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2 years ago

Which of the following are like terms?

Mathematics

1 answer:

SVETLANKA909090 [29]2 years ago

5 0

Answer: D) 13y^25 and 2y^25

Like terms involve the same variables, and each of those variables must have the same exponents.

Another example of a pair of like terms would be 5x^3y^2 and 7x^3y^2. Both involve the variable portion "x^3y^2" which we can replace with another variable, say the variable z. That means 5x^3y^2 becomes 5z and 7x^3y^2 becomes 7z. After getting to 5z and 7z, it becomes more clear we have like terms.

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How can you move just one number to a different

alexandr1967 [171]

Answer:

Remove 9 from triangle B to A

Step-by-step explanation:

Given

Three Triangles

A: 1,2,3

B: 7,8,9

C: 4,5,6

Required

Make their sum equal

First, we need to calculate the sum in each triangles;

$A = 1 + 2 + 3$

$A = 6$

$B = 7 + 8 + 9$

$B = 24$

$C = 4 + 5 + 6$

$C = 15$

Remove 9 from triangle B to A

$A = 6 + 9$

$A = 15$

$B = 24 - 9$

$B = 15$

At this point, we have:

$A = 15$ $B = 15$ $C = 15$

<em>Hence, the solution is to remove 9 from B to A</em>

6 0

2 years ago

Work out the surface area of a sphere please help if u get it correct i’ll give h brainlest

Bingel [31]

Answer:

Surface area of sphere = 4πr²

r = radius

and radius = diameter/2

radius = 13/2

= 6.5cm

Surface area = 4 × π × 6.5

= 26 × π

= 81.68

= 81.7cm²

Hope this helps.

5 0

2 years ago

Please help!!<br> I don’t know what to do

ira [324]

Answer:

x = 14.4

Step-by-step explanation:

Similar means that the figures are proportional to each other. Because of this, we can form a problem. $\frac{9}{5}$ (the short side lengths) = $\frac{x}{8}$ (the long side lengths). Now we can solve this by cross-multiplying. If we multiply 9 · 8 we get 72, and 5 · x is 5x. 72 = 5x. Now divide both sides by 5. 72 ÷ 5 = 14.4. Therefore, x should be equal to 14.4. Does this make sense?