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grin007 [14]
3 years ago
11

Someone plss help :)

Mathematics
1 answer:
nata0808 [166]3 years ago
8 0

Answer:

it's Exponential .......

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Point C is on line segment \overline{BD} BD . Given CD=x,CD=x, BC=5x-5,BC=5x−5, and BD=2x+7,BD=2x+7, determine the numerical len
NARA [144]

Answer:

CD = 3

Step-by-step explanation:

Given

CD = x

BC = 5x - 5

BD = 2x + 7

Required

Determine CD

Since, C is a point on BD, the relationship between the given parameters is;

BD = BC + CD

Substitute the values of BD, BC and CD

2x + 7 = 5x - 5 + x

Collect Like Terms

2x - 5x - x = -5 - 7

-4x = -12

Divide both sides by -4

\frac{-4x}{-4} = \frac{-12}{-4}

x = 3

To determine the length of CD;

Substitute 3 for x in CD = x

Hence;

CD = 3

3 0
3 years ago
If the heart of a human beats 72 times in 1 minute. Find, in what time will the heart beat 204 times?
Lelechka [254]

Hello!

your answer is: 2 minutes, 49 seconds, and 800 milliseconds

to get this, divide 204 by 72. that gives you the amount of minutes the heart was beating, which is 2.83 minutes

then, multiply 2.83 by 60 to get the seconds

you have 169.8 seconds.

2 minutes is equal to 120 seconds, so subtract that from 169.8

that leaves 49.8 seconds

.8 seconds is equal to 800 milliseconds

so put it all together and you have: 2 minutes, 49 seconds, and 800 milliseconds

I hope this helps, and have a nice day!

3 0
3 years ago
After the financial crisis that hits the country of Barbaria in 2012, a total of 9 million people are unemployed. If 35 million
tatuchka [14]

Answer:

25.71\%

Step-by-step explanation:

The Unemployment rate of a country is calculated as a fraction of its Labor force. In Barbaria,

Number of Unemployed =9 million

Number of Employed =35 Million

Labor Force = (9+35) Million =44 Million

Unemployment Rate=\frac{\text{Unemployed People}}{\text{Labour force}} X 100\\=\frac{9}{35}X100\\ =25.71\%

The Unemployment rate in Barbaria in 2012 was 25.71%.

8 0
3 years ago
Question Which ordered pairs are solutions to the equation 2x+10y=12? Select all that apply. Select all that apply: (7,−2) (−5,−
AveGali [126]

Answer:

C and D

Step-by-step explanation:

To determine which pairs are solutions, substitute the coordinates into the left side of the equation and if equal to the right side then they are solutions.

(7, - 2)

2(7) + 10(- 2) = 14 - 20 = - 6 ≠ 12 → (7, - 2) is not a solution

(- 5, - 4)

2(- 5) + 10(- 4) = - 10 - 40 = - 50 ≠ 12 → (- 5, - 4) is not a solution

(4, \frac{2}{5} )

2(4) + 10(\frac{2}{5}) = 8 + 4 = 12 → hence solution

(- 5, \frac{11}{5} )

2(- 5) + 10( \frac{11}{5}) = - 10 + 22 = 12 → hence solution

8 0
3 years ago
Where is -4 on the number line? Expain
Rzqust [24]

Answer:

negative four is going to be on the opposite side of the positive four because it is negative\ge and positive and negatives are different

Step-by-step explanation:

7 0
3 years ago
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