3 years ago

Question 6

Mathematics

1 answer:

erastova [34]3 years ago

8 0

It’s 21.9 hope this helps

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Simplify: (5+√−9)(−9+√−196)

Margaret [11]

Answer:

-1809 + 899i or

-1809 + √-899

Step-by-step explanation:

foil method

i² = -1

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3 years ago

The ratio of girls to students at a middle school is 10 to 18. If there are 270 students at the school, how many are girls?

Stells [14]

A good way of doing this problem would be to use cross multiplication of ratios
<u /> $\frac{10 girls}{18 students} = \frac{X girls}{270 students}$

Then cross multiply

(10 girls)(270 students)=(X girls)(18 students)

2700=18x
150=x

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3 years ago

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A factory makes 1500 cans per minute, the factory makes cans for 8 hours a day, each can is filled with 300ml of cola, how much

3241004551 [841]

1500 x 60 = the number of cans made in one hour (90,000)
90,000 x 8 = the number of cans made in 8 hours (720,000)
720,000 x 300 = 216,000,000 ml of cola

Hope this helps you out!

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3 years ago

Write the equation for a line that passes through (4,-1) and has a slope of 5

Anit [1.1K]

Answer:

y = 5x - 21

Step-by-step explanation:

Since we already know the slope, all we need to do is plug the values of x and y into the equation.

y = 5x + b

-1 = 5(4) + b

-1 = 20 + b

-21 = b

The equation is y = 5x - 21.

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How to find the value of x so the polygons have the same perimeter

Scorpion4ik [409]

I hope this helps you

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3 years ago

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