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s344n2d4d5 [400]
3 years ago
9

Help me please I need an an answer asap

Mathematics
1 answer:
storchak [24]3 years ago
4 0
5A + 7 = 3A + 7 + 2A
We need to solve for A.

3A + 7 + 2A = 3A + 2A + 7 = 5A + 7 (We can add 3A and 2A because it's the same variable, so we add the coefficients)

5A + 7 = 3A + 7 + 2A
5A + 7 = 5A + 7

5A + 7 is always equal to 5A + 7 because it's the same equation. So the equation got infinitely many solutions.
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simplify the expression write your answer as a complex number. three square root of 16 plus square root of - 9​
german

Answer:

\large\boxed{3\sqrt{16}+\sqrt{-9}=12+3i}

Step-by-step explanation:

3\sqrt{16}+\sqrt{-9}\\\\\sqrt{16}=4\ \text{because}\ 4^2=16\\\\\sqrt{-9}=\sqrt{(9)(-1)}\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\=\sqrt9\cdot\sqrt{-1}=(**)\\\sqrt9=3\ \text{because}\ 3^2=9\\\sqrt{-1}=i\\(**)=3i\\\\3\sqrt{16}+\sqrt{-9}=(3)(4)+3i=12+3i

5 0
4 years ago
Profit 75% retail $350. what is cost at wholesale
skelet666 [1.2K]

Answer:

Step-by-step explanation:

350-75%=87.5\\so 350-87.5\\=262.5\\$262.5 dolla profit\\

4 0
3 years ago
Is 20x9x5 a associative or distributive property?
Oduvanchick [21]
It is neither. Distributive is like 20x9 20x5 then add those products. Associative is like (20x9) x5. You can however use both for this equation
3 0
3 years ago
Read 2 more answers
one year the population of a city was 354000. several years later it was 407100. find the percent increase​
nika2105 [10]

Answer:

15% increase

Step-by-step explanation:

Subtract 407100 minus 354000

Divide that amount by the absolute value of the starting value

Multiply by 100 to get a percent increase

7 0
2 years ago
THIS IS WORTH 10 POINTS IF YOU ANSWER AND EXPLAIN IN FULL SENTENCE AND MAKE IT SOUND AWESOME I WILL MARK BRAINLIEST BY TOMORROW
UNO [17]
0.67x + 0.3=2.4

We simplify the equation to the form, which is simple to understand
0.67x + 0.3=2.4

We move all terms containing x to the left and all other terms to the right.
+ 0.67x=+2.4-0.3

We simplify left and right side of the equation.
+ 0.67x=+2.1

We divide both sides of the equation by 0.67 to get x.
x=3.13432835821
8 0
4 years ago
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