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3 years ago

Al sumar 2x+5y-4z+9 y 2x-4y+6 se obtiene?

Mathematics

1 answer:

Ilia_Sergeevich [38]3 years ago

8 0

Answer: (Responder)

4x + y + 15 – 4z

Step-by-step explanation: (Explicación paso a paso)

(2x + 5y – 4z) + (9 + 2x – 4y + 6)

Group Like Terms (Agrupar términos similares)

2x + 2x + 5y – 4y – 4z + 9 + 6

Add Similar Elements (Agregar elementos similares)

4x + 5y – 4y – 4z + 9 + 6

4x + y – 4z + 9 + 6

Add The Numbers (Suma los números)

4x + y + 15 – 4z

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Points (0,0) and (3,3) lie on line k. What is the slope of the line perpendicular to k?

mixas84 [53]

Answer:

-1

Step-by-step explanation:

(0, 0) and (3, 3)

To find slope:

3-0/3-0 = 3/3 = 1

Since it's looking for the perpendicular slope, you just do the opposite of 1.

Which is -1.

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4 years ago

What is the measure of angle z in this figure?<br><br><br><br> Enter your answer in the box.

rjkz [21]

<z = 180 - 43
<z = 137

answer
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4 years ago

Raul is making a scale model of an airplane that has a wingspan of 44 feet. If Rauls scale model is 1/16 the size of the actual

KATRIN_1 [288]

You would divide 44 by 16 so the wing span is 2.75 ft.

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3 years ago

Read 2 more answers

How can we find the measure of an exterior angle if we know the measurement of an interior angle

Alik [6]

Step-by-step explanation:

Put the interior angle equal to 180.

It would look something like this:

x+45=180

-45 -45

180-45= 135 so the exterior angle would be 135!

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3 years ago

The ratio of the Areas of the bases of these cones is 9 to 4.

Lapatulllka [165]

Answer:

Step-by-step explanation:

This is something you learn in Geometry. Gotta love Geometry and all of its hundreds of rules for triangles and circles and all that good stuff!!

The rule for similar figures is

ratio of perimeter (one-to-one)-->area (square the one-to-one)-->volume (cube the one-to-one).

We are given area. You CANNOT CUBE THE AREA MEASURES TO GET TO THE VOLUME!! You have to find the one-to-one first and then go forward from there.

If the area is the one-to-one squared, then

$\frac{\sqrt{9} }{\sqrt{4} }=\frac{3}{2}$

The one-to-one is 3:2. To get to the volume now, cube those one-to-one values:

$\frac{3^3}{2^3}=\frac{27}{8}$

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3 years ago