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4 years ago

7.8x - 17.2 when x= 5

Mathematics

2 answers:

erica [24]4 years ago

8 0

7.8(5)-17.2
39-17.2
= 21.8

faust18 [17]4 years ago

4 0

<span>7.8x - 17.2 when x= 5
</span>
Ans: 21.8

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The alop is 4. Glad this helps.

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can you convert radians to degrees by replacing pi with 180

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Laura finished her history assignment in 1/4 hours. Then she completed her English assignment in 3/5 hours. What was the total a

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3 years ago

We have a study involving 5 different groups that each contain 9 participants (45 total). What two degrees of freedom would we r

vivado [14]

Answer:

Degree of freedoms F(4,40)

Step-by-step explanation:

Given:

There is a study which is involving 5 different groups that each contains 9 participants (totally 45)

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Numerator degree of freedom = k-1

denominator degree of freedom=N-K

Solution:

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denominator degree of freedom=N-K

Where,

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N= total number of observations

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N=45

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Numerator degree of freedom = k-1

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Therefore,

Degree of freedoms, F(4,40)

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3 years ago

sarah used 3/4 pound of blueberries to make 1/2 cup of jam. how many pounds of blueberries would she need to make a cup of jam?

Ksenya-84 [330]

Answer: She needed $1\frac{1}{2}\text{ pounds of blueberries}$ to make a cup of jam .

Step-by-step explanation:

Since we have given that

Sarah used $\frac{3}{4}$ pound of blueberries to make $\frac{1}{2}$ cup of jam.

As we need to find the number of pounds of blueberries she would need to make a cup of jam.

So, we will use "Unitary Method":

$\text{For }\frac{1}{2}\text{ cup of jam},\\\\\text{ she need }\frac{3}{4}\text{ pound of blueberries }\\\\\text{ For 1 cup of jam}.\\\\\text{She need }=\frac{3}{4}\times 2=\frac{3}{2}=1\frac{1}{2}\text{ pounds of blueberries }$

Hence, She needed $1\frac{1}{2}\text{ pounds of blueberries}$ to make a cup of jam .

4 0

3 years ago