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topjm [15]
3 years ago
8

If f(x)=-2x-3 find f(4)

Mathematics
1 answer:
Naddik [55]3 years ago
4 0

Answer:

f(4) = -11

Step-by-step explanation:

Plug in 4 for x: Note that x = 4.

f(x) = -2x - 3

f(4) = -2(4) - 3

Remember to follow PEMDAS. First, solve the multiplication, then subtract:

f(4) = (-2 * 4) - 3

f(4) = (-8) - 3

f(4) = -11

f(4) = -11 is your answer.

~

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In 2010, there were 311 middle schools in Virginia. In 2016, there were 306. By what percent did the number of middle schools in
Nataly_w [17]

Answer:1.6%

Step-by-step explanation: no of students in 2010=311

no of students in 2016=306

difference=311-306

                 =5

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3 0
3 years ago
F and g are inverse functions.<br> f(n) = -(n + 1)^3<br> g(n) = 3 + n^3<br> a) True<br> b) False
Sophie [7]

Answer:

false

Step-by-step explanation:

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6 0
3 years ago
What are the domain restrictions of a + 1 / a^2-5a-36?
velikii [3]
All real numbers except -4 and 9.    

The domain of an expression is the range of all values for which the expression is defined. Looking at the expression, it will legal everywhere except when a^2 - 5a - 36 is equal to 0. Since that's a quadratic equation, we can use the quadratic formula to find where its value is 0, giving -4 and 9.    

Therefore the domain of the expression is, All real numbers except -4 and 9.
3 0
3 years ago
Help me with this please
borishaifa [10]

Answer:

11/60

Step-by-step explanation:

sin x = opp/hyp

cos x = adj/hyp

tan x = opp/adj = (opp/hyp)/(adj/hyp)

tan x = (11/61)/(60/61)

tan x = 11/61 * 61/60

tan x = 11/60

3 0
3 years ago
Read 2 more answers
Pls help me i need the answer <br><br>4672 x 47 will mark brainlists
rewona [7]
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3 years ago
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