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nevsk [136]
2 years ago
7

NEED HELP ASAP!!!! Given the function, find f(-1). f(x) =−3x+7?

Mathematics
1 answer:
maksim [4K]2 years ago
7 0

Answer: f(−1)=−10

Step-by-step explanation:

f(−1)=3x−7

Substitute −1 for x

f(−1)=3(−1)−7=

f(−1)=−3−7=

f(−1)=-10

You might be interested in
A square with side lengths of 3 cm is reflected vertically over a horizontal line of reflection that is 2 cm below the bottom ed
oksian1 [2.3K]

Answer:

a) 4 cm

b) 5 cm

c) 10 cm

Step-by-step explanation:

The side lengths of the reflected square are equal to the original, and the distance from the axis(2) also remains the same.  From there, it is just addition.

Hope it helps <3

5 0
2 years ago
The average cost of an IRS Form 1040 tax filing at Thetis Tax Service is $138.00. Assuming a normal distribution, if 77 percent
jek_recluse [69]

Answer:

22.97

Step-by-step explanation:

Given that the average cost of an IRS Form 1040 tax filing at Thetis Tax Service is $138.00.

Let x be the average cost an IRS Form 1040 tax filing at Thetis Tax Service

P(X is given

From std normal distribution table we find 77th percentile z value.

z=0.74

Corresponding X value = 155

i.e. 0.74=\frac{155-138}{s} where s is the std deviation

Simplify to get

Std deviation  = \frac{17}{0.74} \\=22.97

8 0
2 years ago
1. If Jeremy found 80% of the collector cards and Tim found 41 of the 45 cards,
baherus [9]

Answer:

Tim has more

Step-by-step explanation:

41/45 when you type it into a calculator is 91% and 91%>80%

6 0
2 years ago
Is 290.45 higher than 2867.5
tekilochka [14]
2867.5 is bigger

Even though they both show 5 numbers, the second one has only one decimal place versus 2 on the first

If you ignore the decimal, your left with
290 vs 2867

2867 is much bigger than 290 so this is the answer
5 0
2 years ago
4x - 5y + 2xy = 0<br> Can Someone do this for me? I need help.
Nady [450]

Answer: x = 5y/ 2y + 4

Step-by-step explanation: coz I juss know

4 0
3 years ago
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