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Nady [450]
2 years ago
9

Find the area and the circumference of a circle with diameter 5 cm.

Mathematics
1 answer:
Lyrx [107]2 years ago
4 0

The Circumference of the circle is
15.7

and Area is
19.625
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What is 5(8)-2(15-8)​
luda_lava [24]

Answer:

This is the answer of your question. ☺☺

Step-by-step explanation:

40 -2*7

40 -14

26

7 0
2 years ago
Gabriella is building a garden that is 3.6 m long by 7.77 m wide. What is the area of her garden?
attashe74 [19]
Answer: 27.97 m^2

Explanation:
Area = Length x Width
Area = 3.6m x 7.77m
Area = 27.97 m^2
7 0
2 years ago
LOTS OF POINTS <br> Simplify the expression by factoring, showing the steps in your work
julia-pushkina [17]

Answer:

\frac{3x+7}{4x+1}

Step-by-step explanation:

\frac{12x^2+31x+7}{16x^2+8x+1}

First you factor 12x^2+31x+7:

=\left(12x^2+3x\right)+\left(28x+7\right)

Then you factor out 3x from 12x^2+3x:

12x^2+3x

=12xx+3x

=3\cdot \:4xx+3x

=3x\left(4x+1\right)

Then you factor out 7 from 28x+7:

28x+7

=7\cdot \:4x+7

=7\left(4x+1\right)

=3x\left(4x+1\right)+7\left(4x+1\right)

Factor out common term 4x+1:

=\left(4x+1\right)\left(3x+7\right)

\frac{\left(4x+1\right)\left(3x+7\right)}{16x^2+8x+1}

Factor 16x^2+8x+1:

=4^2x^2+8x+1

=4^2x^2+8x+1^2

=\left(4x\right)^2+8x+1^2

=\left(4x\right)^2+2\cdot \:4x\cdot \:1+1^2

Use the perfect square formula:

=\left(4x+1\right)^2

\frac{\left(4x+1\right)\left(3x+7\right)}{\left(4x+1\right)^2}

Cancel out common factor 4x+1:

=\frac{3x+7}{4x+1}

8 0
2 years ago
One pencil weigh fifteen grams. What is the weight of eight pencils?
artcher [175]

Answer:

120 grams

if they are all the same size

8 0
1 year ago
If you change the slope in the equation y= 5x + 7 to y = 2x + 7 how will its graph change?
Anuta_ua [19.1K]
If we see an equation in the form y=mx+c (where m and c are just some numbers), but the important thing is that the left hand side is "y" and not "2y" or "3y", then the m is the slope.

So y=5x+7 has a slope of 5 (the number before the x)
And y=2x+7 has a slope of 2 (the number before the x)

So as you move from left to right, the one with greater slope will increase y value faster. Just like if you were climbing two mountains. If you went for 1 kilometre up a really steep mountain, you would be higher up than if you went for 1 kilometre up a less steep mountain.

Another way of saying this is that by changing an equation from  slope 5 (steep) to slope=2 (less steep), then "It will increase at a slower rate than before"

Answer B
6 0
2 years ago
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