I’m so confused, please help.

Mathematics

1 answer:

grandymaker [24]4 years ago

4 0

i believe the answer is B

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A rectangular field measures 400m by 900m, what is the perimeter of the field:

Alina [70]

Answer:

a) 1790 b) 1.79

Step-by-step explanation:

a) you just add to get the perimiter 2(900) + 2(400) to get 1790

b) 1000 meters makes a kilometer so we divide by 1000 and get 1.79 for the kilometers

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3 years ago

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2x^3y + 18xy - 10x^2y - 90y Part A: Rewrite the expression so that the GCF is factored completely. (3 points)

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2y(x3+9x-10x2-45) not much to be taken as a common factor

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3 years ago

Given x= 5+ ✓16 name all possible values. a.) -11 b.) 1 c.) 9 d.) 21

cestrela7 [59]

The only correct answer is C.) 9

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3 years ago

A ball is thrown vertically in the air with a velocity of 90ft/s. Use the projectile formula h=−16t2+v0t to determine at what ti

Debora [2.8K]

Answer:

$t=1.7 \ sec\ , t=4.0\ sec$

Step-by-step explanation:

Vertical Throw

It refers to a situation where an object is thrown verticaly upwards with some inicial speed v_o and let in free air (no friction) until it completes its movement up and finally returns to the very same point of lauch. The only acting force is gravity

The projectile formula is given as

$h=-16t^2+v_0t$