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Fynjy0 [20]
2 years ago
7

Solve the system. explain what method you chose 5x+2y=17 x-2y=8

Mathematics
1 answer:
victus00 [196]2 years ago
6 0

Answer:

2.7x+1=-3

Step-by-step explanation:

Solve for x

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If ∠A and ∠B are supplementary and m∠A = 37°45', then m∠B = ______.
xenn [34]

Answer: 142°15'

Explanation:

Supplementary angles are angles that add up to make a straight angle (180^{\circ}).

Therefore, we must find the angle ∠B such that

∠A + ∠B = 180° (1)

We know that ∠A = 37°45', so we can re-arrange equation (1) to find the magnitude of ∠B:

∠B = 180° - ∠A = 180° - 37°45' = 142°15'

So, the correct answer is

142°15'

6 0
3 years ago
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Can you help me to solve this​
Ber [7]

Answer:

\frac{4a-2}{2a+1}

Step-by-step explanation:

Factorise the numerator and denominator

8a² - 2 ← factor out 2 from each term

= 2(4a² - 1) ← 4a² - 1 is a difference of squares

= 2(2a - 1)(2a + 1)

4a² + 4a + 1 ← is a perfect square

= (2a + 1)²

Thus

\frac{8a^2-2}{4a^2+4a+1}

= \frac{2(2a-1)(2a+1)}{(2a+1)(2a+1)} ← cancel (2a + 1) on numerator/ denominator

= \frac{2(2a-1)}{2a+1}

= \frac{4a-2}{2a+1}

3 0
3 years ago
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If A cylinder has a radius of 3in and a height of 5in, what would the answer be?
tino4ka555 [31]

Answer:

141.37

Step-by-step explanation:

3 0
2 years ago
Can you guys help me with Unit 3 mixed review???¿
Gwar [14]
7. 335*0.2=67

8. 4.5/0.6=7.5

9. A

Hope this helps!
4 0
3 years ago
I really need help on this
laila [671]

Answer:

its B

Step-by-step explanation:

math  way

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3 years ago
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