Answers
Answer: E. 40
Step-by-step explanation:
The x-intercept of a line is when the y coordinate is equal to zero, so input zero in for y and solve for x to find the x-intercept.
1/2x + 3/5(0) = 20
1/2x = 20
x = 40
Related Questions
A car travels 200 miles using 8 gallons of gasoline. What's the unit rate in miles per gallon? Please write
your work and don't forget the unit.
Answers
Answer:
0.04
Step-by-step explanation:
what you would do is 8 divided by 200 and get 0.04
please mark me brainliest
Answer:
hey i need help with the same test can you help me please. I need the answers please help me.
Step-by-step explanation:
State sales tax went from 5% to 5.5%. Calculate the absolute increase and the relative increase in sales tax.
Since all values shown are percentages, it may help to replace the % symbol with the word "percent" and treat it as a label (like dollars or pounds). It is not necessary to
convert the percentages into decimals before performing calculations with them.
Recall that when absolute change of percentages is calculated, a specific unit is required for the result.
The absolute increase is
-Select-
The percentage increase is
-Select-
Dominique says that the state sales tax increase is really bad because it's a 10% increase. Shawn says that the state sales tax increase is not too bad because it's just a
one-half percentage point increase. Who's right?
O Shawn only
O Dominique only
O Both
O Neither
Answers
Misha is thinking of a negative integer greater that -4. What number could she be thinking of?
Answers
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
The answer is 60
Step-by-step explanation:
How to find what percent of X is Y. Use the percentage formula: Y/X = P% Example: What percent of 60 is 12? Important! The result will always be in decimal form, not percentage form.
(i know this isn’t the clearest formula but its what i used)
Answer:
60
Step-by-step explanation:
To make this problem a little easier, think of 80% as 4/5.
(4/5 = 48/x) ~the unknown is represented by x
After cross multiplying, or "the butterfly method" you would get:
4x = 5(48)
4x = 240
240/4 = 60!
Which equations have a solution of 6?
Choose ALL that are correct!
Answers
Answer:
x+2=8
because the equation have solution of 6
Answer:
8-2x=2-x
x+2=8
Step-by-step explanation:
write the english phrase as an algebraic expression. Let x represent the number
Answers
The english phrase "Seven less than four times a number" as an algebraic expression is 4x - 7
Writing the english phrase as an algebraic expressionFrom the question, we have the following parameters that can be used in our computation:
seven less than four times a number
Represent the number with x
So:
four times a number means 4x
So, we have
seven less than 4x
seven less than means - 7
So, we have
4x - 7
Hence, the english phrase as an algebraic expression is 4x - 7
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Complete question
write the english phrase as an algebraic expression. Let x represent the number
Seven less than four times a number
Yana needs at least $31.50 for art supplies. He earns $3.50 per day as a dog walker. Which graph represents the number of days Yana must work to earn enough money to buy the art supplies? A. 84456 B. 84455 C. 84454 D. 84453
Answers
Answer:
9 days
Step-by-step explanation:
31.50÷3.50 is 9 and 9×3.50 is 31.50
solve the inequality and specify the answer
1-3x \(\leq\)0
Interval notation
Answers
Step-by-step explanation:
hope it helps
see attached
![solve the inequality and specify the answer 1-3x [tex]\leq[/tex]0Interval notation](https://i5t5.c14.e2-1.dev/h-images-qa/answers/attachments/FEzgtxmZjQg1t9yg2HyA2WuLofyuDRtu.jpeg)
Which expression has a greater value: log^3 1/3 or log ^b 1/b? Explain how you know.
Answers
The value of both the logarithmic expressions is equal which is equal to the negative one.
What is a logarithm?Logarithms are another way of writing exponent. A logarithm with a number base is equal to the other number. It is just the opposite of the exponent function.
The expressions are given below.
\(\log _3 \dfrac{1}{3} \ and \ \log _b \dfrac{1}{b}\)
This can be written as
\(\log _3 3^{-1} \\\\\log _bb^{-1}\)
We know that the property of the logarithm
\(\log _a a = 1\\\\\log a^b = b\log a\)
Then we have
\(\log _3 3^{-1} = -1 \log _33 = -1\\\\\log _bb^{-1} = -1 \log _bb = -1\\\)
The value of both the expressions is equal which is equal to the negative one.
More about the logarithm link is given below.
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Simply the expression 50 - 2 (6 + 1)
Answers
Answer:
36
Step-by-step explanation:
Answer: 36
Step-by-step explanation: Good luck!!
50 - 2(6+1)
50 - 2(7)
50 - 14
36
To make a big batch of cookies for her father, Annmarie needs 1 1/4 pounds of chocolate chips, 3/4 pounds of walnuts, and 12 ounces of raisins. How many ounces of these three ingredients does she need in all?
A. 28ounces
B. 44ounces
C. 48ounces
D. 76ounces
Answers
Answer: B. 44 ounces
Answer:
what was it ??
Step-by-step explanation: i taking the test
test test test test test test test test test test
Find the sum: (3x3 + 2x2 + x + 4) + (2x3 - x2 - 3x + 1)
Answers
Make sure to combine like terms and watch out for if it’s subtraction or addition.
Answer:
24-4x
Step-by-step explanation:
That's your answer
If the function m(x) has the point (5, 2) on its graph name a point that would be on the function m(5x).
(1, 2)
(10, 2)
(5, 10)
(25, 2)
Answers
Answer:
21
Step-by-step explanation:
PLEASE I NEED HELP the question is,
In the diagram of triangle LAC and triangle DNC below, LA = DN, CA = CN, and DAC is perpendicular to LCN.
a) Prove that triangle LAC = triangle DNC.
b) Describe a sequence of rigid motions that will map triangle LAC onto triangle DNC.
Answers
Answer:
1244 DCD
Step-by-step explanation:
The graph of � = ∣ � ∣ y=∣x∣y, equals, vertical bar, x, vertical bar is shifted down by 9 99 units and to the right by 4 44 units. What is the equation of the new graph? Choose 1 answer: Choose 1 answer: (Choice A) � = ∣ � − 9 ∣ − 4 y=∣x−9∣−4y, equals, vertical bar, x, minus, 9, vertical bar, minus, 4 A � = ∣ � − 9 ∣ − 4 y=∣x−9∣−4y, equals, vertical bar, x, minus, 9, vertical bar, minus, 4 (Choice B) � = ∣ � − 4 ∣ − 9 y=∣x−4∣−9y, equals, vertical bar, x, minus, 4, vertical bar, minus, 9 B � = ∣ � − 4 ∣ − 9 y=∣x−4∣−9y, equals, vertical bar, x, minus, 4, vertical bar, minus, 9 (Choice C) � = ∣ � − 4 ∣ + 9 y=∣x−4∣+9y, equals, vertical bar, x, minus, 4, vertical bar, plus, 9 C � = ∣ � − 4 ∣ + 9 y=∣x−4∣+9y, equals, vertical bar, x, minus, 4, vertical bar, plus, 9 (Choice D) � = ∣ � − 9 ∣ + 4 y=∣x−9∣+4y, equals, vertical bar, x, minus, 9, vertical bar, plus, 4 D � = ∣ � − 9 ∣ + 4 y=∣x−9∣+4
Answers
An equation of the new graph is: A. y = ∣x - 4∣ - 9.
What is a translation?In Mathematics and Geometry, the translation of a graph to the right simply means a digit would be added to the numerical value on the x-coordinate of the pre-image:
g(x) = f(x - N)
Conversely, the translation of a graph downward simply means a digit would be subtracted from the numerical value on the y-coordinate (y-axis) of the pre-image:
g(x) = f(x) + N
Since the parent function y = ∣x∣ was translated 4 units to the right and 9 units down in order to produce the graph of the image, we have:
y = ∣x - 4∣ - 9
Read more on function and translation here: brainly.com/question/31559256
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
A
-6
Find the distance, d, of AB.
A = (-5, 5) B = (5, -5)
-4 -2
f
&
-2
-4
9
N
4
B
d = √|×₂ − ×₁1² + y2 - Y₁|²
d = [?]
Round to the nearest tenth.
Distance
Enter
Answers
Answer:
88
Step-by-step explanation:
PLEASE HELP ME!!!!
Find the expected value of the winnings
from a game that has the following
payout probability distribution:
6 8
10
Payout ($) 0 4
Probability 0.5 0.2 0.15 0.1 0.05
Expected Value = [?]
Round to the nearest hundredth.
Answers
Answer:
3.00
Step-by-step explanation:
Given that :
Payout(X) : ___ 0 ___ 4 ___ 6 ____ 8 _____ 10
Probability (p(x) 0.5 _ 0.2 __0.15 __0.1 ___ 0.05
Expected value :E(X) = ΣX* p(x)
E(X) = (0*0.5) + (4*0.2) + (6*0.15) + (8*0.1) + (10*0.05)
E(X) = 3
Expected value = 3.00
A survey was given to a random sample of the residents of a town to determine whether they support a new plan to raise taxes in order to increase education spending. The survey reported a confidence interval that between 22% and 32% of the residents supports the plan. What is the margin of error on the survey? Do not write ± ± on the margin of error.
Answers
Answer:
\(\Huge \bold{\boxed{\boxed{\text{5\%}}}}\)
Step-by-step explanation:
To calculate the margin of error for the survey, we need to use the formula:
\(\large \text{Margin of error} = \large \text{$\frac{\text{Range of values}}{2}$}\)
The range of values is the difference between the upper and lower bounds of the interval. In this case, the lower bound is 22% and the upper bound is 32%, so the range of values is:
\(\large \text{Range of values = 32\% - 22\% = 10\%}\)
Substituting this value into the formula, we get:
\(\large \text{Margin of error = $\frac{10\%}{2}$ = 5\%}\)
Therefore, the margin of error on the survey is 5%.
Find the missing sides
Answers
Answer:
i believe _=6 (the horizontal side, as it says on the picture,) | = 6 (the vertical side,) and \ = 8.48 (the diagonal)
Step-by-step explanation:
To find the diagonal, you have to use the Pythagorean Theorem, which is a^2 + b^2 = c^2
So, a and b both equal 6, square both of those, you got 36 for each.
Now, add them together and youll get 72
The square root of 72 is around 8.48
Although, im not entirely sure if thats correct or not, so i wouldnt really recommend putting this as your answer :|
A ball is thrown downward from the top of a 120-foot building with an initial velocity of 20 feet per second. The
height of the ball h in feet after t seconds is given by the equation h= - 16t²-20t+120. How long after the
ball is thrown will it strike the ground?
Answers
Answer:
\(t=\frac{-5+\sqrt{505}}{8}\)
Step-by-step explanation:
The ball strikes the ground when h = 0.
\(-16t^2 - 20t + 120 = 0 \\ \\ 4t^2 + 5t - 30=0 \\ \\ t=\frac{-5 \pm \sqrt{5^{2}-4(4)(-30)}}{4(2)} \\ \\ t=\frac{-5 \pm \sqrt{505}}{8}\)
However, as time most be positive, we only consider the positive case.
So,
\(t=\frac{-5+\sqrt{505}}{8}\)
Two rectangles of the same shape have areas of 676 and 3,457 square centimetres. If the shorter side of the larger rectangle is 41 centimetres, what are the dimensions of the smaller one?
Answers
The dimensions of the smaller rectangle are 13 centimeters by 52 centimeters.
Let's assume the dimensions of the smaller rectangle are length L and width W (in centimeters).
We know that the area of the smaller rectangle is 676 square centimeters:
L * W = 676 ----(1)
We also know that the larger rectangle has a shorter side of 41 centimeters. Let's say the corresponding longer side of the larger rectangle is H centimeters.
The area of the larger rectangle is 3457 square centimeters:
41 * H = 3457 ----(2)
Our current set of equations contains two unknowns. In order to get the smaller rectangle's dimensions, we can simultaneously solve these equations.
In order to find H, we can use equation (2):
H = 3457 / 41
H ≈ 84.22
Now we can substitute this value of H into equation (1):
L * W = 676
We need to find the dimensions (L and W) that multiply to give 676. We can start by looking for factors of 676.
Factors of 676: 1, 2, 4, 13, 26, 52, 169, 338, 676
By trial and error, we can see that the factors that give a close match to the dimensions of the larger rectangle (41 and 84.22) are 13 and 52:
L = 13
W = 52
Therefore, the smaller rectangle has measurements of 13 by 52 centimetres.
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Help me pleas whith this
Answers
Evaluate{3(x+4)(x+1)}/{(x+2)(x-2)} for x=4
A. 10
B.-{10}/{3}
C.{10}/{3}
D. -10
Answers
Answer:
a) 10
Step-by-step explanation:
Given information,
→ [3(x + 4)(x + 1)]/[(x + 2)(x - 2)]
→ x = 4
Let's evaluate the expression,
→ [3(x + 4)(x + 1)]/[(x + 2)(x - 2)]
→ [3(4 + 4)(4 + 1)]/[(4 + 2)(4 - 2)]
→ [(3 × 8)(5)]/(6 × 2)
→ (24 × 5)/12
→ 120/12 = 10
Therefore, the answer is 10.
Which expression is equivalent to (3.1x−2.4y+1.9)+(2.2x−1.4y−3.4)?
Answers
Answer:
5.3x - 3.8y - 1.5
Answer:
(3.1x+2.2x)+(−2.4y+1.4y)+(1.9+3.4)
Step-by-step explanation:
I just did this problem :>
Help me answer these questions fast please guys
1. When a function is called f(x), the x is also known as the is ___ of the function.
A. Range
B. Output
C. Domain
D. Degree
2. When a is called f(x), the output is also known as the ___ of the function.
A. Output
B. Name
C. Range
D. Domain
Answers
Answer:
1. D. Domain
2. C. Range
Step-by-step explanation:
17-6r=25-3r answer it please
Answers
Answer: r = - 8/3
Step-by-step explanation: im pretty sure thats the write answer
u +7 at u=9
Help!!!!
Answers
Answer:
u = 0
Step-by-step explanation:
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fjdg
ggf
6. Rachel's garden is square in shape. The length of one side of her garden is 52 feet. What is the area of her garden in square feet? Express your answer using exponents.
Answers
Answer:
52^ 2 because this is equal to the area which is 2704 sq ft. So 52 to the second power is your answer.
Step-by-step explanation:
Determine each segment length in right triangle ABC
B
45°
I
D
14
7√3
7
45°
A
14
14√3
14√2
Answers
The length of AB and CB is 7√2.
Using Trigonometry
cos 45 = B/ H
cos 45 = AD / AB
1/√2 = 7 / H
H = 7√2
Then, CB = AB = 7√2
Now, using Pythagoras theorem in ΔABC
AC² = AB² + CB²
14² = (7√2)² + CB²
CB² = 196 - 98
CB = 7√2
Thus, the length of AB and CB is 7√2.
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You measure 48 backpacks' weights, and find they have a mean weight of 70 ounces. Assume the population standard deviation is 6.4 ounces. Based on this, construct a 99% confidence interval for the true population mean backpack weight.
Give your answers as decimals, to two places
Answers
The 99% confidence interval for the true population mean backpack weight is approximately (68.15, 71.85) ounces, rounded to two decimal places.
To construct a 99% confidence interval for the true population mean backpack weight, we can use the formula:Confidence Interval = Sample Mean ± (Critical Value * Standard Deviation / √Sample Size).
Since the population standard deviation is known, we can use the z-distribution and find the critical value corresponding to a 99% confidence level. The critical value for a 99% confidence level is approximately 2.576.
Given that the sample mean weight is 70 ounces, the population standard deviation is 6.4 ounces, and the sample size is 48, we can calculate the confidence interval:
Confidence Interval = 70 ± (2.576 * 6.4 / √48).
Simplifying the expression, we get:
Confidence Interval ≈ 70 ± 1.855.
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