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4 years ago

Which should I choose

Mathematics

1 answer:

Luden [163]4 years ago

3 0

Answer:

$u = \dfrac{7-\frac{1}{2}at^2}{t}$

Step-by-step explanation:

$7 = \frac{1}{2}at^2+ut \\\\ ut = 7-\frac{1}{2}at^2 \\ \\ u = \dfrac{7-\frac{1}{2}at^2}{t}$

You might be interested in

Six - two times twelve plus five

fomenos

Answer:

Ok, so the equation would be 6-2*12+5. The answer to that is -13.

Step-by-Step Explanation:

You would use PEMDAS. First, you multiply 2 and 12 and that's 24. Now your equation is 6-24+5. Then you subtract 6 and 24 and that's -18. Now your equation is -18+5, and the answer to that equation is -13. I hope this helps you!!

6 0

3 years ago

5x+20y=4 x=-4y+1 Solve for x/y

Andrews [41]

Hi there!

Looks like a lot of work is going on here.

Let's start by solving this equation for the x.

$5x + 20y = 4$

Step 1) Add -20y to both sides.

$5x + 20y + - 20y = 4 - 20y 5x = -20y + 4$

Step 2) Divide both sides by 5.

$\frac{5x}{5} = \frac{-20y + 4}{5}$

$x = -4y + \frac{4}{5}$

Final Answer:

$x = -4y + \frac{4}{5}$

Now, let's solve for y.

Step 1) Add -5x to both sides.

$5x + 20y + - 5x = 4 + - 5x 20y = -5x + 4$

Step 2) Divide both sides by 20.

$\frac{20y}{20} = \frac{-5x + 4}{20}$

$y = \frac{-1}{4} x + \frac{1}{5}$

Final Answer:

$y = \frac{-1}{4} x + \frac{1}{5}$

Hope this helps! :D

Hint - When you have two variables in an equation, and you want to solve for one, the other will end up in your answer. :)

6 0

4 years ago

Please help 2x^2 = y^3 x=2, y=?

andriy [413]

y is also 2.

2x^2 = 8

2^3 = 8

5 0

4 years ago

Read 2 more answers

The image shows parallel lines cut by a transversal. The expressions represent unknown angle measurements. What is the value of

Triss [41]

Answer) C. 77
This picture shows how I got to the answer. You must set up the two expressions to equal each other and then solve for X

7 0

4 years ago

I’m not really good at answering these with letters in it so would the answer be H to the power of six

r-ruslan [8.4K]

The answer is h to the power of 7 because you add the exponents

5 0

4 years ago

Which should I choose​

Which should I choose