3 years ago

Work out the area of a semi circle take pi to be 3.142 and five your answer to two decimal places

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

7 0

Answer:

what are the measurements of the semi circle

Step-by-step explanation:

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H(x)=-2x-5, find h(-2)

Vedmedyk [2.9K]

Answer:

h(-2) = -1

Step-by-step explanation:

h(x)=-2x-5

Let x= -2

h(-2)=-2*-2-5

= 4 -5

h(-2) = -1

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3 years ago

The segments in each figure are tangent to the circle. Find each length.

zubka84 [21]

The tangents are equal length, so
.. 8x = x^2
We presume their length is not zero, so we can divide by x to get
.. 8 = 2x
.. 4 = x

Then the length of each tangent is 8*4 = 32 units.

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3 years ago

Find the area and the circumference of a circle with a diameter 8yrd.

nalin [4]

Answer:

Part 1) The area of the circle is $A=50.24\ yd^2$

Part 2) The circumference of the circle is $C=25.12\ yd$

Step-by-step explanation:

step 1

The area of a circle is equal to

$A=\pi r^{2}$

we have

$r=8/2=4\ yd$ ---> the radius is half the diameter

$\pi =3.14$

substitute

$A=(3.14)(4)^{2}$

$A=50.24\ yd^2$

step 2

The circumference of a circle is equal to

$C=\pi D$

we have

$D=8\ yd$

$\pi =3.14$

substitute

$C=(3.14)8$

$C=25.12\ yd$

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3 years ago

Write the equation of a line that is parallel to y=6x and that passes through the point (-7,1)

Anna35 [415]

Answer:

so y=6x+43

Step-by-step explanation:

Slope is 6, so using y=mx+b

1=6(-7)+b, b = 43

so y=6x+43

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3 years ago

Can someone help me understand this pls? (Provide an explanation)

Tpy6a [65]

Answer:

fales

Step-by-step explanation:

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2 years ago