2 years ago

Another geometry question♥♥

Mathematics

1 answer:

storchak [24]2 years ago

4 0

Set the 2x - 1 equal to 9 then work backwards. 2x - 1 = 9 Nine minus one is eight divided by two is four. X = 4

You might be interested in

3(5+3)^2 +14<br><br><br> help me pls i cannot deal w my parents again

Scilla [17]

Answer:

206

Step-by-step explanation:

I put it in a calculator

6 0

3 years ago

Read 2 more answers

ace wants to buy clothes for his birthday. He has $40. He purchase a white shirt for $14. He spends the rest of his money on bla

anygoal [31]

Answer:

14+ 8n<40

Hope this helps

7 0

3 years ago

I really need help, I haven't been to school In a while and I kinda forgot what to do. So If anyone is kind enough, please help

marissa [1.9K]

Answer:

P = 20x + 6y + 10

Step-by-step explanation:

The perimeter (P) of the figure is the sum of the sides , that is

P = 2x - y + 3x + 5y + 12 + 6x + 9x + 2y - 2 ← collect like terms

= 20x + 6y + 10

3 0

2 years ago

A lock has a three number code made up of 17 numbers if none of the numbers are allowed to repeat how many different ways can yo

Marrrta [24]

Answer:

680

Step-by-step explanation:

Use the binomial coefficient where you choose $k=3$ numbers out of $n=17$ possible numbers and find the total amount of combinations since order does not matter:

$\displaystyle \binom{n}{k}=\frac{n!}{k!(n-k)!}\\ \\\binom{17}{3}=\frac{17!}{3!(17-3)!}\\\\\binom{17}{3}=\frac{17!}{3!(14)!}\\\\\binom{17}{3}=\frac{17*16*15}{3*2*1}\\\\\binom{17}{3}=680$

Thus, you can make 680 three-non-repeating-number codes

8 0

1 year ago

Find the distance between ( - 10 , - 7 ) and ( - 8 , 1 ).

nevsk [136]

Answer:

The distance point between (-10, -7) and (-8, 1) is 6

Step-by-step explanation:

8 0

2 years ago