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3 years ago

Please help. tap the photo to see the whole problem. thanks.

Mathematics

1 answer:

Bond [772]3 years ago

3 0

He didn’t multiply the equation by 1/2 in the second part so it threw his whole answer off. Hope this helps

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How do you turn a fahrenheit to kelvins??

densk [106]

1.Subtract 32 from the Fahrenheit temperature.
2.Multiply this number by 5.
3.Divide this number by 9.
4.Add 273.15 to this number.

6 0

3 years ago

Pls help me hurry I need help!!

Citrus2011 [14]

C. 9 square roots of 2

To answer this question, it's super important that you understand the ratio of sides for special triangles. This triangle in particular, a 45-45-90 triangle, has a ratio between the legs and hypotenuse of 1:1:

Since we are given the value of the hypotenuse, we know that the value of the two sides multiplied by $\sqrt{2}$ will be 18. Knowing this, we can write out an equation:

u* $\sqrt{2}$ = 18

u = $\frac{18}{\sqrt{2} }$

Multiply both sides by $\sqrt{2}$ in order to get rid of the root in the denominator:

u = $\frac{18*\sqrt{2}}{\sqrt{2} * \sqrt{2}}$

u = $\frac{18*\sqrt{2} }{2}$

u = 9 $\sqrt{2}$

If you'd like me to explain how I got to the answer any further, just ask!

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7 0

3 years ago

8 - 5x3, for x = -1 The 3 after the x is a exponent plz help!!!!

zvonat [6]

Answer:

Step-by-step explanation:

$8-5x^3$ , if x = -1

$=8-5(-1)^3$

$=8+5$

$=13$

6 0

3 years ago

How can you tell that the slope of the line through (2,2) and (-3,5) is negative without calculating

cestrela7 [59]

The y values decrease as the x values increase. If you picture the points in your head, you’ll see that (2,2) is to the right and lower than (-3,5), creating a negative slope.

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2 years ago

Ralph is an electrician. He charges an initial fee of $26, plus $31 per hour. If Ralph earned $119 on a job, how long did the jo

lubasha [3.4K]

3 hours

You can turn this into an equation:

F = 26 + 31t
Where F is the money Ralph earned, and t is the number of hours he worked.

Plugging in the 119 for F, we get
119 = 26 + 31t

93 = 31t

3 = t

5 0

3 years ago

Please help. tap the photo to see the whole problem. thanks. ​

Please help. tap the photo to see the whole problem. thanks.