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12345 [234]
3 years ago
12

B) Find the value of 7 - 2x when x = -3

Mathematics
2 answers:
kkurt [141]3 years ago
6 0

Answer:

13 is the value of 7 - 2x when x = -3

Step-by-step explanation:

7 -(2×-3)

7 - (-6)

7+6

13

myrzilka [38]3 years ago
4 0

Answer:

Replacing the value or x = -3in 7 - 2x, we get,

7 - 2 x (-3)

= 7 + 6

= 13

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A bag contains 36 marbles. 10 marbles are green, 6 marbles are blue, 18 marbles are yellow, and 2 marbles are purple.
alexdok [17]

Answer:

10/72 or 0.14

Step-by-step explanation:

There are 72 marbles in total and 10 of them are green. So, it is 10/72 or 1.388 rounded to the nearest hundredth is 0.14.

7 0
3 years ago
Population density is the number of people per unit of area the population density of a certain region is 60 people per square k
DedPeter [7]

Answer:

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Step-by-step explanation:

4 0
2 years ago
When f(n) = 34, what is the value of f(n-6)?
Mashutka [201]

Answer:

28

Step-by-step explanation:

f(n)=34, f(n-6)=34-6

=28

3 0
3 years ago
What is the equation of the line that passes through the point (2,-4) and has a slope of -2
kvv77 [185]

Answer:

The answer is

\huge y =  - 2x

Step-by-step explanation:

To find an equation of a line when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

From the question we have

y + 4 =  - 2(x - 2) \\ y + 4 =  - 2x + 4 \\ y =  - 2x + 4 - 4

We have the final answer as

<h3>y = -2x</h3>

Hope this helps you

3 0
3 years ago
Find (gof)(3)<br> f(x) = |x+2|<br> g(x) = -x^2<br><br> A. -25<br> B. 1 <br> C. 4<br> D. -15
Ksenya-84 [330]

Answer:

A

Step-by-step explanation:

to find (g ○ f)(3) , evaluate f(3) and substitute the value obtained into g(x)

f(3) = | 3 + 2 | = 5 , then

g(5) = - 5² = - 25

3 0
2 years ago
Read 2 more answers
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