All categories

4 years ago

Find product for 5x(4x2)

Mathematics

2 answers:

torisob [31]4 years ago

5 0

Answer:

$20x^3$

Step-by-step explanation:

To find the product of the expression

$5x(4x^2)$

we must multiply both coefficients 5 and 4, and multiply the variables using the property:

$x^m*x^n=x^{m+n}$ ⇒ when multiplying a variable with different exponents, these exponents must be added (Note: $x=x^1$ )

So the product will be as follows

$5x(4x^2)=(5*4)(x*x^2)=20(x*x^2)=20x^{1+2}=20x^3$

The answer is $20x^3$

Dvinal [7]4 years ago

4 0

Answer:

the answer is 40

Step-by-step explanation:

5x(4x2)

5x8

You might be interested in

The length of one rectangle is 4 and the width is 2x-6. The length of another rectangle is 1/2 and the width is 6x+2. How much l

Assoli18 [71]

The answer is that the first one is not the longer one the second one is.
the first one equals 2
the second one equals 5

8 0

3 years ago

A man traveled a certain number of miles by automobile and then nine times as far by airplane. His total trip was 600 miles in l

telo118 [61]

Answer:

The person traveled 540 miles by plane and 60 miles by automobile.

Step-by-step explanation:

The options are not given to choose from, but this question can be solved as it will only have one answer.

Let the miles traveled by automobile be = x

Then, miles traveled by airplane will be = 9x

Now, the total trip length was = 600 miles

4 0

3 years ago

Aneesha travels at a rate of 50 miles per hour. Morris is traveling 3 feet per second less than Aneesha. Which is the best estim

astra-53 [7]

It would be nice to know some options, but here's Morris's speed.
Since Morris is traveling at three feet per second, we want to change it to per hour.
3 * 3600 = 10800 feet per hour
And we would want to convert that to miles per hour.
10800/5280 is about 2, more specifically 2.05 ish.
So Morris is traveling 2 mph less then 50, or about 48 mph.

3 0

3 years ago

Read 2 more answers

Drag the dots to plot (7 1/2, -2) (-3,7) and (2,0)

kirill115 [55]

Step-by-step explanation:

7 1/2 = 7 + 1/2 = 14/2 + 1/2 = 15/2 = 7.5

check the attached picture.

4 0

4 years ago

Consider an urn containing 8 white balls, 7 red balls and 5 black balls.

weqwewe [10]

Answer + Step-by-step explanation:

1) The probability of getting 2 white balls is equal to:

$=\frac{8}{20} \times \frac{7}{19}\\\\= 0.147368421053$

2) the probability of getting 2 white balls is equal to:

$=C^{2}_{5}\times (\frac{8}{20} \times \frac{7}{19}) \times (\frac{12}{18} \times \frac{11}{17} \times \frac{10}{16})\\=0.397316821465$

3) The probability of getting at least 72 white balls is:

$=C^{72}_{150}\times \left( \frac{8}{20} \right)^{72} \times \left( \frac{7}{20} \right)^{78} +C^{73}_{150}\times \left( \frac{8}{20} \right)^{73} \times \left( \frac{7}{20} \right)^{77} + \cdots +C^{149}_{150}\times \left( \frac{8}{20} \right)^{149} \times \left( \frac{7}{20} \right)^{1} +\left( \frac{8}{20} \right)^{150}$

$=\sum^{150}_{k=72} [C^{k}_{150}\times \left( \frac{8}{15} \right)^{k} \times \left( \frac{7}{15} \right)^{150-k}]$

5 0

1 year ago

Read 2 more answers