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Oliga [24]
3 years ago
14

Find the simplify form of the expression. Give your answer in scientific notation:

Mathematics
1 answer:
coldgirl [10]3 years ago
3 0
You multiply the 2 values together to get 1.5*10^12
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Find x =
olga nikolaevna [1]
If they proportional, it implies

(x+2)/(x-1) = 8/10

Or 10x +20 = 8x-8

Or 2x = -28 or x = -14
5 0
3 years ago
Which equation(s) have x = –3 as the solution? log3(2x + 15) = 2 log5(8x + 9) = 2 log4(–20x + 4) = 3 logx81 = 4
baherus [9]

Answer:

log_3(2x+15)=2  and log_4(-20x+4)=3

Step-by-step explanation:

Plug it in and see!

log_3(2x+15)=2\\log_3(2(-3)+15)=2\\log_3(-6+15)=2\\log_3(9)=2\\\text{ This is a true equation because } 3^2=9\\\\\\log_5(8(-3)+9)=2\\log_5(-24+9)=2\\log_5(-15)=2\\\\\text{ Not true because you cannot do log of a negative number }\\\\log_4(-20(-3)+4)=3\\log_4(64)=3\\\text{ this is true because } 4^3=64\\\\\\log_x (81)=4\\log_{-3}(81)=4\\\text{ the base cannot be negative }\\\\\\\\\text{ There is only two options here} \\\\log_3(2x+15)=2 \text{ and } log_4(-20x+4)=3

6 0
3 years ago
Read 2 more answers
The system of equations shown below is graphed on a coordinate grid:
olga_2 [115]

(−2, 2)

3(2) + (-2) = 4

6 - 2 =4

4 = 4 .............TRUE

2(2) − (-2) = 6

4 + 2 = 6

6 = 6 ..............TRUE

Answer:

a. It is (−2, 2) and lies on both lines.

4 0
3 years ago
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3 000 000 000+200 000 000+600 000+20 000+9
Leona [35]
3200620009 is the answer to your question
3 0
3 years ago
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The number 3.14 is a rounded value of the mathematical quantity pi. If you replace 3.14 with pi what is the exact formula for th
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C = πd ( in terms of the diameter ), C = 2πr ( in terms of the radius )


6 0
3 years ago
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