All categories

2 years ago

2X -5+3a - 5X +2a Help

Mathematics

1 answer:

Katen [24]2 years ago

6 0

Answer:

1. 2x can be seen as +2x therefore when you put it as +2x-5x the answer will be - 3x

2. +3a+2a also equals +5a

3. - 5 is left alone and there is no other similar expression

Put them together the answer becomes

-3x+5a-5

It doesn't have to be the same order of format but the numbers must be as such

You might be interested in

Find the probability that a randomly

Alina [70]

Answer:

$31.8\%$

Step-by-step explanation:

The area of the circle is $A=\pi r^2=\pi(4)^2=16\pi$

The area of the triangle is $A=\frac{bh}{2}=\frac{8*4}{2}=\frac{32}{2}=16$

Hence, the probability of a randomly selected point within the circle falls in the red shaded area is $\frac{16}{16\pi}=\frac{1}{\pi}\approx0.318\approx31.8\%$

6 0

2 years ago

A line passes through the point (4, –6) and has a slope of Negative three-fourths. Which is the equation of the line?

marissa [1.9K]

Answer:

y = -3/4x - 3

Step-by-step explanation:

...................

8 0

3 years ago

Becky spent 3/4 of an hour practicing the piano.She spent 1/2 of that time practicing her recital piece. What fractional part of

Ber [7]

Answer:

3/8

Step-by-step explanation:

First,

convert 3/4 of an hour to minutes;

If 1 hr = 60 mins

then 3/4 of 1hr = $\frac{3}{4} *60\\ \\ =45 mins.Next, If 1/2 of 3/4 was spent practicing recital piece, it means that it is half of 45 mins;1/2 *45 = 22.5 minsLastly, convert the 22.5 mins into a fraction of an hour;22.5/60 = [tex]\frac{3}{8}$

3 0

3 years ago

Label each angle as acute, obtuse, right, or straight and estimate the measure in degrees.

nlexa [21]

Answer:

7) Obtuse, I didn't use a protractor, so I'm estimating about 130 degrees.

8) Straight, all straight lines are equal to 180 degrees.

9) Acute, I estimated about 30-40 degrees, again, no protractor used.

Step-by-step explanation:

8 0

3 years ago

How many times larger is 3x10^8 than 3x10^2

muminat

3x10^8 is 7 times larger than 3x10^2

3 0

3 years ago