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seropon [69]
3 years ago
14

F(-2) =-2x+11 Evaluate the function

Mathematics
1 answer:
melisa1 [442]3 years ago
3 0

Happy Holidays!

\large\boxed{f(-2) = 15}

f(x) = -2x + 11

Find f(-2) by substituting in -2 for x:

f(-2) = -2(-2) + 11

Simplify:

f(-2) = 4 + 11

f(-2) = 15

You might be interested in
{f(x)=2x+1 g(x)=x2+2x−8
n200080 [17]

The value of g(x) = 2[f(x)]² - 1 is g(x) = 8x² + 8x + 1

<h3>How to find a function?</h3>

f(x) = 2x+1

Find

g(x) = 2[f(x)]² - 1

Hence,

g(x) = 2[2x + 1]² - 1

g(x) = 2[4x² + 4x + 1] - 1

g(x) = 8x² + 8x + 2 - 1

g(x) = 8x² + 8x + 1

learn more on function here: brainly.com/question/1442153

#SPJ1

8 0
2 years ago
The pentagonal prism has a perpendicular distance of 14 units between the bases. The volume of the prism is 840 cubic units. Wha
Leno4ka [110]

Answer:

Option 4. Perimeter = 30 units

Step-by-step explanation:

Since the volume of a pentagonal prism is 840 cubic units.

Perpendicular distance between the bases = 14 units

We know volume of a pentagonal prism = Area of base × distance between the bases

840 = Area × 14

Area = 840/14 = 60 square units

Now area of a pentagon

A=\frac{a^{2}}{4}\times\sqrt{5(5+2\sqrt{5})}

1.72a^{2}=60

a^{2}=\frac{60}{1.72}=34.90

a=\sqrt{34.9}=5.91

Therefore perimeter of the pentagon = 5×a = 5×5.91 = 29.54 ≈ 30 units

8 0
3 years ago
Deon has been given a list of 3 bands and asked to place a vote. His vote must have the names of his favorite and second favorit
Ipatiy [6.2K]

Answer:

6

Step-by-step explanation:

Deon has to pick 1 band for his favorite band, and one band for his second favorite band. There are 3 options for his favorite band, and after picking this band, there are 3-1=2 options for his second favorite band. 3*2=6.

6 0
4 years ago
Cameron is flying 8,000 feet above sea level. Directly below her, she sees a whale 50 feet below sea level. Which absolute value
Lesechka [4]

Answer:

D) |−8,000 − (−50)|

Step-by-step explanation:

When we are dealing with questions involving above or below sea level,

The formula for the Absolute value expression representing the distance = | Height above sea level -(Distance below sea level|

Height of Cameron above sea level = 8000ft = -8000

Distance of the whale below sea level = 50ft = -50

Hence, we have:

|−8,000 − (−50)|.

Option D is the correct option

5 0
3 years ago
Find all solutions to the system: <br> 5x-3y=2, <br> 15x+6y=6
meriva

Answer:

2/5   0

Step-by-step explanation:

3 0
3 years ago
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