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Ksenya-84 [330]
3 years ago
5

Which set of ordered pairs is a linear function?A) (-3, 2) (-1, 2) (1, -2) (3, 2)

Mathematics
1 answer:
almond37 [142]3 years ago
5 0
The correct answer is c
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I need to simplify each expression. Can someone please help me
Flura [38]

Answer:

A.-34t

B.-21x

C.2x+7y-15

D.3xy+27

Step-by-step explanation:

For the first 2 questions just take out the variable and add or subtract all the numbers. For the next 2 simplify one variable at a time. It always goes in alphabetical order.

7 0
3 years ago
I need to know how to do a)^
riadik2000 [5.3K]

a)

he charges a fixed cost of $12, meaning a one-time charge of 12 bucks, plus 1.50 for each window.

1 window................ 12 + 1.5(1)

2 windows............. 12 + 1.5(2)

3 windows............. 12 + 1.5(3)

4 windows............. 12 + 1.5(4)

x windows............. 12 + 1.5(x)

\bf \stackrel{cost}{y}=\stackrel{\stackrel{fixed}{cost}}{12}+\stackrel{\stackrel{per}{window}}{1.5x}


b)


\bf \stackrel{cost}{28.50}=\stackrel{\stackrel{fixed}{cost}}{12}+\stackrel{\stackrel{per}{window}}{1.5x}\implies 16.50=1.5x\implies \cfrac{16.50}{1.5}\implies \boxed{11=x}

7 0
3 years ago
What is the radius of a sphere whose surface area is 100cm²?
wariber [46]

Answer:

r≈2.82

Step-by-step explanation:

Hope this helps and have a great day!!!

3 0
3 years ago
Read 2 more answers
Alex needs 80 cm of thread for a sewing project. The thread is on a spool with a circumference of 10 cm. How many times must ale
Mrrafil [7]

<u>Answer:</u>

If the spool has 10 cm of circumference or perimeter, this means that 10 cm of thread fits the whole circumference of the spool, which also means that

<h2>1 unwind is equivalent to 10 cm of thread. </h2>

Then, we have to make the following question:

If 10 cm of thread is equivalent to 1 unwind, to how many unwinds is equivalent 80 cm of thread?

If we want to know how many time does Alex need to unwind the spool, we can use the following relation also called the <u>Rule of Three: </u>

<u> </u>

10 cm----1 unwind

80 cm----X unwinds

X=\frac{80cm(1unwind)}{10cm}

X=8unwinds

The answer is:

Alex must unwind the spool 8 times in order to get 80 cm of thread


5 0
3 years ago
Q and R are not mutually exclusive events. If P(Q)=5/8 and P(R)=1/8 and P(Q and R)=1/32,Find P(q or R)
artcher [175]
The solution for this problem is just adding and subtracting fractions. We all know how to add and subtract function because our teacher since high school teach us how to. P(Q or R) = P(Q) + P(R) - P(Q and R) = 5/8 + 1/8 - 1/32 = 23/32

The answer to this question is 23/32.
8 0
4 years ago
Read 2 more answers
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