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yKpoI14uk [10]
3 years ago
6

Ax=b(c+x) make x the subject of the formula

Mathematics
1 answer:
beks73 [17]3 years ago
7 0
Ax=b(c+x)
ax=bc+bx
(a-b)x=bc
x =bc/(a-b)
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The vertex of this parabola is at (2, -4). When the y-value is -1, the x-value is 3. What is the coefficient of the squared term
rjkz [21]

Answer:

3

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (2, - 4) , thus

y = a(x - 2)² - 4

To find a substitute (3, - 1 ) into the equation

- 1 = a(3 - 2)² - 4 ( add 4 to both sides )

3 = a

Thus

y = 3(x - 2)2 - 4 ← equation in vertex form

   = 3(x² - 4x + 4) + 4

    = 3x² - 12x + 12 + 4

     = 3x² - 12x + 16 ← equation in standard form

with coefficient of x² term = 3

5 0
3 years ago
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sattari [20]
What you have written down is correct, x=-3
4 0
3 years ago
Alexis drove 1200 miles in 30 h. What was her rate of travel in miles per hour
kari74 [83]

The answer is 40 miles per hour. If you divide 1200/30 you would get 40. Hope this helps!

7 0
3 years ago
Arturo is making an appetizer for a dinner party. The recipe calls for 3 cloves of garlic for 7 servings. There are 50 people at
Leviafan [203]

Answer:

21.42 cloves of garlic

Step-by-step explanation:

50 ÷ 7 = 7.14

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5 0
3 years ago
Read 2 more answers
Please help, i need to raise my grade <br>solve for v​
zhenek [66]

Answer:

2(s-c)/ a^2 =  v

Step-by-step explanation:

s = 1/2 a^2 v+c

Subtract c from each side

s -c = 1/2 a^2 v+c-c

s-c = 1/2 a^2 v

Multiply each side by 2

2(s-c) = 2* 1/2 a^2 v

2(s-c) = a^2 v

Divide each side by a^2

2(s-c)/ a^2 = a^2 v /a^2

2(s-c)/ a^2 =  v

8 0
3 years ago
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