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3 years ago

Please answer questions 1-3

Mathematics

1 answer:

alexandr1967 [171]3 years ago

8 0

Base angle of isoseles triangle are equal then,

a)70°+70°+a=180°(sum of interior angle of triangle )

140°+a=180°

a=40°

b)50°+2d=180°

2d=130

d=130/2

d=65

c)28°+28°+x=180°

56°+x=180°

x=124

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What number is 2 more than the 1/4 mechanic code of 133

Luda [366]

I think you just do 133/4 -2 unless I’m mistaken

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3 years ago

PLEASE HELP ME, PAST DUE AND NEED TO TURN IN BY TOMORROW PLEASE!!!!

Gala2k [10]

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Step-by-step explanation:

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2 years ago

Rod is paid $85 to install a screen door and $115 to install a wooden door. In one week he installed 18 doors and was paid a tot

Rainbow [258]

Answer:Rod installed 7 screen doors

Step-by-step explanation:

Step 1

Let the number of screen door = x

And the number of wooden doors = y

since he installed 18 doors , we have that

screen door + wooden doors = 18

x + y = 18------ equation 1

Also the cost to install a screen door -= $85

and to install a wooden door = $115

And he was therefore paid a total of $1850

Therefore

85x + 115 y = $1860------- equation 2

Step 2----- Solving

x + y = 18------ equation 1

85x + 115 y = $1860------- equation 2

Multiplying equation 1 BY 85

85x + 85y= 1530------- equation 3

85x + 115 y = $1860------- equation 4

subtracting from equation 1 from (2)

115y- 85y= 1860-1530

30y=330

y = 330/30 = 11

To find x

x+ y=18

x= 18-y

x= 18-11= 7

Rod installed 7 screen doors and 11 wooden doors.

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3 years ago

What property is shown in 3x+4y+2+6y+3

True [87]

Answer:

Step-by-step explanation:

I think its substitution

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2 years ago

The radius of a circle is 5 feet. What is the circumference?

givi [52]

The answer is 31.42ft

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2 years ago

Please answer questions 1-3​

Please answer questions 1-3