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melamori03 [73]
3 years ago
8

the vertex of this parabola is at 4, -3, x-value is 5 and y-value at -6 what is the coefficient of the squared expression

Mathematics
1 answer:
posledela3 years ago
6 0
Hello: 
an equation is : f(x) = a(x-4)² - 3 
the point (5 , -6)in parabola : --6 = a(5-4)² --3 
-6 =a -3
a =-3 is <span>the coefficient of the squared expression in the parabola equation</span>
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8 + 8r = 3 + 3r can anyone can help me out​
MAVERICK [17]

Answer:r = -1

Step-by-step explanation:

8+8r-(3+3r)=0

We add all the numbers together, and all the variables

8r-(3r+3)+8=0

We get rid of parentheses

8r-3r-3+8=0

We add all the numbers together, and all the variables

5r+5=0

We move all terms containing r to the left, all other terms to the right

5r=-5

r=-5/5

r=-1

Hope this helps

6 0
3 years ago
Read 2 more answers
How do work this out
BabaBlast [244]
We can factor this by using grouping. Take the leading coefficient and multiply it by the constant. In this case we get 5*-7 = -35. 

Now we need 2 numbers that add to 2 and multiply to be -35. The numbers are -5 and 7.

So split the 2r into these two terms and group.

(5r^2 - 5r) + (7r - 7)

Factor both groups.

5r(r-1) + 7(r-1)

The factors of (r-1) can be added together to get the answer.

(r-1)(5r+7)
6 0
3 years ago
Geometric mean. Find x, y, and z. Show work please.
Aleks [24]

Answer:

Step-by-step explanation:

i dont know the rest but the answer to x is 15 because the formula to that triangle is A^2+B^2=C^2

A=12

B=9

144(12^2) and 81 (9^2) add

225

find square root

15

z=15

4 0
3 years ago
What is the geometric sequence?<br><br> 2,3,4.5?
kykrilka [37]
An=a12n-1 or an=(1)2n-1
7 0
3 years ago
write each equation in a slope-intercept form. 1. (6, 2) and (-3, -6) 2. (-4 and -6) and (3, -8) 3.(-2, -8) and (6, 4) 4.(-3, 9)
ANTONII [103]

Answer:

1. (6, 2) and (-3, -6) 2. (-4 and -6) and (3, -8) 3.(-2, -8) and (6, 4) 4.(-3, 9) and (0, 1)​ 5.(2, -2) and (8, 1) 6.(-12, 4) and (0, 2) 7.(-8, -4) and (4, -7) 8.(-4, 13) and (-2, 6)​

Step-by-step explanation:

5 0
3 years ago
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