4 years ago

PLEASE HELP ASAP!!!

Mathematics

1 answer:

34kurt4 years ago

3 0

Sadie wrote the expression correctly. She used the associative property correctly.

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Consider the given right triangle. If a=20 and b=20, then angle B=

gtnhenbr [62]

Answer:

Angle B is 45°

Step-by-step explanation:

Since a and b are both of length 20, this is an isosceles right triangle, and the angle opposite side b must be 45°.

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4 years ago

Guys can someone help me with calculations fo my overall average?

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3 years ago

What is the least common denominator between 27, 48, and 66

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3 years ago

Help me pls and ty !

Naya [18.7K]

Answer:

$a=2.6-3.4b$

Step-by-step explanation:

So we have the equation:

$2.2a+3.4b=1.2a+2.6$

And we want to solve for a.

So, subtract 1.2a from both sides:

$(2.2a+3.4b)-1.2a=(1.2a+2.6)-1.2a\\1a+3.4b=2.6$

Now, subtract 3.4b from both sides:

$(a+3.4b)-3.4b=2.6-3.4b\\a=2.6-3.4b$

And that's our answer :)

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3 years ago

A rocket is launched from a tower. The height of the rocket, y in feet is related to the time after launch, x in seconds, by the

gizmo_the_mogwai [7]

Step-by-step explanation:

The height of the rocket y in feet is related to the time after launch, x in seconds, by the given equation i.e.

$y=-16x^2+165x+78$ ......(1)

It is required to find the maximum height reached by the rocket. For maximum height put $\dfrac{dy}{dx}=0$ .

So,

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Put x = 5.15 in equation (1).

$y=-16(5.15)^2+165(5.15)+78\\\\y=503.39\ m$

So, the maximum height reached by the rocket is 503.39 m.

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4 years ago