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2 years ago

Express in terms i root of -40

Mathematics

1 answer:

tensa zangetsu [6.8K]2 years ago

5 0

Answer:

6.32455532i

Step-by-step explanation:

Use the square root calculator too find it

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One teacher wants to give each student 7 over 9 of a slice of pizza. If the teacher has 7 slices of pizza, then how many student

Anna007 [38]

Total = 7 slices.
1student = 7/9 of a slice.

Total number of students:

$7 \div \dfrac{7}{9}$

$= 7 \times \dfrac{9}{7}$

$= 9$

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Answer: She will be able to hand out to 9 students.
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3 0

2 years ago

WILL MARK BRAINLEST HELP ASAP!!!!!

astra-53 [7]

Answer:

Area of the rectangle is 10x²+7-6

Step-by-step explanation:

Area of rectangle is the product of its length and width

As length of given rectangle is 5x+6 and its width is 2x-3 the are is

(5x+3)(2x-3)

=5x·2x-5x+6·2x-6

=10x²-5x+12x-6

=10x²+7x-6

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2 years ago

Read 2 more answers

A rectangle has a perimeter of 30. It is dilated by a scale factor of 2.

LuckyWell [14K]

Answer:

It is 60.

Step-by-step explanation:

When shapes are dilated (when they get bigger or smaller), perimeter changes linearly—in direct proportion with length. This means if the scale factor is 2, then you multiply it by 2. 2 multiplied by 30 equals 60.

5 0

2 years ago

A building has 4 stories that are each 15 feet high. A scale drawing has the height of the building at 5 inches.

prohojiy [21]

1: 144 because
4 * 15 = 60 ft total height = 720 in total height
5: 720 = 1: 144

7 0

2 years ago

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Hamid has gained weight. He now weights 88kg, which is 10% higher than his normal weight. What is Hamids normal weight

zubka84 [21]

Let his normal weight = 100%

He is 10% more so he is 110%

Divide his weight now by 110% to find his normal weight.

88/1.1 = 80

His normal weight is 80 kg

3 0

2 years ago