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3 years ago

Please help asap :)

Mathematics

1 answer:

Nat2105 [25]3 years ago

6 0

Your answer would be 2x^2=4x

also I have a question I need help with, would you mind?

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If u=0, make t the subject of the following equation: s=ut+1/2at^2 Please look at image.

Sladkaya [172]

Answer:

$t=\sqrt{\dfrac{2s}{a}}$

Step-by-step explanation:

The given equation is :

$s=ut+\dfrac{1}{2}at^2$

Where

s is displacement

u is the initial velocity

a is acceleration

t is time

If u = 0, the above equation become,

$s=\dfrac{1}{2}at^2\\\\t^2=\dfrac{2s}{a}\\\\t=\sqrt{\dfrac{2s}{a}}$

Hence, the value of t is equal to $\sqrt{\dfrac{2s}{a}}$ .

4 0

3 years ago

How many possible outcomes are there when flipping a coin 9 times? its 512 right?

BabaBlast [244]

Yes, I believe so.

Hope this helps

5 0

4 years ago

Read 2 more answers

Help please fast the format is Y-____=_____(x - ____) and i need the actual answer

mojhsa [17]

9514 1404 393

Answer:

y -195 = 15(x -9)
$60

Step-by-step explanation:

The form of the equation you are given is called "point-slope" form. The "slope" in this case is the per-hour fee. The point is (9 h, $195). Point-slope form generally looks like this:

y -k = m(x -h) . . . . . line with slope m through point (h, k)

Here, you have m=15, (h, k) = (9, 195), so the equation looks like ...

y -195 = 15(x -9)

The "one-time fee" is the cost when hours are zero.

y -195 = 15(0 -9)

y = 195 -9(15) = 60 . . . . add 195 to both sides, and evaluate

The one-time fee is $60.

5 0

3 years ago

F E 58>D C 128 B 128

Kisachek [45]

Answer:

What is the question???

Step-by-step explanation:

3 0

3 years ago

Beverly is driving up a hill at an incline of 45 degrees. She will travel 13 miles to reach the top. What is the height of the h

quester [9]

Answer:

The height of the hill is of 9.19 miles.

Step-by-step explanation:

Relations in a right triangle:

The sine of an angle is given by the measure of the opposite side divided by the hypotenuse.

The cosine of an angle is given by the measure of the adjacent side divided by the hypotenuse.

In this question:

Angle of 45º, and drives 13 miles. Due to the inclination, this represents the hypotenuse.

The height is the opposite side. So

$\sin{45} = \frac{h}{13}$

We have that $\sin{45} = \frac{\sqrt{2}}{2} = 0.71$

$\sin{45} = \frac{h}{13}$

$0.71 = \frac{h}{13}$

$h = 13*0.71 = 9.19$

The height of the hill is of 9.19 miles.

3 0

3 years ago