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pentagon [3]
3 years ago
13

How many hours are in a week?

Mathematics
2 answers:
Romashka-Z-Leto [24]3 years ago
6 0

There are 24 hours in a day.. So, you multiply these... 24 x 7(days in a week) = 168.

Paraphin [41]3 years ago
5 0

168 hours are in a single week.

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What are the three equivalent to 6/9
Yuki888 [10]

Answer:

2/3, 12/18 and 18/27

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
These triangles are similar. find Y and X
CaHeK987 [17]

It these triangles are similar, then the sides of the triangles are in proportion:

\dfrac{y}{10}=\dfrac{y+4}{15}      <em>cross multiply</em>

15y=10(y+4)    <em>use distributive property</em>

15y=10y+40       <em>subtract 10y from both sides</em>

5y=40           <em>divide both sides by 5</em>

\boxed{y=8}


\dfrac{x}{4}=\dfrac{6}{8}            <em>cross multiply</em>

8x=(4)(6)

8x=24           <em>divide both sides by 8</em>

\boxed{x=3}

3 0
3 years ago
An NFL coach sometimes uses a defense that utilizes 3 defensive linemen, 4 linebackers, and 4 defensive backs. His roster (the p
Alexandra [31]

Answer:

68,600

Step-by-step explanation:

The order of the players is not important. For example, a defensive line of Shaq Lawson, Ed Oliver and Jerry Hughes is the same as a defensive line of Ed Oliver, Shaq Lawson and Jerry Hughes. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Defensive Lineman:

3 from a set of 8. So

C_{8,3} = \frac{8!}{3!5!} = 56

56 combinations of defensive lineman

Linebackers:

4 from a set of 7. So

C_{7,4} = \frac{7!}{4!3!} = 35

35 combinations of linebackers

Defensive backs:

4 from a set of 7. So

C_{7,4} = \frac{7!}{4!3!} = 35

35 combinations of defensive backs

How many different ways can the coach pick the 11 players to implement this particular defense?

56*35*35 = 68,600

68,600 different ways can the coach pick the 11 players to implement this particular defense

7 0
3 years ago
What is the domain of the square root function graphed below?<br> x=-1 x&gt;/=-1
liq [111]

Answer:

im guessing -1

Step-by-step explain

well it would be greater than -1x-1

8 0
3 years ago
a scientist from chile has transported volcanic ash samples to be tested in his lab if the scientist has 3540 grams of volcanic
Digiron [165]
3,540 grams of ash
If its density is 2.75 g/cc and
density = mass / volume then its volume is

volume = mass / density
volume = 3,540 g / 2.75 g / cc
volume = <span> <span> <span> 1287.272727 cc
So, rounded it is 1,287.3 cubic centimeters but to keep the same number of significant figures, the volume is
</span></span></span>volume = <span> <span> <span> 1,287 cc</span></span></span>


7 0
3 years ago
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