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3 years ago

I’ll brainliest you please help me

Mathematics

2 answers:

LenKa [72]3 years ago

5 0

Answer:

x=62

y=45

Step-by-step explanation:

Umnica [9.8K]3 years ago

3 0

Answer:

x = 62°

y = 118°

Step-by-step explanation:

Since the sum of interior angles of any quadrilateral is 360°, all of the interior angles in this image will add up to 360°.

Since the shape of the trapezoid is symmetrical, x is equivalent to 62°.

This means 62 + 62 + x + x = 360°

(360-(62+62))/2 = 118°

118 + 118 + 62 + 62 = 360°

x = 62°

y = 118°

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In a circle with a radius of 3 ft, an arc is intercepted by a central angle of 2π3 radians. What is the length of the arc?

madreJ [45]

The correct question is
<span>In a circle with a radius of 3 ft, an arc is intercepted by a central angle of 2π/3 radians. What is the length of the arc?

we know that
in a circle
</span>2π radians -----------------> lenght of (2*π*r)
2π/3 radians--------------> X
X=[(2π/3)*(2π*r)]/[2π]=(2π/3)*r

the lenght of the arc=(2π/3)*3=2π ft

the answer is 2π ft

5 0

3 years ago

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What is the value of (-2.8)+0+(-2.6)+6.4

Sever21 [200]

(-2.8)+0+(-2.6)+6.4
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2 years ago

Aaron bought a set of plastic ice cubes with a mixture of water and air inside.

adoni [48]

Answer:

The volume of water and air inside the plastic ice cube is 3000 mm³

Step-by-step explanation:

* Lets described the figure

- It consists of two identical rectangular pyramids stuck together

in their bases

- The dimensions of the base are 15 mm and 20 mm

- The height of ice cube is 30 mm

∴ The height of each pyramid = 30 ÷ 2 = 15 mm

* Lets talk about the volume of the rectangular pyramid

- The pyramid has a rectangular base and 4 triangular faces

- We have formulas to calculate the volume of the pyramid.

- To find the volume, we use the formula V = (1/3)AH, where

A = area of the pyramid's base and H = height of the pyramid

∵ The dimensions of the base are 20 mm and 15 mm

∴ A = 20 × 15 = 300 mm²

- The height of the pyramid is 15 mm

∵ H = 15 mm

∵ V = 1/3(AH)

∴ V = 1/3(300 × 15) = 1500 mm³

- The ice cube made from two identical rectangular pyramids

∴ The volume of the ice cube = 2 × 1500 = 3000 mm³

- The volume of the water and the air inside the ice cube equal

the volume of the ice cube

* The volume of water and air inside the plastic ice cube is 3000 mm³

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3 years ago

70/6 in a mixed number

Arada [10]

6 can go into 70 11 times without having a remainder so the 11 goes on the outside as your whole number. Then you have 4 left over to get to 70 so 4 becomes your numerator. The 6 stays as your denominator. So you have

$11 \frac{4}{6}$

3 0

4 years ago

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A manufacture inspects 800 light bulbs and finds that 796 of them have no defects. What is the experimental probability that a l

BartSMP [9]

Answer:

The experimental probability that a light build chosen at random has no defects is 99.5 % or P(A)=0.995.

Step-by-step explanation:

let S be the sample space for the inspection of the light bulbs.

Therefore, n(s) = 800

let ' A ' be the event of no defects bulbs.

Therefore, n(A) = 796