4 years ago

What is the sum?

Mathematics

2 answers:

Luda [366]4 years ago

5 0

Answer:

Last one

Step-by-step explanation:

E2020

Gwar [14]4 years ago

4 0

Startfraction 7 ice x + x squared endfraction

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What numbers are a distance of 2/3 unit from 1/2 on a number line? Select the locations on the number line to plot the points.

IRISSAK [1]

Answer:

- 0.167 < 0.5 ≤ 1.167

means 1/2 is -0.167 less

and 1/2 is equal to 1.167 when 2/3 is set to distance each way.

Step-by-step explanation:

we can evaluate what 2/3 equals by equating the number to decimal

0.33 = 1/3 so 0.667 = 2/3

We then just subtract and add to 1/2

0.5 + 0.667 = 1..167

0.5 - 0.667 = -0.167

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3 years ago

Which expression is equivalent to (-4y-x)-(y-9x) ?

777dan777 [17]

Answer:

-5y + 8x

Step-by-step explanation:

$(-4y-x)-(y-9x)\\\\-4y-x-(y-9x)\\\\\rightarrow-(y-9x)*-1=-y+9x\\\\-4y-x-y+9x\\\\-4y-y+9x-x\\\\\boxed{-5y+8x}$

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3 years ago

Cole found BC in ΔABC . His work is shown below. Identify the first step in which his work shows an error. A Step 1: 92 + 152

garik1379 [7]

Answer: A

Step-by-step explanation:

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3 years ago

Sum and difference tan(135+30)

Mumz [18]

$\tan(x+y)=\dfrac{\sin(x+y)}{\cos(x+y)}=\dfrac{\sin x\cos y+\sin y\cos x}{\cos x\cos y-\sin x\sin y}=\dfrac{\tan x+\tan y}{1-\tan x\tan y}$

So,

$\tan(135^\circ+30^\circ)=\dfrac{\tan135^\circ+\tan30^\circ}{1-\tan135^\circ\tan30^\circ}$

You should know that $\tan135^\circ=-1$ and $\tan30^\circ=\dfrac1{\sqrt3}$

Putting everything together,

$\tan(135^\circ+30^\circ)=\dfrac{-1+\dfrac1{\sqrt3}}{1-(-1)\left(\dfrac1{\sqrt3}\right)}=\dfrac{1-\sqrt3}{\sqrt3+1}=\sqrt3-2$

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4 years ago

3. the third one please answer ASAP write it on paper, please

pantera1 [17]

The answer is 1/3
To 4/5+3/15-2/3

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3 years ago

Read 2 more answers