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3 years ago

Circles pls help decent amount of points

Mathematics

1 answer:

Tatiana [17]3 years ago

6 0

Recall that with inscribed angles, they equal half of the arc they create.

Knowing this, take a look at Angle B. Notice that it's two lines are on the diameter? This means that the arc created is 180 degrees. Because it's an inscribed angle, we know that it's 90 degrees.

Also recall that the sum of all angles in a triangle equal 180 degrees.

Knowing this, we can add up all the angles:
(2x + 2) + 9x + 90 = 180

Simplify:
11x + 92 = 180

Subtract:
11x = 88

Divide:
x = 8

Now that we know the value of x is 8, we can input that into the equation of angle 1 in order to solve the question:
2x + 2 = 2(8) + 2

2(8) + 2 = 16 + 2 = 18

Angle 1 is 18 degrees.
-T.B.

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When Colton commutes to work the amount of time it takes him to arrive is normally distributed with a mean of 41 minutes and a s

larisa86 [58]

Answer:

The Probability that commute will be between 33 and 35 minutes to the nearest tenth = 0.0189 ≅1.89%

Step-by-step explanation:

Step(i):-

Given mean of the Population(μ) = 41 minutes

Given standard deviation of the Population (σ) = 3 minutes

let 'X' be the random variable of Normal distribution

Let X = 33

$Z = \frac{x -mean}{S.D} =\frac{33-41}{3} = -2.66$

let X = 35

$Z = \frac{x -mean}{S.D} =\frac{35-41}{3} = -2$

Step(ii):-

The Probability that commute will be between 33 and 35 minutes to the nearest tenth

P(33≤ X≤35) = P(-2.66 ≤X≤-2)

= P( X≤-2) - P(X≤-2.66)

= 0.5 - A(-2) - (0.5 - A(-2.66)

= 0.5 -0.4772 - (0.5 -0.4961) (From normal table)

= 0.5 -0.4772 - 0.5 +0.4961

= 0.4961 - 0.4772

= 0.0189

The Probability that commute will be between 33 and 35 minutes to the nearest tenth = 0.0189 ≅1.89%

4 0

4 years ago

A class of 144 students voted for a class president. Three fourths of the students voted for you. Of the students who voted for

Alla [95]

20;

144/4=36

36/9=4

4x5=20

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3 years ago

ANOTHER ONE! 10 POINTS AND BRAINLIEST

Kazeer [188]

Answer:

Step-by-step explanation:

so simple is not c because is you move it 6 unit is getting off track just reflect over the Y axis in it will fall on place

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3 years ago

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P.A sales tax is charged at the rate of 6%. Find the tax and the total price you would pay for an $860 stereo

vodka [1.7K]

Answer:

Your parents took your family out to dinner. Your parents wanted to give the waiter a 15% tip. If

the total amount of the dinner was $42.00, what should be paid to the waiter

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3 years ago

Read 2 more answers

What are the coordinates of the image of Q for a dilation with center (0, 0) and scale factor 1/2?

Amanda [17]

The answer would be D. (2,2)
Since the scale factor is 1/2, all you have to do is multiply 1/2 by each of x-coordinate and y-coordinate of Q.
Multiplying by 1/2 is the same as dividing by 2, so you divide the x and y coordinates of Q to get the dilation image of Q as (2,2).

8 0

4 years ago

Circles pls help decent amount of points ​

Circles pls help decent amount of points