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3 years ago

Negative six plus twenty-one equal what

Mathematics

2 answers:

natali 33 [55]3 years ago

5 0

Answer:

Step-by-step explanation: you can move around the equation from -6+21

to 21-6 and still get the same answer

wlad13 [49]3 years ago

3 0

Answer:

-6+21 = 15

15 is the answer because you subtract and then put the greater no. sign.

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5√48-4√27-2√108+√147

irakobra [83]

Answer:

$3\sqrt{3}$

Step-by-step explanation:

8 0

3 years ago

Lines l and m are parallel

soldi70 [24.7K]

Answer:

m∠ABC = 15°

Step-by-step explanation:

Given

m∠ABC = x°
m∠BCD = 25°
m∠CDE = 55°
m∠DEF = 3x°

Add two more parallel lines passing through points C and D.

Consider alternate interior angles formed by the four parallel lines.

The angles between the two middle lines are equal to:

m∠BCD - m∠ABC = m∠CDE - m∠DEF

Substitute values and solve for x:

25 - x = 55 - 3x
3x - x = 55 - 25
2x = 30
x = 15

m∠ABC = 15°

4 0

3 years ago

A cube has a volume of 1000 cubic feet. What us the edge length of the cube?

Ainat [17]

So volume of a cube=edge legnth cubed so take the cube root of 1000 and get 10
the side legnth is 10 feet

7 0

3 years ago

Help please I will give you the brainliest

luda_lava [24]

Answer:

The area of a triangle is defined as the total region that is enclosed by the three sides of any particular triangle. Basically, it is equal to half of the base times height, i.e. A = 1/2 × b × h.

Step-by-step explanation:

6 0

3 years ago

If y = 9 inches, z = 14 inches, h = 5 inches, and w = 4 inches, what is the area of the object?

vekshin1

Answer:

126

Step-by-step explanation:

7 0

1 year ago