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Alex777 [14]
2 years ago
5

Fourteen years time a mother will be twice as old as her son.Four years ago the sum of their ages was thirty .Find their ages

Mathematics
1 answer:
irina1246 [14]2 years ago
8 0

Answer:  the son is 18 and the mom is 22

Step-by-step explanation:

I dont know if this is correct but i tried my best to help!! :)

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A physical therapist is scheduling appointment for the day. She has six workers comp cases six Medicare patients awaiting care.
Molodets [167]

Answer:

Pr(3worker's comp cases and 4 Medicare patients) = 0.37879

Step-by-step explanation:

Number of worker’s comp cases = 6

Number of Medicare patients = 6

Total  number of people = 6 + 6 = 12

Total number of ways of selecting 7 people from 12 people = 12C7

Total number of ways of selecting 7 people from 12 people = \frac{12!}{(12-7)!7!}

Total number of ways of selecting 7 people from 12 people = 792 ways

Number of ways of selecting 3 worker's comp cases = 6C3

Number of ways of selecting 3 worker's comp cases =  \frac{6!}{(6-3)!3!}

Number of ways of selecting 3 worker's comp cases = 20 ways

Number of ways of selecting 4 Medicare patients= 6C4

Number of ways of selecting 4 Medicare patients =  \frac{6!}{(6-4)!4!}

Number of ways of selecting 4 Medicare patients = 15 ways

Pr(3worker's comp cases and 4 Medicare patients) = (15*20)/792

Pr(3worker's comp cases and 4 Medicare patients) = 300/792

Pr(3worker's comp cases and 4 Medicare patients) = 0.37879

4 0
3 years ago
Anybody know the anwser
Free_Kalibri [48]
<h3>I'll teach you how to find the period of f(x)=sin(x)</h3>

-------------------------------------------------------

A period of a sin is  is the length of one cycle.

The original period of the sine curve is 2π.

If x is multiplied by a constant that can change the answer of the period.

The period of the basic sine function f(x) = sin(x) is 2π.

Your Answer Is 2π.

plz mark me as brainliest if this helped :)

5 0
3 years ago
Read 2 more answers
Which graph represents the function h(x) = -(x+6)³-3?
jek_recluse [69]

The correct answer is option B which is the second graph in the image showing the function h(x) = -(x+6)³-3.

<h3>What is a graph?</h3>

A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data.

Given function:

h(x) = -(x+6)³-3.

The given function is cubic and cuts the x-axis at the point (-7.442,0) the graph is bending towards the left side in the second quadrant.

Therefore the correct answer is option B which is the second graph in the image showing the function h(x) = -(x+6)³-3.

To know more about graphs follow

brainly.com/question/25020119

#SPJ1

8 0
2 years ago
What is the simplified expression for -3(2x-y)+2y+2(x+y)
JulijaS [17]

Answer:

7y - 4x

Step-by-step explanation:

Given

- 3(2x - y) + 2y + 2(x + y) ← distribute parenthesis

= - 6x + 3y + 2y + 2x + 2y ← collect like terms

= 7y - 4x

7 0
2 years ago
Two people are driving to work at different constant speeds. The graph below shows the distance traveled over time by driver 1.
Luden [163]

Answer:

5 mph

Step-by-sep explanation:

To find of out the difference between the speed of the two drivers in miles per hour (not in miles per minute), first, calculate the unit rate or speed of driver 1 using the graph, and driver 2 using the table given.

Unit rate/speed = distance travelled/time = y/x.

Speed of Driver 1/unit rate:

The graph shows 1.5 miles (y) is travelled in 2 minutes (x).

Convert the 2 minutes to hour, you will have:

\frac{2}{60} = \frac{1}{30} hr

Speed in mph = \frac{y}{x} = \frac{1.5}{\frac{1}{30}} = 1.5*\frac{30}{1} = 45

Speed of Driver 1 in mph = 45 mph

Speed of Driver 2/unit rate:

The table shows 2.5 miles (y) is travelled in 3 minutes (x).

Convert the 3 minutes to hour, you will have:

\frac{3}{60} = \frac{1}{20} hr

Speed in mph = \frac{y}{x} = \frac{2.5}{\frac{1}{20}} = 2.5*\frac{20}{1} = 50

Speed of Driver 2 in mph = 50 mph

Difference between the speed of the two drivers = 50 - 45 = 5 mph

4 0
3 years ago
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