9514 1404 393
Answer:
0
Step-by-step explanation:
The two expressions for her salary can be equated:
2h +4 = 4 +4h
0 = 2h . . . . . . . . subtract 2h+4 from both sides
h = 0 . . . the husband's salary is zero dollars per month
Answer:
$2000
Step-by-step explanation:
16x < 20
What can x be?
Answer:
x < 5/4
Step-by-step explanation:
divide by 16 on both sides
x < 20/16 = 5/4
Find the area of the square.
A =
m4
2
In circle P, BC=24ft. What is the length of arc AC?
Does anyone have the answer key to this? Need it ASAP!
The Distance between point A and Point B is √10 units.
What is Distance?Distance is a numerical measurement of how far apart objects or points are. In Physics or everyday usage, distance may refer to a physical length or an estimation based on other criteria.
Here, Coordinates of A is (1, 8) and B is (4, 9).
Distance formula = √(x₂-x₁)² + (y₂-y₁)²
= √(4 - 1)² + (9 - 8)²
= √9 +1
AB = √10
Thus, the Distance between point A and Point B is √10 units.
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someone please help me! show work if you can please!
Answer:
a. [tex]12\sqrt{3}[/tex]
b. [tex]144\sqrt{3}[/tex]
c. [tex]24+24\sqrt{3}[/tex]
Step-by-step explanation:
This rectangle is made up of two 30-60-90 right triangles, which have special properties that are worth memorizing for the future. Please see the attached picture.
Using this information, we can deduce that the top and bottom sides are equal to [tex]12\sqrt{3}[/tex].
From the properties of a rectangle we know that the right side is 12.
The diagonal is equal to [tex]12*2=24[/tex].
We can find the area by doing [tex]{12*12\sqrt{3}=144\sqrt{3}[/tex],
And the perimeter is equal to [tex]12+12+12\sqrt{3}+12\sqrt{3} =24+24\sqrt{3}[/tex]
What is the value of y=8−3x when x=5?
When x=5, y=
Answer:
-7 will be the answer.
Step-by-step explanation:
By Putting the value of x, we get:
y=8-3x
y=8-3(5)
y=8-15
y= -7
A random sample of elementary school children in New York state is to be selected to estimate the proportion p who have received a medical examination during the past year. An interval estimate of the proportion p with a margin of error of 0.06 0.06 and 99% 99 % confidence is required.
Answer:
The minimum sample size required is 461.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
99% confidence level
So [tex]\alpha = 0.01[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.01}{2} = 0.995[/tex], so [tex]Z = 2.575[/tex].
An interval estimate of the proportion p with a margin of error of 0.06. What is the minimum sample size required?
The minimum sample size required is n, which is found when M = 0.06.
We don't have an estimate for the true proportion, which means that we use [tex]\pi = 0.5[/tex]. So
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.06 = 2.575\sqrt{\frac{0.5*0.5}{n}}[/tex]
[tex]0.06\sqrt{n} = 2.575*0.5[/tex]
[tex]\sqrt{n} = \frac{2.575*0.5}{0.06}[/tex]
[tex](\sqrt{n})^2 = (\frac{2.575*0.5}{0.06})^2[/tex]
[tex]n = 460.5[/tex]
Rounding up
The minimum sample size required is 461.
Karyn has 11/8 pounds of chili to put into three bowls. The amount of chili in each bowl does not have to be the same. How much chili could Karyn put into each bowl? Solve this
Answer:
bowl a: 11/8 pounds of chili
bowl b: 11/24 pounds of chili
bowl c: 33/48
A university wants to investigate how much its students spend on textbooks each semester. Since all
students must purchase their materials through the campus bookstore, a random sample of 15 student
accounts is selected, and the averagą dollar amount spent on textbooks is calculated.
Which of these circumstances would make it inappropriate to use this sample to calculate a 95%
confidence interval for the mean amount spent on books by students at this university?
The standard deviation of the textbook costs is below $30.
The standard deviation of the textbook costs is larger than $100.
A stem-and-leaf plot of the textbook costs shows a roughly symmetric distribution
A histogram of the textbook costs is calculated and shows a slight skew to the right.
A boxplot of the textbook costs shows two students whose amounts would qualify as outliers,
Answer:
Step-by-step explanation:
if you answer this question get 100 point please answer
please answer
please answer
please answer
please answer
please answer
please answer
Answer:
READ
Step-by-step explanation:
A 1
B 3
3 4
2 2
The scatter plot below shows the change in the demand for a pair of jeans at a store as the price changes. The sales manager uses y= -1.75x+92.13 as a line of best fit.
What is the residual value when the price of jeans is $28.00?
A)−9.37
B)−1.13
C)1.13
D)9.37
Answer:
1.13
Step-by-step explanation:
The residual value when the price of jeans is $28.00 is -15.13
How to determine the residual?The equation of the line of best fit is:
y= -1.75x+92.13
When the price of jeans is $28.00, we have:
y= -1.75*28+92.13
Evaluate
y= 43.13
The residual value is then calculated as:
Residual = Actual - Observed
This gives
Residual = 28.00 - 43.13
Evaluate the difference
Residual = -15.13
Hence, the residual value when the price of jeans is $28.00 is -15.13
Read more about residual at:
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lang atino
Determine whether a triangle can be formed with the
5. 10 ft, 3 ft, 15 ft
1/2 ÷ 3 = 4 2/3 ÷ x. Solve the proportion
Answer:
x=28
Step-by-step explanation:
i hope my answer is correct. it's been a while since i've done this.
please help me thanks
Answer:
D
Step-by-step explanation:
Answer:
each person gets 2 1/2
Step-by-step explanation:
You divide and get 2 1/2
the answer is D
What is the distance between (5, 5) (5, -2)
Answer:
7 units
Step-by-step explanation:
To find the distance between a pair of points, use the distance formula, [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]. Substitute the x and y values of (5,5) and (5, -2) into the formula and simplify:
[tex]d= \sqrt{(5-5)^2+(5+2)^2} \\d = \sqrt{(0)^2+(7)^2} \\d = \sqrt{0+49} \\d = \sqrt{49}\\d=7[/tex]
So, the answer is 7 units.
Stella was out at a restaurant for dinner when the bill came. Her dinner came to $10. She wanted to leave a 25% tip. How much was her meal plus the tip, before tax, in dollars and cents?
Answer:
12.50
Step-by-step explanation:
NEED HELP ASAP WILL GIVE BRAINLIEST REAL ANSWERS ONLY PLZ
Answer:
0.3
Step-by-step explanation:
in theory the chance to get heads is 0.5 however only two of the coin flips resulted in heads so the experimental probability is 0.2. the difference between these is 0.3.
Answer:
the correct answer is D because you have got 10flips with 2head the probability for it 2/10 or 0.02 and you know we don't always get the same result as always, and you wanna add some for the reason and you got 0.03 ( ◜‿◝ )♡
Convert 80 liters into gallons. Round your answer to the nearest tenth.
Answer:
21.13 US gallons
Step-by-step explanation:
. _ .
Answer:
21.1338 rounded to the nearest tenth is 21.10
Step-by-step explanation:
Find the range of the following data set. 451, 376, 380, 470, 546, 481
Answer:
170.
Step-by-step explanation:
jus did it
can i get brainliestttt
Estimate 2.21x5.1 i guess need help please I don’t want to fell this class
Answer:
10
Step-by-step explanation:
Im guessing since you have to estimate it then u have to round them up. So if you move both of their points by 2 spaces (divide both by 100) They will be 221x510.
Round them up to 200x500.
That woule be 100 000. Then at the end just dont forget to divide by 10000.
Hope this was helpful
Write an equation for a circle that follows the same pattern as the other circles. Explain how your equation follows the same pattern you identified.
9514 1404 393
Answer:
(x -4)² +(y +3)³ = 4
Step-by-step explanation:
Each circle is centered on (h, k) = (4, -3). Each circle has a radius 1 unit smaller than the circle just outside of it. The innermost circle shown has a radius of 3, so the next in the pattern of smaller circles will have a radius of 2. The equation for a circle centered at (h, k) with radius r is ...
(x -h)² +(y -k)² = r²
The next circle in the pattern is centered at (4, -3) and has radius 2, so its equation is ...
(x -4)² +(y +3)² = 4
which of the following describes the data set? 6,7,11,14,20,30,35
Answer:
D
The numbers are already in order so you don't need to do anything
Answer:
its b for me but d for yall
Step-by-step explanation:
all you do is count up hope this helps can u mark me brainlest
PLEASE HELP
Use the equation y=3(12)x to determine the value of y if x=−2.
A. 3
B. 4/9
C. 3/4
D. 12
PLEASE HELP ME I WILL HIVE BRAINLIST TO THE CORRECT ANSWER !!!!!!!!!!!
Answer:
I'm not 100 percent sure but I think it's the first answer choice because at 40000 3 years have passed. Hope this helps :)
Answer:
The machinery ages three years for every $10,000 loss in value.
Step-by-step explanation:
We can see from the graph that each year, the machinery loses a value of $5,000 (Goes from $50,000 to $45,000 after year one, from $45,000 to $40,000 after year two etc). So we can discount the last two answers.
If it loses $5,000 each year, it loses $15,00 after ageing three years, and $25,00 after five years. Though neither of the first two answers correspond to this, the first answer is closest.
Kristy is going to a college where tuition is $8,000 per year. She has a scholarship that pays 80% of tuition. Her aunt is giving her $1,000 per year. How much will Kristy need to borrow to pay tuition each year?
which of the following piecewise graphs is not a function
Answer:
The first graph is not a function because it has two values at x = 3. Definition of a function is that it is a relation that assigns exactly one value for each value on its domain
The ratio of the length to breadth
of a room is 7:5. Find the length
of the room if the breadth is
10m
Answer:
14m
Explanation:
10 ÷ 5 = 2
2 × 7 = 14
Will mark brainliest. Question is below.
A trash can is in the shape of a cylinder. It has a radius of 2 feet and a height of 5 feet. What is the volume of the trash can? Round to the nearest tenth. Use 3.14 for π or pi.
Answer:
62.8 cubic feet
Step-by-step explanation:
V = πr^2h
r is radius
h is height
Radius = 2ft
Height = 5ft
V = (3.14)(2)^2(5)
V = 62.8 cubic feet
The difference of two numbers is 3. Their sum is 13. Find the numbers.
Answer:
the correct numbers are 8 and 5
Show work please and thanks