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3 years ago

Which expressions are aquivalent to j + j + 2k ?

Mathematics

1 answer:

Goshia [24]3 years ago

4 0

$\qquad\qquad\huge\underline{{\sf Answer}}♨$

Let's see ~

$\qquad \sf \dashrightarrow \:j + j + 2k$

$\qquad \sf \dashrightarrow \:2j + 2k$

$\qquad \sf \dashrightarrow \:2(j + k)$

・．━━━━━━━━━━†━━━━━━━━━━━━．・

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Find the equation of the line with that passes through the

nadya68 [22]

Answer: y = -1

Step-by-step explanation:

Use the slope formula and slope-intercept form y=mx+b to find the equation

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3 years ago

Complete the table, for the following investments, which shows the performance (interest and balance) over a 5-year period.

sergiy2304 [10]

Answer:

After 5 years of investment, Suzanne will have $ 4,400 in her account, while Derek will have $ 4,416.32 in his account.

Step-by-step explanation:

Since Suzanne deposits $ 4000 in an account that earns simple interest at an annual rate of 2%, and Derek deposits $ 4000 in an account that earns compound interest at an annual rate of 2% and is compounded annually., Both for a period of 5 years, to determine how much money each one will have in their account after 5 years, the following calculation must be made:

Suzanne:

((4,000 x 0.02) x 5) + 4,000 = X

(80 x 5) + 4,000 = X

400 + 4,000 = X

4,400 = X

Derek:

4,000 x (1 + 0.02 / 1) ^ 5x1 = X

4,000 x 1.02 ^ 5 = X

4,416.32 = X

Thus, after 5 years of investment, Suzanne will have $ 4,400 in her account, while Derek will have $ 4,416.32 in her account.

5 0

3 years ago

Find the circumference and area of a circle with the diameter AB,<br> A(-8,4) and B(4,-1)

bezimeni [28]

$\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ A(\stackrel{x_1}{-8}~,~\stackrel{y_1}{4})\qquad B(\stackrel{x_2}{4}~,~\stackrel{y_2}{-1})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ AB=\sqrt{[4-(-8)]^2+[-1-4]^2}\implies AB=\sqrt{(4+8)^2+(-1-4)^2} \\\\\\ AB=\sqrt{144+25}\implies AB=\sqrt{169}\implies \stackrel{\textit{diameter}}{AB=13}~\hfill \boxed{\stackrel{\textit{radius}}{6.5}} \\\\[-0.35em] ~\dotfill$

$\bf \textit{circumference of a circle}\\\\ C=2\pi r\qquad \qquad C=2\pi (6.5)\implies C=13\pi \implies C\approx 40.84 \\\\\\ \textit{area of a circle}\\\\ A=\pi r^2\qquad \qquad A=\pi (6.5)^2\implies A=42.25\pi \implies A\approx 132.73$

5 0

3 years ago

Kruka [31]

Answer:

24!

Step-by-step explanation:

I will refer the people to A,B,C, and D

24 is the answer.

4 choices for the first position.

3 choices for the second.

2 choices for the third.

1 for the fourth.

4*3*2*1=24

Here it is listed out where a,b,c,d are the 4 people:

abcd

abdc

acbd

acdb

adbc

adcb

bacd

badc

bcad

bcda

bdac

bdca

cabd

cadb

cbad

cbda

cdab

cdba

dabc

dacb

dbac

dbca

dcab

dcba

(of course, this assumes that there is a direction to the line, or a 'front' and a 'back'. If direction doesn't matter then the answer is 12, since every combination above has a reverse. e.g., abcd and dcba. The list becomes:

abcd

abdc

acbd

acdb

adbc

adcb

bacd

badc

bcad

bdac

cabd

cbad

4 0

3 years ago

Please solve this quick 8n+7=31

emmasim [6.3K]

Hello there!

To find the value of n, work to isolate it from all other terms in the equation.

8n+7=31 - Start by subtracting 7 from both sides. 8n + 7 - 7 = 31 - 7

8n = 24 Next, divide both sides by 8 to finish isolating n. 8n÷8 = 24÷8

n = 3

This is your final answer.

I hope this was helpful and have a great rest of your day!

6 0

3 years ago

Read 2 more answers