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Jobisdone [24]
3 years ago
10

Plz answer for 20 pts

Mathematics
2 answers:
Marina86 [1]3 years ago
6 0

Answer:

6) \: \: \sqrt{3} + 4 \sqrt{3} \: = \: 5\sqrt{3}

7) \: \: 3\sqrt{5}+ 6\sqrt{45} = 3\sqrt{5}+6\sqrt{9} \! \cdot \! \sqrt{5}

= 3\sqrt{5} + 6\! \cdot \! 3 \! \cdot \!  \sqrt{5}=3 \sqrt{5} + 18 \sqrt{5} = 21\sqrt{5}

KATRIN_1 [288]3 years ago
5 0

Answer to Problem 1: 5√3

Answer to Problem 2: 21√5

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Sophia puts $250 in the bank with a 2.5% annual interest rate compounded monthly. If Sophia does not touch his money, how much m
Fittoniya [83]

Answer:

<h3> D) $276.26</h3>

Step-by-step explanation:

Deposited amount initially (P) = $250.

Rate of interest(r) = 2.5% compounded monthly = 0.025

Number of years (t) = 4.

Number of months in an year (n) = 12.

Formula for compound interest:

A=P(1+\frac{r}{n})^{nt}.

Plugging values in formula, we get

A= 250(1+\frac{0.025}{12})^{12\times 4}

A= 250(1.00208)^{48}

A= 250\times \:1.10506

A=276.26.

<h3>Therefore, correct option is  D) $276.26.</h3>
7 0
3 years ago
Help? Is this true or false? Ill give brainliest ^_^
Sphinxa [80]

Answer:

True

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please hurry im in a timed test
Mnenie [13.5K]

Answer:

x^2-7x+12

Step-by-step explanation:

(x-3)(x-4)=\\x \cdot x + x \cdot -4 +x \cdot -3 + -3 \cdot -4=\\x^2-4x-3x+12=\\x^2-7x+12

Hope this helps!

3 0
3 years ago
A company now has 4500 employees nationwide. It wishes to reduce the number of employees by 250 per year through​ retirements un
Darya [45]

4500 - 2300 = 2200

They wish to get rid of 2200 employees

250(x) = 2200

Divide 2200 by 250

x = 8.8

It will take 8.8 years.

6 0
3 years ago
A= V^2/r <br> Solve the formula for r.
kotegsom [21]

Answer:

                  \bold{r=\dfrac{V^2}A}

Step-by-step explanation:

\bold{A=\dfrac{V^2}r}\\^{\cdot r}\qquad ^{\cdot r}\\\bold{Ar=V^2}\\ ^{\div A}\quad\ ^{\div A}\\\bold{r=\dfrac{V^2}A}

7 0
3 years ago
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