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3 years ago

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please help!!! You buy cards to send to family and friends for their birthdays. The function y=2.5x represents the cost y of the

number of cards x you buy. Is 8 in the domain? EXPLAIN. Is 40 in the range?EXPLAIN

1 answer:

Talja [164]3 years ago

3 0

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Find the sum and choose the correct answer.

Alborosie

B, n to the 3rd power + 4n to the 2nd power +8n -16

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4 years ago

Read 2 more answers

EXPLAIN<br> A LOT OF POINTS!!!

IrinaVladis [17]

Answer:

x−(−16)=−28+12

x−(−16)=−28+12

x+16=−28+12

x+16=(−28+12)

x+16=−16

x+16=−16

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3 years ago

Choose the more precise measurement.<br><br> 37 T <br><br> 56 lb

Gnesinka [82]

Answer:

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Step-by-step explanation:

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3 years ago

A force of $20$ newtons will stretch a spring $5$ centimeters. What is the total number of centimeters that a force of $60$ newt

Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

Hooke's Law applies here, which is a linear relationship. It would be easier to solve this using proportions with N of force on the top and the amount of stretch in cm on the bottom. Set up with our unknown, the number of cm:

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3 years ago

Which graph represents y = –2x?

Andrei [34K]

Solution:

<u>In this case, we are given:</u>

Equation: y = -2x
Slope = -2
y-intercept = 0

Looking at Option A, we can tell that its <u>slope is -2 and y-intercept is 0.</u>

Since this is matching with the info we are given, Option A is correct.

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2 years ago