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3 years ago

14

Plz help with 6,7,8 and 9

1 answer:

Reil [10]3 years ago

3 0

Grayson's mistake was that he multiplied 4 and 3 and then used the exponent he had to square 3 and then multiply it by 4.

Emily's mistake was that she added 2 to 36 instead of multiplying it by -2

Pat's mistake was that he forget to make y into -2 instead of 2

The right way to do this is 4(3^2)+2(-2)
(3^2)=9 9×4=36 2(-2)=-4 -4+9=5

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Convert 52°C to degrees Fahrenheit.

Nady [450]

52°C is equal to 125.6 degrees Fahrenheit.

Given that 52°C it should be converted into degrees of Fahrenheit.

The celcius is represented by the letter C

And the degree Fahrenheit is represented by F

The formulas for the conversion are given by $C=\frac{5}{9} (F-32)$

and $F=\frac{9}{5} C+32$

Here the given is 52°C and we convert this to Fahrenheit by using the formula $F=\frac{9}{5} C+32$

We have a C value is 52

By substituting the C value in the formula we get the F value

$F=\frac{9}{5} C+32\\F=\frac{9}{5} (52+32)\\F=\frac{9}{5} (84)\\F=125.6$

Hence 52°C to degrees Fahrenheit is 125.6

Learn more about the conversion of C to Fahrenheit and to Fahrenheit to c here

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8 0

9 months ago

Joe spends S3 per square foot on carpet for a square room. If he spends

Serjik [45]

Answer:

12 square feet

Step-by-step explanation:

You can find out how many square feet he bought by dividing 432 by 3.

432/3=144

Now, you need to find the square root of that to find the length of just one side of the room.

$\sqrt{144}=12$

4 0

3 years ago

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Solve the equation. You will not get credit if you do not show your work or 4 points

Feliz [49]

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5 0

3 years ago

How can csc^2-cot^2 = 1?

Softa [21]

ANSWER

By simplifying the left hand side using the Pythagorean Identity.

EXPLANATION

The given identity is

$\csc^{2} (x) - \cot^{2} (x) = 1$

Take the left hand side and simplify to get the right hand side.

$\csc^{2} (x) - \cot^{2} (x) = \frac{1}{\sin^{2} (x)} - \frac{ \cos^{2} (x)}{\sin^{2} (x)}$

Collect LCM for the denominators.

$\csc^{2} (x) - \cot^{2} (x) = \frac{1 - \cos^{2} (x)}{\sin^{2} (x)}$

Recall the Pythagorean Identity.

$\cos^{2} (x) + \sin^{2} (x) = 1$

This implies that:

$1 - \cos^{2} (x) = \sin^{2} (x)$

We substitute this to get,

$\csc^{2} (x) - \cot^{2} (x) = \frac{\sin^{2} (x)}{\sin^{2} (x)}$

$\csc^{2} (x) - \cot^{2} (x) = 1$

6 0

2 years ago

What is 4,000,275,000 in word form?

castortr0y [4]

Answer:

Four billion, two-hundred seventy five thousand.

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3 years ago

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