3 years ago

Add the two expressions. 3z−43z−4 and 2z + 5

Mathematics

1 answer:

yuradex [85]3 years ago

3 0

Solution:

1) Gather like terms
(3z-43z+2z)

2) Simplify
-38z-4+5

3) Simplify
-38z+1

Done!

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Find sin angle∠ A. A. 3/5 B. 4/5 C. 1 D. 5/4

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Answer:

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Step-by-step explanation:

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Thus, we have:

$sin(A)=8/10=4/5$

The correct answer is B.

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3 years ago

Answers and work for answers please

larisa [96]

Answer:

1) 5 2) 6 3) 1.25 or -1.75

Step-by-step explanation:

1. x^2 - 25 = 0

x^2 - 25 = 0

First, add 25 to both sides!

x^2 = 25

Now square root both sides.

x = 5

2. (x-2)^2 = 16

First, square root both sides.

(x-2) = 4

Add 2 on both sides.

(x) = 6

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3. Quadratic Formula = -b ± $\sqrt{b^{2}-4ac }$ / 2a

Substitute in:

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Both forms:

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2 years ago