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Amiraneli [1.4K]
3 years ago
12

Simplify the expression (3-4i)(1+5i)-(2-I)

Mathematics
1 answer:
frozen [14]3 years ago
7 0

Answer:

-20x+10x+1

Step-by-step explanation:

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Find the slope of a line through (4, 5) and (4, -5). Determine if the line is vertical, horizontal, or neither.
oksian1 [2.3K]

Answer:

Its a straight line

Step-by-step explanation:

4 0
3 years ago
Sarah biked the same distance each day for 6 days. If she traveled 468 kilometers altogether, how many kilometers did she travel
I am Lyosha [343]
76 kilometers per day.

Step by step

468 divided by 6 = 76

76•6=468
8 0
3 years ago
Which statements can be used to justify the fact that two right angles are supplementary? Select two options.
agasfer [191]

Answer:

A right angle measures 90°.

A supplementary angle is twice the measure of a complementary angle.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
The level of CO2 emissions, f(x), in metric tons, from the town of Fairfax x years after they started recording is shown in the
Temka [501]
1) The average increase in the level of CO2 emissions per year from years 2 to 4 is:
Average=[f(4)-f(2)]/(4-2)=(29,172.15-26,460)/2=2,712.15/2=1,356.075 metric tons. The first is false.

2) The average increase in the level of CO2 emissions per year from years 6 to 8 is:
Average=[f(8)-f(6)]/(8-6)=(35,458.93-32,162.29)/2=3,296.64/2=1,648.32 metric tons. The second is false.

3) The average increase in the level of CO2 emissions per year from years 4 to 6 is:
Average=[f(6)-f(4)]/(6-4)=(32,162.29-29,172.15)/2=2,990.14/2=1,495.07 metric tons. The third is false.

4) The average increase in the level of CO2 emissions per year from years 8 to 10 is:
Average=[f(10)-f(8)]/(10-8)=(39,093.47-35,458.93)/2=3,634.54/2=1,817.27 metric tons. The fourth is true.

Answer: Fourth option: The average increase in the level of CO2 emissions per year from years 8 to 10 is 1,817.27 metric tons.
7 0
2 years ago
Factor the expression.<br><br> 5x + 15<br><br> The factored expression is
Tresset [83]

Find the Greatest Common Factor (GCF)

GCF = 5

Factor out the GCF (Write the GCF first, and then in parenthesis, divide each term by the GCF.)

5(5x/5 + 15/5)

Simplify each term in parenthesis

<u>5(x + 3) </u>

8 0
3 years ago
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