Can someone please explain these to me??​

Answer:

y = -5x-19

Step-by-step explanation:

Use the point-slope formula to plug in the x1 and y1 and the slope -5 to get the equation y = -5x-19.

Formula: y-y1 = m(x-x1)

m = slope

x1 = x-value

y1 = y-value

Answer:

y=-5x-15

Step-by-step explanation:

starts off in point-slope form:

y+4=-5(x+3)

distribute the 5:

y+4=-5x-15

subtract 4 from each side:

y=-5x-20

^that answer is in slope intercept form.

Answer:

Step-by-step explanation:

Just times the -5/1 by 3 on both sides and then

add both of the fraction numbers so you can get =

-20/3 in improper fraction or -18 2/3 in mixed number form

or the decimal = −6.66666666667 I hope this helps you, have a great day!

Hope this helps! <3

Answer:

i think that the answer would be A

Step-by-step explanation:

Answer:

(4,10)

(this is because i have to fill in more characters apparently)

v < −5  or  v > 5

We know either v+8<3 or −8v<−40

Possibility 1

v+8<3

v+8−8<3−8

Subtract 8 from both sides

v<−5

Possibility 2

−8v<−40

−8v  −8  <  −40  −8

Divide both sides by -8

v>5

Answer:

Step-by-step explanation:

The given statement is the scale factor:

  [tex]\dfrac{\text{scale distance}}{\text{actual distance}}=\dfrac{1\text{ cm}}{2\text{ m}}[/tex]

This can be rearranged to the formula ...

  [tex]\text{actual distance}=\text{(scale distance)}\dfrac{2\text{ m}}{1\text{ cm}}[/tex]

Filling in the given scale distances, you find the actual distances to be ...

  [tex]\textbf{(a) }(14\text{ cm})\dfrac{2\text{ m}}{1\text{ cm}}=14\cdot2\text{ m}=28\text{ m}\\\\\textbf{(b) }(7.5\text{ cm})\dfrac{2\text{ m}}{1\text{ cm}}=7.5\cdot2\text{ m}=15\text{ m}\\\\\textbf{(c) }(12.4\text{ cm})\dfrac{2\text{ m}}{1\text{ cm}}=12.4\cdot2\text{ m}=24.8\text{ m}\\\\\textbf{(d) }(0.5\text{ cm})\dfrac{2\text{ m}}{1\text{ cm}}=0.5\cdot2\text{ m}=1.0\text{ m}\\\\[/tex]

Answer:

28 m

15 m

24.8 m

1.0 m

Step-by-step explanation:

Answer:

The vertex form of an equation of the parabola with vertex (-1,-3) is:

where a  could be any number, also -2,

Step-by-step explanation:

The vertex form of an equation of the parabola:  

                                                        y = a(x - h)² + k

vertex is (-1, -3)  so  h = -1,  k = -3

so:

   y = a(x - (-1))² + (-3)

   y = a(x + 1)² - 3

Answer

27

Step-by-step explanation:

12knllwe fwlk va;lmvbnlaemb,naerlgieg2

11 is the answer to the question

Answer: 11

Step-by-step explanation: grape :3 (hi Kadee)

Answer:

This expression is not factorable with rational numbers.

Step-by-step explanation:

The way factoring works, you just want to get it to its smallest form possible. To do that you would divide the entire problem by the Least Common Multiple.

This problem does not have a least common multiple. The LCM of 16 and 64 is 16 but x^2 does not have a number in front. 16k and 64 can be factored but in order to factor the entire problem, x^2 would need to have a number in front that made it divisible by a common multiple of 16 and 64.

Say if the problem was 2x^2+16k+64, you could divide the entire problem by 2. Your answer would be:

It is important to note that when you are factoring, never divide any exponents.

The way to check your work when factoring is to distribute the number outside of the parentheses. So in the example I just gave, you'd multiply everything in the parentheses, except the exponent, by 2. Which will give you the original 2x^2+16k+64.

Whatever number you factor out and end up putting outside your parentheses, should multiply back into the parentheses to give you the original problem. If it doesn't, then the factoring was done incorrectly.

Your answer should include parentheses.

Answer:

identity property of multiplication (multiplying a number by one will result in that number)

Step-by-step explanation:

Answer: 13x -8y

Hey there!

To get started we need to figure out what the equation is by remembering the sum is addition.

6x-y + 7x-7y

Then we need to combine like terms

(6x+7x) (-7y-y)

to get...

13x-8y

Answer:B

Step-by-step explanation:do a fraction with 2 -3.6 on top and 5- (-3) on bottom

Answer:

The decimal point.

Explanation:

in 484.5 the 5 is behind the decimal point. Meaning that it isn't quite a full number.

In 635.82 the 5 is in front of the decimal point. Meaning that this is a whole number.

In digit 484.5, 5 represents the 5 tenth and in digit 635.82, 5 presents 5 ones.

Place value is the estimation of a digit's value based on where it appears in a number

For instance, in digit 27, there are, 2 tens, and 7 ones.

The given digits are 484.5 and 635.82,

In the digit  484.5 the place value of 5 is 0.5 or 5 tenth,

In the digit 635.82 the place value of 5 is 5 or 5 ones.

Therefore, in digit 484.5, 5 represents the 5 tenth and in digit 635.82, 5 presents 5 ones.

To know more about Place value on:

https://brainly.com/question/27734142

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Answer:

x = -5/4

Step-by-step explanation:

3x= 5+7x    (subtract 7x from both sides)

3x - 7x = 5

-4x = 5    (divide both sides by -4)

x = 5/(-4)

x = -5/4

Answer:

I believe that the answer is that 13 students don't take any of the three classes.

Answer:

Step-by-step explanation:

Area is

Area is

(-8/3)/(-2/6)

negative times negative equals positive

simplify -2/6 to -1/3 AND FLIP THE -1/3 TO -3/1

-8/3*-3/1

cancel out the 3s and make them 1s

cancel out the negatives and make them positive

8/1 = 8

Answer:55.25 or 6.25

Step-by-step explanation:

Answer:

[tex]c=\frac{82}{3}-\frac{4}{3}d[/tex]

Step-by-step explanation:

1) Set up an equation

Let c be the number of CDs Nakisa bought.

Let d be the number of DVDs Nakisa bought.

[tex]328=12c+16d[/tex]

Explanation: Each CD costs $12 and each DVD costs $16. Nakisa spent $328 altogether, which means $12c+$16d is equal to $328.

The question is asking for the number of CDs that Nakisa bought, so our goal is to isolate c in the equation above.

2) Isolate c

[tex]328=12c+16d[/tex]

Subtract both sides by 16d

[tex]328-16d=12c+16d-16d\\328-16d=12c[/tex]

Divide both sides by 12

[tex]\frac{328-16d}{12}=\frac{12c}{12} \\\frac{82}{3}-\frac{4}{3}d=c[/tex]

[tex]c=\frac{82}{3}-\frac{4}{3}d[/tex]

I hope this helps!

Answer:

23

Step-by-step explanation:

Answer:

23

Step-by-step explanation:

Answer:

-2 =a

Step-by-step explanation:

6-4(a+2)=8+a

Distribute

6 - 4a - 8 = 8+a

Combine like terms

-2 -4a = 8+a

Add 4a to each side

-2-4a+4a=8+a+4a

-2 = 8+5a

Subtract 8 from each side

-2-8 = 8+5a -8

-10 = 5a

Divide each side by 5

-10/5 = 5a/5

-2 =a

Answer:

7.78 times if you round it

Step-by-step explanation:

The population of town A is 4.5 times greater than the population of town B.

The power of a number describes how many times a number is multiplied by itself.

Given are the population of two towns A and B.

Town A has a population of 1.26×10⁵ and the population of town B is 2.8×10⁴.

To find how many times greater is the population of Town A than the population of Town B we have divide the population of town A by the population of town B which is,

= ( 1.26×10⁵)/(2.8×10⁴) times greater.

= (12.6)/(2.8).                                       ( 10⁵ divided by 10⁴ is 10¹ which is 10)

= 4.5 times greater.

learn more about exponents here :

https://brainly.com/question/15993626

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answer:

72

step-by-step explanation:

your question doesn't make mathematical sense how can 12 = 6 then subract 90?

maybe you meant 12 + 6 - 90

if so

the answer is

72

(my work)

12 + 6 = 18

18 - 90 = 72

hope this helped <3

Answer:

yes it is true

hope my answer help you

Answer:

Mai

Step-by-step explanation:

To find the rate, you must determine who is going faster per minute. To do this, you must divide the total number of miles by the total number of minutes.

Mai: 5 miles / 15 minutes = 1/3 miles per minute

Jada: 4 miles / 14 minutes = 2/7 miles per minute

Then, use a common denominator to make calculations easier:

Mai: 1/3 * 7/7

Jada: 2/7 * 3/3

You should get:

Mai: 7/21 miles per minute

Jada: 6/21 miles per minute

By looking at this, you can see that Mai is traveling slightly faster, going more miles than Jada per minute.