3 years ago

Someone asap

Mathematics

1 answer:

serg [7]3 years ago

5 0

It’s A because I did the test lmafo

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How would you do this problem?

sweet [91]

F(x)=-5t^2+20t+60
Divide everything by -5
f(x)=t^2-4t-12
(t-6)(t+2)
Set it up to zero
t-6=0. t+2=0
t=6. t=-2
Since you can’t have negative seconds, the answer is 6 seconds

3 0

3 years ago

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Write the equation of a line that is perpendicular to the given line and that passes through the given point.

poizon [28]

Answer: y=-3x+29

Step-by-step explanation:

First put in y-intercept form to find the slope

$4x-12y=2\\-12y=-4x+2\\y=\frac{1}{3} x-\frac{1}{6}$

Slope of the 1st equation is 1/3- the slope of the line perpendicular is the opposite reciprocal, so in the case it is -3

Use the point and the new slope to write the new equation in point slope format

$y-y_{1} =m(x-x_{1} )\\y-(-1)=-3(x-10)\\y+1=-3x+30\\y=-3x+29$

8 0

3 years ago

Find the area of the figure. (Sides meet at right angles.)

son4ous [18]

Answer:

40 yd^2

Step-by-step explanation:

Add the square at the bottom to make one large rectangle. Subtract the square not included from that area to get the figure shown (see attachment).

7 0

2 years ago

I need the answer will mark

zvonat [6]

Answer:

z to the 10th power

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

After the party, Jane washed half of the glasses. Alex washed half of the remaining glasses, and then Sasha Alex washed half of

andreyandreev [35.5K]

Answer:

Step-by-step explanation:

Let's take a look.

So we have 3*2*2*2*2=48 glasses

if half used 2 and other half used 1... we have a sum of 2+1=3

so 48/3 = 16

4 0

3 years ago