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alexandr1967 [171]
3 years ago
15

B

Mathematics
1 answer:
Anit [1.1K]3 years ago
5 0
i need some friends that would b nice
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Which is equivalent to (−2m + 5n)², and what type of special product is it?
ale4655 [162]
(-2m + 5n)²

(-2m + 5n) (-2m + 5n)
-2m(-2m + 5n) + 5n(-2m + 5n)

4m² - 10mn - 10mn + 25n²
4m² - 20mn + 25n²

4m²⇒ -2m * -2m
-20mn ⇒ 2(-2m)(5n)
25n² ⇒ 5n * 5n

<span>C. 4m² − 20mn + 25n²; a perfect square trinomial</span>
4 0
3 years ago
The radius of mars is about 3,390 kilometers. a spacecraft orbits 365 kilometers above the surface of mars. what is the distance
Dmitry [639]
We need to find the circumference of the orbit of the spacecraft. Let's first determine the radius of the orbit. From the planet's center, the spacecraft is 3,390 + 365 km away = 3,755 km. 

Circumference = 2πr
C=2(π)(3755 km)
C≈ 23593 km


6 0
3 years ago
Evaluate m2 if m =5 whats
SashulF [63]

Answer:

im confused but if i had to guess without any additional info i would think you mean  2m and m=5 so 2m=10 lmk if that's not what you meant

Step-by-step explanation:

8 0
3 years ago
(1/4)^-2 - (5^0 * 2) * 1^-1
Agata [3.3K]
14 is the answerrrrrrrrrrrrr
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3 years ago
Combine the like terms to create an equivalent expression:<br> -3z-z
sashaice [31]
It would be -4z
(: need more characters
4 0
3 years ago
Read 2 more answers
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