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Rus_ich [418]
3 years ago
13

What is the measure of angle B?​

Mathematics
2 answers:
QveST [7]3 years ago
6 0

Answer:

b = 60

Step-by-step explanation:

The sum of the angles of a triangle are 180

80+40+b = 180

Combine like terms

120+b =180

Subtract 120 from each side

b = 180-120

b = 60

vampirchik [111]3 years ago
6 0

Answer:

60°

Step-by-step explanation:

Recall that all triangles have an interior angle sum of 180. In other words:

\angle A+\angle B +\angle C = 180

Plug in the angle values we know:

(80)+(40)+\angle B  = 180\\120+\angle B =180\\\angle B = 60\textdegree

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Examine the diagram of circle V, where two chords, JK and LM, are equidistant from the center. If JK=4x+37, and LM=5(x+5), what
77julia77 [94]

Answer:

x=12

Step-by-step explanation:

we know that

If the two chords are equidistant from the center of the circle, then the chords must be congruent.

so

JK=LM

substitute the given values

4x+37=5(x+5)

solve for x

5x-4x=37-25\\x=12

6 0
3 years ago
Write an equation of a line parallel to y = -2x + 3 that passes through (-2,-1)
ElenaW [278]

\boxed{y=-2x-5}

<h2>Explanation:</h2>

The slope-intercept form of the equation of a line:

y=mx+b \\ \\ \\ Where: \\ \\ m:Slope \\ \\ b:y-intercept

The given line has the following characteristics:

y=-2x+3 \\ \\ \\ So: \\ \\ m=-3 \\ \\ b=3

So the line we are looking for needs to be:

y=-2x+b \\ \\ \\ It \ passes \ through \ (-2,-1): \\ \\ -1=-2(-2)+b \\ \\ b=-1-4 \\ \\ b=-5

So, the equation of the line would be:

\boxed{y=-2x+3}

<h2>Learn more:</h2>

Many-to-one function: brainly.com/question/12881881

#LearnWithBrainly

3 0
4 years ago
Write these expressions as the square of a monomial.
son4ous [18]

Answer:

81x4 = (9x^2)^2, 121a6 = (11a^3)^2, 0.09y12 = (0.3y^6)^2, 4/9b6 = (2/3b^3)^2

Step-by-step explanation:

sqrt of 81 = 9, (we do sqrt because its the inverse to exponents) x^4, x^2 * x^2 = (9x^2)^2

sqrt of 121 = 11, a^6, a^x * a^2 = a^6, x = 3, (11a^3)^2

sqrt of 0.09 = 0.3, y^12 = y^x * y^2, x=6,(0.3y^6)^2

sqrt of 4/9 = 2/3, b^x * b^2 = b^6, x = 3, (2/3b^3)^2

^ = power, * = multiplication

8 0
3 years ago
Look at the graphs. Which graph represent a function? Select the three graphs that apply.
nasty-shy [4]

Answer:

show me the graphs please

8 0
3 years ago
Mya had 12 assignments to complete by Friday of this week. So far, she completed 75% percent of her assignments this week. How m
lesya692 [45]

Answer:

3 assignments incomplete.

Step-by-step explanation:

context: 75% can be rewritten as 0.75

12 × 0.75 = 9 assignments completed.

The above equation shows the amount of assignments that have been already completed. In order to find out how many assignments she has yet to have completed, we need to subtract these amounts.

12 - 9 = 3 assignments incomplete.

5 0
3 years ago
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