3 years ago

Simplify the expression: - 3d + -9d + 5d

Mathematics

1 answer:

Gnom [1K]3 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

Please help am stuck on this

Marina86 [1]

Answer:

-3,-2,-1,0,1,2,3,4,5

8 0

3 years ago

Read 2 more answers

Rina draws a plan of her school on a coordinate grid. She plots the school gate at point p(-8,-1) and the library at point Q(2,5

natka813 [3]

Answer:

The coordinates of the science lab is:

x = -14/3 , y = 1

Step-by-step explanation:

∵ P is (-8 , -1) and Q is (2 , 5)

∵ The point of the science lab is (x , y)

∵ The science lab point divided PQ at ratio 2 : 1 from Q (two thirds PQ)

∴ $x=\frac{m_{1}x_{p}+m_{2}x_{q}}{m_{1}+m_{2}}$

∴ $y=\frac{m_{1}y_{p}+m_{2}y_{q}}{m_{1}+m_{2}}$

∴ $x=\frac{2(-8)+1(2)}{1+2}=\frac{-14}{3}$

∴ $y=\frac{2(-1)+1(5)}{2+1}=\frac{3}{3}=1$

∴ The point of science lab = (-14/3 , 1)

5 0

3 years ago

A = 8, b = 15, C = 17

svetoff [14.1K]

Answer:

yes, if this is not how you do it i am sorry i tried :(

Step-by-step explanation: Because 8 squared is 64, 15 squared is 225 and 17 squared is 289, 64+225=289 so it will form a right triangle and 289 squared is 17.

7 0

3 years ago

Gio hiked six miles in two hours. At this rate, what is the total number of miles Gio could hike in nine hours?

Anestetic [448]

Answer:

27 miles

Step-by-step explanation:

3 mph is rate speed,

3 x 9 = 27 miles

3 0

3 years ago

Read 2 more answers

Identify name and degree of each polynomial, please.<br> (4x³+5x²-x)+3x²+2x²)<br> Thank you

algol [13]

Answer:

PREVIEW

2:48

How do you find the degree of a polynomial

Step-by-step explanation:

4 0

3 years ago