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zysi [14]
3 years ago
14

F(x)= x/5 Given the function f above, what is the value of f(100)?

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
8 0

Answer:

20

Step-by-step explanation:

f(x)= x/5

To solve for f(100), we substitute 100 for x everywhere in the equation:

f(100) = (100)/5

f(100) = 20

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A random sample of 146 recent donations at a certain blood bank reveals that 81 were type A blood. Does this suggest that the ac
Tju [1.3M]

Answer:

We reject H₀  the actual percentage of type A donations differs from 40%

Step-by-step explanation:

Sample information:

sample size   n = 146

Type A   x₁  =  81   and   p₁  = 81 / 146     p₁  =  0,5547

then  q₁   =  1 - p₁    q₁  =  1  -  0,5547    q₁  =  0,4453

We choose as significance level  α  = 5%  α = 0,05   α /2  = 0,025

from z-table we find   z (c) = 1,96

National % of the population  ( μ  = 40 %  μ = 0,4 )

Test hypothesis

Null hypothesis                           H₀           p₁  =  μ

Alternative Hypothesis              Hₐ           p₁   ≠ μ

The Alternative hypothesis indicates that the test is a two-tail test

z(s) =  ( p₁  -   μ )/ √ p₁*q₁ / n

z(s) =  ( 0,5547  -  0,40 )/ √ 0,5547*0,4453 / 146

z(s) =  0,1547 / 0,041

z(s) = 3,77

Comparing  z(s)  and z(c)

z(s) > z(c)  

z(s) is in the rejection region. We reject H₀. Sample does not give evidence to support that the actual percentage of type A donations is equal to the national population

6 0
2 years ago
A planting bed contains 0.75 tons of soil. A landscaper will apply fertilizer to the bed. The directions say to apply 1 ounce of
Lelechka [254]

Question:

A planting bed contains 0.75 tons of soil. A landscaper will apply fertilizer to the bed. The directions say to apply 1 ounce of fertilizer for every 100 pounds of soil.

How many ounces of fertilizer should the landscaper apply?

Answer:

15 ounces

4 0
3 years ago
Help me please no one is answering i need help on math :(
Pani-rosa [81]

Answer:

3         3

6         9

9        15

12        21

Step-by-step explanation:

For the time add 3 each time

For the distance add 6 each time

3 0
3 years ago
Read 2 more answers
What is 4/5 as a percent<br><br> What is 7/8 as a percent
Gwar [14]

Answer: 4/5=80%

7/8= 87.5%

Step-by-step explanation: 4 divided by 5 is 0.8, meaning the percentage is 80%

7 divided by 8 is 0.875, meaning the percentage is 87.5

5 0
2 years ago
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What are the coordinates of M' after triangle MNO is reflected over the y-axis, and rotated 90 degrees clockwise with
exis [7]
(0,-6) because it is reflected and rotated
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3 years ago
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