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3 years ago

3y-y please can you work it out

Mathematics

2 answers:

AnnyKZ [126]3 years ago

8 0

The two y’s are like term so it is possible to subtract. So 3y-y=2y

Musya8 [376]3 years ago

7 0

3y-y=2y because 3y is 3 separate ys together and if u take one y from 3ys u get 2y

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Need help with this. Show your steps so I could check my work and my answer.

andrezito [222]

Answer:

Step-by-step explanation:

The angle at C is 90 degrees, and BCD is a right triangle, so we can applythe Pythagorean theorem here -- 60²+m²=65², so 65²-60²=m²=625. The possible values for m are 25 and -25, and since m can't be negative, 25 is our answer as 25 is the square root of 625

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4 years ago

In the equation 3a+2(4a-1)=9 what is value of a ?

MrMuchimi

Here is the answer
I did it with steps
3a+2(4a-1)=9
3a+8a-2=9
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a=1

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4 years ago

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Gnesinka [82]

Answer:

B.22

Step-by-step explanation:

4+4+7+7=22

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3 years ago

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Karolina [17]

First convert all the units into millimetres.

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3 years ago

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What should be done to x^2 + 15x in order to create a perfect square?

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$\bf \qquad \textit{perfect square trinomial} \\\\ (a\pm b)^2\implies a^2\pm \stackrel{\stackrel{\text{\small 2}\cdot \sqrt{\textit{\small a}^2}\cdot \sqrt{\textit{\small b}^2}}{\downarrow }}{2ab} + b^2 \\\\[-0.35em] ~\dotfill$

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3 years ago