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3 years ago

If the diameter of a circle is 9 cm, then its circumference is 56.52 cm. True or False

Mathematics

1 answer:

Georgia [21]3 years ago

6 0

Answer: true

Step-by-step explanation: first you divide its circumference by pi, which you then get 17.990. Round it to 18. Then use the diameter (18) and divide it by 2. You get 9.

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What can you do to get the x alone on the left side of the equation? Fill in the blanks below to show what you would do. Then, s

Phantasy [73]

Answer:

Step-by-step explanation:

Equation: 82.5 + 2x = 338.5

--------------------------------------------------

2x ÷ _2__ = 256 ÷ _2__

x = _128__

7 0

2 years ago

How do you find the perimeter

lukranit [14]

The perimeter is 86 m.

When you add the 18 with the 11, you get the length of the bottom side, which is 29. When you add the nine and the 6, you get the length of the left side, which is 15. Now add everything together.

18 + 6 + 11 + 9 + 29 + 15 = 86 m

Hope I helped. Good luck!! : )

4 0

3 years ago

A company produces metal slabs for industrial use. The slabs come in three thicknesses: 5in, 10in., 15 in. The weights of each t

Dimas [21]

5, 10 ,15

divide each by 5

1,2, 3

so the ratios should be 1,2,3

Metal 1 : divide by 150

1,2,4

Metal 2 divide by 130

1,2,3

Metal 3 divide by 310

1,2,3

Metal 4 divide by 140

1,2,3

Metal 1 is not proportional

Choice A

4 0

3 years ago

Find s(11) when s(n)=N^2

maks197457 [2]

Sub 11 for n
S(11)=11^2
S(11)=121

4 0

3 years ago

Which graph corresponds to the table? Giving brainliest to accurate answer.

diamong [38]

Answer:

Last graph that slopes upwards from left to right and that has an y-intercept of -1

Step-by-step explanation:

let us pick some points!(you can chose any two)

when x =3 , y = 14 : helps us get points (3,14)

when x =1 , y = 4 : helps us get points (1,4)

so we find the gradient using the two points:

$gradient \ =\frac{14-4}{3-1} =\frac{10}{2} \\$

we now use gradient 10/2 and point (1,4) to find the equation of the line:

$\frac{10}{2} =\frac{y-4}{x-1} \\2(y-4)=10(x-1)\\2y-8=10x-10\\2y=10x-10+8\\2y=10x-2\\y=5x-1$

from the equation of the line found we are able to find the y- intercept of the line is -1 and that the line has a positive gradient thus should slope upwards from left to right.

From the pictures you posted, we pick the last graph as it seem to slope upwards from left to right and has the line cutting y axis at around -1

5 0

2 years ago