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gregori [183]
3 years ago
7

Which table represents a function?

Mathematics
1 answer:
uranmaximum [27]3 years ago
3 0

Answer:

Its the first one which is (-3, 1) (0, 0) (-2, -1) (8, 1)

Step-by-step explanation:

You have to check the input table which is the 'x' and make sure there aren't any repeating numbers at all, the output which is the 'y' it is fine is there are repeating numbers.

hope this helps.

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A palm tree casts a shadow that is 28 feet long. A 6-foot sign casts a shadow 8 feet long.
s2008m [1.1K]

Answer: The height of the palm tree is 21 feet.

Step-by-step explanation:

We can use a ratio to solve this:

Actual height to shadow for both objects. The fraction equivalents must be equal.

6/8 = x/28 . Cross multiply

6(28) = 8x

168 = 8x   Divide both sides by 8  (8's "cancel" on the right)

168/8 =8x/8

21 = x . This gives us the tree's height as 21 feet.

<em>Another way to solve this is to use the ratios, but simplify the first fraction</em>

<em>6/8 = 3/4</em>

<em>Then multiply the length of the shadow by 3/4</em>

<em>3/4 × 28 = height</em>

<em>28÷4 = 7    7 × 3 = 21</em>

<em>21  feet= the height of the palm tree.</em>

3 0
3 years ago
Solve the systems of equations using elimination
coldgirl [10]

Answer:

x=1, y=1. (1, 1). The answer is D).

Step-by-step explanation:

3x-5y=-2

4x-7y=-3

--------------

4(3x-5y)=4(-2)

-3(4x-7y)=-3(-3)

------------------------

12x-20y=-8

-12x+21y=9

--------------------

y=1

3x-5(1)=-2

3x-5=-2

3x=-2+5

3x=3

x=3/3

x=1

6 0
3 years ago
Whats 387 rounded to the nearests 100
torisob [31]
I rounded it and the answer is 400
4 0
3 years ago
HELLPP PLEASE :) THIS IS HARD BRAINLIEST!
lorasvet [3.4K]

Answer:

1).B

2).A

3).D

4).B

5).C

6).D

7).D

8).B

9).C

10). I believe it is A

Step-by-step explanation:

I'm sorry, i do not know how to explain this, I hope I helped you in some way and I hope these answers work for you :)

7 0
2 years ago
Four friends equally share 1/2 of a pizza how much of the pizza does each friend get?
alex41 [277]
The correct answer is 12.5% each
6 0
3 years ago
Read 2 more answers
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