Answer:
C, 85°
Step-by-step explanation:
180° = total angles for a triangle
First, add the known angles.
67 + 28 = 95
Then, subtract
180 - 95 = 85
To check your answer, add all the angles up to see if it equals 180°
67 + 28 + 85 = 180
Have a great day!
A company is testing a new protein shake which they claim works better than their existing brand in improving an athlete's performance. The company selected 60 athletes from a training camp database, and divided them into three groups. The ages for the groups were 16 to 20 years, 21 to 25 years, and 26 to 30 years. In each group, half of the subjects were asked to use the new protein shake for a month, and the other half were asked to use the company's existing brand for a month. The subjects were not informed about which protein shake they would be using. Which statements about this study are true? The study uses blocking to reduce variability from known factors. The study does not use a control group. The study uses random sampling. The study uses blocking on the basis of gender. The study uses a repeated measure design to reduce variability from unknown factors.
Answer:
The study uses random sampling
The study uses blocking to reduce variability from known factors
Step-by-step explanation:
Correct on Plato/Edmentum
Study uses blocking to reduce variability from know factor
and The study uses random sampling are the true statements
What is random sampling?Random sampling is a part of the sampling technique in which each sample has an equal probability of being chosen
Here study uses blocking to reduce variability from know factor
The study uses random sampling
Hence, study uses blocking to reduce variability from know factor
and The study uses random sampling are the true statements
Learn more about Random sampling here
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The temperature at dawn is 9 degrees Celsius away from 0. Select ALL the temperatures that are possible.
Answer:
- 9 °C or 9 °C
The number line shows that - 9 and 9 and both 9 away from 0.
1a.) Brian borrowed 4 non-fiction books from the library. This was 25% of the
books he checked out. How many books did Brian check out? *
Answer:
Total number of books borrowed= 16
Step-by-step explanation:
Giving the following information:
Number of non-fictions books= 4
Percentage of books borrowed= 25% = 0.25
To calculate the total number of books borrowed, we need to use the following formula:
Total number of books borrowed= 4 / 0.25
Total number of books borrowed= 16
With Company A, you can take a 2.25 hour helicopter ride for $ 270.
With Company B, you can take a 90-minute helicopter ride for $ 180.
Which of the two helicopter companies gives you the best ride for your money?
Answer:
B
Step-by-step explanation:
HELP
Frank is making lemonade. He uses 12 lemons he brought from home and 10 lemons he asked Heidi to bring. He bought 5 bags
of lemons from the grocery store. Each bag holds the same number of lemons and he uses all of these. He uses 72 lemons
altogether. Which equation models the number of lemons, there are in each bag?
A 12 + 10 + 5 = 72.c
B 12x + 10x + 5 = 72x
C 12 + 10 + 5x = 72
D 12x + 10x + 5x = 72
Write an explicit function in terms of n that describes the following sequence:
−2, 4, −8, 16, −32, 64
Answer:
aₙ = -2(2)^(n-1)
Step-by-step explanation:
please help. solve for x. (i’ll give brainles if you help with all!
Answer:
Step-by-step explanation:
If I give you this helpful way to remember , can you solve these?
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
or no?
I just need help in this last question plsssss
Answer:
B) 0.8
Step-by-step explanation:
If events are said to be independent, then just multiply the probability of the first event by the second if they are supposed to be happening together.
P (A) * P (B) = 0.8 x 1 = 0.8
I need help. NO links or I will report.
Answer:
30
Step-by-step explanation:
Well I think that this is a line, and so the angle is 180. The other line is 90 which is half of 180. It leaves 90 left. then all you have to do is solve the equation 3x=90 (x+2x=3, 9-9=0) 90 divided by 3 is 30.
Help, I don’t know how to do this. Can someone please give me the answer
Answer:
x=45°
Hope this helps
...............................
Can someone help I don’t understand
Answer:
8 hr
Step-by-step explanation:
8hr
hope this helps you!
Solve for r.
5(r - 10) = -51
Enter the answer in the box.
Answer:
r = -1/5
Step-by-step explanation:
5(r - 10) = -51
Distribute
5r - 50 = -51
Add 50 to each side
5r-50+50 = -51+50
5r = -1
Divide each side by 5
5r/5 = -1/5
r = -1/5
True or false? To begin an indirect proof, you assume the inverse of what you intend to prove is true
Answer:
True
Step-by-step explanation:
Help ASAP on a timer ⏱
Answer:
B: 395
Step-by-step explanation:
Answer:400
Step-by-step explanation:
The graph shows the function y = 3x - 1. What are the coordinates of the intercepts?
Answer:
Answer down bellow!
Step-by-step explanation:
y-intercept:(0,-1)
Also, the slope is 3!
Find the value of each variable 17/ 18
Answer:
A) B.R(-9)?
Step-by-step explanation:
Answer:
17 - 42
18 - 50
Step-by-step explanation:
17)
You know the total measurement of both angles is 180.
So your formula is (2x+54) + x = 180. Now rearrange to get
180 - (2x+54) = x or 180-2x+54 =x
Simply to -2x+126 = x followed by moving x and moving 126 to get
-3x = -126 , now divide both sides by -3
18)
Your complete circle is 360 and you know one angle is 90.
Set your formula to 360=90+(3x)+(x-20)+(2x-10)
Rewrite to 360 = 90+3x+x-20+2x-10 and combine like terms
360 = 90 - 20 - 10 + 3x + x+2x
360 = 60 + 6x
360 - 60 = 6x
300 = 6x
300/6 = x
50 = x
5.
A balloon is released from the top of a building. The graph shows the height of the balloon over time. What does the slope and y-intercept reveal about the situation?
A. The balloon starts at a height of 0 ft and rises at a rate of 10 ft.
B. The balloon starts at a height of 10 ft and rises at a rate of 0 ft.
C. The balloon starts at a height of 0 ft and rises at a rate of 100 ft.
Answer:
Step-by-step explanation:
the balloon starts at a height of 0 ft and rises at a rate of 100 ft.
A manufacturer compares its income f(x) to its expenses g(x) for x number of units sold. What does the solution to f(x) = g(x) represent for the manufacturer?
Answer: The number of units sold when the manufactures home income equals the manufactures expenses
Step-by-step explanation:
The solution to f(x) = g(x) represent that manufacturer is on break even.
What is Break-even?Break-even analysis Break even is the point where the income of a business matches the expenses required to run that business. Also in other words it tell us the point at which you will have enough sales to cover all of the costs involved.
What function represent here?Here as it is given that the income f(x) to its expenses g(x) for x number of units sold is equal.
Therefore, its state will be break even.
Learn more about the break even here: https://brainly.com/question/21137380
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f(x) = x2 What is g(x)?
um
g(x)
(2.1)
OB. 9x)-
O A.9)
960-G3*
O c. g(x) = 4x²
O D. 9(x) = /
Step-by-step explanation:
the corect answer for this question is
A)
[tex]when \: \: x = 2 \\ y = \frac{1}{4} {2}^{2} \\ y = 1[/tex]
The diagram shows a circle inside a square 16cm work out the area of the circle
Write the equation of the line that has a slope of 3 and goes through (-2,5)
in point-slope form. *
Answer:
y = 3x + 1
Step-by-step explanation:
substitute the variables in y=mx+b
(5) = 3(-2) + b
5 = -6 + b
add 6 on each side
1 = b
How big is a piece of A4 paper?
Answer:
210 x 297 mm
Hope that this helps!
HElP NEED ANSWER FAST WILL GIVE BRAIN
Answer:
c
Step-by-step explanation:
5x5x5x5x5x5x5x5x10x10x00.0001
3906.25
Use a calculator
If the sun is 58° above the horizon, find the length of the shadow cast by a building 62 ft tall. Round your answer to the nearest tenth.
Answer: 56
Step-by-step explanation:
PLS ILL MARK BRAINLIEST (100 points)
Answer:
For part A:
9x² - 36x + 36 = 0
9(x² - 4x + 4) = 0
9(x-2)(x-2) = 0
Radicand = Discriminant = 36² - 4(9)(36) = 0
there is 1 real zero that repeats itself)
zero is x=2.
Use factoring. Factors of 7 are 1 and 7
2x²-9x+7 = 0
(2x-7)(x-1) = 0
2x-7 = 0 (x-1)=0
2x = 7x=1
x = 7/2
Your solutions are x = 1 and x = 7/2
Step-by-step explanation:
please help will mark brainliest
match each trig function to a ratio. cos (A) =
Answer:
Cos A = x/z
Step-by-step explanation:
You need to memorize the definitions of all the trig functions and then these types of problems become easy! OK?
Cos = adjacent side/hypotenuse
Cos A = x/z
question 9
9. Given ABCD
EFGH, find the length of GH.
A. 8
B. 7
C. 5
D. 10
A video game rental store charges a $20 membership fee plus $2 for each game rented. Click to show whether each statement is true or false. True False The slope of function 2 is greater than the slope of function 1 and less than the slope of function 3 The slope of function 1 is 4 times the slope of function 3. The y-intercept of function 2 is less than the y-intercept of functions 1 and 3. The y-intercept of function 2 is greater than the y-intercept of function 3.
Answer:
the member ship gay
Step-by-step explanation:
m8 m88m8m88m8m88m