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3 years ago

Which of the graphs below represent a function?

Mathematics

1 answer:

DanielleElmas [232]3 years ago

7 0

Answer:

A and B

Step-by-step explanation:

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Y is between X and Z on a line. XZ = 15 and XY = 10. What is the length of YZ?

Mariulka [41]

Answer:

Step-by-step explanation:

if xz is 15 and xy is 10 then we can infer that z is 10 and x is 5

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3 years ago

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Lera25 [3.4K]

Answer:

Step-by-step explanation:

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3 years ago

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In the triangle ABC , Angle A = 46° and Angle B = 83°. How large is the exterior angle at C?

lisabon 2012 [21]

Answer:

180 - 46 - 83 = 51 is the measure of angle C

the exterior angle at angle C, and angle C, are supplementary. since angle C is 51 because of the interior angle triangle sum theorem, then the exterior angle is: 180 -51 = 129 degrees.

Step-by-step explanation:

I hope this helps :)

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3 years ago

What is the shaded portion of the circle

blagie [28]

Answer:

$(5\pi-11.6)\ ft^{2}$

Step-by-step explanation:

we know that

The area of the shaded region is equal to the area of the sector minus the area of the triangle

step 1

Find the area of the circle

the area of the circle is equal to

$A=\pi r^{2}$

we have

$r=5\ ft$

substitute

$A=\pi (5)^{2}$

$A=25\pi\ ft^{2}$

step 2

Find the area of the sector

we know that

The area of the circle subtends a central angle of 360 degrees

by proportion find out the area of a sector by a central angle of 72 degrees

$\frac{25\pi}{360}=\frac{x}{72}\\ \\x=72*25\pi /360\\ \\x=5\pi\ ft^{2}$

step 3

Find the area of triangle

The area of the triangle is equal to

$A=\frac{1}{2}(2.9+2.9)(4)= 11.6\ ft^{2}$

step 4

Find the area of the shaded region

Subtract the area of the triangle from the area of the sector

$(5\pi-11.6)\ ft^{2}$

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3 years ago

What did the magician do when he lost his temper?

Annette [7]

I have no idea what did he do

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3 years ago