All categories

2 years ago

Use the expression 5a – 2b – 3 + 2b – 6a.

Mathematics

1 answer:

ella [17]2 years ago

4 0

Answer:

5a + (-6a) + (-2b) + 2b + (-3) = -a -3 or -(a + 3) so first answer is correct because -(a + 3) is the same as -(3 + a)

Step-by-step explanation:

You might be interested in

To the Pythagorean Theorem

Aloiza [94]

Answer:

x = 29

Step-by-step explanation:

$c^{2} = a^{2} + b^{2}$

$c^{2} = 20^{2} + 21^{2}$

$c^{2} = 400 + 441$

$c^{2} = 841$

$\sqrt{c^2} = \sqrt{841}$

$c = 29$

4 0

2 years ago

Name the property or properties illustrated by the statement if x+5=3 and 3=y, then x+5=y

oee [108]

It is substitution. Because you are substituting 3=y into x+5=3

3 0

3 years ago

You place a billiard cue against a billiard table. The foot of the billiard cue is 15 cm away from the table and the top of the

Luba_88 [7]

Answer:

-4

Step-by-step explanation:

The billiard cue is 15 cm away from the table

This refers to coordinates of (15, 0)

The billiard cue touches the table at a point 60 cm off the ground

This refers to coordinates of (0, 60)

The slope is as per slope formula;

m = (60 - 0)/(0-15) = 60/ -15 = -4

Thea answer is -4

6 0

3 years ago

Read 2 more answers

AC=(5x+12) and BD =8x? Can somebody help me to slove it

AleksAgata [21]

To solve this equation from the information given above, I ordered it 5x+12=8x. To solve, I subtracted 5x from each side, canceling the 5x to your left, leaving only the number 12. 8x minus 5x equals 3x. Take 3x and divide on both sides. 3x/3x cancels the 3, leaving 12/3 equals 4. Finally, x equals 4.

3 0

3 years ago

Find the equation of the line passing

Paraphin [41]

Rearrange the formula given to determine the slope, you will see that in y=mx+b form the slope is -2/3
You now have the slope (m) and two test points. Input those values into y=mx+b and you will have your answer!
I got y=(-2/3)x+(22/3) which I'm quite certain is correct.

8 0

3 years ago