For each value of u, determine whether it is a solution to -15 = 1 - 4u

Mathematics

1 answer:

Alona [7]3 years ago

6 0

Answer:

1. No

2. No

3. No

4. Yes

Step-by-step explanation:

Plug each option into u then solve the equation and see if the answer matches -15.

Ex. -15 = 1 -4 (2)

-15 = 1 -8

-15 = -7

-15 does not equal -7 therefore it is false. Use Pemdas to solve.

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Which of the following best describes the graph of this system of equations ? y=-2x+3 and 5y=-10x +15

ELEN [110]

Remark

When talking about straight lines, D is never true. Never.

C is possible, but in this case not true. Read on.

B. Might be true but in this case it is not. The lines (to be parallel) have to have the same number in front of the x. These two lines do when you divide through by 5. But the y intercept has to be different. That is not so in this case. So B is incorrect.

A is your answer. If you divide through by 5 on the second one, you get the first one. They are identical.

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2 years ago

What does congruent mean

AysviL [449]

Answer:

If two figures have the same size and shape, then they are congruent. so if they have the same shape and size even if they are flipped or mirrored they are congruent.

Step-by-step explanation:

The term congruent is often used to describe figures like this, the pictire below. if you look up congruent shapes and look at many examples that will definitely help you understand alot more better what congruent means.