All categories

2 years ago

9. Select all expressions that are

Mathematics

2 answers:

Kruka [31]2 years ago

7 0

Answer:

Step-by-step explanation:

2(9a - 6) = 2*9a - 2*6 = 18a - 12

Yes, it is equivalent.

6*(3a-2) = 6*3a - 6*2 = 18a - 12

Yes, it is equivalent.

-3(6a+4)= -3*6a + 4*(-3) = -18a - 12

No, not equivalent

3(6a+4) = 3*6a + 3*4 = 18a + 12

No, not equivalent

-3(4-6a) = -3*4 - 6a*(-3 ) = -12 + 18a = 18a - 12

Yes, it is equivalent.

Bogdan [553]2 years ago

3 0

Answer:

Step-by-step explanation:

2(9a - 6) = 2 × 9a + 2 × (-6)

= 18a - 12

6(3a - 2) = 6 × 3a + 6 × (-2)

= 18a - 12

- 3( 4 - 6a ) = - 3 × 4 + (-3) × (- 6a)

= - 12 + 18a = 18a - 12

You might be interested in

How to write 309,017 in word form

dalvyx [7]

Three hundred and nine thousand and seventeen

3 0

2 years ago

Read 2 more answers

Name the property of multiplication illustrated<br><br> 112 X 1 = 112

Nat2105 [25]

Answer:

Identity property

Step-by-step explanation: because the product of any number and one is that number

4 0

2 years ago

What is the equation in slope-intercept form of a line that passes through the points (5,3) (4,-3)

Darya [45]

Answer:

y=6x-27

Step-by-step explanation:

To find the slope of a line given 2 points; use this equation.

$\frac{y_2-y_1}{x_2-x_1} = \frac{rise}{run}$

(5,3) (4,-3)

$x_1 y_1$ $\\x_2 y_2\\\\$

$\frac{3 - (-3)}{4-5} =\frac{-6}{-1} = 6$

slope = 6

as for y-intercept use this method in the attachment

below

8 0

2 years ago

(05.02) PLEASE ACTUALLY ANSWER AND EXPLAIN WELL!! :)

Nadusha1986 [10]

Answer:

x = 40°

Step-by-step explanation:

Straight angle is equal to 180°

Angle x, 60° and 80° form a straight angle.

<u>Then we have following equation to solve for x:</u>

x + 60° + 80° = 180°
x + 140° = 180°
x = 180° - 140°
x = 40°

6 0

2 years ago

Read 2 more answers

10 i

salantis [7]

Answer:

opposite sides parallel and congruent theorum

Step-by-step explanation:

4 0

2 years ago