2 years ago

In a class of 7, there are 3 students who have done their homework.

Mathematics

1 answer:

max2010maxim [7]2 years ago

5 0

Answer:

4/35

Step-by-step explanation:

Probability of 1 student having no hw is 4/7, then 3/6, then 2/5

4/7 x 3/6 x 2/5 reduces to 4/35

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A drawer has a volume of 1575 cubic inches. the drawer is 5 inches deep and 21 inches long. What is the width of the drawer?

katrin [286]

Volume is l × w × h
l = 21 in
h = 5 in
w = ?
volume = 1575 in

21 × 5 × w = 1575
105 × w = 1575
w = 1575 ÷ 105
w = 15 inches

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2 years ago

Given a rhombus, a square, and a rectangle, what must be true of all three quadrilaterals?

Yuliya22 [10]

<span>C.

The diagonals are perpendicular.
</span>

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3 years ago

Simplify 6/10X^2 divided by 6/10^3 -60^2

CaHeK987 [17]

Answer: x - 6

Explanation:

$\cfrac{6}{10x^2} \div \cfrac{6}{10x^3 - 60x^2}$

$= \cfrac{6}{10x^2} \times \cfrac{10x^2(x - 6)}{6}$

$= x - 6$

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3 years ago

Two parallel lines are crossed by a transversal.

patriot [66]

Answer:

C. $m=102$

Step-by-step explanation:

We have been given an image of two parallel lines crossed by a transversal. We are asked to find the measure of m.

We can see that angle that measure 78 degrees and angle m are consecutive interior angles.

Since we know that consecutive interior angles are supplementary, so we can set an equation to find the measure of m as:

$78^{\circ}+m^{\circ}=180^{\circ}$

$78^{\circ}-78^{\circ}+m^{\circ}=180^{\circ}-78^{\circ}$

$m^{\circ}=102^{\circ}$

Therefore, the value of m is 102 and option C is the correct choice.

5 0

2 years ago

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A bacterial culture starts with 3000 bacteria and grows to a population of 12 000 after 3h. Determine the number of bacteria aft

julsineya [31]

Answer: 32000

Step-by-step explanation:

12000 divided by 3 =4000

4000 x 8 =32000

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2 years ago