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Novosadov [1.4K]
3 years ago
5

What is the measure of angle A in the triangle? Enter your answer in the box. mZA=

Mathematics
2 answers:
Lilit [14]3 years ago
7 0

Answer:

mZA=50

Step-by-step explanation:

There is a total of 180 degrees in a triangle.

2x-10+70+x+30=180

3x+90=180

3x=90

x=30

Plug in 30 to the measure of angle A

2(30)-10

60-10

50

stepladder [879]3 years ago
6 0

Answer:

50

Step-by-step explanation:

The sum of the angles of a triangle add to 180 degrees

A + B + C = 180

2x-10 + 70+ x+30 = 180

Combine like terms

3x +90 = 180

Subtract 90 from each side

3x+90-90=180-90

3x= 90

Divide by 3

3x/3= 90/3

x=30

We want to find angle A

A = 2x-10

   =2*30 -10

  =60-10

  50

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Step-by-step explanation:

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7 0
3 years ago
Use long division to find 5210 divided by 46
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52-46=6 drop down the 1 = 61- 46=15 drop down the 0 =150 46x3= 138 so 150-138= 12
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3 years ago
A school-bus is dropping students off after school. When the bus left the
Verdich [7]

Answer:

60%

Step-by-step explanation:

40-16=24

24/40=0.6

0.6*100=60

First, work out the difference (decrease) between the two numbers you are comparing.

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Read 2 more answers
What is the lcd of (3x)/(x + 3), 3/(x ^ 2 - 9)
Rudik [331]

Answer:

Simplify the denominator.

Tap for more steps...

x

(

x

+

3

)

(

x

−

3

)

⋅

3

x

x

2

−

5

x

+

6

Factor

x

2

−

5

x

+

6

using the AC method.

Tap for more steps...

x

(

x

+

3

)

(

x

−

3

)

⋅

3

x

(

x

−

3

)

(

x

−

2

)

Finding the LCD of a list of values is the same as finding the LCM of the denominators of those values.

(

x

+

3

)

(

x

−

3

)

,

(

x

−

3

)

(

x

−

2

)

The LCM is the smallest positive number that all of the numbers divide into evenly.

1. List the prime factors of each number.

2. Multiply each factor the greatest number of times it occurs in either number.

The number

1

is not a prime number because it only has one positive factor, which is itself.

Not prime

The LCM of

1

,

1

is the result of multiplying all prime factors the greatest number of times they occur in either number.

1

The factor for

x

+

3

is

x

+

3

itself.

(

x

+

3

)

=

x

+

3

(

x

+

3

)

occurs

1

time.

The factor for

x

−

3

is

x

−

3

itself.

(

x

−

3

)

=

x

−

3

(

x

−

3

)

occurs

1

time.

The factor for

x

−

2

is

x

−

2

itself.

(

x

−

2

)

=

x

−

2

(

x

−

2

)

occurs

1

time.

The LCM of

x

+

3

,

x

−

3

,

x

−

3

,

x

−

2

is the result of multiplying all factors the greatest number of times they occur in either term.

(

x

+

3

)

(

x

−

3

)

(

x

−

2

)

Step-by-step explanation:

there does that help

6 0
3 years ago
A trapezoid has been rotated 180°. Is it true
lina2011 [118]

Answer:

True.

Step-by-step explanation:

Rotations do not change the size of a shape. Dilations cause changes in the size of a shape.

8 0
3 years ago
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