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irinina [24]
3 years ago
15

Evaluate -5x2-3x for x= -2.

Mathematics
2 answers:
FromTheMoon [43]3 years ago
7 0

Answer:

-5(-2x2)-3(-2)=26

ki77a [65]3 years ago
4 0

Answer:

are u a girl

Step-by-step explanation:

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Let g (x) = 3x+2 and f (x) = x-2 / 3 find the value. g (f(2))
Romashka [77]

Answer: OPTION C.

Step-by-step explanation:

In order to solve the given exercise, you can follow these steps:

1. Given the following function f(x):

f(x)=\frac{x-2}{3}

You must substitute x=2 into the function f(x). Then:

f(2)=\frac{(2)-2}{3}

2. Evaluating, you get:

f(2)=\frac{0}{3}\\\\f(2)=0

3. Now, the next step is to substitute f(2)  into the function g(x):

g (x) = 3x+2\\\\g (f(2)) = 3(0)+2

4. Finally, evaluating, you get the following result:

g (f(2)) = 0+2\\\\g (f(2)) =2

You can identify that it matches with the Option C.

3 0
4 years ago
How to find the slope from two points (4,5) (6,9)
Lemur [1.5K]

Answer:

Slope is 2

Step-by-step explanation:

use the y2 - y1 / x2 - x1 method

9 - 5 = 4

over

6 - 4 = 2

so the slope is 2

8 0
3 years ago
Read 2 more answers
DO
Evgen [1.6K]

The system of equations represented by the graph is:

y = x - 6

y + x = -2

And the solution is (2, -4), then the correct option is the first one.

<h3>What system is represented by the graph?</h3>

On the graph, we can see a system of linear equations, we can see a line with a positive slope and a line with a negative slope.

The line with a positive slope intercepts the y-axis at y = -6, then that line is:

y = a*x - 6

with a > 0.

The other line passes through the y-axis at y = -2, then the linear equation is:

y = b*x - 2

Where b < 0.

Also, remember that the solution for the system of equations is the point where the two lines intersect, so we can see that the solution is at (2, -4)

The only option that meets all the criteria is the first option:

y = x - 6

x + y = -2

And the solution is (2, -4)

Learn more about systems of equations:

brainly.com/question/13729904

#SPJ1

5 0
1 year ago
If 5+ 20 -22-3х - 10.2-2x+5, what is the value of х?
Elodia [21]

Answer:

<h2>3</h2>

Step-by-step explanation:

5+20\cdot2^{2-3x}=10\cdot2^{-2x}+5\qquad\text{subtract 5 from both sides}\\\\20\cdot2^{2-3x}=10\cdot2^{-2x}\qquad\text{divide both sides by 10}\\\\2\cdot2^{2-3x}=2^{-2x}\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\2^{1+2-3x}=2^{-2x}\\\\2^{3-3x}=2^{-2x}\iff3-3x=-2x\qquad\text{subteact 3 from both sides}\\\\-3x=-2x-3\qquad\tex\qquad\text{add}\ 2x\ \text{to both sides}\\\\-x=-3\qquad\text{change the signs}\\\\x=3

8 0
3 years ago
What is a unit rate?
Svetlanka [38]

Answer:

A rate is a ratio that is used to compare different kinds of quantities. A unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity. Some common unit rates are miles (or kilometers) per hour, cost per item, earnings per week, etc.

If you search that question up, this is what comes back.

Step-by-step explanation:

4 0
3 years ago
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