4 years ago

WILL MARK BRAINLIEST!!!!

Mathematics

1 answer:

zhuklara [117]4 years ago

6 0

1. arithmetic, arithmetic, geometric

2. 3, 6, 9, 12, 15

3. -7n + 5

4. 2.4

5. 45

6. 4n + 137

You might be interested in

HELP PLEASE SOMEONE ASAP

Afina-wow [57]

The correct answer is d

4 0

3 years ago

Read 2 more answers

The sum of three numbers is 130. the second number is 4 times the third. the third is less than 10

jarptica [38.1K]

Good evening ,

______

Answer:

x=85 ; y=36 and z=9

Look at the photo below for the answer.

6 0

4 years ago

Mike’s soccer team won 3/4 of its games. The team won 18 games. How many games did the team play?

kari74 [83]

A: 18 divided by 3/4

B:13-14 games. Hope this helped!

6 0

4 years ago

Read 2 more answers

A family has two cars. The first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of

Oxana [17]

first car is x

second car is y

25x+30y=1550

x+y=55

Multiply the second equation by -25 for elimination method to cancel out x

-25x-25y=-1375

Add the two equations

5y=175

y=35

Plug this value into the second equation

x+35=55

x=20

Final answers:

First car=20 gallons

Second car=35 gallons

8 0

3 years ago

How to solve this problem

Eddi Din [679]

Answer:

Solving the radical $\pm\sqrt{-81}$ we get $\mathbf{\pm9 \ i}$

Step-by-step explanation:

We need to express the radical $\pm\sqrt{-81}$ using the imaginary unit i

Prime factors of 81 are: 3x3x3x3

and $\sqrt{-1}=i$

Solving:

$\pm\sqrt{-81}\\=\pm\sqrt{81}\sqrt{-1}\\=\pm\sqrt{3\times3\times3\times3}i\\ =\pm\sqrt{3^2\times3^2}i\\=\pm3\times3\ i\\=\pm9 \ i$

So, Solving the radical $\pm\sqrt{-81}$ we get $\mathbf{\pm9 \ i}$

8 0

3 years ago