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2 years ago

The diagram show a circle centre 0. write down the mathematical name of

Mathematics

1 answer:

Ksivusya [100]2 years ago

5 0

Answer:

(a) sector

(b) chord

Step-by-step explanation:

<h3>sector: a sector in a circle is enclosed by two radii and an arc.</h3>

<h3>chord: this is a straight line that divides the circle into two unequal parts</h3>

<h3>tangent: a tangent touches a circle in only one point without entering inside the circle.</h3>

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How much its 5+3+3×15=

AveGali [126]

=5 + 3 + 3 * 15
do multiplication first
=5 + 3 + 45
=8 + 45
=53

ANSWER: 53

Hope this helps! :)

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3 years ago

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How do you do inequalities

fgiga [73]

So some quick tips for inequalities:
**What you do to one side you HAVE TO do it to the other 2**
**If you ever divide a negative number past the inequality signs, the signs FLIP!!**
(e.g. 2>-5x>25)
-2/5 <x < -5

I hope that this has helped!

8 0

3 years ago

The object below was made by placing a cone on top of a cylinder. The base of the cone is congruent to the base of the cylinder.

Ber [7]

Answer:

Part 1) The volume of the object is $32\pi\ cm^{3}$ or $100.48\ cm^{3}$

Part 2) see the procedure

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

Part 1) What is the volume, in cubic centimeters, of the object?

we know that

The volume of the object is equal to the volume of the cylinder plus the volume of the cone

Find the volume of the cone

The volume of the cone is equal to

$V=\frac{1}{3}\pi r^{2} h$

we have

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

$h=3\ cm$

substitute the values

$V=\frac{1}{3}\pi (2^{2})(3)=4\pi\ cm^{3}$

Find the volume of the cylinder

The volume of the cylinder is equal to

$V=\pi r^{2} h$

we have

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

$h=(10-3)=7\ cm$

substitute the values

$V=\pi (2^{2})(7)=28\pi\ cm^{3}$

Part 2) Then explain how you found the volume of the total shape

The volume of the total shape is equal to the volume of the cylinder plus the volume of the cone

$4\pi\ cm^{3}+28\pi\ cm^{3}=32\pi\ cm^{3}$ ------> exact value

Find the approximate value of the volume

assume

$\pi=3.14$

$32(3.14)=100.48\ cm^{3}$

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3 years ago

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Find the state income tax deducted: gross pay of $978, state income tax 5%.

Helga [31]

$48.90

To find the income ta, find out how many times the income tax percentage goes into 100. Then divide that by whatever the starting amount is, and multiply by how many years the tax is either deducted or added<span />

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3 years ago

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Given f(x)=10-2x find f(7).<br><br> A=-4<br> B=3<br> C=7<br> D=56

Anestetic [448]

10 - 2(7)
10 - 14 = -4
A is the answer

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3 years ago