3 years ago

Please help! super urgent!

Mathematics

1 answer:

Sindrei [870]3 years ago

4 0

Answer:

A. square root of 3 times 5

Step-by-step explanation:

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I hurry i need help asap

anzhelika [568]

It is the first chart

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2 years ago

Find the amount of the discount on a $234 item with a discount of 15%

kipiarov [429]

The amount of discount is is 35.1

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2 years ago

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The R-value of insulation is a measure of its ability to resist heat transfer. For fiber-glass insulation, 3½ inches is rated at

Solnce55 [7]

Answer:

$R = \dfrac{16}{5}t + \dfrac{1}{5}$

where R is the R-value and t is the thickness in inches.

Step-by-step explanation:

We are given the following in the question:

The R-value of fiberglass insulation and f its thickness have a linear relation.

Let R be the R-value and t be the thickness. Then, the equation can be written as:

$R = at + b$

where a and b are constants.

When t = 3.5, R = 11

$11 = 3.5a + b$

When t = 6, R = 19

$19 = 6a + b$

Solving the two equation, using the elimination method, we have,

$19-11 = 6a + b-(3.5a + b)\\8 = 2.5a\\\\\Rightarrow a = \dfrac{16}{5}\\\\11 = 6(\dfrac{16}{5}) + b\\\\\Rightarrow b = \dfrac{1}{5}$

Thus, the linear relationship is given by:

$R = \dfrac{16}{5}t + \dfrac{1}{5}$

where R is the R-value and t is the thickness in inches.

8 0

3 years ago

A recipe for brownies calls for 4 eggs and 1 1/2 cups of flour. If the recipe makes 15 brownies, how many cups of flour will be

anzhelika [568]

Answer:

I think it is 6 cups of flour.

Step-by-step explanation:

15 x 4 = 60

1.5 x 4 = 6

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2 years ago

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13 points! Please do not use up an answer if you don't know it! I REALLY need help!

PtichkaEL [24]

1// 3
2// -1
3// -2
4// 2
5// 6
6// 145
7// -28
8// -4544
9// -9
I am pretty sure these are all right I'd just double check them

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2 years ago