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2 years ago

Point Q has coordinates of (x, y). Point

Mathematics

1 answer:

Mumz [18]2 years ago

6 0

D. Kiddo remember your formulas the 90° clockwise is (x,y) -> (-y,x)

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Assume every 10-digit natural number is a possible telephone number except those that begin with 0, 1 or 2. What fraction of tel

lana [24]

Answer: 1/70

Step-by-step explanation:

This is a question that can also be interpreted as what is the probability of having the first number of a phone number to be 8 and the last number of the phone number to also be 8. This answer gives the fraction of the phone numbers that starts with 8 and end with 8.

Since three numbers (0,1,2) cannot start a phone number and we are left to pick from 7 numbers,

then the probability of figure "8" starting phone number = 1/7

Since all 10 numbers can possibly end a phone number,

then the probability of having figure "8" as the last digit of a phone number = 1/10

Hence probability of having "8" as the first and last digit of a phone number = fraction of total telephone numbers that begin with digit 8 and end with digit 8 = 1/7 × 1/10 = 1/70.

5 0

3 years ago

Unit rate feet per second 180 miles over 2 hours

Tatiana [17]

So that is equal to 180 miles per 2 hours which is 90 miles per hour if each hour has the same m/hr rate.
You can set up a proportion:
let x = number of miles per hour
$\frac{x}{180} = \frac{1}{2}$
cross multiply and you get
2x=180
divide both sides by 2 and you get
x=90
so you get the same answer both ways,
90 miles per hour

5 0

3 years ago

If Mike loses $5 per week, how much does he lose in 4 weeks?

MrMuchimi

Answer:

Step-by-step explanation:

$1week \: = 5 \\ 4 \: weeks = x \\ \\ x = 20$

hope this helps you.

Can I have the brainliest please?

Have a nice day!

7 0

3 years ago

X + 2 = 5x + 26 Please help

kkurt [141]

$x+2=5x+26$

Move all the x's to one side of the equation. This is a step necessary to solve this equation.

Subtract both sides by x.

$x+2-x=5x+26-x$
$2=4x+26$

Flip equation. We always want to have the variable written on the left side.

$4x+26=2$

Subtract both sides by 26.

$4x+26-26=2-26$
$4x=-24$

Divide both sides by 4 to finish this off.

$x=-6$

That's your answer. Have an awesome day! :)

7 0

3 years ago

Clara has less than $75. She wants to buy 3 pairs of shoes. What price shoes can Clara afford if all the shoes are the same pric

12345 [234]

Answer:$25

Step-by-step explanation:

Take 75 and divide it by 3 to get 25 dollars.

5 0

3 years ago

Read 2 more answers