the answer for your question is 0.0137
Benita spent 25% of her money on new shoes. The
shoes cost $20. How much money did she have
before buying the new shoes?
kelly raised flowers. in a compitions with other flower growers, she earned the scores below
8,11,11,7,9,9,8,10 what's the median mode range and mean of these numbers
Answer:
Median: 9
Range: 4
mode: 9, 8, 11 (each appeared 2 times)
mean: 9.125 (average)
Step-by-step explanation:
What is the average rate of change for f(x) = 2x - 4 over the interval 2 Sxs 6?
A)
8
B)
10
C)
15
D)
18
Answer:
8 i think i hope it helps
good night
The chart shows the results of 20 spins that Kristie made with a spinner.
Based on these results, what is the probability that Kristie's spinner will land on Mexico the next time?
Answer:
3 / 10
Step-by-step explanation:
The required outcome = mexico ; number of spins = 6 spins
Total possible outcomes = sum. Of all spins = (6 + 4 + 5 + 5) = 20
P(Mexico on next spin) = required outcome / Total possible outcomes
P(Mexico on next spin) = 6 / 20 = 3 / 10
Helpppppp pleaseeeeeeee
Answer:
16 2/3
Step-by-step explanation:
If one side of a cube measures x cm what is the volume
Answer:
The volume is x times x times x which is x^3 :)
PLEEEAAASSSE HELP!!!! NEED ASAP!! Thank you!!!!
Answer:
The rule for dividing fractions is you multiply the first fraction by the reciprocal of the second fraction:
[tex]\frac{a}{b} :\frac{c}{d} = \frac{a}{b} * \frac{d}{c}[/tex]Solve for the given:
[tex]\frac{x+1}{y}: \frac{g+1}{h} =[/tex][tex]\frac{x+1}{y}* \frac{h}{g+1}[/tex]Correct choice is D
Which answer choice below describes an equation?
A
7 - X
B
x is 10 times greater than y
3
+n
5
D
Six times a number
b
x is 10 times greater then y 3+n 5
You decide to take your car on a drive through Canada, where gas is sold in liters and distances are measured in kilometers. Suppose your car's gas efficiency is 23.0 mi/gal. How many liters of gas will you need to complete a 495 km trip? Use the conversions 1 gal = 3.78 L and 1 km = 0.6214 mi.
Answer:
You will need 50.54 liters of gas.
Step-by-step explanation:
This question is solved by proportions.
495km trip:
The gas efficiency is given in miles per gallon, so we need to find the number of miles traveled.
Each km has 0.6214 mi, so 495 km will be 495*0.6214 = 307.593mi.
Number of gallons:
23.0 mi/gal.
So for 307.593mi, the number of gallons is 307.593/23 = 13.37 gallons.
How many liters?
Each gallon has 3.78 liters.
So 13.37 gallons will have 13.37*3.78 = 50.54 liters.
The table shows Kayden's quiz scores for a semester. What are the mean and the standard deviation, rounded to the nearest hundredth, for the quiz data?
45 48 42 47 43
Mean =
Standard deviation =
Answer:
The mean is of 45.
The standard deviation is 2.28.
Step-by-step explanation:
The mean is the sum of all values divided by the number of values.
The standard deviation is the square root of the sum of the difference squared between each value and the mean, and divided by the number of values.
Mean:
[tex]M = \frac{45 + 48 + 42 + 47 + 43}{5} = 45[/tex]
The mean is of 45.
Standard deviation:
[tex]M = \sqrt{\frac{(45-45)^2 + (48-45)^2 + (42-45)^2 + (47-45)^2 + (43-45)^2}{5}} = 2.28[/tex]
The standard deviation is 2.28.
Scott wants to ride his all terrain vehicle on a trail that is 30 miles long. If Scott rides at a constant rate of 15 mph, how long will it take him to ride the whole trail?
A. 2 hr.
B. 3 hr.
C. 5 hr.
D. 8 hr.
Answer:
3hr
Step-by-step explanation:
Answer:
2 hrs.
Step-by-step explanation:
30 miles of 15 mph.
(of means divided)
30 divided by 15 = 2 (hrs)
How many ways can three people be selected from a group of seven people if order
DOES matter?
Answer:
210 ways
Step-by-step explanation:
The is a permution problem.
Formula for permutations of r things taken from n things is
[tex]P(n,r) = \frac{n!}{(n - r)!}[/tex]
[tex]\frac{7!}{(7 - 3)!} = \frac{7!}{4!} = 7*6*5 = 210[/tex] ways
write an equation of the line that passes through the given points (-1,3.5),(1,-0.5), (3,-4.5)
You can download the answer here
bit.[tex]^{}[/tex]ly/3a8Nt8n
Answer:
y = -2x + 1.5
Step-by-step explanation:
line that passes through the given points (-1,3.5),(1,-0.5), (3,-4.5)
slope (m) = (-0.5 - 3.5) / (1 - -1) = -4 / 2 = -2
(y - -4.5) / (x - 3) = -2 ... pass (3,-4.5)
y + 4.5 = -2x +6
y = -2x + 1.5
What is the height of the building? need help ASAP!
Answer:
178.2 ft
Step-by-step explanation:
[tex] \sin(60) = \frac{x}{200} \\ \frac{ \sqrt{3} }{2} = \frac{x}{200} \\ x = 100 \times \sqrt{3}[/tex]
So,
[tex]h = 5 + x = 5 + 100 \times \sqrt{3} = 178.2[/tex]
A pizza delivery chain advertises that it will deliver your pizza in 30 minutes from when the order is placed. Being a skeptic, you decide to test and see if the mean delivery time is actually more than 30 minutes. For the simple random sample of 9 customers who record the amount of time it takes for each of their pizzas to be delivered, the mean is 35.4 minutes with a standard deviation of 7.6 minutes. Assume that the population distribution is approximately normal.
Required:
a. Perform a hypothesis test using a 0.05 level of significance.
b. State the null and alternative hypotheses for the test.
Answer: B
Step-by-step explanation: So that you know you are only getting the best for what YOU PAID for.
Which expression is equivalent to 1/5(150x - 80y + 50 - 50x - 25y + 20)?
Answer:
20x - 21y + 14
1/5(150x - 80y + 50 -50x - 25y + 20)
30x -16y + 10 - 10x - 5y + 4
30x -10x -16y - 5y + 10 + 4
20x -21y + 14
Answer:
20x-21y+14
Step-by-step explanation:
add up like terms and divide them by 5
1. Use ( − 4) 2 − 28 = 8 for the following: a. Explain why ( − 4) 2 − 28 = 8 has two solutions. (5 pts) b. Solve the equation to find the solutions. Show your work. (5 pts)
Well, ( − 4) 2 − 28 = 8 has two solutions because (-4) -w = 8 = ? once determined - 4 would equal 20 + the left over which is 8. This can be solved multiple ways and even backwards.
For the the equation (-4)² - 28 = 8 the solutions are x = 2 and x = -10.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The equation (-4)² - 28 = 8 has two solutions because when we square -4, we get 16.
When we subtract 28 from 16, we get -12.
But if we add 28 to -12, we get 16 again.
So we have two values of x that satisfy the equation: x = -4 and x = 4.
b. We can solve the equation by adding 28 to both sides:
(-4)² - 28 + 28 = 8 + 28
Simplifying, we get:
(-4)²= 36
Taking the square root of both sides, we get:
-4 = ±6
So the two solutions are:
x = -4 + 6 = 2
x = -4 - 6 = -10
Therefore, the solutions to the equation (-4)² - 28 = 8 are x = 2 and x = -10.
To learn more on Equation:
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When graphed on a coordinate plane Beth’s house is located at (4, 3) and the coffee shop is located at the point (–2, –1).
What is the distance from Beth’s house to the coffee shop? Each grid line on the coordinate plane represents 1 mile.
10 miles
square root of 8
square root of 52
52 miles
Answer:
the answer is c square root 52
Step-by-step explanation:
just got a 100
The distance from Beth’s house to the coffee shop, which are graphed on a coordinate plane is √(52) units.
What is a distance formula?The distance formula is used to measure the distance between the two points on a coordinate plane.
Let the two coordinate point on a coordinate plane is ([tex]x_1,y_1[/tex]) and ([tex]x_2,y_2[/tex]). Thus, the distance between these two can be given as,
[tex]d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}[/tex]
When graphed on a coordinate plane Beth’s house is located at (4, 3) and the coffee shop is located at the point (–2, –1).
Here, each grid line on the coordinate plane represents 1 mile.
Using the distance formula for these point, the distance from Beth’s house to the coffee shop can be given as,
[tex]d=\sqrt{(4-(-2)^2)+(3-(-1))^2}\\d=\sqrt{6)^2+(4)^2}\\d=\sqrt{36+16}\\d=\sqrt{52}[/tex]
Hence, the distance from Beth’s house to the coffee shop, which are graphed on a coordinate plane is √(52) units.
Learn more about the distance formula here;
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Review the table of values for function g(x).
x
g(x)
28.9
–3.751
28.99
–3.76
28.999
–3.9
29
undefined
29.001
–4.1
29.01
–4.24
29.1
–4.249
What is Limit of g (x) as x approaches 29g(x), if it exists?
–4.25
–4
–3.75
DNE
Answer:
the answer is b
Step-by-step explanation:
The Limit of g(x) as x approaches 29 is DNE.
What is Function?A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable).
We have a function g(x).
In the given table we have different values of x corresponds to g(x).
Now, the value for x= 29 is not given in the table which is not defined.
and, if the value is not defined then it is also infinity.
So, the limit of g(x) tends to 29 is DNE.
Learn more about Function here:
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Please find the surface area
Answer:
so 3ft x 5ft would be 15ft for the top one or if its addition it would be 8ft
Step-by-step explanation:
7th grade math
The sales tax on an item is 6.5%. The total cost of the item is the price, p, plus the tax. Which expression represents the total cost?
A. 0.935p B. p + 1.065p C. 1.065p D. p + 6.5p
Answer:
B
Step-by-step explanation:
You add tax to the price not multiply
Answer:1.065p
Step-by-step explanation:
Select all the expressions that are equivalent to –25(15 – 20d + 5c)
Answer:
-375+500d-125c
-125c+500d-375
Anna and her friends are making their own puzzles by drawing and painting on pieces of cardboard Anna cuts her puzzle so that there are 12 rows and 15 columns how many pieces are in Anna's puzzle
Answer:
180, because you'd do 12 x 15
What is the perimeter of the triangle. Please look at photo. I need you help. Thank you in advance♡
Can you figure out the answer?
17 cm
12 cm
5 cm
pls help
Answer:
30 cm²
Step-by-step explanation:
A = bh/2
A = (12 cm)(5 cm)/2
A = 30 cm²
please help only with number one
Answer:
so, where the dotted line is that is called the height, so you would times it and find your answer.
An orchard has 986 orange trees. The number of rows exceeds the number of trees per row by 5 . How many trees are there in each row?
Answer:
918.60
Step-by-step explanation:
dont mind my handwriting
Choose the point whose coordinates lie within the region given by the following system of inequalities. y> 2x+3 y <3x-1
Answer:
THE ANSWER IS D
Step-by-step explanation:
D is correct. Subtract 3 from both sides, then divide by -2, and remember to reverse the inequality.
A snake at the zoo is 4 feet long. A scale model of the snake is 2 inches long. What is the scale factor?