,000,000
a poll of $100$ eighth-grade students was conducted to determine the number of students who had a dog, a cat or a fish. the data showed that $50$ students had a dog, $40$ students had a cat, and $20$ students had a fish. further, $19$ students had only a dog and cat, $2$ students had only a cat and a fish, $3$ students had only a dog and a fish, and $12$ students had only a fish. how many students had none of these pets?
Answers
14 students had none of the pets mentioned in the problem.
Given Question is related to Sets and Function
By using the principle of inclusion-exclusion,
D = set of students who had a dog
C = set of students who had a cat
F = set of students who had a fish
Let's determine the sizes of the sets and their intersections:
|D| = 50
|C| = 40
|F| = 20
|D ∩ C| = 19
|C ∩ F| = 2
|D ∩ F| = 3
|D ∩ C ∩ F| = 0
|D ∪ C ∪ F| = ?
The size of the union of the sets as follows:
|D ∪ C ∪F| = |D| + |C| + |F| - |D ∩ C| - |C ∩ F| - |D ∩ F| + |D ∩ C ∩ F|
|D ∪ C ∪ F| = 50 + 40 + 20 - 19 - 2 - 3 + 0 = 86
Therefore, there were 86 students who had at least one of these pets.
To find the number of students who had none of these pets, we can subtract this number from the total number of students:
100 - 86 = 14
Therefore, 14 students had none of the pets mentioned in the problem.
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The diameter of a circular pizza is 24 in. How much pizza is eaten (in square inches) if half of it is consumed? (Pie and л... hmmmm...interesting...)
Answers
Using the formula of area of a circle, about 226.08in² has been eaten
How much pizza is eaten?The diameter of the pizza is given as 24 inches. To calculate the area of the entire pizza, we need to use the formula for the area of a circle:
Area = π * r²
where π is approximately 3.14 and r is the radius of the circle.
Given that the diameter is 24 inches, the radius (r) would be half of the diameter, which is 12 inches.
Let's calculate the area of the entire pizza first:
Area = 3.14 * 12²
Area = 3.14 * 144
Area ≈ 452.16 square inches
Now, if half of the pizza is consumed, we need to calculate the area of half of the pizza. To do that, we divide the area of the entire pizza by 2:
Area of half of the pizza = 452.16 / 2
Area of half of the pizza ≈ 226.08 square inches
Therefore, if half of the pizza is consumed, approximately 226.08 square inches of pizza would be eaten.
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What is the area of the figure Enter in the box
M2
Can you help me? If you can I would be very appreciated if you tell me how you got the answer!? If you can’t it’s totally fine. Also making Brainly questions and 50 points!
Answers
Answer:
Total Area = 532 m²
Step-by-step explanation:
Triangle = ½bh.
Rectangle = lw.
Total Area = sum of individual areas =
(8 m × 16 m) / 2 + (16 m × 18 m) / 2
+ (18 m × 18 m) =
(64 m²) + (144 m²) + (324 m²) =
532 m²
what are the numbers of the symbol π
Answers
Answer:
i assume that is pi
Step-by-step explanation:
3.14159 is the first didgits, but a lot of my teachers just like to round it to 3.14
hope this helps :)
The first few digits are 3.14159. The symbol is called pi if you didn't know.
I need help with this. It says to find the measure
Answers
Answer:
260 IS RIGHT
Step-by-step explanation:
What percent is represented by the shaded area?
Answers
Answer: 40%
Step-by-step explanation:
Answer:40%
Step-by-step explanation:
termine the domain and range of the given function.
The domain is
The range is
Answers
The domain and the range of the graphare
Domain: All real numbers Range: y>-2Calculating the domain and range of the function?From the question, we have the following parameters that can be used in our computation:
The graph
The above graph is a quadratic function
The rule of an quadratic function is that
The domain is the set of all real numbers
This means that the input value can take all real values
However, the range is always greater than the constant term
In this case, it is -2
So, the range is y > -2
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please help with thus question
Answers
Answer:
The Temperature at 7PM
Step-by-step explanation:
❖ Encuentren las áreas de los cinco primeros cuadrados de esta sucesión ¿Qué tipo de progresión es? ¿Cuál es el término general?
❖ Calculen la suma de las áreas de los infinitos cuadrados generados de esta forma.
Answers
Main Answer:The area of the first five squares in the sequence are: 1,4,9,16,25.This is a quadratic progression and the general term of the sequence is \(n^{2}\) ,where n is the term number.
The sum of the areas of the infinite squares generated by this sequence is infinte.
Supporting Question and Answer:
What is the formula for the sum of an infinite series of quadratic terms?
The formula for the sum of an infinite series of quadratic terms is ∑\(n^{2}\) =\(\frac{n(n+1)(2n+1)}{6}\) ,where ∑\(n^{2}\) represents the sum of the terms in the sequence,from n=1 to infinity.
Body of the Solution: The first five squares in the sequence are: \(1^{2} ,2^{2}, 3^{2}, 4^{2} ,5^{2}\)
And their corresponding areas are:
1,4,9,16,25
We can observe that this is a quadratic progression, since the difference between consecutive terms in the sequence increases by a constant amount of 2, indicating a quadratic relationship between the terms.
The general term of the sequence is \(n^{2}\) ,where n is the term number.
To calculate the sum of the areas of the infinte squares generated , we can use the formula for the sum of an infinite series of quadratic terms:
∑\(n^{2}\) =\(\frac{n(n+1)(2n+1)}{6}\) ,where ∑\(n^{2}\) represents the sum of the terms in the sequence,from n=1 to infinity.
Substituting n=∞ in the formula ,we get:
∑\(n^{2}\)= \(\lim_{n \to \infty} \frac{n(n+1)(2n+1)}{6}\)
Evaluting the limit,we get
∑\(n^{2}\)=∞
That is, the sum of the areas of the infinite squares generated by this sequence is infinte.
Final Answer: The area of the first five squares in the sequence are: 1,4,9,16,25.
This is a quadratic progression.
The general term of the sequence is \(n^{2}\) ,where n is the term number.
The sum of the areas of the infinite squares generated by this sequence is infinte.
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please help me with this problem
Answers
Step-by-step explanation:
\(12^{9} / 12 ^{3} =\)
When dividing exponential expressions with similar bases (in the problem, the base is 12), calculate the difference (this means subtract) between their exponents and keep the base:
so:
9 - 3 = 6
so the answer is : \(12^{6}\)
the boxplot shows the fuel economy ratings for 67 subcompact cars with the same model year. some summary statistics are also provided. the extreme outlier is an electric car whose electricity usage is equivalent to 112 miles per gallon. if that electric car is removed from the data set, how will the standard deviation be affected? the iqr?
Answers
Removing the electric car from the data set will reduce the standard deviation as the extreme value of 112 mpg is taken out, resulting in a decrease in the spread of the data. The interquartile range (IQR) will also be affected as the extreme outlier is taken out, will decrease the spread of the data in the boxplot.
The electric car with a rating equivalent to 112 miles per gallon is an extreme outlier, which means it is very far from the rest of the data. Therefore, removing this outlier from the data set will decrease the variability and, consequently, decrease the standard deviation. The extreme outlier with the rating equivalent to 112 miles per gallon is outside of the whiskers of the boxplot, which means it is beyond the range of the middle 50% of the data. Therefore, removing this outlier from the data set will decrease the spread of the data in the boxplot and, consequently, decrease the IQR.
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