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3 years ago

HELP ITA A TEST ON quizizz HELP ME PLZ FOR IO POINTS HELP ME NOW NOW NPW

Mathematics

2 answers:

Flura [38]3 years ago

5 0

Sry but I hope when Christmas comes u will have a great one

ioda3 years ago

3 0

Answer:

Step-by-step explanation:

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Give an example of where you would use either the Commutative or Associative Property of Addition in a real world situation.

umka2103 [35]

So the best I could come up with is paper-rock-scissors; the operation takes two inputs and puts out the winner (assuming they are different).

So (paper rock) scissors= paper scissors = scissors,

But paper (rock scissors)= paper rock = paper.

This is a good example because it shows that associativity matters even outside of math.

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3 years ago

For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you subs

tatiyna

$-x-2y=-4 \\ 3x+y=12 \\ \\ \hbox{the first equation:} \\ -x-2y=-4 \ \ \ \ \ \ |+2y \\ -x=2y-4 \ \ \ \ \ \ \ \ |\times (-1) \\ x=-2y+4$

The expression you would substitute for x is -2y+4. The answer is d.

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3 years ago

A tank is in the shape of a cylinder 7 feet tall and 10 feet and radius find the exact surface area of the tank

Varvara68 [4.7K]

Answer:

$2036.75088022^{2}$ or $2036.8^{2}$ rounded to the nearest tenth

Step-by-step explanation:

1. Find the area of the base and the top, which are circles.

Area of circle : $\pi 10^{2}$ = 986.960440109

There are 2 circles, soooooo....= 986.960440109 x 2 = 1973.92088022

2. Find the rest of the area of the cylander.

So, we have to find the circumference of the circle.

Circumference :2 $\pi$ 10 = 62.83

3. Multiply circumference by height.

62.83 x 7 = 439.81

4. Add all of the products.

439.81 + 1973.92088022 = $2036.75088022^{2}$ or $2036.8^{2}$ rounded to the nearest tenth

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3 years ago

10. If both equations have the same slope and the same y-intercepts, which

Papessa [141]

The answer is C because it’s the same line

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2 years ago

12 The cost of a telephone call is $0.60 for the first three minutes plus $0.17 for each additional minute. What is the greatest

rusak2 [61]

The correct answer would be j (18) because all you have to do is keep adding 0.17 and keep counting until you get to the 2.50 mark. I hope I helped you

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3 years ago

Read 2 more answers