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stepladder [879]
3 years ago
13

12 POINTS 12 POINTS 12 POINTS 12 POINTS 12 POINTS 12 POINTS 12 POINTS 12 POINTS

Mathematics
2 answers:
ki77a [65]3 years ago
6 0

Answer: The answer is D: 52 degrees.

hope this helps you :D

also i just wanted to say you're lovely and you're doing great!!! keep going and dont give up ^w^

Mashcka [7]3 years ago
3 0
<h2>Answer:</h2>

m∠A = mDE - mBC

x° = 116° - 64°

x° = 52°.

Therefore, m∠A equal to 52°.

<u>Correct choice</u> - [D] 52°.

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According to a survey of adults, 64 percent have money in a bank savings account. If we were to survey 50 randomly selected adul
zheka24 [161]

Answer:

The mean number of adults who would have bank savings accounts is 32.

Step-by-step explanation:

For each adult surveyed, there are only two possible outcomes. Either they have bank savings accounts, or they do not. So we use the binomial probability distribution to solve this problem.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

E(X) = np

In this problem, we have that:

p = 0.64

If we were to survey 50 randomly selected adults, find the mean number of adults who would have bank savings accounts.

This is E(X) when n = 50.

So

E(X) = np = 50*0.64 = 32

The mean number of adults who would have bank savings accounts is 32.

6 0
3 years ago
The first number of three consecutive even integers equals the sum of the second and third. Find the three numbers.
Arlecino [84]

The first integer (x) is equal to the consecutive even integers, x+2, x+4.

x = (x+2) + (x+4)

x = 2x + 6

x - 6 = 2x

x = -6 (First integer)


+2

-4 (Second integer)


+4

-2 (Third integer)


Integers: -6, -4, -2

Equation: x = (x+2) + (x+4)

8 0
3 years ago
Read 2 more answers
April shoots an arrow upward at a speed of 80 feet per second from a platform 25 feet high. The pathway of the
zaharov [31]

Answer:

The maximum height of the arrow is 125 feet.

Step-by-step explanation:

The pathway of the arrow can be represented by the equation,

h = -16t^2 +80t + 25 .....(1)

Where h is height in in feet and t is time in seconds.

It is required to find the maximum height of the arrow. For maximum height, \dfrac{dh}{dt}=0.

So,

\dfrac{d(-16t^2 +80t + 25)}{dt}=0\\\\-32t+80=0\\\\t=\dfrac{80}{32}\\\\t=2.5\ s

Put t = 2.5 s in equation (1). So,

h = -16(2.5)^2 +80(2.5) + 25\\\\h=125\ \text{feet}

So, the maximum height of the arrow is 125 feet.

6 0
3 years ago
You buy a new computer for $1,500. The value of the computer decreases by 6%
Naya [18.7K]

Answer:

$1171.05

Step-by-step explanation:

1500 × (1-(6 / 100))⁴

5 0
3 years ago
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Scorpion4ik [409]

Answer:

All of the planets in our solar system revolve around one star-our sun.

The sun's gravity holds the planets in place.

Astronomers long ago and today use star charts to map star locations.

Step-by-step explanation:

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7 0
2 years ago
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