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3 years ago

*REMEMBER THAT ON STANDARD FORM YOU DONT USE FRACTIONS!!!

Mathematics

2 answers:

Shtirlitz [24]3 years ago

8 0

Or x+y=4/3. Like this, the variables are separated from the rest of the equation.

Novay_Z [31]3 years ago

3 0

Standard form of a linear equation is

Ax + By = C, where A, B, and C are integers.

Add 3 to both sides to get

4x + 4y = 3

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Plz help me with this two question

alekssr [168]

Part A:

3.14 X (4)^2 X 3/3
= 50.26548246

5 0

2 years ago

Read 2 more answers

Can you guys help me? The questions is... A soccer team eats lunch at a restaurant on the way to a tournament total cost of the

mr Goodwill [35]

Answer: The tip left for the servers was $14.80

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

Total cost of the food (before tax) = $82.25
Tip = 18% of the amount before the tax

So, to calculate the tip we have to multiply the cost of the food before tax ($82.25) by the 0.18 (percentage in decimal form, 18/100= 0.18).

Mathematically speaking:

82.25 x 0.18 = $14.80

The tip left for the servers was $14.80

3 0

3 years ago

Read 2 more answers

Commercial real estate

aliya0001 [1]

Answer:

yes

Step-by-step explanation:

5 0

3 years ago

Find the total surface area of the cylinder shown. Leave the answer in terms of π. A cylinder with radius 4.25 inches and height

olga_2 [115]

Answer:

$87.125\pi in^{2} or 87\frac{1}{8}\pi in^{2}$

Step-by-step explanation:

Given Surface Area of Cylinder = $2\pi rh+2\pi r^{2}$ ,

and also given r = 4.25 inches and h = 6 inches.

Let's Substitute r and h into the formula to find the total surface area.

Surface Area of Cylinder = $2\pi (4.25)(6)+2\pi (4.25)^{2} \\=51\pi +36.125\pi \\=87.125\pi in^{2} or 87\frac{1}{8} \pi in^{2}$

5 0

2 years ago

A particular sale involves four items randomly selected from a large lot that is known to contain 9% defectives. Let X denote th

umka2103 [35]

Answer:

The expected repair cost is $3.73.

Step-by-step explanation:

The random variable X is defined as the number of defectives among the 4 items sold.

The probability of a large lot of items containing defectives is, p = 0.09.

An item is defective irrespective of the others.

The random variable X follows a Binomial distribution with parameters n = 9 and p = 0.09.

The repair cost of the item is given by:

$C=3X^{2}+X+2$

Compute the expected cost of repair as follows:

$E(C)=E(3X^{2}+X+2)$

$=3E(X^{2})+E(X)+2$

Compute the expected value of X as follows:

$E(X)=np$

$=4\times 0.09\\=0.36$

The expected value of X is 0.36.

Compute the variance of X as follows:

$V(X)=np(1-p)$

$=4\times 0.09\times 0.91\\=0.3276\\$

The variance of X is 0.3276.

The variance can also be computed using the formula:

$V(X)=E(Y^{2})-(E(Y))^{2}$

Then the formula of $E(Y^{2})$ is:

$E(Y^{2})=V(X)+(E(Y))^{2}$

Compute the value of $E(Y^{2})$ as follows:

$E(Y^{2})=V(X)+(E(Y))^{2}$

$=0.3276+(0.36)^{2}\\=0.4572$

The expected repair cost is:

$E(C)=3E(X^{2})+E(X)+2$

$=(3\times 0.4572)+0.36+2\\=3.7316\\\approx 3.73$

Thus, the expected repair cost is $3.73.

4 0

3 years ago