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Mariulka [41]
3 years ago
5

What's 21v+8-12v-7+3t-1t

Mathematics
2 answers:
Ivan3 years ago
5 0
The answer for this question is 2t+9v+1
Morgarella [4.7K]3 years ago
4 0
9v-1+2t
Hope this is right!

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The width of a rectangle is 7/15 of its length. The width of the rectangle is 56 cm. Find the length of the rectangle.
Hoochie [10]
W = 7/15 L

w = 56

56 = 7/15 L

56 x 15/7 = 7/15 x7 L

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A student draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-
faust18 [17]

Answer:

The positive difference between the a values is 0.5

Step-by-step explanation:

we know that

Both parabolas cross the x axis at (-4,0) and (6,0)

so

The general equation is

y=a(x+4)(x-6)

<em>Find the value of a in the first parabola</em>

The y-intercept is (0,-12)

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For x=0, y=-12

substitute

y=a(x+4)(x-6)

-12=a(0+4)(0-6)

-12=a(-24)

a=0.5

<em>Find the value of a in the second parabola</em>

The y-intercept is (0,-24)

so

For x=0, y=-24

substitute

y=a(x+4)(x-6)

-24=a(0+4)(0-6)

-24=a(-24)

a=1

<em>Find the positive difference between the a values for the two functions</em>

so

1-0.5=0.5

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3 years ago
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A quarter or $0.25.
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a is the right answers to the same as the right

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3 years ago
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