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3 years ago

Choose one of the factors of 1331x3 – 8y3.

Mathematics

1 answer:

jenyasd209 [6]3 years ago

3 0

B is the answer hope this helps :)

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What is the area of the right triangle 5 centimeters high with a base of 9 centimeters

seropon [69]

The area of the given right triangle is: 22.5 cm².

<h3>How to Find the Area of a Right Triangle?</h3>

The area of a right triangle with a base of "b" and an height of "h" can be determined using the following formula:

Area of triangle = 1/2bh = 1/2(base)(height).

Given that the right triangle has the following dimensions:

Height (h) = 5 cm

Base (b) = 9 cm

Area of triangle = 1/2bh = 1/2(5)(9)

Area of triangle = 1/2(45)

Area of triangle = 22.5 cm²

Thus, the area of the right triangle is: 22.5 cm².

Learn more about the area of triangle on:

brainly.com/question/21735282

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8 0

1 year ago

What would be the equation for "two times x subtracted by x squared"?

IRINA_888 [86]

Answer:

$\Huge \boxed{-x^2+2x}$

Step-by-step explanation:

2 times x subtracted by x².

$\Rightarrow 2 \cdot x-x^2$

$\Rightarrow 2x-x^2$

Rearranging the expression.

$\Rightarrow -x^2+2x$

4 0

3 years ago

Read 2 more answers

Use the value of the linear correlation coefficient r to find the coefficient of determination and the percentage of the total v

sergiy2304 [10]

Answer:

Step-by-step explanation:

Given that $r = 0.952$

We have coefficient of determination

$r^2 =0.952^2\\=0.906304$

=90.63%

This implies that nearly 91% of variation in change in dependent variable is due to the change in x.

The coefficient of determination is the square of the correlation (r) between predicted y scores and actual y scores; thus, it ranges from 0 to 1.

An R2 of 0 means that the dependent variable cannot be predicted from the independent variable.

An R2 of 1 means the dependent variable can be predicted without error from the independent variable.

5 0

3 years ago

James owes his mom $47. He earned $26 for mowing his neighbor’s lawn and then lent his sister $13. Which expression represents J

nevsk [136]

I would think B. Because he is still $47 in debt and he lent 13 so he has 13 left.

7 0

3 years ago

to estimate the speed of a car, v, in miles per hour, based on the length, L, in feet, of its skid marks when suddenly braking o

Leno4ka [110]

Answer:

69.6 miles per hour

Step-by-step explanation:

Length of the skid marks = 242 feet

The formula used for the velocity is

$v=2\sqrt{5L}$

where, L is the length of skid marks in feet and the velocity obtain has the units of miles per hour.

By substituting the value

$v=2\sqrt{5\times 242}$

v = 69.6 miles per hour

Thus, the speed of the car at the time of accident is 69.6 miles per hour.

5 0

3 years ago