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2 years ago

Hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhjnrby

Mathematics

1 answer:

pishuonlain [190]2 years ago

3 0

Answer:

hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhlb

Step-by-step explanation:

whats your question

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Factor 7(h+k)^2-21(h+k)

VARVARA [1.3K]

7(h+k)(h+k- 3) if this is the answer you're looking for this is what I got so. Good luck

5 0

3 years ago

Erika paid a self-employment tax last year. She calculated the self-employment tax for different amounts of net earnings and rec

zhuklara [117]

Answer:

Step-by-step explanation:

because i got a 100

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2 years ago

An airplane is flying at a speed of 500 mi/h at an altitude of one mile. The plane passes directly above a radar station at time

d1i1m1o1n [39]

Answer:

a) $s=\sqrt{1+d^2}$

b)d(t)=500t

c) $s(t) =\sqrt{1+250000t^2}$

Step-by-step explanation:

d = Horizontal distance

s = the distance between the plane and the radar station

The horizontal distance (d), the one mile altitude, and s form a right triangle.

So, use Pythagoras theorem

$Hypotenuse^2=Perpendicular^2+Base^2$

$s^2=1^2+d^2$

a) $s=\sqrt{1+d^2}$

(b) Express d as a function of the time t (in hours) that the plane has flown.

$distance = speed \times time$

d(t)=500t

$s(t) =\sqrt{1+d^2}$

using b

$s(t) =\sqrt{1+(500t)^2}\\s(t) =\sqrt{1+250000t^2}$

6 0

2 years ago

Solve this equation.

Ymorist [56]

Answer:

A, B, and C

Step-by-step explanation:

The answer for 15.2+w=19.75+4.2 is w=8.75

3w=22.25+4 is w=8.75

The next equation is w= -8.75

The last equation is w= 8.75

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2 years ago

Triangle PQR is similar to triangle XYZ. What is the perimeter of triangle XYZ?

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Triangle PQR is similar to triangle XYZ. What is the perimeter of triangle XYZ? Where is the picture

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2 years ago