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sasho [114]
4 years ago
10

This is in my homework, and I don’t understand how to do it

Mathematics
2 answers:
saw5 [17]4 years ago
6 0

Answer:

x = 45/7 or 6.428 (6.43)

Step-by-step explanation:

kykrilka [37]4 years ago
5 0

cross multiply and solve for x. x is about 6.43

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Must a function that is decreasing over a given interval always be negative over that same interval? Explain.
kolbaska11 [484]

Answer:

its called common sense

Step-by-step explanation:divide negative by the positive leaving you with the commomn answer thus its subtraction

5 0
3 years ago
When solving a system of equations by elimination, there are multiple correct ways you can start. which of the following is NOT
Marta_Voda [28]

Answer: the 2nd one

Step-by-step explanation: you didn’t multiply the -7 by 5, therefore being wrong

5 0
3 years ago
What is the vertical distance from the origin to the point (2, 9)?
vladimir2022 [97]

Answer:

The vertical distance from the origin to the point (2,9) is 9

Or

9.2195

Step-by-step explanation:

It's 9 because y coordinate gives the vertical distance.

Or

It might be 9.2195 because they tell us the point is 2.9 and they are asking the distance from the origin which is zero. So we can use Pythagorean theorem. A²+B²=C² Look at it as a triangle. They have given us A and B, so you can find C² using those information. If you plot the point in the line you know that A=2 and B=9. Using the formula will be 2²+9²=C² ⇒ 4+81=C² ⇒ 85=C². To get rid of the power of 2 in c we have to square both side to cancel it out. C would equal 9.2195

4 0
3 years ago
A water pipe has a circular cross section of radius 0.75 cm. Water flows through the pipe at a rate of 16 cm/s.
Alexeev081 [22]

Step-by-step explanation:

volume of water flows through the pipe per second= π r² h = 22/7 × ( 3/4)² × 16

= 22/7 × 9/16 × 16

= 22/7 × 9

= 3.14 × 9 = 28.26 cm ³= 28.26/ 1000= 0.02826 litre

0.02826litre = 1 second

1 litre = 1 / 0.02826 = 100000/2826

= 35 .38 seconds

answer = 35.38 seconds

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8 0
3 years ago
Which mathematical property is demonstrated below? 3 + 0 = 3
Alik [6]

Answer:

<h3><em>IDENTITY </em><em>PROPERTY </em></h3>

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8 0
3 years ago
Read 2 more answers
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