MATHEMATICS HIGH SCHOOL

What is the value of (5+9i) - (8-12i)

Answers

Answer 1
Answer:

Answer:

-3+21i is the answer!!!

Step-by-step explanation:

5-8= -3 and 9i-(-12i)= 21i, so the answer is -3 + 21i.

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What is the equation of the line that passes through (-3, -1) and has a slope of 3/5 ? Put your answer in slope-intercept form. A y = 3/5x + 4/5B y = 3/5x - 4/5C y = -3/5x - 4/5
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Find all the real cube roots of 0.000027.A. 0.0009
B. 0.03 and -0.03
C. 0.0009 and -0.0009
D. 0.03

Answers

cube root of 0.000027 is 0.03

Answer:

The answer is the option D

0.03

Step-by-step explanation:

we have

\sqrt[3]{0.000027}

we know that

\sqrt[3]{0.000027}=\sqrt[3]{(27)/(1,000,000)}=\sqrt[3]{(3^(3))/(100^(3))}=(3)/(100)=0.03

Firewood is often sold by the cord. A cord of wood is a bundle measuring 4 feet by 4 feet by 8 feet. What's the volume of a cord of wood in cubic feet?

Answers

4 x 4 x 8 = 128 cubic feet

4x4x8=volume
So it 16x8
16x8=128

Write the equation of a line that passes through the point (2,-1) and has a slope of -3

Answers

Finding the equation using slope-intercept form.

y=-3x+7

OR

Finding the equation using point-slope form.

y-1=-3 × (x-2)

Hope this helps!

thomas and his mom take a taxi to the airport it costs a flat fee of $10 plus $4.75 a mile his mom adds a 10% tip to the total and pays the diver $58 what is the distance to the airport

Answers


This is one of those problems that you have to work backwards ...
start with the total, and work  back to the parts that make it up.

-- The total is  $58 .

-- The tip was 10% of the total fare.   
   So 
                                          1.10 (total fare)  =  58

Divide each side by 1.1 :        Total fare    = 58/1.1 =  $52.73

Out of the total fare, $10 was the flat fee before they drove
anywhere.    So the amount for mileage was  $42.73 .

Mileage was charged at the rate of  $4.75 per mile.
So the distance was
                                       42.73 / 4.75  =  9.00 miles (rounded)
                                                          
1.1(10 + 4.75x) = 58
10 + 4.75x = 580/11
4.75x = 470/11
4 3/4 x = 470/11
19/4x = 470/11
x = 470/11 * 4/19
= around 9 miles

If this helped, please consider making it the brainliest answer! :)

Slope= 1/5, y-intercept=1

Answers

y = mx + b
y = 1/5x + 1

Help pleaseGiven the sets M = {5, 6, 7, 8, 9} and N = {6, 8, 10, 12, 14}, the set M∩N is identified by which notation below?

A- {6, 8}

B- {5, 6, 6, 7, 8, 8, 10, 12, 14}

C- {5, 6, 7, 8, 9, 10, 12, 14}

D- ø

Answers

The symbol ∩ means the "intersection" of two sets. In other words, it is the set of terms that are found in both sets. In the case of M∩N, the only common terms are {6,8}, making choice A the correct answer.
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