Plz help! Are they right? The questions are below!

Answer:

a=-5, k=31

Step-by-step explanation:

Determine a and k so the given points are on the graph of the function:

(1,11) (2,-14)

[tex]y=a(x+1)^2+k[/tex]

To find the required values, we substitute the points into the equation:

[tex]11=a(1+1)^2+k[/tex]

[tex]-14=a(2+1)^2+k[/tex]

Operating:

[tex]11=a(2)^2+k[/tex]

[tex]-14=a(3)^2+k[/tex]

Simplifying:

[tex]11=4a+k[/tex]

[tex]-14=9a+k[/tex]

Subtract the second equation from the first equation:

[tex]11+14=4a-9a[/tex]

Simplifying:

[tex]25=-5a[/tex]

Solving:

[tex]a=25/(-5)=-5[/tex]

a=-5

Use this equation to find k:

[tex]11=4a+k[/tex]

[tex]11=4(-5)+k[/tex]

[tex]11=-20+k[/tex]

k=31

a=-5, k=31

Answer:

a = -5

k = 31

Plz Mark brainliest!!!

Answer:

The temperature of the sun is -498 K / meters square

Hope that helps!

Answer:

Um... Is this the real question or you just trolling???

Step-by-step explanation:

Answer:

352

Step-by-step explanation:

The terms

a₁ = 44 , a₃ = 88, a₅ = 176 are doubling each time, thus

a₇ = 2 × 176 = 352 ← the next term

Answer:

3

Step-by-step explanation:

Answer:

3rd graph

Step-by-step explanation:

Answer:

The third one

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

m=y2-y1/x2-x1

4-2=2

6-3=3

2/3

hope this helps =3

Answer:

The answer is 2/3

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

In that example the plane is going up constantly whereas in example B the plane in going down, in example C the plane it going up but the stops and goes at the same speed, and in D the plane it once again going down.

Answer:

?

Step-by-step explanation:

Answer:

a+12

Step-by-step explanation:

Distribute the -3 to (2a-4) so you get -6a+12

then it is 7a-6a+12, which is a+12.

If you need an actual number then a+12=0 is a=-12, if you just needed to simplify it, then a+12

Answer:A.,C.,D that is the answer

Step-by-step explanation:

Answer:

25% of 1250 = 312.5

35% of 1250 = 437.5

75% of 1250 = 937.5

Step-by-step explanation:

1250/100 = 12.5

12.5 * 25 = 312.5

12.5 * 35 = 437.5

12.5 * 75 =  937.5

1 3/4 = 1.75

13/4 = 3 1/4

3 1/4 = 3.25

1.75 < 3.25

1 3/4 < 13/4

Answer:

605.69 or if you round it 606 but that's the answer

False, the LCM of 50, 120 and 225 is 1800.

5 is the GCF of 50 120 and 225, not the LCM.

Hope it helps!

Answer:

The answer is False

Step-by-step explanation:

5 is the smallest number that can fit into all 3 numbers.

Answer:

there's no way to simplify 7/-4

in other formula it may be -4/7 but still can't be simplify.

in other way it will become a decimal

Step-by-step explanation:

1. Remember to make it as if it was a table.

2. Then you see if your #s are going decreasing or increasing(if they are decreasing that's a negative right there)

3.In the formula that I did the result of y is going over x but still works ;v

Answer:

67

Step-by-step explanation:

Answer:

35

Step-by-step explanation:

x + 55 = 90 (Right angle triangle)

x = 90 - 55

x = 35

Please mark as brainliest.

9514 1404 393

Answer:

  either

Step-by-step explanation:

They could represent either:

  2^2 = 4 . . . a rational number

  2^(1/2) = √2 . . . an irrational number

The fact that a number has an exponent does not make it either rational or irrational.

__

Additional comment

You can also consider irrational numbers with exponents.

  (∛2)^2 = 2^(2/3) . . . irrational

  (√2)^2 = 2^1 . . . . . . rational

[tex]x = \frac{2}{a} [/tex]

Step-by-step explanation:

3 ax + 4ax = 5ax + 4, combine like terms

7ax = 5ax + 4, minus 5ax from both sides

2ax = 4, divide 2a on both sides

you'll be left with x = 2/a

Answer: 10.60 cents

Step-by-step explanation:

23.85 divided by 9=2.65

2.65 is the cost of each Pane.

So 2.65 x 4= 10.60 cents

Hope this helps!

Your welcome (:

Answer:

I think 20

Step-by-step explanation:

480/24

The maximum number of chairs that the librarian can buy is 20

What are mathematics operations?

A mathematical operation is a function that converts a set of zero or more input values (also called "b" or "arguments") into a defined output value. The number of operands determines the operation's arity. Most commonly studied operations are binary operations (i.e., operations of arity 2), such as addition and multiplication, and unary operations (i.e., operations of arity 1), such as additive and multiplicative inverses.

• Zero-arity operations, or nullary operations, are constants, and mixed products are arity three operations, or ternary operations.

Since we are given the amount total budget and the total amount for the desks then the only variable missing is the maximum amount of chairs. This can be solved with the following equation in which :

s represents = the number of chairs,

and we simply solve for s.

800 = 320 + 24s  ... subtract both sides by 300

500 = 24s ... divide both sides by 24

20.83 = s

Now we see that the maximum number of chairs that the librarian can buy is 20 because 21 would make her go over the budget and you cannot have 0.83 of a chair.

Read more about mathematics operations at:

https://brainly.com/question/17869111

#SPJ2

50%

You need to convert the fraction (ratio)

Afterwards, you will get your answer!

I don't know how to upload or I would upload a picture of my work and how to do it to help you.

I hope this helps you!

Answer:

50percent

Step-by-step explanation:

75 is half of 150

Answer:

i love you

Step-by-step explanation:

Answer:

1/2(n-3) or (n-3)/2

Step-by-step explanation:

Answer:

hmmmmm

Step-by-step explanation:

I think two would round up to the tenth because one than tents

Answer:

3:10

Step-by-step explanation:

We know how many Smarties we have for all of the other colors, but those don't matter. What we need to find is the probability of pulling three RED smarties, if there are three red ones and 10 total ones, we know we have a chance at pulling only three red ones.

I hope this helps!

Answer:

sec 1A = tan 2A

Step-by-step explanation:

BABAOEY

Answer:

The graph and equation both match and are a function. there is one specific output fro each input

Step-by-step explanation:

Answer:

87.5% are pennies

Step-by-step explanation:

7/8 = 87.5%

Hope this helps!!