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cupoosta [38]
3 years ago
10

HELP PLEASE ILL GIVE 20PTS AND BRAINLIEST TO RIGHT ANSWER

Mathematics
2 answers:
guapka [62]3 years ago
8 0

Answer:

Measure of angle AD = 90 Degrees since its a right angle

Also

Measure of angle BC = 90 degrees as it is also a right angle.

Now,

From AD:

90 - 73 = 17 degrees

As  AD and BC are same concurrent angles. So,

x = 17 degrees

Hope it helps you. Do mark me as brainlist.

vesna_86 [32]3 years ago
4 0

Answer:

Step-by-step explanation:

x + 90° + 73° = 180° ( being linear pair)

x = 180° - 163 °

x = 17°

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A chord subtends an angle 120° at the centre of the circle of radius 3.5cm. Find the perimeter of the minor sector.[r=22/7]​
Mamont248 [21]

Answer:

Step-by-step explanation:as we know that arc length is

s=r*∅

as given angle in degree so  convert it in radian we get

angle=2.09 rad

r=3.5 cm

hence we get

s=3.5*2.09 =7.315 cm

perimeter of sector = s +d  where d=2*r=2*3.5=7 cm

perimeter of sector=7.315+7=14.315 cm

if you like it then hit the stars and tag it a brain-list

4 0
3 years ago
The amount of time it takes Isabella to wait for the bus is continuous and uniformly distributed between 3 minutes and 15 minute
madam [21]

Answer:

33.33% probability that it takes Isabella more than 11 minutes to wait for the bus

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X lower than x is given by the following formula.

P(X \leq x) = \frac{x - a}{b-a}

For this problem, we have that:

Uniformly distributed between 3 minutes and 15 minutes:

So a = 3, b = 15

What is the probability that it takes Isabella more than 11 minutes to wait for the bus?

Either she has to wait 11 or less minutes for the bus, or she has to wait more than 11 minutes. The sum of these probabilities is 1. So

P(X \leq 11) + P(X > 11) = 1

We want P(X > 11). So

P(X > 11) = 1 - P(X \leq 11) = 1 - \frac{11 - 3}{15 - 3} = 0.3333

33.33% probability that it takes Isabella more than 11 minutes to wait for the bus

4 0
3 years ago
20 points+brainliest!
lakkis [162]

Answer:

C, D, E

Step-by-step explanation:

4 0
3 years ago
Solve 2x + 8 < 10 or 2x + 8 > 20.
jasenka [17]

Answer:

x=1 or x=9

Step-by-step explanation:

make x the subject of the formula by correcting the right terms and then divid both sides by 2

4 0
2 years ago
Find the exact values of the indicated trigonometric functions. Write fractions in lowest terms.
vodka [1.7K]

For this case we have that by definition of trigonometric relations of a rectangular triangle, that the sine of an angle is given by the opposite leg to the angle on the hypotenuse of the triangle. While the tangent of the same angle is given by the leg opposite the angle on the leg adjacent to the angle.

Then, according to the figure we have:

sin (B) = \frac {7} {25} = 0.28\\tg (B) = \frac {7} {24} = 0.2917

Answer:

sin (B) = \frac {7} {25}\\tg (B) = \frac {7} {24}

7 0
3 years ago
Read 2 more answers
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