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lesya692 [45]
3 years ago
11

Solve for a a² + 7a - 8 = 0

Mathematics
1 answer:
masya89 [10]3 years ago
5 0

Answer:

a=-8

Step-by-step explanation:

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Can someone plz help me
Aleonysh [2.5K]

Answer:

C

Step-by-step explanation:

It makes sense

4 0
2 years ago
Which equation represents y = x2 + 16x + 70 in vertex form?
baherus [9]

Answer:

y = (x + 8)² + 6

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

To obtain this form use the method of completing the square

add/subtract (half the coefficient of the x- term )² to x² + 16x

y = x² + 2(8)x + 64 - 64 + 70

   = (x + 8)² + 6 ← in vertex form

8 0
3 years ago
Find the center and radius of the circle and sketch its graph<br> X^2+y^2=9
Vaselesa [24]

Answer:

Centre (0,0)

Radius √9 = 3

I've attached a graph if the circle with it

Answered by GAUTHMATH

6 0
3 years ago
Daniela has the same amount of money automatically deposited into a new savings account each week. After 3 weeks, she has $18. A
Burka [1]

Answer:

$6 per week  (ratio 6/1)

Step-by-step explanation:

18/3=6

30/5=6

8 0
2 years ago
PLEASE HELP PLESD PLED​
-BARSIC- [3]

Answer:

<h2>x = 35</h2>

Step-by-step explanation:

Because the angles are vertical angles, they must be equal.

3x + 7 = 112

3x = 105

x = 35

Check

3(35) + 7 = 112

112 = 112 Correct

7 0
2 years ago
Read 2 more answers
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