2 years ago

Please help meeeee pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee and thankyouuuuuuuuuuuuuuuu

Mathematics

1 answer:

Nonamiya [84]2 years ago

4 0

Answer:

40$

Step-by-step explanation:

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When you solve the equation x + 1 = 2x for x, the solution is 1. 1) Square both sides of the equation, and verify that your solu

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Answer:

(x + 1)² = (2x)²

(1 + 1)² = (2(1))²

2² = 2²

4 = 4

(-1 + 1)² = (2(-13))²

(-12)² = (-26)²

Not true

x = -13 satisfies neither

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3 years ago

Explain how to form a linear combination to eliminate the variable y for this system. 2x - 3y = 3 5x + 2y = 17A)Multiply the fir

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multiply first by -5 and 2nd by 2
so that is B

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3 years ago

A pair of shoes costs $25 to make. This means that you need to charge a price of at least ___ just to cover your cost.

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3 years ago

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Marta hopes to have a test average of at least 90 by the end of the marking period. Her grades on the first four tests have been

Virty [35]

Answer:

Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.

Explanation:

Marks received by Marta in four tests = 86, 84, 97 and 89

Let mark received in fifth test be x

We have average of five test is more than or equal to 90

So we have

$\frac{86+84+97+89+x}{5} \geq 90\\ \\ 86+84+97+89+x\geq 450\\ \\ x\geq 94$

So Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.

5 0

3 years ago

Don’t understand someone explain please

makvit [3.9K]

Answer:

Sin A = 11/61

Step-by-step explanation:

Reference angle (θ) = A

opp = 11

Hyp = 61

Adj = 60

Sin θ = opp/hyp

Sin A = 11/61

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3 years ago