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notka56 [123]
3 years ago
6

I need help..........

Mathematics
1 answer:
Marat540 [252]3 years ago
5 0
Answer: 3rd one
Rearrange the original equation so it fits the model of : ax^2+bx+c=0
Then use the quadratic formula to find all possible answers.
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AB is tangent to the circle at B. M∠A=40 and mBC=130. <br> a. Find x <br> b. Find y
soldi70 [24.7K]

The values for x and y are respectively given as

  • x = 50
  • y= 90

This is further explained below.

<h3>What is the values for x and y ?</h3>

Generally, the equation for secent  is  mathematically given as

secent = \frac{big arc - small arc}{2}

Therefore

40 = \frac{130-x}{2}

80 = 130-x

x = 50

b) To Solve for y Now we find a measure of arc CD

ArcCD = 360-130-50

ArcCD = 180

In conclusion,(1/2) of the arc measure is equal to the angle that is on and inside a circle.

y = 180/2

y= 90

Read more about circle

brainly.com/question/11833983

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3 0
2 years ago
The Sun is v kilometers from the upper edge of the Earth's atmosphere and q kilometers from the surface of the Earth. Which of t
horsena [70]
The distance between the Earth's surface and the upper edge of the Earth's atmosphere would be Q - V.

The distance from the Sun to the Earth is Q. The distance from the Sun to the upper edge of the atmosphere is V. If you subtract V from Q, the remaining distance is that of the Earth's atmosphere.  Q - V = the atmosphere
6 0
3 years ago
Read 2 more answers
Which equation is equivalent to 4^x+3=64
Ainat [17]
The answer is B. Hope this helps!(:
7 0
3 years ago
Suppose 5 men and 7 women are on a crowded elevator. At the next floor, four people get off the elevator. Find the probability t
Svetach [21]

Answer:    \bold{\dfrac{1}{99}}

<u>Step-by-step explanation:</u>

There are 5 men and 7 women, which is a total of 12 people.  Finding the probability that none of the four people are women is the same as saying that all four people are men.

\dfrac{5\ men}{12\ total\ people}\ and\ \dfrac{4\ men\ remaining}{11\ people\ remaining}\ and\ \dfrac{3\ men}{10\ people}\ and\ \dfrac{2\ men}{9\ people}\\\\\\=\dfrac{5\times 4\times 3\times 2}{12\times 11\times 10\times 9}\\\\=\dfrac{(4\times 3)\times (2\times 5)}{12\times 11\times 10\times 9}\\\\=\dfrac{1}{11\times 9}\\\\=\dfrac{1}{99}

5 0
3 years ago
A stock broker is evaluating the value of a certain share with each week. The function that describes the value of the share, v,
klio [65]
We have the following equation:
 v(n) = 14(b)^n
 Where,
 n: number of weeks
 growth rate means ----> b>1
 In this case:
 b=1.06  > 1
 the correct statement is:
 If b = 1.06, the weekly percent growth rate of the share's value is 6%.
 Answer:
 If b = 1.06, the weekly percent growth rate of the share's value is 6%.
5 0
3 years ago
Read 2 more answers
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