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3 years ago

Find the product. -a 2 b 2 c 2(a + b - c)

Mathematics

1 answer:

ruslelena [56]3 years ago

3 0

Okay, are you saying:

-a = 2, b = 2, c = 2, solve (a + b + c)

or

-2a * 2b * 2c(a + b + c)

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scott is riding a bike course that is 50 miles long. So far, he has ridden 6 miles of the course. What percentage of the course

ad-work [718]

Scott has ridden 12% of the course.

Step-by-step explanation:

Length of bike course = 50 miles

Distance covered = 6 miles

Distance covered in percentage = $\frac{Distance\ covered}{length\ of\ bike\ course}*100$

Distance covered in percentage = $\frac{6}{50}*100\\$

Distance covered in percentage = $\frac{600}{50}$

Distance covered in percentage = 12%

Scott has ridden 12% of the course.

Keywords: percentage, distance

Learn more about percentages at:

#LearnwithBrainly

4 0

3 years ago

State the X- and Y- intercepts of each function. <br><br> -1/2x + 3y = -3

Dafna1 [17]

For the equation -1/2x+3y=-3
the x-intercept=6
the y-intercept=-1

7 0

3 years ago

Please help i cant do it

Digiron [165]

Answer:

The first one is 59049. The second one is 32

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A ribbon that is 22 3/4 inches long has to be divided into 7 equal pieces

denis-greek [22]

Answer:

3 1/4 inches

Step-by-step explanation:

22 3/4 ÷ 7

21÷7=3

1 3/4 = 7/4

7/4= 1/4+1/4+1/4+1/4+1/4+1/4+1/4

3 1/4 inches

4 0

3 years ago

Read 2 more answers

A signal light is green for 4 minutes, yellow for 10 seconds, and red for 3 minutes. If you drive up to this light, what is the

posledela

Answer:

0.56 is the required probability.

Step-by-step explanation:

Time for which signal shows green light = 4 minutes

Time for which signal shows yellow light = 10 seconds

Time for which signal shows red light = 3 minutes

To find:

Probability that the signal will show green light when you reach the destination = ?

Solution:

First of all, let us convert each time to same unit before doing any calculations.

Time for which signal shows green light = 4 minutes = 4 $\times$ 60 seconds = 240 seconds

Time for which signal shows yellow light = 10 seconds

Time for which signal shows red light = 3 minutes = 3 $\times$ 60 seconds = 180 seconds

Now, let us have a look at the formula for probability of an event E:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

Here, E is the event that green light is shown by the signal.

Number of favorable cases mean the time for which green light is shown and Total number of cases is the total time <em>(Time for which green light is shown + Time for which Yellow light is shown + Time for which red light is shown)</em>

So, the required probability is:

$P(E) = \dfrac{240}{240+10+180}\\\Rightarrow P(E) = \dfrac{240}{430}\\\Rightarrow \bold{P(E) \approx 0.56 }$

5 0

3 years ago