what’s the distance between (2,8) and (-6,-2)
Answer:
Root
Step-by-step explanation:
Answer:
The distance between (2,8) and (-6,-2)
is √100+64
Step-by-step explanation:
Whats the answer 4-2(3+6)-3-
Answer:
-17
Step-by-step explanation:
P - Parenthesis
E - Exponents
M - Multiply
D - Divide
A - Add
S - Subtract
Multiply: 4-6+12-3
Add: 4-18-3
Subtract: -17
If cos(x) = -5/6, x in quadrant II, then find exact values (without finding x):
sin(2x)= ?
cos(2x)=?
tan (2x)=?
If cos(x) = -5/6, and x lies in quadrant"II", then exact values are:
sin(2x) = (-5√11)/(18);
cos(2x) = 7/18;
tan (2x) = -5√11/7.
We know that, Cos(x) = -5/6 and "x" is in quadrant II, so, we can use the Pythagorean identity to find sin(x):
sin(x) = √(1 - cos²(x)) = √(1 - (-5/6)²) = √(1 - 25/36) = √(11/36) = √11/6
Using the double angle trigonometry identities for sine and cosine, we find sin(2x) and cos(2x):
Substituting the value of Sin(x) and Cos(x),
We get,
sin(2x) = 2sin(x)cos(x) = 2(√11/6)(-5/6) = (-5√11)/(18);
cos(2x) = cos²(x) - sin²(x) = (-5/6)² - (11/6) = 25/36 - 11/36 = 14/36 = 7/18;
Finally, we find tan(2x) by using the identity:
tan(2x) = sin(2x)/cos(2x) = (-5√11/18) / (7/18) = -5√11/7.
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what is the value of this expression?
10÷2+3×5-3
Do the following points lie on the graph of
9x − 3y = 63? I need the steps of how I got these right
Answer:
a. The point is on the graph
b. The point is not on the graph
Step-by-step explanation:
To know if any of the points lie on the graph of 9x - 3y = 63, substitute the value of each given point into the equation to see if the equation is true.
a. (5, -6)
Substitute x = 5 and y = -6 into 9x - 3y = 63:
9(5) - 3(-6) = 63
45 + 18 = 63
63 = 63 (the equation is TRUE)
Therefore, (5, -6) is a point on the graph.
b. (2, 1)
Substitute x = 2 and y = 1 into 9x - 3y = 63:
9(2) - 3(1) = 63
18 - 3 = 63
15 = 63 (this is NOT TRUE)
Therefore, the point (2, 1) is not a point on the graph.
Help. Came up with 3 different answers.
Nora ordered a set of yellow and red pins. She received 21 yellow pins and 39 red pins. What percentage of the pins were yellow
Answer:
The answer is 21/60
Please help me with this question please help me I beg you
Step-by-step explanation:
Given
f(x) = 5 / 2x - 1
f^-1( x) = ?
Let
y = f(x)
y = 5/2x - 1
Interchanging the roles of x and y we get
x = 5/2y - 1
2y - 1 = 5/x
2y = 5/x - 1
y = (5/x - 1)/ 2
f^-1(x) = ( 5/x - 1) / 2
Hope it will help :)
HELPPPPP
i need help quick
By using the substitution method, the value of x is equal to -1 and the value of y is equal to 1.
How to solve this system of equations?In order to solve the given system of equations, we would apply the substitution method. From the information provided in the image attached above, we have the following system of equations:
2x - 3y = -5 .......equation 1.
3x + y = -2 .......equation 2.
From equation 2, we have:
y = -3x - 2
By using the substitution method to substitute equation 3 into equation 1, we have the following:
2x - 3(-3x - 2) = -5
2x + 9x + 6 = -5
11x = -5 - 6
x = -11/11
x = -1
For the value of y, we have:
y = -3x - 2
y = -3(-1) - 2
y = 1.
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Which one of these pictures is not like the others? Explain what makes its different using ratios.
Answer:
there is no picture
Step-by-step explanation:
Davis burns 1,080 calories when he runs for 2.5 Chours.)The number of calories he burns while
swimming Y)can be described using the
equation y = 266x, where Prepresents the number of hours Davis swims. How many more calories will Davis burn running for 30 minutes) than swimming for 30 minutes assuming the rates remain constant
Answer:
...
Step-by-step explanation:
To find the number of calories Davis burns while running for 30 minutes, we can use the information that he burns 1080 calories running for 2.5 hours.
We know that 30 minutes is 1/120 of 2.5 hours. So, we can divide the total number of calories by 120 and we get the calorie burn for 30 minutes:
1080 calories / 120 = 9 calories
The number of calories Davis burns while swimming for 30 minutes can be determined by using the equation y = 266x, where x represents the number of hours he swims. We know that he swims for 30 minutes, or 1/120 hours, so we can plug that value into the equation:
y = 266(1/120) = 2.216 calories
So, Davis burns 7 calories more running for 30 minutes than swimming for 30 minutes, assuming the rates remain constant.
make e the subject
e-5=2f
Answer:
e-5=2f
take '-5' to the other side where '2f' is
e=2f+5
Find (2,-3) on the coordinate plane.
Step 1 Start at the origin. 2 is the
x-coordinate and it is positive.
So move right 2 units,
Step is the y-coordinate and it is
negative. So move down 3 units.
Find the point on the coordinate plane.
1. (3, 4). Label it A.
2. (-2, 6). Label it B.
3. (5,-5). Label it C
4. (-4,-2). Label it D.
Write the coordinates of the point.
5. E
6. F
7. G.
6. H
Spiral Review
(Chapter 21, Lesson 3) KEY MG 2.1, KEY MG 2.0
9. Plot point (1, 3) on the coordinate grid.
7
10. Plot point (2, 6) on the coordinate grid.
6
5
11. Points (1, 3) and (2, 6) are on the graph of the equation
y = 3x. What are two other points on that graph?
4
3
2
1
0
2
A
4-
3
2
1-
0
70
G
(2-3)
H
1 2 3 4 5 6 7 x
Answer:
See below.
I really hope it helps! :)
Step-by-step explanation:
(3, 4) location:
(3, 4) is located in quadrant I. From 0, 0, move 3 spaces to the right and 4 spaces up. That will lead you to (3, 4) (point A).(-2, 6) location:
Located in quadrant II. Move 2 spaces to the left (From (0, 0)) and 6 spaces up. (Point B).(5, -5)
(5, -5) is located in quadrant IV. (0, 0), move 5 spaces to the right, then 5 spaces downward. (Point C).(-4, -2)
Located in Quadrant III. From (0, 0), move 4 spaces to the left, then 2 spaces downward.Point E
Located at cords (6, 1).Point F
Located at cords (-4, 3)Point G:
Located at cords (1, -4 or -5)Point H:
Located at cords (2, 5)Sadly, I can't solve the spiral review. I am sorry :(
Three friends, Billy, Joe and Paul plan to go on go on holiday.
Billy pays 1/2of the holiday cost.
Joe pays 2/5 of the holiday cost.
What fraction of the holiday cost does Paul pay.
Paul pays 1/10 of the holiday cost, while Billy pays 1/2 and Joe pays 2/5.
To determine the fraction of the holiday cost that Paul pays, we need to find the remaining portion after Billy and Joe have paid their shares.
Let's start by calculating the sum of the fractions Billy and Joe have paid:
Billy's share = 1/2
Joe's share = 2/5
To find the combined share of Billy and Joe, we add their fractions:
1/2 + 2/5
To add these fractions, we need a common denominator. The least common multiple of 2 and 5 is 10. So, we can convert the fractions to have a common denominator of 10:
1/2 = 5/10
2/5 = 4/10
Now, we can add the fractions:
5/10 + 4/10 = 9/10
Billy and Joe have paid a combined fraction of 9/10 of the holiday cost. To find the fraction that Paul pays, we need to determine the remaining portion, which can be calculated by subtracting the combined fraction from 1 (since 1 represents the whole).
Remaining fraction = 1 - 9/10
= 10/10 - 9/10
= 1/10
Therefore, Paul pays 1/10 of the holiday cost.
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please help i'll mark big brain
Answer:
Step-by-step explanation:
5.4 times 2 3/4 ???????????????????????????????????????????????????
Answer: In decimal form, 14.85
Answer in fraction form: 297/20
Step-by-step explanation:
PLEASE HELP QUICK
Is 8 a solution to - x + 9 = 13 ? Explain.
Answer:
hold on..
Step-by-step explanation:
Answer:
x = − 4
Step-by-step explanation:
I put your question in a math calculator and this is what I got. Good Luck
Find the measure of angle 4
Answer:
38
Step-by-step explanation:
Notice that the first triangle is an isosceles triangle, meaning that the base angles are equivalent. Since one angle is 62, we know that the other is 62 as well, which makes 124. This means that angle 2 is 56 degrees. Since 2 and 3 are on the same 'line', they both add up to 180. If 2 is 56, then angle 3 is 124. So the three angles inside the triangle are 124, 18, and x. So, 124+18=142. 180-142= 38
The rate in the portion formula is not always expressed with a percent symbol?
That's correct. The rate in the portion formula can be expressed as a decimal, fraction, or percentage, depending on the context and what is most convenient for the problem being solved.
What is the proportional and ratio formula?How do you calculate ratio and proportion? Ans: The ratio formula is written as a: b a/b for any two numbers. Contrarily, the percentage formula is written as a:b::c:da:b::c:da:b=cd.
What does a ratio example look like?An equation in which two ratios are made equal is known as a percentage. As an illustration, you could express the ratio as 1: 3 if there is 1 guy and 3 girls (for every one boy there are 3 girls) 1 out of 4 are boys, and 3/ 4 are girls.
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I have no idea how this is worked out but the question is find the quotient and remainder of x^3-x^2-3 / x+1
We want to solve the following division:
\(\frac{x^3-x^2-3}{x+1}\)Using the following division we want to locate the polynomials as shown in the next figure:
We have that the polynomial of the red square is:
\(x^3-x^2-3\)we have that its coefficients (the number behind each terms) are:
for x³: 1
for x²: -1
for x: 0
for numbers: -3
Then:
for the polynomial of the purple square (x - z) = (x + 1), we have that
x + 1 = x - (-1), then
x - (-1) = x - z
Then z = -1:
The numbers of the answer section are going to be the addition of each column, and they will be multiplied by z = -1, as the following figure shows:
In the answer section we will have the coefficients of the quotient, and the last number is the remainder:
Now, we have the answer
Answer - the quotient is:
x² -2x + 2
and the remainder is: -5
A vase in the shape of a cube measures 8 inches on each side. The vase is half full with water. How many cubic inches of water are in the vase?
The solution is
??????
in³.
Answer:
64in cubed
Step-by-step explanation:
Because if the vase if half full, half of 8 is 4. To find the volume of a cube is l x W x H. So 4 x 4 x 4= 64.
Desperate Need Of Help
The domain and range of the graph above in interval notation include the following:
Domain = [-6, 3]
Range = [-3, 3]
What is a domain?In Mathematics and Geometry, a domain refers to the set of all real numbers (x-values) for which a particular function (equation) is defined.
In Mathematics and Geometry, the horizontal portion of any graph is used to represent all domain values and they are both read and written from smaller to larger numerical values, which simply means from the left of any graph to the right.
By critically observing the graph shown in the image attached above, we can reasonably and logically deduce the following domain and range:
Domain = [-6, 3] or -6 ≤ x < 3.
Range = [-3, 3] or -3 < y < 3
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(10)
In 2008, the average new car price was approximately $27,700. In 2010,
the average new car price had increased to $29,200. Assuming a linear
relationship, what will be the approximate new car price in 2014?
A $33,700
B. $32,200
C. $30,700
D. $29,950
The approximate price of the new car in 2014 is:
B. $32,200
How to find the approximate new car price in 2014?The general form of a linear equation is given by:
y = mx + c
where y is the future price of the car, x is the number of years, m is the rate of change of price and c is the initial price of the car
c = $27,700
m = ($29,200 - $27,700)/(2010 - 2008)
m = 1500/2
m = $750 per year
In 2014, x = 2014 - 2008 = 6 years
Substituting into y = mx + c:
y = 750(6) + 27,700
y = 4500 + 27700
y = $32,200
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Evaluate the triple integral ∭EzdV where E is the solid bounded by the cylinder y2+z2=81 and the planes x=0,y=9x and z=0 in the first octant.
Answer:
I = 91.125
Step-by-step explanation:
Given that:
\(I = \int \int_E \int zdV\) where E is bounded by the cylinder \(y^2 + z^2 = 81\) and the planes x = 0 , y = 9x and z = 0 in the first octant.
The initial activity to carry out is to determine the limits of the region
since curve z = 0 and \(y^2 + z^2 = 81\)
∴ \(z^2 = 81 - y^2\)
\(z = \sqrt{81 - y^2}\)
Thus, z lies between 0 to \(\sqrt{81 - y^2}\)
GIven curve x = 0 and y = 9x
\(x =\dfrac{y}{9}\)
As such,x lies between 0 to \(\dfrac{y}{9}\)
Given curve x = 0 , \(x =\dfrac{y}{9}\) and z = 0, \(y^2 + z^2 = 81\)
y = 0 and
\(y^2 = 81 \\ \\ y = \sqrt{81} \\ \\ y = 9\)
∴ y lies between 0 and 9
Then \(I = \int^9_{y=0} \int^{\dfrac{y}{9}}_{x=0} \int^{\sqrt{81-y^2}}_{z=0} \ zdzdxdy\)
\(I = \int^9_{y=0} \int^{\dfrac{y}{9}}_{x=0} \begin {bmatrix} \dfrac{z^2}{2} \end {bmatrix} ^ {\sqrt {{81-y^2}}}_{0} \ dxdy\)
\(I = \int^9_{y=0} \int^{\dfrac{y}{9}}_{x=0} \begin {bmatrix} \dfrac{(\sqrt{81 -y^2})^2 }{2}-0 \end {bmatrix} \ dxdy\)
\(I = \int^9_{y=0} \int^{\dfrac{y}{9}}_{x=0} \begin {bmatrix} \dfrac{{81 -y^2} }{2} \end {bmatrix} \ dxdy\)
\(I = \int^9_{y=0} \begin {bmatrix} \dfrac{{81x -xy^2} }{2} \end {bmatrix} ^{\dfrac{y}{9}}_{0} \ dy\)
\(I = \int^9_{y=0} \begin {bmatrix} \dfrac{{81(\dfrac{y}{9}) -(\dfrac{y}{9})y^2} }{2}-0 \end {bmatrix} \ dy\)
\(I = \int^9_{y=0} \begin {bmatrix} \dfrac{{81 \ y -y^3} }{18} \end {bmatrix} \ dy\)
\(I = \dfrac{1}{18} \int^9_{y=0} \begin {bmatrix} {81 \ y -y^3} \end {bmatrix} \ dy\)
\(I = \dfrac{1}{18} \begin {bmatrix} {81 \ \dfrac{y^2}{2} - \dfrac{y^4}{4}} \end {bmatrix}^9_0\)
\(I = \dfrac{1}{18} \begin {bmatrix} {40.5 \ (9^2) - \dfrac{9^4}{4}} \end {bmatrix}\)
\(I = \dfrac{1}{18} \begin {bmatrix} 3280.5 - 1640.25 \end {bmatrix}\)
\(I = \dfrac{1}{18} \begin {bmatrix} 1640.25 \end {bmatrix}\)
I = 91.125
help me with this question please
Answer:
\( \sf \: a) \: 1\)
Step-by-step explanation:
Given values of variables,
→ e = 3.2
→ d = 10
→ u = 7
The problem needed to solve is,
\( \sf \rightarrow \: \frac{ue}{eu} \)
Let's solve the problem,
\( \sf \rightarrow \: \frac{ue}{eu} \)
\( \sf \rightarrow \: \frac{(7 \times 3.2)}{(3.2 \times 7)} \)
\( \sf \rightarrow \: \frac{22.4}{22.4} \)
\( \sf \rightarrow \: \frac{1}{1} = 1\)
Hence, option (a) is correct.
Answer:
Option A ) 1
Step-by-step explanation:
\(\frac{ue}{eu} = \frac{3.2X7}{7X3.2} = \frac{22.4}{22.4} = 1\)
Hence , Option A ) is the answer
What is -36° converted to radians?
Answer:
A
Step-by-step explanation:
what is the negation of the statement "all summer days are muggy"
Answer:
What is the negation of the statement?
In Mathematics, the negation of a statement is the opposite of the given mathematical statement. If “P” is a statement, then the negation of statement P is represented by ~P. The symbols used to represent the negation of a statement are “~” or “¬”.
Step-by-step explanation:
Suta purrachina za waurdo
The length of a rectangular poster is 2 more inches than two times its width. The area of the poster is 84 square inches. Solve for the dimensions (length and width) of the poster.
Step-by-step explanation:
w = width
2w + 2 = Length
Area = W x L = 84 = w (2w+2)
84 = 2w^2 + 2w
0 = 2w^2 + 2w - 84 Use Quadratic Formula
a = 2 b=2 c = -84
to find
W = 6 then L = 14 inches
Matthew examines the relation shown in the below.
{(4,-11), (3,1), (0,1), (2,6), (3, -1)}
Is the relation a function? Why or why not?
No. There are x values which map to more than 1 y-value.
Yes. Every y-value maps to exactly 1 x-value.
No. There are y-values which map to more than 1 x-value.
Yes. Every x-value maps to exactly 1 y-value.
No, there are x values which map to more than 1 y-value.
Given that Matthew examines the relation as shown in the below.
{(4, -11), (3,1), (0,1), (2,6), (3, -1)}
We need to check whether the relation is a function or not,
So, we know that,
A relation can map inputs to multiple outputs. It is a function when it maps each input to exactly one output. The set of all functions is a subset of the set of all relations.
If any x values are repeated, and the corresponding y values are different, then we have a relation and not a function.
Here we can see that the y values are repeated, so it is not a function.
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Find the slope of a line through the points (-3, 11) and (13,7)