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Nitella [24]
2 years ago
8

PLEAEEE PLEAEE AHHHHHHH

Mathematics
1 answer:
ikadub [295]2 years ago
7 0

Answer:

116cm^2

Step-by-step explanation:

mark me brainliest!

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The given line passes through the points (-4,-3) and (4,
Harlamova29_29 [7]

Answer:

Step-by-step explanation:

first we gotta find the slope of the first line

(-4,-3),(4,1)

slope = (y2 - y1) / (x2 - x1) = (1- (-3) / (4 - (-4) = (1 + 3) / (4 + 4) = 4/8 = 1/2

so the slope is 1/2.....so we are looking for a line that is perpendicular....perpendicular lines have negative reciprocal slopes...all that means is flip the slope and change the sign....so the slope we need is :

1/2....flip it....2/1.....change the sign....-2.....we need a -2 slope

y - y1 = m(x - x1)

slope = -2

(-4,3)...x1 = -4 and y1 = 3

now sub

y - 3 = -2(x - (-4) =

y - 3 = -2(x + 4) <=====

6 0
3 years ago
The height of the tunnel at the center is 35ft, and the vertical clearance must be 21 ft at a point of 8ft from the center. Find
Zinaida [17]

Answer:

y=-0.215x^2+35

Step by Step:

Let, h=0,  k=35, x=8, y=21

We know that, the general equation of the parabola.

   y-k = a(x-h)^2

\Rightarrow y=a(x-h)^2+k  .........(i)

Substitute the  value of h, k, x, y in equation (i) and find the value of a.

  21=a(8-0)^2+35

\Rightarrow 21=a\times 8^2+35

\Rightarrow 21=64a+35

\Rightarrow 64a=21-35

\Rightarrow 64a=-14

\Rightarrow a=\frac{-14}{65}

\Rightarrow a=-0.215

Hence, the equation of the parabola is:

y=-0.215x^2+35

8 0
2 years ago
Which is the first step in simplifying the expression 2(x + 3) + 5?
mina [271]
I believe the answer would be B
5 0
3 years ago
Help me plsssssssssssss
Zinaida [17]

Answer:

40mph

Step-by-step explanation:

(60mph+20mph)/2

40

7 0
3 years ago
How to explain how you got a prime number
WITCHER [35]
Divide by each number below it and find that each does not come out to a whole number except for dividing by 1
4 0
3 years ago
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