3 years ago

I need help with 9 10 11

Mathematics

1 answer:

Inga [223]3 years ago

4 0

9= 30x+48
10= No they are not
11= 27+21x

You might be interested in

Example:

Aleonysh [2.5K]

Answer:

AB // CD and AD // BC, then ABCD is a parallelogram

Step-by-step explanation:

Step 2: Show AD // BC

A = (-3 , 3) and D = (0 , 0)

Find the slope of AD

$m_{AD}=\frac{0-3}{0--3}=\frac{-3}{3}=-1$

B = (2 , 5) and C = (5 , 2)

$m_{BC}=\frac{2-5}{5-2}=\frac{-3}{3}=-1$

The slope of AD = the slope of BC

So AD // BC because they have the same slope

Step 3:

Each two opposite sides are parallel in quadrilateral ABCD

So the quadrilateral is a parallelogram

8 0

3 years ago

X+y=6 x-y=2 x+y=6 x-y=2 2x=8 x=4 x+y=6 y=6-x y=6-4 y=2

Paul [167]

Answer:

4+2=6 4-2=6

Step-by-step explanation:

Y=2 6-2=4 4+2=6 4-2=2

4 0

4 years ago

2 people can make 2 bicycles in 2 hours.How many people are needed to make 12 bicycles in 6 hours.

Nikolay [14]

6
Explanation because you need 2 people for 2 bikes in 2 hours. You need to multiply by 2 and you get 6 for 12 hours

6 0

4 years ago

Bryan placed bricks in a row to make a boarder that was 16.9 feet long. Each brick is 1.3 feet long. How many bricks are in the

love history [14]

The answer to your question is A. 13

3 0

4 years ago

Read 2 more answers

What is the variance of the following set of data? 5 ,55 , 505, 255, 5, 75 , 85, 65

makkiz [27]

Answer:

27964.286

Step-by-step explanation:

i just used calculator soup

8 0

3 years ago

Read 2 more answers