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iogann1982 [59]
3 years ago
7

What is the coefficient of x4 in the expansion of (3x + 1)??

Mathematics
1 answer:
bulgar [2K]3 years ago
7 0
It would be O 945 that is the answer
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Sally has six more 34 cent stamps than 52 cent stamps. If her stamps amount to 11.50 how many of each stamp does she have?
Yuliya22 [10]

Let x be the number of 52 cent stamps that Sally has and let y be the number of 34 cent stamps that she has.

Then,

52x + 34y = 1150 --- (1)

Also, she has six more 34 cent stamps than 52 cent stamps.

Therefore, y = x + 6

(1) becomes

52x + 34(x + 6) = 1150

52x + 34x + 204 = 1150

86x + 204 = 1150

86x = 1150 - 204

86x = 946

x = 11

and y = 11 + 6 = 17

Hence, Sally has eleven 52 cent stamps and seventeen 34 cent stamps.

6 0
3 years ago
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Use the commutative property to rewrite the expression x + 16 *<br><br><br> please help me
valentinak56 [21]

Answer:

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16+x

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2 years ago
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A rectangle has a length of twenty one cm and a diagonal of twenty nine cm. How wide is the rectangle?
GuDViN [60]

The width of the rectangle become 20 cm.

According to the statement

we have to find the width of the rectangle.

So, For this purpose, we know that the

Rectangle is a parallelogram all of whose angles are right angles.

According to the information:

A rectangle has a length of 21 cm and a diagonal of 29 cm.

Here we use the this formula

d² = l² + w²

So, Substitute the values

29² = 21² + w²

841 = 441 + w²

Now, solve it then

w² = 400

Solve the square root then value becomes

w = 20 cm.

The width of the rectangle become 20 cm.

So, The width of the rectangle become 20 cm.

Learn more about Rectangle here

brainly.com/question/19819849

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3 0
1 year ago
Help me please i don’t know the answer
FromTheMoon [43]

Answer:

its12

Step-by-step explanation:

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Pls. Help me solve with this math problem
Alchen [17]
I think this is the answer...

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