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Zolol [24]
3 years ago
10

In which line did the student make the first mistake?

Mathematics
1 answer:
Setler [38]3 years ago
4 0
It’s line 4. She subtracted the final from the initial. The distance formula requires you to subtract the initial from the final. That’s the formula for displacement in x and y.
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Write the quadratic equation whose roots are 2 and -4 and whose leading coefficient is 2
Goryan [66]

Answer:

2x^2+4x-16

Step-by-step explanation:

The quadratic can be written as

f(x) = a(x-z1)(x-z2) where z1 and z2 are the roots

f(x) = a (x-2)(x- -4)

a is the leading coefficient

f(x) = 2(x-2)(x+4)

     = 2(x^2 -2x+4x-8)

     = 2(x^2 +2x-8)

     = 2x^2 +4x-16

5 0
3 years ago
What is the value of this expression <br>5+(5-9)^2+3(16÷8)​
kaheart [24]

Answer:

27/4 or 6 3/4

Step-by-step explanation:

I can't put it in the box because its gonna take to long but it is correct

3 0
2 years ago
Read 2 more answers
Courtney’s soccer team drank
TEA [102]

Answer:

10.25 liters

Step-by-step explanation:

the decimal goes between 10 and 25 because you multiply the .5 separately. hope this helped

4 0
2 years ago
Read 2 more answers
Solve equation for the variable. <br><br> 4e-6e-5=15
julsineya [31]
4e - 6e - 5 = 15

Begin by combining like terms:
4e - 6e = -2e.

The equation is now simplified.
Now, it is time to find the value of the variable.

-2e - 5 = 15

Step 1: Add 5 to both sides.

We now have -2e = 20.

Step 2: Divide both sides by -2 to isolate the variable.

-2e / 2 = e; 20 / -2 = -10.

Therefore, e = -10.
8 0
2 years ago
Read 2 more answers
My nephew, Oliver, got a new Lego set. He has decided to build it with his friend, Josie. It took them 6 hours to build together
Usimov [2.4K]

Answer:

4 hours

Step-by-step explanation:

If it took them together with a total of 6 hours and Oliver is half as fast meaning Jose is faster it will take Jose 4 hours.

A simple equation is

6= 4+2

And the 2 would be Oliver since Oliver is half as fast.

7 0
2 years ago
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