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3 years ago

I need help on this one please

Mathematics

1 answer:

saw5 [17]3 years ago

6 0

Answer:

Step-by-step explanation:

When looking at the number line, we can see the distance between A and B is one unit

A |-2| + |-1| = 2+1 =3 That is not 1 unit

B 2-1 =1 that is 1 unit

C -2 + -1 = -3 that is not 1 unit

D |-1| - (-2) = 1 + 2 =3 that is not 1 unit

Even though it says all expressions, there is only 1 that shows a distance of 1 unit

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Solve the math problem

zalisa [80]

Answer:

$\frac{4w {}^{8} }{9m {}^{4} }$

Step-by-step explanation:

separate with like terms

$\frac{4}{9} , \: \frac{w {}^{9} }{w} \: and \: \: \frac{m {}^{5} }{m {}^{9} }$

the first fraction can be left alone as it can't be simplified any further

the second fraction can be written as w⁹ ÷ w¹ , when the bases are the same and division is involved subtract the powers: 9 - 1 = 8, so it's simplified to w⁸

the third fraction can be written as m⁵ ÷ m⁹, subtract the powers: 5 - 9 = -4, so it's simplified to m⁻⁴

${m}^{ - 4} = \frac{1}{m {}^{4} }$

putting it together:

$\frac{4w {}^{8} }{9m {}^{4} }$

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2 years ago

Solve and check equation 20 = 2r - 3r + 10

Andreas93 [3]

2r-3r+10=20

Move all terms to the left:

2r-3r+10-(20)=0

add all the numbers together, and all the variables

-1r-10=0

move all terms containing r to the left, all other terms to the right

-r=10

r=10/-1

r=-10

7 0

3 years ago

If you can help please do! Thank you!

Aleks [24]

Answer:

see explanation

Step-by-step explanation:

The diagonals of a parallelogram bisect each other , then

CO = OA = b

DO = OB = a

(a)

CA = CO + OA = b + b = 2b

(b)

DC = DO + OC = a - b

(c)

CB = CO + OB = b + a = a + b

7 0

2 years ago

Please help this is due in 10 minutes

mafiozo [28]

Answer:

the answer is 4.

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3 years ago

Can someone help me out? Pls it’s urgent!!! ASAP! (Geometry)<br> “Complete the proof”

Nikitich [7]

1) $\overline{WX} \cong \overline{UY}$ , $\angle YXZ \cong \angle XYZ$ (given)

2) $\overline{XY} \perp \overline{XY}$ (reflexive property)

3) $\triangle WXY \cong \triangle UYX$ (SAS)

4) $\overline{WY} \perp\overline{ UX}$ (CPCTC)

6 0

2 years ago