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Galina-37 [17]
3 years ago
14

Which are the solutions of x^2 = -7x-8

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
3 0
The answer to the question is d
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Yesterday 160 guest at a hotel called for room service, and 240 guest did not called for room service. What is the percentage of
Dmitry [639]
160/400
80/200
40/100
C
8 0
3 years ago
A survey reveals that the sales of smartphones is increasing considerably. The average annual sales of smartphones, in million u
EleoNora [17]

Answer:

when the survey was initially conducted the average sales of smartphones was 1.7 million units

Step-by-step explanation:

The average annual sales of smartphones is given by function

P(n)= 1.7 (b)^n

Exponential growth function is given by

f(x)= ab^x

Where a= initial value

b = growth factor , b= 1+r where 'r' is the growth rate

x is the time period

Now we compare f(x) with P(n)

the value of a= 1.7 that is the initial value.

So we can say, when the survey was initially conducted the average sales of smartphones was 1.7 million units

8 0
3 years ago
20 POINTS TO WHO EVER GETS IT RIGHT
yuradex [85]
The answer is A i think.
5 0
3 years ago
The base of a triangle exceeds the height by 4 inches. if the area is 178.5 square inches, find the length of the base and the h
Elanso [62]
A = 1/2 * b * h
A = 178.5
b = h + 4

178.5 = 1/2 * (h + 4) * h
357 = h^2 + 4h
h^2 + 4h - 357 = 0
(h - 17)(h + 21) = 0

h - 17 = 0
h = 17

h + 21 = 0
h = -21 .....not this one because it is negative

b = h + 4
b = 17 + 4
b = 21

so the height is 17 inches and the base is 21 inches <==
6 0
3 years ago
In circle O, the radius is 8 and the m angle D O G = 95°. Find the length of arc DG
lord [1]
Length of the Arc = Ф/360 * 2πr

Substitute the given values, 
l = 95/360 * 2 * 3.14 * 8

l = 19/72 * 50.24

l = 13.26 

In short, Your Answer would be: Option A

Hope this helps!
6 0
3 years ago
Read 2 more answers
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