All categories

3 years ago

What expression is represented in the model below x y y y y x x x

Mathematics

2 answers:

Nataly [62]3 years ago

6 0

Y to the fourth power times x to the fourth power

tankabanditka [31]3 years ago

5 0

Y to the 4th power times x to the fourth power

You might be interested in

A student answers a multiple-choice examination question that offers four possible answers. Suppose the probability that the stu

Nitella [24]

Answer: 0.9730

Step-by-step explanation:

Let A be the event of the answer being correct and B be the event of the knew the answer.

Given: $P(A)=0.9$

$P(A^c)=0.1$

$P(B|A^{C})=0.25$

If it is given that the answer is correct , then the probability that he guess the answer $P(B|A)= 1$

By Bayes theorem , we have

$P(A|B)=\dfrac{P(B|A)P(A)}{P(B|A)P(A)+P(C|A^c)P(A^c)}$

$=\dfrac{(1)(0.9)}{(1))(0.9)+(0.25)(0.1)}\\\\=0.972972972973\approx0.9730$

Hence, the student correctly answers a question, the probability that the student really knew the correct answer is 0.9730.

7 0

3 years ago

3/4x + 11 < .3x + 3/4 Solve inequality. pls

Rashid [163]

3/4x+11 < 0.3x+3/4
First turn 3/4 from both sides to decimals to get..
.75x+11 < 0.3x+.75
And then subtract 0.3x from both sides to get
.45x+11 < .75
And then subtract 11 from both sides to get
.45x < -10.25
And then divide both sides by .45x to get
x < -22.77777778

7 0

4 years ago

Y=2 + x; use x= 1, and y= 2

torisob [31]

Y=2+1
2+1=3
So y=3
The answer is y=3

6 0

3 years ago

55. If 3x = 4y, the value of (x + y)^2 : (x - y)^2 is:

ladessa [460]

Answer:

$\large\boxed{(x+y)^2:(x-y)^2=49}$

Step-by-step explanation:

$3x=4y\qquad\text{subtract}\ 3y\ \text{from both sides}\\\\3x-3y=y\qquad\text{distributive}\\\\3(x-y)=y\qquad\text{divide both sides by 3}\\\\x-y=\dfrac{y}{3}\qquad(*)\\------------------\\3x=4y\qquad\text{add}\ 3y\ \text{to both sides}\\\\3x+3y=7y\qquad\text{distributive}\\\\3(x+y)=7y\qquad\text{divide both sides by 3}\\\\x+y=\dfrac{7y}{3}\qquad(**)\\------------------$

$(x+y)^2:(x-y)^2=\dfrac{(x+y)^2}{(x-y)^2}\qquad\text{use}\ \left(\dfrac{a}{b}\right)^n=\dfrac{a^n}{b^n}\\\\=\left(\dfrac{x+y}{x-y}\right)^2\qquad\text{substitute}\ (*)\ \text{and}\ (**)\\\\=\left(\dfrac{\frac{7y}{3}}{\frac{y}{3}}\right)^2=\left(\dfrac{7y}{3}\cdot\dfrac{3}{y}\right)^2\qquad\text{cancel}\ 3\ \text{and}\ y\\\\=(7)^2=49$

5 0

3 years ago

10p + 5= 18p - 6/2 value for p

viktelen [127]

Answer:

1 is your answer for p

Step-by-step explanation:

First simplify. Divide 6 with 2

-6/2 = -3

10p + 5 = 18p - 3

Next, isolate the p. Note the equal sign. What you do to one side, you do to the other. Subtract 5 and 18p from both sides

10p (-18p) + 5 (-5) = 18p (-18p) - 3 (-5)

10p - 18p = -3 - 5

Simplify. Combine like terms

-8p = -8

Isolate the p. Divide -8 from both sides

(-8p)/-8 = (-8)/-8

p = -8/-8

p = 1

---------------------------------------------------------------------------------------------------------

~Senpai

7 0

3 years ago