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kogti [31]
3 years ago
6

Please help me and we should use laws of exponents​

Mathematics
1 answer:
elena55 [62]3 years ago
6 0

Answer:

3.b

(\frac{8}{3})^{2x+1} *(\frac{8}{3})^{5} =(\frac{8}{3}) ^{x+2}\\\\(\frac{8}{3})^{2x+1 +5} =(\frac{8}{3}) ^{x+2}\\\\\\2x +6 = x+2\\x = -4

i hope question 3.a. is 5^x ÷ 5^-3 = 5^5

3.a.

\frac{5^x}{5^{-3}} = 5^5\\\\5^ {x+3} = 5^5\\\\x+3 = 5\\x =2

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Select the expression that is equal to (-2x +9) – (3x – 4).
Anna [14]

Answer:

C

Step-by-step explanation:

(-2x+9-3x-4)

-2x-3x+9-4

-5x+5

3 0
3 years ago
If she saves 1$ the first week 3$ the season week 9$ the third week how much will she save in 5 weeks
ycow [4]

Based on the numbers we have we can assume that she saves 3 times more each week than the last (1*3=3, 3*3=9).

Following this trend we would multiply the amount she saved the third week ($9) by 3 to get $27 for the fourth week.

Then, we would multiply the amount she saved the fourth week ($27) by 3 to get $81 for the fifth week.

Finally, to figure out how much she saved in the 5 weeks, we need to add each value up to get 1+3+9+27+81= $121 saved in 5 weeks

5 0
3 years ago
What does 2^10/4^42 equal
White raven [17]

Answer:

8^-32

Step-by-step explanation:

4 0
3 years ago
How do you solve x^2+11x+18=0 with either quadratic formula. factoring. or squarerooting
Lostsunrise [7]
I always prefer factoring, if there are simple factors.
There are simple factors here.

x² + 11x + 18 = 0

(x + 2) (x + 9) = 0

The left side is zero if either factor is zero.

First factor:
x + 2 = 0
<u>x = -2</u>

Second factor:
x + 9 = 0
<u>x = -9 </u>

 
3 0
3 years ago
Read 2 more answers
If m∠NLO = 41° and m∠NLM = 88°, what is m∠OLM?
puteri [66]

Answer:

47°

Step-by-step explanation:

Given that m<NLO = 41°, and m<NLM = 88°, according to angle addition postulate, m<OLM + m<NLO = m<NLM

Therefore, subtracting m<NLO from both sides will give us:

m<OLM = m<NLM - m<NLO

m<OLM = 88° - 41°

m<OLM = 47°

5 0
3 years ago
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