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2 years ago

13. How long will a man take to cover

Mathematics

2 answers:

Ksivusya [100]2 years ago

6 0

One hour an 45 minutes

scoray [572]2 years ago

3 0

7km/ 4km per hour = 1 3/4 hours

3/4 hour = 45 minutes

Total time = 1 hour and 45 minutes.

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HELP!<br> (5 + x)(5 - x) = 7 is a quadratic equation.<br> true or false

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2 years ago

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Olive oil has a density of 0.9 g/mL. What is the mass of 200 mL of olive oil?

lesantik [10]

Known, density= mass/ volume
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2 years ago

A jar contains 2 green marbles, 4 blue marbles, and 3 yellow marbles. A marble is chosen at random from the jar and replaced. Fi

omeli [17]

Answer:

2/27

Explanation:

• Number of green marbles = 2

• Number of blue marbles = 4

• Number of yellow marbles = 3

Total = 2+4+3 =9

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• Probability of choosing a yellow marble = 3/9

Therefore, the possibility that the first marble is green and the second is yellow is:

$\begin{gathered} =\frac{2}{9}\times\frac{3}{9} \\ =\frac{2}{27} \end{gathered}$

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5 months ago

The endpoints of a line segment are at the coordinates (–6, 3, 4) and (4, –1, 2). What is the midpoint of the segment?

natulia [17]

Answer:

$( - 1,1,3 )$

Step-by-step explanation:

Use the midpoint formula:

$(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}, \frac{z_1+z_2}{2} )$

We want to find the midpoint of the line

that has endpoints.

$(\frac{ - 6+4}{2},\frac{3+ - 1}{2}, \frac{4+2}{2} )$

We simplify to get;

$(\frac{ - 2}{2},\frac{2}{2}, \frac{6}{2} )$

This finally gives:

$( - 1,1,3 )$

The correct answer is A.

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2 years ago

Please help ASAP!!!!!!

OleMash [197]

Answer:

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Step-by-step explanation:

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2 years ago