Plz help need step by step

Answer:

A

Step-by-step explanation:

Answer:

The second choice.

Step-by-step explanation:

1/5 = 20%

2/5 = 40%

3/4 = 75%

Answer:

The answer is the second option, X= 1/5, Y= 2/5, Z= 3/4

Answer:

the aswer is 32

Step-by-step explanation:

The vertex of the parabola described by the equation 3y=2x^2-16x+18 is (m,n). the sum of m + n is 178/27.

To find the vertex of the parabola described by the equation 3y = 2x^2 - 16x + 18, we first need to put the equation in the standard form of a parabola, which is y = a(x - h)^2 + k, where (h, k) represents the vertex.

Let's begin by dividing the entire equation by 3 to simplify it:

y = (2/3)x^2 - (16/3)x + 6

Now, we need to complete the square to rewrite the equation in the form y = a(x - h)^2 + k:

y = (2/3)(x^2 - (8/3)x) + 6

Next, we need to find the value that completes the square for the expression inside the parentheses. To do that, we take half of the coefficient of x and square it:

(8/3) / 2 = 4/3

(4/3)^2 = 16/9

Now, we add and subtract 16/9 inside the parentheses:

y = (2/3)(x^2 - (8/3)x + 16/9 - 16/9) + 6

Now, we group the first three terms and factor the perfect square trinomial:

y = (2/3)((x - 4/3)^2 - 16/9) + 6

Next, distribute the (2/3):

y = (2/3)(x - 4/3)^2 - (2/3)(16/9) + 6

Now, simplify:

y = (2/3)(x - 4/3)^2 - (32/27) + 6

Finally, bring everything together:

y = (2/3)(x - 4/3)^2 + (142/27)

Now we can see that the vertex of the parabola is at the point (h, k) = (4/3, 142/27).

To find m + n, we simply add the x-coordinate (h) and the y-coordinate (k):

m + n = 4/3 + 142/27

To add these fractions, we need to find a common denominator, which is 27. Convert 4/3 to have a denominator of 27:

4/3 = (4/3) * (9/9) = 36/27

Now we can add the fractions:

m + n = 36/27 + 142/27

m + n = (36 + 142)/27

m + n = 178/27

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Answer:

20-f

Step-by-step explanation:

Answer:

I believe it is 5^4 -f

Step-by-step explanation:

Answer:

a. 4 pages per minute

b. one forth of a minute or 15 seconds

Step-by-step explanation:

a. divide total pages by minutes 50/12.5

b. divide minutes by pages 12.5/50

Answer:

Quadrant IV

Step-by-step explanation:

(+, +) -> Quadrant I

(-, +) -> Quadrant II

(-, -) -> Quadrant III

(+, -) -> Quadrant IV

Answer:

0.75, -3/4, -1.8, -3, -3.5

Step-by-step explanation:

Answer:

0.75, -3/4, -1.8, -3.5

Hope this helps :)

Step-by-step explanation:

-3/4 is also -0.75

Answer:

1.61y=x

Step-by-step explanation:

Answer:

Step-by-step explanation:

5(X+2) =  5x +10 +10  5x=10-10=-20

-20/5=  -4

to be honest these might not be right but maybe 2

Answer:

it is a 5% sales tax

Step-by-step explanation:

12/240= 0.05

0.05 x 100 = 5%

Answer:

is d i did the test c is wrong

Step-by-step explanation:

Answer:Isaac applied the distributive property in Step 2.

Answer:

a

Step-by-step explanation:

step shows where Isaac applied the distributive property

Answer:

20.30

Step-by-step explanation:

if you multiply 12.40 to 7.90 u will get 20.30

Answer:

im not good at math

Step-by-step explanation:

Answer:

3^-1, square root of 9, -0.25, and 0.6

Step-by-step explanation:

Rational numbers are numbers that you can turn into fractions.

3^-1 = 0.3333333333... which is also known as 1/3

square root of 9 = 3, which can be written as 3/1

-0.25 can be written as -1/4

0.66666666... = 2/3

The numbers 3⁻¹ , sqrt(9), -0.25 and 0.6 are the rational numbers.

A number system is defined as a system of writing to express numbers.

The rational numbers are those that can be expressed as a ratio of two integers.

3⁻¹ = 1/3, which is a rational number.

sqrt(12) = sqrt(4 x 3) = 2sqrt(3), which is irrational.

sqrt(9) = 3, which is a rational number.

-0.25 = -1/4, which is a rational number.

pi is irrational.

0.6 = 3/5, which is a rational number.

Hence, 3⁻¹ , sqrt(9), -0.25 and 0.6 are the rational numbers.

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Answer:

243

Step-by-step explanation:

that's I did was find what 130% of 810 was and I found it was 1053 so then I subtracted it by 810 to find 243

sorry if I'm wrong

Answer:

8.82 feet

Step-by-step explanation:

Explanation:

Let's set up the ratio. We know that the actual length of the ship was 882 feet and we want to know how long the model will be. We also have a ratio of 1 model length to every 100 actual length. So we can write this as:

Model length

Ship length

=

1 Model length

100 actual length

And we can drop in some numbers (I'll also put in the variable

x

to represent the length of the ship model):

x

882

=

1

100

Let's cross multiply to solve for x:

100

x

=

882

x

=

8.82

feet

Answer:

216cm

Step-by-step explanation:

i think that's right

Answer:

23,356

Step-by-step explanation:

You have to add 14,312 and 8,944 to get the total population.

Answer:

The answer is on google.

Step-by-step explanation:

Answer:

C. 11

Work:

y=number of misses

x=number of scores

Points: 2x-0.5y=2(7)-0.5(6)=14-3=11

Hope this helps; please vote brainliest.

Answer:

I think flip and rotate

D=A which means D gets to the spot where A is.

Answer:

15

Step-by-step explanation:

LEtS Do It PrOpeRly

90=5x+1x

90=6x

x=

[tex] \frac{90}{6} [/tex]

if we divide 90÷6=15

Answer:

C. No, it is not a proportional relationship because the graph is not a straight line

Step-by-step explanation:

Answer:

I hope this helps

Step-by-step explanation:

a/b=c/d

If we can simply multiply

we have!

a x d = c x b

= ad = cb

Answer:

C

Step-by-step explanation:

It's the only one where an x-axis has more than one y-axis.

I hope this explanation helps.