All categories

3 years ago

#20. I’m confused with letter D. How is that a property?

Mathematics

1 answer:

Anarel [89]3 years ago

6 0

property and equasion are related words. for instance, 20=4x5

the prudct is 20 and the factors are four and five

plz mark brainliest

You might be interested in

3/8 + 4/8 = ? please help

maksim [4K]

The answer is going to be 7/8. hope that helped

4 0

3 years ago

Read 2 more answers

Use algebraic rules of equations to predict the solution to the system of equations. Include all of your work for full credit.

bezimeni [28]

Use substitution
x+(2x-1)=-4
3x-1=-4
3x=-3
x=-1

7 0

3 years ago

Find the exact value of cos theta, given that sin thetaequalsStartFraction 15 Over 17 EndFraction and theta is in quadrant II.

vova2212 [387]

Answer:

$cos \theta = -\frac{8}{17}$

Step-by-step explanation:

For this case we know that:

$sin \theta = \frac{15}{17}$

And we want to find the value for $cos \theta$ , so then we can use the following basic identity:

$cos^2 \theta + sin^2 \theta =1$

And if we solve for $cos \theta$ we got:

$cos^2 \theta = 1- sin^2 \theta$

$cos \theta =\pm \sqrt{1-sin^2 \theta}$

And if we replace the value given we got:

$cos \theta =\pm \sqrt{1- (\frac{15}{17})^2}=\sqrt{\frac{64}{289}}=\frac{\sqrt{64}}{\sqrt{289}}=\frac{8}{17}$

For our case we know that the angle is on the II quadrant, and on this quadrant we know that the sine is positive but the cosine is negative so then the correct answer for this case would be:

$cos \theta = -\frac{8}{17}$

5 0

3 years ago

The congruent sides of an isosceles triangle are called ____, and the third side is called the _____.

In-s [12.5K]

Answer:

Step-by-step explanation:

Congruent sides are called legs.

Third side is called the base.

4 0

3 years ago

HELP WILL MARK BRAINLIEST!

denpristay [2]

Answer:

All the exponents in the algebraic expression must be non-negative integers in order for the algebraic expression to be a polynomial. As a general rule of thumb if an algebraic expression has a radical in it then it isn't a polynomial

so no its not.

3 0

3 years ago

Read 2 more answers