All categories

3 years ago

Can you help on number 2 please

Mathematics

2 answers:

REY [17]3 years ago

7 0

Hi!

The sum of all angles on a line is 180 degrees.

y = 180 - 2x

Hope this helps!

Nonamiya [84]3 years ago

3 0

It’s in it’s a 90 degree or a 45 degre because a 180 degree would be a line just a odniray so hope this helped it’s ok pick which answer you want that’s right

You might be interested in

If a line is horizontal, its slope is 1) 1 <br> 2) 0<br> 3) undefined <br> 4) negative

Marina86 [1]

Answer:

2) 0

Step-by-step explanation:

It is 0 because it remains constant and it is parallel to the x-axis

5 0

3 years ago

a car salesman purchased a car at an auction for $8,550. he will re-sell the car at a markup of $11,970. what is the percent inc

nlexa [21]

Answer:

40%

Step-by-step explanation:

You subtract 11,970-8,550 = 3,420 to isolate the increase.

Divide 3,420/8,550 = .4 to get the percent increase of the markup.

The answer is .4 or 40% (they are equivalent)

You can check my work by multiplying 8,550 * .4 = 3,420

This answer is the percent of 8,550 that it increased (40% of 8,550) so make sure that is what the question is asking. If it is then it's your answer.

7 0

3 years ago

Read 2 more answers

Alexa has some dimes and some quarters. She has a minimum of 28 coins worth a maximum of $5.05 combined. If Alexa has 17 quarter

Lerok [7]

Answer:

There are no possible solutions

Step-by-step explanation:

Given:

Minimum number of coins Alexa has =28 coins

Number of quarters Alexa has = 17 quarters

Total amount in coins = $5.05 = 505 cents

Let number of dimes be = $x$ coins

So we can have two inequalities.

1) Total number of coins

$x+17\geq28\\$ [Since minimum number of coins=28]

2) Total value of coins

$10x+(25)(17)\leq505$ [As 1 dime=10 cents and 1 quarter=25 cents]

$10x+425\leq505$

Solving inequality (1)

Subtracting both sides by 17.

$x+17-17\geq28-17$

∴ $x\geq 11$

Solving inequality (2)

Subtracting both sides by 425.

$10x+425-425\leq505-425$

$10x\leq 80$

Dividing both sides by 10.

$\frac{10x}{10}\leq \frac{80}{10}$

∴ $x\leq 8$

On combining both solutions

$x\geq 11$ and $x\leq 8$ ,

we see that there are no possible solutions as number of dimes cannot be ≥11 and ≤8 at the same time.

7 0

3 years ago

2.1x10 to the -3 power x 2x10 to the second power

ad-work [718]

Answer:

$4.2*10^{-1}$

Step-by-step explanation:

We want to simplify:

$2.1*10^{-3}\times 2*10^2$

We rewrite to get:

$2.1*2*10^2*10^{-3}\times10^2$

We now apply the laws of indices

$4.2*10^{-3+2}$

We simplify to get $4.2*10^{-1}$

We leave our final answer is scientific form.

The final answer is therefore:

$4.2*10^{-1}$

5 0

3 years ago

Kevin has $25. MP3 downloads cost $0.75 each. How many songs can he download and still have $13 left to spend? Write an inequali

vlada-n [284]

Hi there!

Inequality:
25 - 0.75x <= 13

Since x is the amount of MP3 downloads he can buy and each CD costs 0.75 dollars, and since the total price spent needs to be less than 13 dollars and the total amount of money he has is 25 dollars, this is the answer.

Hope this helps!

6 0

3 years ago

Read 2 more answers