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2 years ago

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Rubin has 6 rolls of pennies containing 50 coins each, 5 rolls of nickels containing 40 coins each, 4 rolls of dimes containing

50 coins each, and 3 rolls of quarters containing 40 coins each. How much money does he have? A. $68.40 B. $8.20 C. $17.50 D. $63.00

1 answer:

Anuta_ua [19.1K]2 years ago

4 0

<h2>Answer</h2>

A po pa brainliest

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What is the volume of a cylinder with base radius 4 and height 5?

Jobisdone [24]

Answer:

251.2 units³ ; 80π units³

Step-by-step explanation:

Volume of a Cylinder is: $V=\pi r^2 h$

'r' is the radius.

'h' is he height.

The cylinder has a base radius of 4 units and the height 5 units.

<h3>Using 3.14 for Pi:</h3>

$V=3.14*4^2*5\\V=3.14*16*5\\V= 50.24 * 5\\\boxed {V=251.2}$

The approximate volume is 251.2 units³.

<h3>In terms of pi:</h3>

$V=\pi 4^2*5\\\rightarrow 4^2=16\\V=\pi 16*5\\V=\pi 80\\\boxed {V=80\pi}$

The exact volume is 80π units³.

8 0

3 years ago

The length of a rectangle is 20 units more than its width. The area of the rectangle is x4−100.

Mice21 [21]

Answer:

$1. x^2-10$ because the area expression can be rewritten as $(x^2-10)(x^2+10)$ which equals $(x^2-10)((x^2-10)+20).$

Step-by-step explanation:

Area of the rectangle $=(x^4-100)$

$x^4-100=(x^2)^2-10^2\\$Applying difference of two squares: a^2-b^2=(a-b)(a+b)\\(x^2)^2-10^2=(x^2-10)(x^2+10)$

Since the length of a rectangle is 20 units more than its width.

$Width: x^2-10\\Length=x^2+10=x^2-10+20$

The correct option is therefore 1.

4 0

4 years ago

Read 2 more answers

If 8th graders sell 6 large boxes of cupcakes, would there be enough chocolate

Tju [1.3M]

Answer:

all depends on how many of each kinds of cupcake there is if there is 50 and over of chocolate cupcakes then yes there would be enough but if not then no there would not be enough

Step-by-step explanation:

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3 years ago

The length of a line segment is 13 units. One end point of the line segment is (-3,7). Find four points that could be the other

monitta

Answer:

( -16,7 ) , ( 10,7 ) , ( -3,20 ) and ( -3,-6 )

Step-by-step explanation:

We are given a line segment with one end point ( -3,7 ) and length 13 units.

So, there are many possibilities for the other end points.

Four of them are:

A. 13 units left i.e. ( -3-13,7 ) = ( -16,7 )

B. 13 units right i.e. ( -3+13,7 ) = ( 10,7 )

C. 13 units up i.e. ( -3,7+13 ) = ( -3,20 )

D. 13 units down i.e. ( -3,7-13 ) = ( -3,-6 ).

So, the other four end points could be ( -16,7 ) , ( 10,7 ) , ( -3,20 ) and ( -3,-6 ).

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3 years ago

The test results for 4 students are: 96, 83, 78, and 83. If one more student's test score of 87 is added, what would increase? H

Alex

Well the average would change from 85 to 85.4

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3 years ago