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tangare [24]
3 years ago
10

If f(x)= 3x+5 and g(x) = 3x^2 evaluate f(-8)

Mathematics
1 answer:
Reika [66]3 years ago
5 0

Answer:OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF


Step-by-step explanation:OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF


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A flood a creek's water level changes by −4 7/10 feet in 2 hours. What is the average change in the creek's water level per hour
neonofarm [45]

Answer:

-2.35

Step-by-step explanation:

Divide -4.7/2 = -2.35

8 0
2 years ago
The height of an equilateral triangle is 13 feet. The triangles area is 39 feet squared. What is the perimeter of the triangle?
cluponka [151]

Answer:

It is 6ft

Step-by-step explanation:

The formula is

A= 1/2bh so now you would substitute

39= 1/2(13)h

78= 13h

6=h

8 0
3 years ago
The angle of elevation of the sun is 22∘. A 6ft tall man is standing in the shadow of a 76 ft tall tree so that the tips of thei
Anika [276]

Answer: 173.26 ft = 173 ft

Step-by-step explanation:

h tree: 76 ft

h man: 6 ft

As we can see on the sketch, they form a right triangle, so:

tan 22 = 76/y ⇒ 0.404 = 76/y ⇒ y = 76*0.404 ⇒ y = 188.11 ft

tan 22 = 6/x ⇒ 0.404 = 6/x ⇒ x = 6*0.404 ⇒ x = 14.85 ft

distance between the man and the tree = y - x = 188.11 - 14.85 = 173.26 ft

6 0
3 years ago
The perimeter of a rectangle is 36 cm. The length is 10 cm longer than the
Nesterboy [21]

Answer:

Below

Step-by-step explanation:

X(x+10)=36

x= -5+sqrt 61 or-5-sqrt 61

since only the first one bigger than0, x is -5+sqrt61 and other side is sqrt61+5

3 0
3 years ago
The number of girls who work at Super shopper is 2 more than 3 times the number of boys. If 30 boys work at super shopper; how m
mote1985 [20]
I think its 92 but im not entirely sure. hope it helps though
4 0
3 years ago
Read 2 more answers
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