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2 years ago

15= 3-4a what is the value of a in the equation

2 answers:

8 0

Step 1)

15 = 3-4a
15 =3+-4a
15 = -4a + 3

Step 2)

-4a + 3 = 15

Step 3)
-4a + - 3 = 15 - 3
-4a = 12

Step 4)

-4a/-4a = 12/-4

a = 3

Answer is a=3

anzhelika [568]2 years ago

6 0

Answer:

Step-by-step explanation:

when 13 is subtracted from 5 we get 8

again when 8=2m

8/2=m

4=m

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Hello! Please answer this question with all of the info it is asked for. Please be sure to include all of your work and share an

bija089 [108]

Answer:

a) 6.5 seconds
b) 13 seconds
c) 679 ft

Step-by-step explanation:

Given function:

h(t) = -16t^2 + 208t + 3

a) Maximum height is the vertex. The ball reaches the maximum after:

h = -208/2(-16) = 6.5 seconds

b) Time the ball was in the air:

-16t^2 + 208t + 3 = 0

Solving we get approximately t = 13 seconds

c) Maximum height is at vertex, we found t above:

h(6.5) = -16(6.5)^2 + 208*6.5 + 3 = 679 ft

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aleksandrvk [35]

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2 years ago

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Zina [86]

Answer:

x=5

Step-by-step explanation:

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2 years ago

Find the value of w in the pentagon below if the perimeter is 105 meters.

gavmur [86]

Answer: 9 (with a margin of: 0)

Step-by-step explanation:

Times everything by 5

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Subtract 15 from both sides

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