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denis23 [38]
3 years ago
15

In a multiple-choice question with four alternatives, if the null hypothesis is correct, the probability of a person choosing th

e correct answer is approximately
Mathematics
1 answer:
Shalnov [3]3 years ago
8 0

25%,

This is because there are four choices to choose from, meaning each choice has a 25% chance of being chosen at random.

Assuming there is only one correct answer, that means that there is a 25% chance of it being chosen at random.

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Mixture Temperature (°C)
Natasha_Volkova [10]

Answer:

c

Step-by-step explanation:

sheeesh 3 easy

4 0
3 years ago
Pls help will mark as brainliest
Annette [7]

Answer:

The last one

Step-by-step explanation:

when you are dividing an equation with exponents, you subtract the exponents from each other.

For example, in your problem you have d^4 and d^2 (notice that they have the same base)  you subtract the exponents to get d^2

** even if the bases are numbers, you DONT touch the base, just the exponents ( ex.: 5^4 ÷ 5^3  = 5^1)

Do this w/ the rest of the exponents.

d^4 ÷ d^2 =  d^2

e^3÷e^2= e

f^5÷f= f^4

** although f looks like it doesn't have an exponent, it has an invisible one

And w/ the power of deduction, you should get -2/3 d^2ef^4

3 0
3 years ago
• The number of apps on Sarah's phone can be represented
grigory [225]
X = 23
x + 4x = 115
5x = 115
115/5 = x
23 = x
hope it helps!
pls mark brainliest
8 0
2 years ago
9–5(x+4)=3(2–x) help!!!!!1
netineya [11]

Answer:

-17/2 =x

Step-by-step explanation:

9–5(x+4)=3(2–x)

Distribute

9 - 5x - 20 = 6 -3x

Combine like terms

-5x-11 = 6-3x

Add 5x to each side

-5x-11 +5x = 6-3x+5x

-11 = 6+2x

Subtract 6 from each side

-11-6 = 6+2x-6

-17 = 2x

Divide by 2

-17/2 = 2x/2

-17/2 =x

3 0
4 years ago
Read 2 more answers
Set 4x equal to x+30 and solve.
prisoha [69]

Answer:

x = 10

Step-by-step explanation:

1) Subtract x from both sides.

4x − x = 30

2) Simplify 4−x to 3x

3x = 30

3) Divide both sides by 3

x = \frac{30}{3}

4) Simplify \frac{30}{3} to 10

x = 10

7 0
3 years ago
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