What are the domain and range of f(x)=(1/5)x

Answer:

k = 1

Step-by-step explanation:

English Translation

Find k if the point P (-1, 2k + 1) belongs to the graph of the function f (x) = - 4x^2 + 7.

The function is given as

y = f(x) = -4x² + 7

and point (-1, 2k+1) lies on the graph.

This point means that, at x = -1, y = 2k+1

y = -4x² + 7

Substituting the values in

2k + 1 = -4(-1)² + 7

2k + 1 = -4 + 7 = 3

2k = 3 - 1

2k = 2

k = 1

Hence, the point (-1, 2k+1) is (-1, 3)

To check,

y = -4x² + 7

3 = -4(-1)² + 7

3 = -4 + 7

3 = 3

So, this is truly correct.

Hope this Helps!!!

Answer:

81 and 100

Step-by-step explanation:

9 x 9 = 81

and...

10 x 10 = 100!

The others doesn't match the rules stated-

3 x 8 = 24, 2 x 12 = 24, 4 x 6 = 24, but no number that are the same multiply together to equal 24(that's also an integer)

All the others are the same way-

Hope this helps!

Answer: 27, 81, 100

Those are the answers.

Answer:

14 9/18 (or

Step-by-step explanation:

The sum of 7/18 + 14 1/9 are

7/18 + 14 1/9

7/18 + 14 2/18 <= Make the fraction the same denominator

14 9/18 <= Simplify the Fraction

14 1/2

Hope this helps! Make sure to give me the brainliest answer, if you like my answer. It will be greatly appreciated!

Answer:

14 1/2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Model of the frog jump is

h = -6t² + 6t

When will the frog be on the ground? The frog will be on the ground at h=0

Therefore,

0 = -6t² + 6t

Divide through by 6

0 = -t² + t

0 = t(-t + 1)

So, t = 0 OR. 0 = -t + 1

So, t = 0. OR. t = 1

So, we should note that, at t = 0, was when he wanted to lift of from the ground... So, t = 0 will be discarded

So, at t = 1 is when the frog is back to the ground.

It is like it starts from the ground at the 0 seconds and get backs to the ground at 1 seconds

I hope this helps!!!

On April 11, 2020, Adopt Me! reached 1,615,085 concurrent Roblox players, making it the first and only game as of now to cross the 1 million concurrent players mark.

Answer:

On April 11, 2020

Step-by-step explanation:

I think sorry if i'm wrong

[tex]\frac{0.25}{-0.25}[/tex] simplified will give us -1.

It's not a whole number, because it's negative. It isn't irrational because there is a determined answer. While it is rational, it more fits into integer - which is a less broad scope than rational.

Answer:

the second one

Step-by-step explanation:

the second one

Answer:

The second one

Answer:

b

Step-by-step explanation:

The two regular pentagons could be differnt sizes, so they are not all congruent hope this helps :)

Answer:

a,c and e are right on edge

Answer:

2

Step-by-step explanation:

The slope is always whatever you multiply your x value by.

Answer:

20%

Step-by-step explanation:

Step-by-step explanation:

When you check in percentage calculator the answer is 6.25

Answer:

441[tex]\pi[/tex]

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

I think c MAYBE dont quote me on it tho

Answer:

3 cm

Step-by-step explanation:

Because 9 divided in 3 is 3 and if you used 1/3 it’s 3cm

Answer:

no

Step-by-step explanation:

if you multiply 4 by -3 you get -12 tho

Answer:

0.52

Step-by-step explanation:

because 0.485 rounds up to 0.49 or up by tenths would be 0.50

which is still less than 0.52

Hope this helps!

Answer:

0.52

Step-by-step explanation:

Which number is higher 4 or 5. Just because it of a decimal doesn’t mean the greatness of the number changes.

Hope this helps

Please mark me as Brainliest

Given:

A rectangular wall with 2 windows and a 1 door.

To find:

The area of the wall and the amount of paint required to cover the wall.

Solution:

The area of the wall can be determined by subtracting the areas covered by the windows and the door from the area of the entire wall.

The entire wall has a length of 12 feet and a width of 8 feet.

The area of a rectangle [tex]=(l)(w).[/tex]

The area of a square [tex]= a^{2} .[/tex]

The entire wall's area [tex]= (12)(8)= 96[/tex] square feet.

The door has a length of 3 feet and a width of 6 feet.

The area of the door [tex]=(3)(6)=18[/tex] square feet.

The windows are in the shape of a square.

The side length of the windows is 2 feet.

The area of a window [tex]= 2^{2} =4[/tex] square feet.

The area of 2 windows [tex]= 2(4) = 8[/tex] square feet.

The area of the wall [tex]=96-18-8=70[/tex] square feet.

If a quart of extra-thick exterior paint covers 30 square feet, then 70 square feet will need;

The paint needed to cover 70 square feet [tex]= \frac{70}{30} = 2.333[/tex] quarts.

So the area of the wall was 70 square feet and 2.333 quarts of extra-thick exterior paint is required to cover the wall.

Answer:

3/4

Step-by-step explanation:

Answer:

P(A | B) = P(A and B)/P(B)

1/3 = (1/3)/P(B)

P(B)=3/4

Step-by-step explanation:

EDMENTUM

Answer:

100

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

115.9 is closer to 100 then it is to 200, so round down to 100

Answer:

0.75

Step-by-step explanation:

9/12 equals 3/4 which is 0.75

Answer:

0.75

Step-by-step explanation:

First, you would need to convert it to a fraction for it says "of the", which is one of the key words to a fraction.

In fraction form it would look like this:

9/12

Now, if you remember, fractions are actually division; meaning this problem is also 9 divided by 12. So let's do that!

9 divided by 12 = 0.75.

You can also simplify the fraction; 9/12 is the same as 3/4, and you should know that 3/4 is the same as 0.75

Answer:

i have no idea ask one of your dorm roomates.

Step-by-step explanation:

Quarterly Rate means the per annum interest rate to be determined for the Bonds on a quarterly basis and the quarterly rate of population increase [tex]0.00447[/tex].

What is quarterly?

If the rate of interest is annual and the interest is compounded quarterly then the number of years [tex](n)[/tex]  is  [tex]4 times[/tex]  and the rate of annual interest [tex](r)[/tex] is one-fourth.

Here given that the annual rate is [tex]r=0.018[/tex].

And the exponential growth function is

[tex]y=a(1+r)^{x} ...(1)[/tex]

where [tex]a[/tex] is the initial amount

and  [tex]r[/tex] is the rate of growth.

So, By equation [tex](1)[/tex], we get

[tex]y=a(1+0.018)^{t}\\y=a(1.018)^{t}[/tex]

The quarterly growth rate, the exponent is the number of quarters in [tex]t years[/tex] or [tex]4t[/tex].

So, by multiplying the exponent by [tex]\frac{4}{4}[/tex], the [tex]4t[/tex] represents the number of quarters

[tex]i.e., y=a(1.018)^\frac{4t}{4}\\y=a(1.018^\frac{1}{4})^{4t}\\y=a(1.00447)^{4t}\\[/tex]

Hence, the quarterly growth rate is [tex]1.00446[/tex], now we subtract it with [tex]1[/tex] so it is of the form:-

[tex]1.004477-1=0.00447[/tex]

which implies that the population is increasing.

To learn more about quarterly

https://brainly.com/question/19592579

#SPJ5

Answer:

Once the number of possible heads and tail in 12 tosses is [tex]2^{12} =4096[/tex]

[tex]\frac{12!}{\left(7!\right)\left(5!\right)}\\\\\frac{12\cdot \:11\cdot \:10\cdot \:9\cdot \:8}{5!}\\\\\frac{95040}{120}\\\\792[/tex]

So the probability of getting exactly  8  heads in  12  coin tosses is: [tex]\frac{792}{4096}[/tex]

Answer:

Step-by-step explanation:

B) 360 in²

3 rectangles + 2 triangles

(10×12) + (10×13) + (10×5) + 2(½×12×5)

= 120 + 130 + 50 + 60

= 360 in²

Answer:

h > 3

Step-by-step explanation:

If h is Margrets' height then her height is greater than 3 or h > 3

Answer:

[tex]x^2-12x+27 =0[/tex]

Step-by-step explanation:

Given a Parabola that intersects the x-axis at x=3 and x=9.

I presume you want to determine the equation of the parabola.

You can use this form:

Given roots of a parabola, the equation of the parabola is derived using the formula:

[tex]x^2-($Sum of Roots)x+Product of Roots =0\\Since roots are 3 and 9, the equation becomes:\\x^2-(3+9)x+(3X9) =0\\x^2-12x+27 =0[/tex]

The equation of the parabola is:

[tex]x^2-12x+27 =0[/tex]

Answer:

=25x-8

hope this helps

Answer:

1

Step-by-step explanation:

Hi, its you again lol.

I am in elementary btw.

I don't want to put the equation down.

Answer:

1

Step-by-step explanation:

AoPs Algebra ~ Graphing Multiple Lines Question

Answer:

Hehe Hopefully I'm the first one to help you

Step-by-step explanation:

Answer: I don't know....I'm here for emotional help cuz I'm also struggling in geo rn TwT. I relate to you so yea... Ily and I need more points to ask more questions about geo haha. Supporting you tho

Answer:

The surface area is 259.94 and the volume is 149.81

Step-by-step explanation:

Answer:

The area of the rectangular area is (1400w-w²) square yards.

Step-by-step explanation:

Given that,

David has available 2800 yards of fencing. He wants to enclose a rectangular area.

Assume that, the length and width of the rectangular be l and w  respectively.

The perimeter of the rectangular area is

=2(length+ width)

=2(l+w)

So,

2(l+w)= 2800

[tex]\Rightarrow l+w= \frac{2800}{2}[/tex]

[tex]\Rightarrow l+w= 1400[/tex]

[tex]\therefore l= 1400-w[/tex]

The area of the rectangular area is = length× width

                                                            =l×w

                                                           =(1400-w) w

                                                           =(1400w-w²) square yards.

Final answer:

The area A of the rectangle can be expressed as a function of the width W by using the equation 2L + 2W = 2800, where L represents the length of the rectangle. The formula for the area of a rectangle is A = L * W, substituting the value of L in terms of W, we get A = ((2800 - 2W)/2) * W.

Explanation:

To express the area A of the rectangle as a function of the width W, we need to understand that a rectangle has two equal lengths and two equal widths. Let's assume the length of the rectangle is L. Since the perimeter of the rectangle is 2800 yards, we can write the equation: 2L + 2W = 2800.

Now, we can express L in terms of W: L = (2800 - 2W)/2. The area of the rectangle is given by the formula A = L * W. Substituting the value of L, we get A = ((2800 - 2W)/2) * W.

This is the function that expresses the area A as a function of the width W.