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3 years ago

14

Plz help 27 points answer all plz thanks

2 answers:

aniked [119]3 years ago

7 0

Answer:

1.-7

2.2

3.-29

4. 9

5.-20

6.0

7.-1

8.3

9. -5

10.53

11.5

12.-15

Step-by-step explanation:

avanturin [10]3 years ago

3 0

Answer:

1) -7

2) 2

3) -29

4) 9

5) -20

6) 0

7) -1

8) 3

9) -5

10) 53

11) 5

12) -15

i'd be happy to explain any

Step-by-step explanation:

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Answer please<br> Fast<br><br><br><br> Fast

solong [7]

Answer:

A. 228.5

B. 10

Step-by-step explanation:

A. Since <em>x</em> represents the number of months, replace <em>x</em> with 6 in the equation. Then multiply 29x6, which equals 174. Then add 174+54.5, which equals 228.5.

B. You need to solve for <em>x</em> by switching the signs in the equation<em>. </em>Set the original equation (29x+54.5) equal to 344.50. To solve for <em>x, </em>first subtract 344.50-54.5, which equals 290 (you subtract because it's the opposite of adding). Then divide 290÷29, which equals 10. You can check your work by replacing <em>x</em> in the original equation with 10, and if you get 344.5, your answer is correct.

Good luck :)

6 0

3 years ago

The value of an investment A (in dollars) after t years is given by the function A(t) = A0ekt. If it takes 10 years for an inves

Ludmilka [50]

Answer:

20 years.

Step-by-step explanation:

We have been given a formula $A(t)=A_0\cdot e^{kt}$ , which represents the value of an investment A (in dollars) after t years.

Substitute the given values:

$\$3,000=\$1,000\cdot e^{k*10}$

Let us solve for k.

$\frac{\$3,000}{\$1,000}=\frac{\$1,000\cdot e^{k*10}}{\$1,000}$

$3=e^{k*10}$

Take natural log of both sides:

$\text{ln}(3)=\text{ln}(e^{k*10})$

Using property $\text{ln}(a^b)=b\cdot \text{ln}(a)$ , we will get:

$\text{ln}(3)=10k\cdot\text{ln}(e)$

We know that $\text{ln}(e)=1$ , so

$\text{ln}(3)=10k\cdot 1$

$\text{ln}(3)=10k$

$\frac{\text{ln}(3)}{10}=\frac{10k}{10}$

$\frac{\text{ln}(3)}{10}=k$

$\$9,000=\$1,000\cdot e^{\frac{\text{ln}(3)}{10}*t}$

Dividing both sides by 1000, we will get:

$9=e^{\frac{\text{ln}(3)}{10}*t}$

Take natural log of both sides:

$\text{ln}(9)=\text{ln}(e^{\frac{\text{ln}(3)}{10}*t)$

$\text{ln}(9)=\frac{\text{ln}(3)}{10}*t\cdot\text{ln}(e)$

$\text{ln}(9)=\frac{\text{ln}(3)}{10}*t\cdot1$

$10*\text{ln}(9)=10*\frac{\text{ln}(3)}{10}*t$

$10\text{ln}(9)=\text{ln}(3)*t$

$10\text{ln}(3^2)=\text{ln}(3)*t$

$2\cdot 10\text{ln}(3)=\text{ln}(3)*t$

$20\text{ln}(3)=\text{ln}(3)*t$

Divide both sides by $\text{ln}(3)$ :

$\frac{20\text{ln}(3)}{\text{ln}(3)}=\frac{\text{ln}(3)*t}{\text{ln}(3)}$

$20=t$

Therefore, it will take 20 years for the investment to be $9,000.

5 0

3 years ago

Please help with answer and number line

goblinko [34]

Answer:

Graph uploaded!

Step-by-step explanation:

<u>First, let's solve the distributive property.</u>

4/5(x - 2) ≤ 6
=> 4x/5 - 8/5 ≤ 6
=> 4x/5 ≤ 6 + 8/5
=> 4x/5 ≤ 38/5
=> x ≤ 19/2

Now, let's plot this inequality on the line. Please check my graph.

Hoped this helped!

6 0

2 years ago

The table shows how the compound interest on an investment of $6,000 with an interest rate of 3 34%, compounded annually, grows

PIT_PIT [208]

Answer:

1334

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

My last review question before the big test! Can anyone explain this one to me? It's percentages cri

katrin2010 [14]

Answer:

B. 5000

Step-by-step explanation:

To solve this I did 873x10.99 and got 9594.27

I did 52% of 9594.27 and got 4989.02 which means it'll be about 5000

7 0

3 years ago

Read 2 more answers