All categories

3 years ago

Pls simplify 9a+3b-4a-2b

Mathematics

2 answers:

Firlakuza [10]3 years ago

5 0

Answer:

its 5a+b don't report my answer because its correct

Step-by-step explanation:

Montano1993 [528]3 years ago

4 0

Answer:

5a+b

Step-by-step explanation:

You might be interested in

Which portion of the unit circle satisfies the trigonometric inequality cos^2theta + sin^2theta is greater than or equal to 1. A

liberstina [14]

Answer:

Only points on the circle satisfy the given inequality.

Step-by-step explanation:

Given: Unit circle

To find: portion of the unit circle which satisfies the trigonometric inequality $\sin ^2\theta +\cos ^2\theta \geq 1$

Solution:

In the given figure, OA = 1 unit (as radius of the unit circle equal to 1)

$\sin \theta$ = side opposite to $\theta$ /hypotenuse

$\cos \theta$ = side adjacent to $\theta$ /hypotenuse

$\sin \theta =\frac{AB}{AO}\\\sin \theta =\frac{AB}{1}\\AB=\sin \theta$

$\cos \theta=\frac{OB}{AO}\\\cos \theta =\frac{OB}{1}\\OB=\cos \theta$

So, coordinates of A = $\left ( \cos \theta ,\sin \theta \right )$

For any point (x,y) on the unit circle with centre at origin, equation of circle is given by $x^2+y^2=1$

Put $(x,y)=\left ( \cos \theta ,\sin \theta \right )$

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

So, $(x,y)=\left ( \cos \theta ,\sin \theta \right )$ satisfies the equation $x^2+y^2=1$

For points $(x,y)=\left ( \cos \theta ,\sin \theta \right )$ inside the circle, $\cos ^2\theta +\sin ^2\theta$

For points $(x,y)=\left ( \cos \theta ,\sin \theta \right )$ outside the circle, $\cos ^2\theta +\sin ^2\theta >1$

So, only points on the circle satisfy the given inequality.

4 0

3 years ago

Read 2 more answers

What is 353% as a decimal??

Brilliant_brown [7]

Answer: Your answer is 3.53 as a Decimal.

Hope this helps!

3 0

3 years ago

Read 2 more answers

A b c d thank youuuuuuuuuu

Vesna [10]

Answer:

$\frac{4x}{x-2}+\frac{7}{x-2}$

Step-by-step explanation:

The general rule for add or subtracting fractions is that the fractions must have a common denominator, meaning that the value under the fraction bar must be the same. This rule is also applicable for algebraic fractions.

Therefore, when the question asks "Which of the following can be added without altering any of the fractions?", one should be looking for two fractions with a common denominator. Thus the answer would be the first option, which is the following;

$\frac{4x}{x-2}+\frac{7}{x-2}$

4 0

3 years ago

Plz help question below

Anastasy [175]

The answer is x = 2

Hope this helps :)

8 0

4 years ago

10. Jackson hikes 220.2 meters up a

gogolik [260]

Since 220.2 meters is 60 percent or 3/5, do 220.2 divided by 3/5 which is 367 meters.

Ans: C