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3 years ago

Suppose f(x) = x2 and g(x) = (2x)2. Which statement best compares the graph

Mathematics

1 answer:

inna [77]3 years ago

6 0

Answer:g(x) is more narrow than x^2

Step-by-step explanation:the bigger the coefficient in front othe x^2 the skinny or narrow the parabola becomes our teacher would say x^2 is the parent function runs 1 mile you are 3x^2 your in 3 miles whose skinner lol

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How does 4 digit addends have a 5 digit sum

denpristay [2]

A 4 digit addends could have a 5 digit sum because of the rule of regrouping.
Regrouping is a situation where carrying and borrowing is involves. So let’s have an example

8999
+5678
14677

so in this example, we added 8999 to 5678.
9+8 = 17, so we bring down 7 and carry 1
9 + 7 = 16 + 1 = 17 , so again we bring down 7 carry 1
9 + 6 = 15 + 1 = 16, bring down 6 carry 1
8+5 = 13 + 1 =14, since this is our last number, bring down 14..
=> 14, 677

3 0

3 years ago

EASY MATH PLEASE HELP! I WILL GIVE BRAINLIEST! QUESTION: Find the area.

Verdich [7]

Answer:

14yd^2

Step-by-step explanation:

6 0

3 years ago

To mix plaster for a dental model, 35 mL of water is used for 100g of plaster. How many mL of water should be used for 250g of p

laila [671]

Okay, here we have this:

Considering the provided information, we are going to calculate the requested value, so we obtain the following rule of three:

$\begin{gathered} \frac{x}{35mL\text{ of water}}=\frac{250g\text{ of plaster}}{100g\text{ of plaster}} \\ x=\frac{250g\text{ of plaster}}{100g\text{ of plaster}}\cdot35mL\text{ of water} \end{gathered}$

Solving for x:

$\begin{gathered} x=2.5\cdot35mL\text{ of water} \\ x=87.5mL\text{ of water} \end{gathered}$

Finally we obtain that 87.5mL of water should be used for 250g of plaster.

3 0

1 year ago

A man is 1.8m tall and standing 60m away from a light pole and the sun cast his shadow at 6m. What is the height of the light po

dsp73

19.8 m We have 2 similar triangles. For the 1st triangle, we have two legs, one being the man's height of 1.8m and the second being the length of his shadow at 6m. So we have the ratio 1.8/6. The other triangle is comprised of the pole's height and length of the pole's shadow which will be 60m + 6m = 66meters. So we have another ratio of x/66 which has the same value as the first ratio. So let's solve for x. 1.8/6 = x/66 66*1.8/6 = x 11*1.8 = x 19.8 = x So the light pole is 19.8 meters tall.

6 0

3 years ago

g In American roulette, the wheel has the 38 numbers, 00, 0, 1, 2, ..., 34, 35, and 36, marked on equally spaced slots. If a pla

earnstyle [38]

Answer:

The expected value for the player to play one time is -$0.05.

Step-by-step explanation:

The expected value of a random variable X is given by the formula:

$E(X)=\sum x\cdot P(X)$

The American roulette wheel has the 38 numbers, {i = 00, 0, 1, 2, ..., 34, 35, and 36}, marked on equally spaced slots.

The probability that the ball stops on any of these 38 numbers is same, i.e.

P (X = i) = $\frac{1}{38}$ .

It is provided that a a player bets $1 on a number.

If the player wins, the player keeps the dollar and receives an additional $35.

And if the player losses, the dollar is lost too.

So, the probability distribution is as follows:

X : $35 -$1

P (X) : $\frac{1}{38}$ $\frac{37}{38}$

Compute the expected value of the game as follows:

$E(X)=\sum x\cdot P(X)$

$=[\$35\times \frac{1}{38}]+[-\$1\times \frac{37}{38}]\\\\=\frac{\$35-\$37}{38}\\\\=-\frac{\$2}{38}\\\\=-\frac{1}{19}\\\\=-0.052632\\\\\approx -\$0.05$

Thus, the expected value for the player to play one time is -$0.05.

7 0

3 years ago