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klasskru [66]
3 years ago
5

Find the missing values x and y

Mathematics
1 answer:
kvv77 [185]3 years ago
4 0
1) The supplement of 72° is 180°-72° = 108° . (bottom // with right secant)

2) (3z + 18)° = 108° ( in a para llelogram opposite angles are equal)
Then 3z+18 = 108 and 3z° = 90° → z = 30°

3) (3y)° = 108° (vertical angles) , 3y° = 108 and y = 36°

4) 3y = x° (corresponding angles) but 3y = 108, then x = 108°

(Mind you I am calculating the ∠ x, y, and z. To find the angles of the parallelogram replace x,y and z by their respective values

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6 red marbles out of 36 marbles
Andreyy89

Answer:

1/6

Step-by-step explanation:

P(red) = red/total

             =6/36

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3 years ago
Alexei wants to hang a mirror in his boat and put a frame around it. The mirror and frame must have an area of 19.25 square feet
zhuklara [117]

Let

x---------> the thickness of the frame in feet

At-------> Area of the mirror and the frame in square feet

we know that

At=19.25ft^{2} ------> equation 1

At=(3+2x)*(5+2x)\\ At=3*5+3*2x+5*2x+2x*2x\\ At=15+6x+10x+4x^{2} \\ At=4x^{2} +16x+15--------> equation 2

equate equation 1 and equation 2

19.25=4x^{2} +16x+15\\ 4x^{2} +16x+15-19.25=0\\ 4x^{2} +16x-4.25=0

therefore

the answer is the option

C. 4x2 + 16x - 4.25 = 0

5 0
3 years ago
Read 2 more answers
6. A prism has bases that are equilateral triangles with sides lengths of 10 inches and a length of 30 inches.
vova2212 [387]

Answer:

The volume of the prism is 1,299\ in^{3}

Step-by-step explanation:

we know that

The volume of the prism is equal to

V=BL

where

B is the area of the triangular base

L is the length of the prism

we have

L=30\ in

<em>Find the area of the base B</em>

The area of a equilateral triangle is equal to

B=\frac{1}{2}(10)^{2} sin(60\°)

B=25\sqrt{3}\ in^{2}

substitute

V=(25\sqrt{3})(30)=1,299\ in^{3}

4 0
3 years ago
What is the quotient of 7^-1/7^-2?<br> 1/343<br> 1/7<br> 7<br> 49
vazorg [7]

Answer:

7^-1/7^-2

7^(-1+2)=7^1=7

8 0
2 years ago
Helpppppppppppppppppppp
Ivan
I believe the answer is B and E
7 0
3 years ago
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