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3 years ago

A.240 B.360 C.480 D.720

Mathematics

1 answer:

diamong [38]3 years ago

7 0

Answer is D. 720 Hope this helps

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Find the unknown angle in the following figures Please explain in step by step.

Sergio039 [100]

Answer:

130°

Step-by-step explanation:

the opposite angle just like in the diagram will always be the same value

then you must know that total angle in triangle must be 180° so the balance angle each 50° bcuz when the length is the same, the angle should be the same too.

to find X , 180-50=130

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3 years ago

In the polynomial below. -3 is one of the coefficients. 2x2 – 3x + 2

Juliette [100K]

Not sure what the question is so I'll answer

Answer: TRUE

-3 is the coefficient of the linear term of the polynomial 2x² - 3x + 2

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3 years ago

Find the mean for each set of data, weights of cats at a pet store in pounds: 5,4,10,7,6

Aleonysh [2.5K]

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Step-by-step explanation:

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3 years ago

Find the missing sides.

love history [14]

Answer:

Part 3)

$x=6\ units$

$y=3\ units$

Part 4) $x=18\sqrt{2}\ units$

Step-by-step explanation:

Part 3)

step 1

Find the value of x

In the right triangle of the figure we know that

The cosine of angle of 30 degrees is equal to the adjacent side to angle of 30 degrees divide by the hypotenuse

$cos(30\°)=\frac{3\sqrt{3}}{x}$

and remember that

$cos(30\°)=\frac{\sqrt{3}}{2}$

substitute

$\frac{\sqrt{3}}{2}=\frac{3\sqrt{3}}{x}$

Simplify

$x=(2*3)=6\ units$

step 2

Find the value of y

In the right triangle of the figure we know that

The sine of angle of 30 degrees is equal to the opposite side to angle of 30 degrees divide by the hypotenuse

$sin(30\°)=\frac{y}{x}$

and remember that

$sin(30\°)=\frac{1}{2}$

substitute

$\frac{1}{2}=\frac{y}{6}$

$y=6/2=3\ units$

Part 4) Find the value of x

Applying the Pythagoras Theorem

$x^{2} =18^{2} +18^{2} \\ \\x^{2} = 324+324\\ \\x^{2}=648\\ \\x=\sqrt{648}\ units$

Simplify

$x=18\sqrt{2}\ units$

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3 years ago

Korey is planning to open a comic book store near his home. After completing a population survey for 3,520 homes in a 5 mile rad

Lisa [10]

The is answer is definitely D, because he computed the total population of 3,320 in the survey of his targeted people that he specified which was grade school and high school. In order for his computation to work for his market analysis he used the radius of 5m and the 75% he wanted to achieve.

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3 years ago