All categories

3 years ago

Hair Color Boys Girls

Mathematics

2 answers:

balandron [24]3 years ago

6 0

Answer:

A) 0.15

Step-by-step explanation:

45+46+108+121 = 320

45/320 = 0.140625

A is the best answer. I would have rounded it to 0/14.

alina1380 [7]3 years ago

6 0

The answer is A).15
Hope this helps

You might be interested in

I need this math problem done as soon as possible!

Vesna [10]

Answer:

See below

Step-by-step explanation:

Parent function:

y = 3ˣ

Transformed function:

y = 4(3)⁻²ˣ⁺⁸ + 6, (note. I see this as 8, sorry if different but it doesn't make any change to transformation method)

Transformations to be applied:

f(x) → f(-x) reflection over y-axis
f(-x) → f(-2x) stretch horizontally by a factor of 2
f(-2x) → f(-2x + 8) translate 8 units right
f(-2x + 8) → 4f(-2x + 8) stretch vertically by a factor of 4
4f(-2x + 8) → 4f(-2x + 8) + 6 translate 6 units up

7 0

3 years ago

A marine aquarium has a small tank and a large tank, each containing only red and blue fish. In each tank, the ratio of red fish

Anna007 [38]

Answer:

Ratio of blue fish in the small tank to the red fish in large tank is 10 : 6279

Step-by-step explanation:

Let the number of red fish and blue fish in the large tank are x and y respectively.

Similarly ratio of red fish and blue fish in the small tank are x' and y' respectively.

Since in each tank ratio of the red fish to blue fish is 333 : 444

That means x : y = 333 : 444

Or $\frac{x}{y}=\frac{333}{444}$

⇒ $\frac{x}{y}=\frac{3}{4}$

⇒ y = $\frac{4x}{3}$ --------(1)

Similarly x' : y' = 333 : 444

⇒ $\frac{x'}{y'}=\frac{333}{444}$

⇒ $\frac{x'}{y'}=\frac{3}{4}$

⇒ x' = $\frac{3y'}{4}$ ------(2)

Ratio of the fish in large tank to the fish in small tank is 464646 : 555

So (x + y) : (x' + y') = 464646 : 555

$\frac{x+y}{x'+y'}=\frac{464646}{555}$

Now we replace the values of x and y' from equation (1) and equation (2)

$\frac{(x+\frac{4x}{3})}{(\frac{3y'}{4}+y')}=\frac{464646}{555}$

$\frac{\frac{7x}{3}}{\frac{7y'}{4}}=\frac{464646}{555}$

$\frac{4}{3}\times \frac{x}{y'}=\frac{464646}{555}$

$\frac{x}{y'}=\frac{3}{4}\times \frac{464646}{555}$

$\frac{x}{y'}=\frac{232323}{370}$

$\frac{y'}{x}=\frac{370}{232323}$

$\frac{y'}{x}=\frac{10}{6279}$

Therefore, ratio of blue fish in the small tank to the red fish in large tank is 10 : 6279

4 0

3 years ago

Idk how to solve this exponent problem ?

Wewaii [24]

Answer:256

Step-by-step explanation:To divide power of the same base,subtract the denominator's exponent.Subtract 4 from 7 to get 4.Then calculate 4 to the power of 4 and get 256

8 0

3 years ago

Which of the following is equivalent to this?

Anastasy [175]

Answer:

b: a over b divided by do over c

Step-by-step explanation:

You can solve this by plugging in numbers for each variable.

For example: a=1, b=4, c=1, d=2

1/4 ÷ 1/2 = 0.125

If you plug in the numbers for all the equations listed, only 1/4 ÷ 2/1 = 0.125.

6 0

3 years ago

Please Help! ASAP! f(x)=x^2. What is g(x)??????

AnnZ [28]

Answer:

The first one

Step-by-step explanation:

g(x) = ax² + bx + c

Point (0,0):

0 = a.0² + b.0 + c

c = 0

Point (2,1):

1 = a.2² + b.2 + c

4a + 2b + c = 1

But c = 0. Then:

4a + 2b = 1

Another point: (- 2, 1):

1 = a.(- 2)² + b.(- 2) + c

4a - 2b = 1

{4a + 2b = 1

{4a - 2b = 1

4a + 2b = 4a - 2b

4a - 4a = - 2b - 2b

- 4b = 0

b = 0

4a + 2b = 1

4a + 2.0 = 1

4a = 1

a = 1/4

The formula is:

g(x) = (1/4)x²

I hope I've helped you.

8 0

3 years ago