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3 years ago

Given f(x)=3x+8 and g(x)=6x+6 then what is (f+g)(−1)) ?

1 answer:

7 0

(f+g)(-1)
=f(-1)+g(-1), so;
f(x)=3x+8
f(-1)=3(-1)+8
f(-1)=-3+8
f(-1)=5

g(x)=6x+6
g(-1)=6(-1)+6
g(-1)=-6+6
g(-1)=0
Finally:
f(-1)+g(-1)
=5+0
=5. As a result, (f+g)(-1) is 5. Hope it help!

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Marta_Voda [28]

AK = 640
Δ ABC and ΔFJK are similar. They are small triangles.
ΔCDF is the big triangle.

640 / 2 = 320 m= CF
AC & FK= 320/2 = 160 m each

2AC = CF = 2FK
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BG = 20 m

20/160 = x / 320
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Area of CDF = (40 m * 320 m)/2 = 12,800 / 2= 6,400 m²

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3 years ago

A rectangular pyramid has a volume of 160 cubic feet. Find two possible sets of measurements for the base area and height of the

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Murljashka [212]

Answer:

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Step-by-step explanation:

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aleksandr82 [10.1K]

Answer:

added cement = 200 kg

Step-by-step explanation:

Sand = 0.8*1400

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If 1120 kg of sand represents the total sand in the 8:2 mixture.

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The sand amount continues the same but the total amount of the mixture and cement will change.

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3 years ago

What is the radius of an umbrella that has a circumference of 8.8 feet

KengaRu [80]

Answer:

r = 1.4

Step-by-step explanation:

c = Pi * D

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So divide both sides by Pi

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