2 years ago

Decide whether this statement is "always, sometimes, or never"

Mathematics

1 answer:

Lostsunrise [7]2 years ago

6 0

The answer is sometimes, only if the trapezoid is an isoceles trapezoid.

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Find the area of each sector.

sergey [27]

Answer:

D. $\frac{525\pi}{8}$ m²

Step-by-step explanation:

Area of the sector = ½*r²∅

Where,

Radius (r) = 15 m

Angle in radians (∅) = $\frac{7\pi}{12}$

Plug in the values into the equation

Area of sector = $\frac{1}{2} * 15^2 * \frac{7\pi}{12}$

Area of sector = $\frac{1}{2} * 225 * \frac{7\pi}{12}$

Area of sector = $\frac{1*225*7\pi}{2*12}$

Area of sector = $\frac{1,575\pi}{24}$

Simplify

Area of sector = $\frac{525\pi}{8}$

5 0

3 years ago

Here is a list of numbers.

pychu [463]

Answer:

Range - 9

Mean - 16

Step-by-step explanation:

I thinkk

6 0

3 years ago

The kinetic energy k of an object in joules is given by the formula k=1/2mv² where m is the object's mass in kilograms and v is

Tamiku [17]

Answer:

192000 J

Step-by-step explanation:

k = 1/2 mv²

48000 = 1/2 x m x (20)²

48000 = 200m

m = 240 kg

new k

k = 1/2 x 240 x 40²

k = 192000 J

5 0

2 years ago

What is the perimeter of a triangle with sides<br> 14 inches, 8 inches, and 16 inches in length?

slamgirl [31]

Answer:

38 inches

Step-by-step explanation:

just add them all together.

4 0

3 years ago

Which pair of equations can be used to solve for x in PQR?

almond37 [142]

Answer:

Step-by-step explanation:

sin57° = $\frac{opposite}{hypotenuse}$ = $\frac{PQ}{PR}$ = $\frac{x}{18}$

∠ P = 180° - (90 + 57)° ← sum of angles in triangle

∠ P = 180° - 147° = 33° , then

cos33° = $\frac{adjacent}{hypotenuse}$ = $\frac{PQ}{PR}$ = $\frac{x}{18}$

Thus the 2 ratios used to solve for x are A

7 0

3 years ago