Answer:
D
Step-by-step explanation:
Answer:
D) None of these
Step-by-step explanation:
Supplementary pairs must equal to 180 degrees. They can either be made up of two right angles, or one acute and one obtuse angle.
Use the properties of exponents to enter an equivalent expression with a single exponent. (10^4)^3 =
Answer:
10000^3
Step-by-step explanation:
Select the correct answer.
Evaluate the following expression when x = -4 and y = 4.
x
6
−
x
4
y
A.
1
,
025
4
B.
1
,
023
4
C.
16
,
385
4
D.
−
1
,
023
4
Answer:
1023/4
Step-by-step explanation:
shown in the picture
Graham carves a block of wood shaped like a cube with a square pyramid on top. How much paint will Graham need to paint the toy? Enter your answer in the box.
A cube with side length 12 centimeters and a square pyramid on top. The height of one triangular face of the pyramid is 15 centimeters.
Answer:
1224
Step-by-step explanation:
12 x 12 = 144 then do 144 x 6 = 864
15 x 12 x 1/2 = 90 then 90 x 4 = 360
Add 864 + 360 = 1224
BUT
I am not sure if this is correct. I looked up this equation and I see that it says the answer is 1080 so let me know which one you got right
Sam has a deck that is shaped like a triangle with a base of 18 feet and a height of 7 feet. He plans to build a 2:5 scaled version of the deck next to his horse's water trough.
Part A: What are the dimensions of the new deck, in feet? Show every step of your work. (4 points)
Part B: What is the area of the original deck and the new deck, in square feet? Show every step of your work. (4 points)
Part C: Compare the ratio of the areas to the scale factor. Show every step of your work. (4 points)
The 2 : 5 scaled version of the deck Sam plans to build and the dimensions of the original deck indicates;
Part A; Base length of the new deck = 7.2 feet
Height of the new deck = 2.8 feet
Part B; The area of the original deck is 63 square feet
The area of the new deck is 10.08 square feet
Part C; The ratio of the areas is the square of the scale factor
What is a scale factor?A scale factor is a number or factor that is used to enlarge or reduce the dimensions a shape or size of a figure.
The base length of the triangular deck = 18 feet
The height of the triangular deck = 7 feet
The scale factor for the scaled version Sam intends to build = 2 : 5
Part A; The dimensions of the new deck are;
Base length of the new deck using the the 2 : 5 ratio is; (2/5) × 18 = 7.2 feet
The height of the new deck = (2/5) × 7 = 2.8 feet
Part B; The area of the original deck = (1/2) × 18 × 7 = 63 square feet
Area of the new dec = (1/2) × 7.2 × 2.8 = 10.08 square feet
Part C; The ratio of the areas is; 10.08/63
Ratio of the area = 10.08/63 = 4/25 = 4 : 25
The scale factor is; 2 : 5
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Write an equation of the line that passes through the point (4, –5) with slope 2.
A. y−4=2(x+5)
B. y−4=−2(x+5)
C. y+5=2(x−4)
D. y+5=−2(x−4)
After answering the provided question, we can conclude that The slope answer is not listed as a choice, but this is the correct equation.
what is slope?In mathematics, slope is the slope of the regression of a line or curve. It is a measure of the degree to which a function's y-value varies once the x-value changes. A line's slope is usually expressed as a letter m and is able to be calculated as follows: m = (y2 - y1) / (x2 - x1) (x1, y1) and (x2, y2) is some two important points on the line. The slope of a line can be favorable, negative, equal to 0, or unknown. A positive slope means the line rises up from left to right, whereas a slope means the line falls back from left to right.
To find the equation of the line passing through the point (4,-5) with slope 2, we can use the point-slope form of the equation of a line.
y - y1 = m(x - x1)
y - (-5) = 2(x - 4)
y + 5 = 2x - 8
y = 2x - 13
y = 2x - 13
The answer is not listed as a choice, but this is the correct equation.
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Please help I’m stuck
Answer: any negative value
Step-by-step explanation:
g(x)= ax², inc on x<0 & dec on x>0
Firstly we need to get the derivative of g(x)
g'(x)=2ax
for inc interval g'(x) should be +ve
x<0 (i.e. x= -ve), then a must be -ve
for dec interval g'(x) should be +ve
x>0 (i.e. x= +ve), then a must be -ve
so in both cases a must be a negative constant
Write an expression for the area of each section of the wall.
***NOTE, that x is the TOTAL length of the rectangle so you can't call x the length of each of the 5 sections.
Answer:
50
Step-by-step explanation:
10*5=50
PLEASE HELP: PICTURE ATTACHED
Multiply 80 by number of copies sold and add to her salary:
P = 80N + 1700
Now replace N with 26:
P = 80(26) + 1700
P = 3,780
Answer:
P=1,700+80n
Total Pay if Yoko sells 26 Copies; 3,780
Hope This Helps! :) Please Mark Brainliest!
y
4
Solve for y.
Then, find the side lengths of the
largest triangle.
Fill in the green blank.
8
X
2
+
2
8
y
y
[?]
X
Enter
Help
Skip
Answer:
y = 4\(\sqrt{5}\) , ? = 10
Step-by-step explanation:
using Pythagoras' identity on the smallest right triangle
x² = 4² + 2² = 16 + 4 = 20 ( take square root of both sides )
x = \(\sqrt{20}\) = \(\sqrt{4(5)}\) = \(\sqrt{4}\) × \(\sqrt{5}\) = 2\(\sqrt{5}\)
using Pythagoras' identity on the middle right triangle
y² = 8² + 4² = 64 + 16 = 80 ( take square root of both sides )
y = \(\sqrt{80}\) = \(\sqrt{16(5)}\) = \(\sqrt{16}\) × \(\sqrt{5}\) = 4\(\sqrt{5}\)
using Pythagoras' identity on the largest right triangle
?² = x² + y² = (2\(\sqrt{5}\) )² + (4\(\sqrt{5}\) )² = 20 + 80 = 100
Take square root of both sides
? = \(\sqrt{100}\) = 10
What is the answer help
Answer: 162°
Step-by-step explanation:
To find the answer to this question, we need to find what 45% of 360 degrees (a circle) is.
First, a percent divided by 100 becomes a decimal.
45% / 100 = 0.45
Next, "of" means multiplication in mathematics.
0.45 * 360 = 162
The central angle will be 162°.
Linear or exponential? f(x) = 3x + 2
The function f(x) = 3x + 2 is a straight line with a constant slope of 3, it is a linear function.
The function f(x) = 3x + 2 is a linear function.
A linear function is a function whose graph is a straight line. It has a constant rate of change or slope, which is the coefficient of x in the equation.
In this case, the slope of the line is 3.
The y-intercept of a linear function is the value of y when x is zero. In this case, the y-intercept is 2.
Therefore, since the function f(x) = 3x + 2 is a straight line with a constant slope of 3, it is a linear function.
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The measure of the vertex angle of an
isosceles triangle is 66°. What is the
measure of each of the base angles?
Answer:
Since an isosceles triangle has two congruent angles (the base angles), let x be the measure of each base angle. Then we know that the sum of the three angles in a triangle is 180 degrees, so:
vertex angle + base angle + base angle = 180
66 + x + x = 180
2x + 66 = 180
2x = 114
x = 57
Therefore, each base angle measures 57 degrees.
What is -9 as a fraction?
Answer:
\(-\frac{9}{1}\)
Step-by-step explanation:
Its just the same way as making positive 9
a fraction, but just add the negative sign.
Hope this helps :))
=-
If f(x) = x² - 7x+5 and g(x) = - 4x, find the following composition.
(fog)(2)
(fog)(2) =
=
(Simplify your answer.)
Step-by-step explanation:
f(x) = x² - 7x+5 and g(x) = - 4x
(fog) (x) = (-4x)² -7(-4x) +5
= 16x² +28x +5
(fog)(2) = 16(2)² +28(2) +5
= 64 +56 +5
= 125
How long will it take for $5,000 to double at the rate of 2.25% interest?
Answer:
31.15
Step-by-step explanation:
How many commutes are exactly 68 minutes
Answer:
three
Step-by-step explanation:
stem. is the tens place and the leaf is the. ones place
so you want to find 68 so you look in the stem column and look for six
in the row there are 6 numbers which mean:
60, 61, 67, 68, 68, 68
as you can see there is three 68 there for the answer ths 3
Pls help for brainliest and 50 points.
If x = 4 then 2x + 6 =
If b = 12 then 2(3b + 1) =
If x = 5 then x^2 + 4 =
If x = 2 then 9x + 13 =
If x = 5 then 4x - 1 =
If x = 3 then 4x - 3 =
If s = 6 then 9 + 3s =
If x = 4 then 3x - 4 =
If n = 8 then 3(n + 1) =
If n = 6 then 5(n - 5) + 16 =
Answer:
here is your answers
Y=2X squared -12 X +20 for quadratic formula
x = (12 ± √(-16)) / 4,The solutions would be complex numbers.
What is the quadratic formula?To solve quadratic equations of the form ax2 + bx + c = 0, use the quadratic formula. For this situation, your condition is as of now as a quadratic condition, with a = 2, b = - 12, and c = 20.
The quadratic formula is:
x = (-b ± √\((b^2 - 4ac)\)) / 2a
Plugging in the values for a, b, and c, we get:
x = (-(-12) ± √\(((-12)^2 - 4(2)(20)))\) / 2(2)
Simplifying the expression inside the square root:
x = (12 ± √\((144 - 160)\)) / 4
x = (12 ± √(-16)) / 4
Since the square foundation of a negative number is definitely not a genuine number, this condition has no genuine arrangements. Complex numbers would provide the answers.
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Notice that all eight of the angles in the center of the pattern meet to form a circle. Let a° represent the measure of each pink central angle and b° represent the measure of each green central angle.
Angles a and b are
angles.
Find the lengths of the sides of the triangle PQR. P(6, 6, 1), Q(4, 4, 2), R(4, 10, 5)|PQ| = |QR| = |RP| = $$
Answer: |PQ| =3 units , |QR| = 3√5 units, |RP| = 6 units.
Step-by-step explanation:
Distance between two points (a,b,c) and (x,y,z) is given by :-
\(D=\sqrt{(x-a)^2+(y-b)^2+(z-c)^2}\)
Given: P(6, 6, 1), Q(4, 4, 2), R(4, 10, 5)
Then,
\(|PQ|=\sqrt{(6-4)^2+(6-4)^2+(1-2)^2}=\sqrt{2^2+2^2+(-1)^2}\\\\=\sqrt{4+4+1}=\sqrt{9}=3\)
\(|QR|=\sqrt{(4-4)^2+(10-4)^2+(5-2)^2}=\sqrt{0+6^2+3^2}\\\\=\sqrt{36+9}=\sqrt{45}=3\sqrt{5}\)
\(|RP|=\sqrt{(6-4)^2+(6-10)^2+(1-5)^2}=\sqrt{2^2+(-4)^2+(-4)^2}\\\\=\sqrt{4+16+16}=\sqrt{36}=6\)
So, |PQ| =3 units , |QR| = 3√5 units, |RP| = 6 units.
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of business travelers follow.
2 6 7 8 9 9 9 10 10 10 10 9 4 5 6 6 8 7 9 10 9
6 5 7 6 8 4 2 10 9 9 10 10 9 8 7 5 9 9 3 6 2 9
7 10 7 9 9 9 9
Required:
Develop a confidence interval estimate of the population mean rating for Miami.
Answer: 6.8622 ; 8.1778
Step-by-step explanation:
Given the data:
2 6 7 8 9 9 9 10 10 10 10 9 4 5 6 6 8 7 9 10 9
6 5 7 6 8 4 2 10 9 9 10 10 9 8 7 5 9 9 3 6 2 9
7 10 7 9 9 9 9
Assume a confidence interval of 95%
Using calculator :
The mean of the distribution (m) = 7.52
Standard deviation (s) = 2.314
Sample size),
Obtaining the t score ;
Degree of freedom (df) = (n-1) = 50 - 1 = 49
t(1-α/2), 49 = t(0.025, 49) = 2.01 ( t distribution table)
Margin of Error :
2.01 * s/√n = 2.01 * 2.314/7.0710678
Margin of Error (E) = 0.6578
Confidence interval:
(Mean - E) ≤μ≤ (mean + E)
(7.52 - 0.6578) ≤μ≤ (7.52 + 0.6578)
6.8622 ≤μ≤ 8.1778
Coins are placed into a treasure chest, and each coin has a radius of 1.4 inches and a height of 0.0625 inches. If there are 230 coins inside the treasure chest, how many cubic inches of the treasure chest is taken up by the coins? Round to the nearest hundredth and approximate using π =3.14
A: 0.38 in²
B: 126.39 in³
C: 353.88 in³
D: 88.47 in³
The total volume taken by the coins is 88.47 cubic inches, so the correct option is D.
How many cubic inches are taken up by the coins?The coins are cylinders with a radius of 1.4 inches and a height of 0.0625 inches.
Remember that the volume of a cylinder is given by:
volume = (height)*pi*(radius)^2
Where pi = 3.14
Then here the volume of each coin is:
V = (0.0625 in)*3.14*(1.4 in)^2 = 0.384 in³
And there are 230 coins, so the total volume is:
V = 230*0.384 in³ = 88.47 in³
So the correct option is D.
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Answer: D: 88.47 in³
Step-by-step explanation: So what you want to do is first find the individual volume of the coins. Use the volume formula: V = πr^2h
Take 1.4 and times it by itself
1.4 x 1.4 = 1.96
Now multiply 1.96 by 0.0625
1.96 x 0.0625 = 0.1225
And times 0.1225 by pi, or in this case, 3.14
0.1225 x 3.14 = 0.38465
Now you have found the individual volume of each coin. You are trying to find how much space all of the coins take up together. The question says that there is 230 coins in total. So times 0.38465 by 230 to find how much space all the coins take up.
0.38465 x 230 = 88.4695 in³
Now round it to the nearest hundredth: 88.47 in³
That is your answer.
Also I took the same test and I picked 88.47 inches cubed and got it right.
Proof:
Have a good day :)))
A bottle contains 30 fluid Ounces of orange juice and 18 fluid Ounces of pineapple Juice. Whichgraph has a slope that best represents the ratio of orange juice to pineapple juice in thisbottle?
Explanation:
The ratio of orange juice to pineapple juice is:
\(r=\frac{\text{orange juice}}{\text{ pineapple juice}}=\frac{30}{18}=\frac{5}{3}\)And the function can be written as:
\(\text{orange juice}=\frac{5}{3}\text{ pineapple juice}\)To choose one graph we have to identify one point in each of them and check if the expression above is true for that point. This chosen point cannot be (0,0).
Answer:
help pls, will mark brainliest !!!
Answer:
The answer is A.
Step-by-step explanation:
A has a common vertex but the angles are not adjacent.
: )
Answer:
A
Step-by-step explanation:
Please help me answer the question from the photo
Answer:
A
Step-by-step explanation:
as it is a reflection (as in a mirror or in a lake, or ...), the distances from either side of the mirror must be equal.
Please help if you can thank you
Answer:
c. -18.5x ≤ 407
Step-by-step explanation:
-18.5 x -22 = 407
-18.5 x 0 = 0
-18.5 x 6 = -111
-18.5 x 17 = -314.5
-18.5 x 60 = -1110
(All products are either less than or equal to 407)
CAN SOMEONE HELP WITH THIS QUESTION?✨
The distributive property of multiplication can be used to calculate the sum of the difference between the multiples of the variables expression as follows;
\(\sum\limits_{i = 1}^{124} (29\cdot a_i - 13 \cdot b_i)\) = -30
What is the distributive property?The distributive property states that multiplying the difference between addend by a value produces a result which is equivalent to the multiplication of each addend individually and finding the difference from the resulting values.
The distributive property of multiplication indicates that we get;
Where; \(\sum\limits_{i=1}^{124} a_i = -10\), and \(\sum\limits_{i=1}^{124} b_i = -20\)
\(\sum\limits_{i=1}^{124} (29\cdot a_i - 13\cdot b_i) = 29 \times \sum\limits_{i=1}^{124} a_i - 13 \times \sum\limits_{i=1}^{124} b_i = 29 \times (-20) - 13 \times (-10))\)
29 × (-10) - 13 × (-20) = -30
Therefore;
\(\sum\limits_{i=1}^{124} (29\cdot a_i - 13\cdot b_i) =-30\)
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solve inequality t/4>7
Answer:
t > 28.
Step-by-step explanation:
First, write it and collect like terms:
t / 4 > 7
t > 7 x 4
t > 28.
Select the correct answer.
Which expression is equivalent to the given expression?
6ab / (a^0b^2)^4
A. 6a / b^5
B. 6a / b^7
C. 6 / a^3b^7
D. 6 / a^3b^5
A box of chocolates contains 4 hard centres, 6 soft centres and 2 plain chocolates.
A woman chooses a chocolate at random.
What is the probability that she takes either a hard centre or a soft centre?
Give your answer as a fraction in its lowest terms.
Answer:
The chance of taking a hard or soft chocolate would be 5/6
Step-by-step explanation:
Hope this helped can I have brainliest please
The probability that she takes either a hard center or a soft center is, 5/6
What is mean by Probability?The term probability refers to the likelihood of an event occurring. Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
Given that;
A box of chocolates contains 4 hard centers, 6 soft centers and 2 plain chocolates.
Hence, We get;
Number of chocolates = 4 + 6 + 2 = 12
And, Number of a hard center or a soft center chocolates = 4 + 6 = 10
Thus, The probability that she takes either a hard center or a soft center is,
⇒ 10 / 12
⇒ 5/6
Hence, The probability that she takes either a hard center or a soft center is, 5/6
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