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taurus [48]
3 years ago
12

+ 8a + 15 = 0" alt=" {a }^{2} + 8a + 15 = 0" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
NISA [10]3 years ago
8 0

Answer:

a = - 5, a = - 3

Step-by-step explanation:

Given

a² + 8a + 15 = 0 ← in standard form

(a + 3)(a + 5) = 0 ← in factored form

Equate each factor to zero and solve for a

a + 3 = 0 ⇒ a = - 3

a + 5 = 0 ⇒ a = - 5

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Answer:

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8 0
4 years ago
What are the coordinates of the vertex of the graph of f(x) = -3 |x-1|? I need help in how to solve it.
Katyanochek1 [597]

Answer: f(x) = -3| x - 1 |  is really just  f(x) = -3| x - 1 | + 0.

now, what value of "x" makes the absolute value expression to 0?

well, let's just set it to 0 and check,

x - 1 = 0

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4 0
3 years ago
9. A car tire has a radius of 3.25 inches. What distance will the tire travel after
lutik1710 [3]

The distance traveled by the car during 42 rotations is 857.22 inches.

<h3>Distance traveled by the car during 1 rotation</h3>

The distance traveled by the car is determined by calculating the circumference of the tire at the given radius as shown below.

D = 2πr

D = 2 x 3.14 x 3.25

D = 20.41 inches

<h3>Distance traveled by the car during 42 rotations</h3>

D = 42 x 20.41

D = 857.22 inches

Thus, the distance traveled by the car during 42 rotations is 857.22 inches.

Learn more about distance here: brainly.com/question/17273444

4 0
3 years ago
What is ask in the problem​
poizon [28]
What is the problem??
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3 years ago
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