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densk [106]
2 years ago
11

1. What is the constant rate of change of the table below?

Mathematics
1 answer:
Gekata [30.6K]2 years ago
5 0

70 miles

Step-by-step explanation:

every two hours there are 70 miles. If that was the answer you were looking for anyways.

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What is the solution to the compound inequality in interval notation?
ohaa [14]

The given compound inequality is

2(x+3)>6 \ or \ 2x+3\leq  -7

First we solve the first inequality,

2(x+3)>6
\\
x+3 >3
\\
x>0

Now we solve the second inequality

2x+3\leq -7
\\
2x \leq  -7-3
\\
2x\leq  -10
\\
x\leq  -5

So we have

x > 0 \ or  \ x\leq  -5

So the required solution is

( - \infty,-5] \ or \ (0, \infty)

Correct option is A .

4 0
2 years ago
Find the circumference use 3.14 for the value of
Reil [10]

Answer:

the answer is 69.3

Step-by-step explanation:

5 0
2 years ago
Rafael can choose plan a or Plan B for his long-distance charges. For each plan, cost (in dollars) depends on minutes used (Per
PilotLPTM [1.2K]

Answer:

a. Plan B; $4

b. 160 mins; Plan B

Step-by-step explanation:

a. Cost of Plan A for 80 minutes:

Find 80 on the x axis, and trave it up to to intercept the blue line (for Plan A). Check the y axis to see the value of y at this point. Thus:

f(80) = 8

This means Plan A will cost $8 for Rafael to 80 mins of long distance call per month.

Also, find the cost per month for 80 mins for Plan B. Use the same procedure as used in finding cost for plan A.

Plan B will cost $12.

Therefore, Plan B cost more.

Plan B cost $4 more than Plan A ($12 - $8 = $4)

b. Number of minutes that the two will cost the same is the number of minutes at the point where the two lines intercept = 160 minutes.

At 160 minutes, they both cost $16

The plan that will cost less if the time spent exceeds 160 minutes is Plan B.

4 0
2 years ago
Calculate the length of the circumference of a circle with radius of 4.5cm <br><br> Pie=3
Butoxors [25]
Circunference=2 times pi time r
if pi=3 and r=4.5
circunerence=2 times 3 times 4.5=3 times 2 tiimes 4.5=3 times 9=27
answer is 27cm

5 0
3 years ago
Read 2 more answers
500-400 x 1823= please help only Johannes02 comment
liberstina [14]
It is -728700 is my answer


please can i have a brainliest
7 0
2 years ago
Read 2 more answers
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