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ASHA 777 [7]
3 years ago
8

A rectangle has an area of 21x + 81 square units. If the width is 3 units, what is the length of the rectangle

Mathematics
1 answer:
rosijanka [135]3 years ago
6 0
If x=3 then the answer is 144
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Plz plz help me I really need help
arlik [135]
Circumference of a circle is 2πr where r is radius of a circle.

2*3.14*7=43.96 almost 44 inches in whole number where π=3.14
4 0
3 years ago
Read 2 more answers
Simplify the expression: 15w-6w+14w^2
Darina [25.2K]
=<span><span>14<span>w2</span></span>+<span>9<span>w hope this helps
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5 0
3 years ago
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Examine the diagram. A triangle has angles A, 15 degrees, 80 degrees. The exterior angle to angle A is B. What is the sum of the
QveST [7]

Answer:

m<A = 30degrees

m<B = 70degrees

Step-by-step explanation:

Find the diagram attached

From the diagram;

m<A + 150 = 180

m<A = 180 - 150

m<A = 30degrees

Also since the sum of angles in a triangle is 180degrees, hence;

m<B+m<A + 80 = 180

m<B+30+80 = 180

m<B+110 = 180

m<B = 180 - 110

m<B = 70degrees

4 0
3 years ago
Read 2 more answers
Figures A and B at right are similar. Assuming that figure A is the original figure, find the scale factor and find the lengths
AnnZ [28]

The scale factor is: 1/5.

The missing sides of figure B are: 2.4, 3.6, and 4.

<h3>How to find Scale Factor?</h3>

Scale factor = dimension of new figure / dimension of original figure

The polygons given are shown in the diagram attached below.

Figure A is the original figure

Figure B is the new figure.

x, y, and z has been used to mark the missing sides of figure B.

One dimension of original figure = 15

Corresponding dimension of the new figure = 3

Scale factor = new/original = 3/15

Scale factor = 1/5

To find the missing sides of figure B, multiply each corresponding side lengths of Figure A by the scale factor:

x = 12 × 1/5 = 2.4

y = 18 × 1/5 = 3.6

z = 20 × 1/5 = 4

In summary:

The scale factor is: 1/5.

The missing sides of figure B are: 2.4, 3.6, and 4.

Learn more about scale factor on:

brainly.com/question/2826496

3 0
3 years ago
Simplify 30! / 28!<br><br> Please post the correct answer. Don’t send links
viva [34]
The answer is
3 divided by 2
Hope this helped
5 0
3 years ago
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