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makkiz [27]
3 years ago
9

Explain the rule for multiplying two negative integers. Use a number line or algebra tiles to illustrate three examples. Make a

sketch of your work.
Mathematics
1 answer:
Blizzard [7]3 years ago
4 0

Multiplying two negative numbers would always give you a positive product

Example 1) -2 * -1 = 2

Example 2) -5 * -4 = 20

Example 3) -10 * -3 = 30

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Nara got two new plants for her apartment. Each plant grew at a constant rate.
stira [4]

Answer:

Which plant was taller when Nara got the plants? C. They were equally tall

Which plant grew faster?  B. The second plant

Step-by-step explanation:

Slope of the first plant :

m = (y2 - y1)/(x2- x1)

m = (36 - 34)/(15 - 10) = 0.4

y-intercept of the first plant :

y = m*x + b

b = y1 - m*x1

b = 34 - 0.4*10 = 30

From the picture we can see that the y-intercept of the second plant is 30 cm

Y-intercept represents plant heights when Nara got the plants; then they were equally tall

From the picture we can see that second plant grew 2 cm in 2 days; then its slope is 2/2 = 1

Slope measures how fast each plant grew; then the second plant grew faster

7 0
3 years ago
A 30 inch board is to be cut into three pieces? a 30 inch board is to be cut into three pieces so that the second piece is 4 tim
Ostrovityanka [42]
Total length of the board = 30 inch 

Length of,

-- First piece = x

-- Second piece = 4x

-- Third piece = 5x

5x + 4x + x = 30

10x = 30 

x = 3

Therefore, the lengths of:

-- First piece = 3 inch

-- Second piece = 4*3 = 12 inch

-- Third piece = 5*3 = 15 inch
7 0
3 years ago
Can someone actually help me with this question? It's about: Complementary and supplementary angles (visual)
Sophie [7]
90-41 =49
So the answer to x =49 degrees
Complimentary angles are two angles that equal 90 that us why to solve we subtract 41 from 90
4 0
2 years ago
Simplify<br><br> 1/4 (-12+4/3)
garri49 [273]
Decimal form: -2.6666..
Fraction form: -2 2/3
8 0
3 years ago
Alexander is a stockbroker he earns 11% commission each week last week he sold $7,200 worth of stocks how much money did he make
AlekseyPX

Answer:

Last week Alexander earned $792 in commissions.

Step-by-step explanation:

Giving the following information:

Commission= 11%

Sales= $7,200

T<u>o calculate the total commission, we need to use the following formula:</u>

Total commission= commission rate*sales

Total commission= 0.11*7,200

Total commission= $792

Last week Alexander earned $792 in commissions.

3 0
2 years ago
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