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expeople1 [14]
3 years ago
14

Helpp! i will mark you as brainliest:) &’ please show your work (Easy)

Mathematics
2 answers:
Alborosie3 years ago
8 0

Answer:

1. is a supplementary angle so it adds up to 180 so 180-145=x and x=35

2. is also a supplementary angle so 180-130=x and x =50

Step-by-step explanation:

Andrew [12]3 years ago
7 0

Answer:

question 3 x=35   question 4 x=130

Step-by-step explanation:

question 3

180-145=35 alternate angle

question 4

alternate angle

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The number 84 can be expressed as the sum of 54 + 30. Which shows how to use the distributive
TEA [102]

Answer:I onesly dont no

Sorry I have no friends

Step-by-step explanation:

6 0
3 years ago
Add and simplify
Tanya [424]

Answer:

Your 1st answer is correct

Step-by-step explanation:

\frac{1}{(x - 1)}  -  \frac{3}{(1 - x)}   + 2

\frac{1}{(x - 1)}  -  \frac{3}{ - (x - 1)}  + 2

\frac{1}{(x - 1)}   +  \frac{3}{(x - 1)}  + 2

\frac{4}{(x - 1)}  + 2

\frac{4 + 2(x - 1)}{x - 1}

\frac{4 + 2x - 2}{x - 1}

= \frac{2x  + 2}{x - 1}

=  \frac{2(x + 1)}{x - 1}

6 0
2 years ago
Given a mean of 52.3 and a standard deviation of 1.8, what is the z-score of the value 51.8 rounded to the nearest tenth?
postnew [5]
The z-score of a certain data point in the given statistical data is calculated through the equation,
                                           z-score = (x - m) / sd
where x is the data point, m is the mean and sd is the standard deviation. 
Substituting the known values,
                                           z-score = (51.8 - 52.3) / 1.8
                                           z-score = -0.277
Rounding the answer to the nearest tenth will give an answer of -0.3. 
8 0
3 years ago
Write an equatiob of line in slope intercept from passing through (-10,-8) and parallel to y=1/5x-3
IgorC [24]
Parallel = same slope
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Plug in point
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7 0
3 years ago
What's the standard equation of the circle with the general equation x2 + y2 + 4x – 2y – 20 = 0? answers: 1) (x + 2)2 + (y – 1)2
gizmo_the_mogwai [7]

Answer:

4).  (x + 2)^2 + (y - 1)^2 = 25.

Step-by-step explanation:

x^2 + y^2 + 4x - 2y - 20 = 0

x^2 + 4x + y^2 - 2y = 20

Completing the square on the x and y terms:

(x + 2)^2  - 4 + (y - 1)^2 - 1 = 20

(x + 2)^2 + (y - 1)^2 = 20 + 4 + 1

(x + 2)^2 + (y - 1)^2 = 25.

3 0
3 years ago
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