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Gennadij [26K]
1 year ago
7

Find f(-3) if f (x) =|x+5|

Mathematics
1 answer:
vesna_86 [32]1 year ago
7 0

Answer:

the answer is two because the absolute value delete the negative in result not in question

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Susan is writing a linear equation for the cost of her cell phone plan. In the first month, she talks for 52 minutes and is char
Alex787 [66]
Assuming that the cost per minute is the same for both months and the plan fee is the same, you can use y=mx+b for this

y is the cost of the phone plan, x is the cost per minute and b is the start cost.

so    19.41=25x+b for the first month
and  45.65=380x+b for the second month

solve both for b you get:
19.41-25x=b and 45.65-380x=b.  from this we get
19.41-25x=45.65-380x

solve for x

328x=26.24 and x=0.08

this means the cost per minute is 0.08c/min (answer A)

rewrite the equation to calculate b, and where this time, the x is the number of minutes talked.

y=0.08x+b and plug in one of the two months

45.65=0.08 * 380 + b

Solve for b and b is 15.25

so the final equation is

y=0.08x+15.25  (answer B)
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3 years ago
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Sever21 [200]
The answer is the bottom right one
7 0
2 years ago
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A piece of cloth is 12 yards in length. if 3/4 of the cloth is used for bedsheet, how many yards of the cloth will be left?
larisa [96]

Answer:

9 yards

Step-by-step explanation:

multiply the length of the cloth by the length used for bedsheet

12*\frac{3}{4}\\9 yards

3 0
2 years ago
4/6 simplfy it can someone help
Gemiola [76]

4/6=2/3 (divide both numerator and denominator by 2 (gcd)).

Hope this helps.

4 0
3 years ago
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How do i solve this step by step? <br><br> 3( q – 3 ) = 6
mote1985 [20]

Answer:

3q-9=6

3q=9+6

3q=15

q=5

7 0
3 years ago
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