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hammer [34]
2 years ago
11

If x= -2what is f(x)= -x²+5​

Mathematics
1 answer:
RoseWind [281]2 years ago
7 0

Answer:

1

Step-by-step explanation:

f(x)= -х² + 5

f(-2)= -2²+5

f(-2)= -4+5

f(-2)= 1

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Jackie earns $172 per week at her part time job. She is saving this money to buy a used car that cost $2000. At this rate, how m
vodomira [7]

Answer:

12 weeks

Step-by-step explanation:

It will take Jackie 12 weeks to buy her car because she earns 172 per week.

If you divide 2000 buy 172 you end up with 11.6

if you multiply 11 and 172 you get 1,892 which is just a little under 2000

if you add another week = 172$ you will arrive at 2064 which is enough to buy  

her car.

Hope this helps.

3 0
3 years ago
A rectangle is 10 inches wider than it is long. The perimeter is 48 inches. what is the length and width of the rectangle?
Liula [17]

Answer:

a) x represents length?

b) 10+x=48

d) 38 inches

Step-by-step explanation:

c) 10+x=48

subtract 10 to both sides

x=48-10

x=38

3 0
3 years ago
Simplify <br> 3 2/3 - 2 3/4 =
Rasek [7]

Answer: 11/12

Step-by-step explanation:

1. To solve this problem you can transform the mixed numbers given in the problem to fractions, as you can see below:

3 2/3=(3*3+2)/3=11/3

2 3/4=(4*2+3)/4=11/4

2. Now you must make the substraction of the fraction:

11/3-11/4=11/12

3. Therefore, the answer is 11/12

6 0
3 years ago
Evaluate -x + 2.7 for x =0.9
DiKsa [7]
Plug in 0.9 for x

-(x) + 2.7

- (0.9) + 2.7

simplify

2.7 - 0.9 = 1.8

1.8 is your answer

hope this helps
3 0
3 years ago
Read 2 more answers
nolan is taking a multiple choice test his grade is given by the equation y=70-2x where y represents his final score and x repre
Fynjy0 [20]

Answer:

70 could represent the total number of points nolan can earn on the test

Step-by-step explanation:

7 0
2 years ago
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