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sasho [114]
3 years ago
14

An isosceles triangle has base angles that each measure 42 degrees.Which equation can be used to find z, the measure of the thir

d angle of this isosceles triangle in degrees
Mathematics
1 answer:
gavmur [86]3 years ago
3 0

Answer:

z+42+42=180

Step-by-step explanation:

Since it is an isosceles triangle, the two base angles are the same and remember all the angles add to  180. So use this equation:

z+42+42=180

If you need to find z, it is 96.

Check: 96+42+42=180

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Given that D(x) = 2x, select all of the following that are true statements
Keith_Richards [23]

Answer:

D(x) is a function

D(x) is a direct variation

D(x) is a rule for the set of points (5.10). (6, 12) and (-2,-4)

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem

D(x)=2x

D(x) is a direct variation (linear function)

The variable x is the independent variable or input value

The variable D(x) is the dependent variable or output value

<u><em>Verify each statement</em></u>

case 1) D(x) is a function

The statement is true

see the explanation

case 2) x is the dependent variable

The statement is false

The variable x is the independent variable or input value

case 3) D(x) is a direct variation

The statement is true

see the explanation

case 4) D(x) is a rule for the set of points (5.10). (6, 12) and (-2,-4)

The statement is true

Because

For x=5

substitute in the linear equation

D(x)=2(5)=10 ---> is ok

For x=6

substitute in the linear equation

D(x)=2(6)=12 ---> is ok

For x=-2

substitute in the linear equation

D(x)=2(-2)=-4 ---> is ok

6 0
3 years ago
I will give brainiest to whoever answers correctly !!
evablogger [386]

Answer:

markup=62 %

Step-by-step explanation:  

4 0
3 years ago
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Does anyone have a discord server for homework help?​
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Answer:

I do....................................

7 0
3 years ago
If tan x=.67, and cos x=.83, what is sin x
Alexxandr [17]

Answer:

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Step-by-step explanation:

                                  sin x

tan x is defined as -------------

                                  cos x

and we can solve this for sin x:  sin x = (cos x)(tan x)

which here is:  sin x = 0.83(0.67) = 0.56 (rounded up from 0.5561)

7 0
3 years ago
John finds a toy train set John finds a toy train set on sale for 20% off at a toy store. The original price was $35. John
Helen [10]

Well here's your answer straight <u><em>he must pay 29.82$ </em></u>and here's my work,

  1. 20% of 35 is 7 and since its 20% off we must subtract 35-7=28
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  3. 6.5 of 28 is 1.82 so we add 28+1.82 which equals your answer 29.82

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3 years ago
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