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Morgarella [4.7K]
3 years ago
11

(2y+9)+(3d+5)=? *simplify your answer*

Mathematics
2 answers:
netineya [11]3 years ago
7 0

Answer:

2y + 3d +14\\2(y+7)+3d

Step-by-step explanation:

We remove the bracket and rearrange the numbers to add them. Only similar variables can be added together.

(2y+9)+(3d+5)\\2y+9+3d+5\\2y + 3d + 9 +5\\2y + 3d + 14\\2(y+7)+3d

kkurt [141]3 years ago
3 0

Answer:

2y + 3d + 14

Step-by-step explanation:

(2y+9) + (3d+5)

First, let us clear the bracket. In doing so, we obtained the following:

2y + 9 + 3d + 5

2y + 3d + 14

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Perform the operation. (3x^2+4)-(-5x^2+4x-1)
Galina-37 [17]

Answer:

8x^2-4x+5

Step-by-step explanation:

(3x^2+4)-(-5x^2+4x-1)

Let's start by removing the parentheses.

3x^2+4-(-5x^2)-4x+1

Now let's reorder the equation to make it easier to combine like terms.

3x^2+5x^2-4x+1+4

Combine like terms.

8x^2-4x+5

7 0
3 years ago
Simplify-7(3x) + 2(3x - 2)<br><br>I'll give brainliest ​
Sveta_85 [38]

Answer:

-15x-4

Step-by-step explanation:

-21x + 6x-4

-15x-4

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3 years ago
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Find the total surface area for the following. <br>height-3m, length-300 cm and width- 2 cm.​
Delvig [45]

Answer:

Step-by-step explanation:

So the Dimensions are:

Height: 300cm

Length: 300cm

Width: 2cm

SA = 2(H*L)+2(H*W)+2(L*W)

= 180000 + 1200 + 1200

= 182400 cm^{2} OR 18.24m^{2}

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If the variance is 28 kg2 what is the standard deviation?
ikadub [295]

Answer:

The standard deviation is 5.29 kg.

Step-by-step explanation:

The standard deviation is the square root of the variance. Mathematically, we have that:

S(X) = \sqrt{V(X)}

In this problem, we have that:

V(X) = 28

So

S(X) = \sqrt{V(X)}

S(X) = \sqrt{28}

S(X) = 5.29

The standard deviation is 5.29 kg.

7 0
3 years ago
Please help me ASAP easy problem giving brainlist!!
never [62]

Answer:

x ≥ 1

Step-by-step explanation:

Since it's a closed circle x could also be equal to 1. Also, since the arrow is pointing away from 1 the answer of x is greater than 1, therefore the answer is x ≥ 1.

8 0
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