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4 years ago

Circle the expression that does not belong with the other three explain your Reasoning PLEASE HURRY!

Mathematics

2 answers:

il63 [147K]4 years ago

7 0

Answer:

3rd one

Step-by-step explanation:

a_sh-v [17]4 years ago

4 0

Answer:

Step-by-step explanation:5/6 +6/2

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Which expression is equivalent to a + (c + 7)?

Elina [12.6K]

Answer:

(a + c) + 7

Step-by-step explanation:

Because the only type of math in this expression is addition, whatever way you write it (keeping only plus signs), the answer will be the same. So, a + (c + 7) is equal to (a + c) + 7.

I hope this helps!

3 0

4 years ago

A system of equations is shown. y = 2x - 7 y = -x + 5 What is the solution to the system of equations? Please Show your work

elixir [45]

Are u sure u didnt write this wrong? maybe it’s x=2y-7? this doesn’t make sense :(

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3 years ago

Find the measure of the indicated angle to the nearest degree.<br>A. 36<br>B. 30<br>C. 54<br>D. 60

STatiana [176]

Answer:

54 degrees

Step-by-step explanation:

This is trigonometry. So we are given the adjacent leg and hypotenuse. So we can use cosine(cah from soh cah toa)

We will have to use the inverse of the trig ratios.

Remember!

cos^-1 is not 1/cos(that is sec)

cos^-1(27/46)

acos(27/46)

54.0586701 and so on

Round to nearest degree 54

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4 years ago

What is 15% of 15% of 15% of 500

Sergio039 [100]

The answer is 1.6875

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3 years ago

Read 2 more answers

Given the data shown below, which of the following is the best prediction for

Soloha48 [4]

Answer:

The best prediction for the number of years it will take for the population to reach 200,000 is 9.41

Step-by-step explanation:

Year Population

1 11,920

2 16,800

3 23,300

4 33,000

5 45,750

6 64,000

$y_1 =A _0 e ^{kt _1}\\y_2 = A_0 e^{k t_2}\\(t_1,y_1)=(1,11920)\\(t_2,y_2)=(2,16800)$

Substitute the values

$11920=A _0 e ^{k} ---1\\16800 = A_0 e^{2k} ---2$

Divide 1 and 2

$\frac{11920}{16800}=\frac{e^k}{e^{2k}}\\\frac{11920}{16800}=e^{k-2k}\\ln(\frac{11920}{16800})=-k\\k=-1 ln(\frac{11920}{16800})\\k=0.3432\\A_0=y_1 e^{-k t_1}\\A_0=11920 e^{-0.3432}\\A_0=8457.5238$

The exponential function that passes through the points (1, 11920) and (2, 16800) is $y=8457.5238 e^{0.3432t}$

Now we are supposed to find the best prediction for the number of years it will take for the population to reach 200,000

$200000=8457.5238 e^{0.3432t}$

$\frac{200000}{8457.5238}=e^{0.3432t}$

$ln(\frac{200000}{8457.5238})=0.3432t$

t = 9.41

Hence the best prediction for the number of years it will take for the population to reach 200,000 is 9.41

6 0

4 years ago

Circle the expression that does not belong with the other three explain your Reasoning PLEASE HURRY!​

Circle the expression that does not belong with the other three explain your Reasoning PLEASE HURRY!