Mathematics College

For which equation does x = 2?

Answers

Answer 1

Answer:

what are the equations

Step-by-step explanation:

Related Questions

factor completely
5x^2-9x-2

Answers

Answer:

(5x+1)(x - 2)

Step-by-step explanation:

Hi now bye HOPE U DO GOOOOOOOD

The graph shows the proportional relationship between the number of sodas you buy and the cost of the sodas. Identify the constant of proportionality and write an equation for the proportional relationship.

A: k=3; y=3x

B: k=2; y=2x

C: k=4; y=4x

D: k=7; y=7x

Answers

Answer:

its B.

Step-by-step explanation:

all you have to do is y divided by x to find the constant of proportionality

so it would be two y=2x

The probability that a 22-year-old female in the U.S. will die within one year is approximately 0.00044. If an insurance company sells a one-year, $30,000 life insurance policy to such a person for $435, what is the company's expectation? (Round your answer to the nearest dollar.)

Answers

Answer:

The value is [tex]E(X) = \$ 421.6[/tex]

Step-by-step explanation:

From the question we are told that

The probability that a 22 year old female in US will die within one year is p= 0.00044

The outcome if she dies within one year is that the company losses $30,000

Generally the probability that a 22 year old female in US will live more than one year is

[tex]q = 1 -p[/tex]

=> [tex]q = 1 -0.00044[/tex]

=> [tex]q = 0.99956[/tex]

The outcome if she lives more than one year is that the company gains $435

Generally the the company's expectation is mathematically represented as

[tex]E(X) = -30000 * p + 435 * q[/tex]

The negative sign shows that the company is loosing the fund

[tex]E(X) = -30000 * 0.00044 + 435 * 0.99956[/tex]

=> [tex]E(X) = \$ 421.6[/tex]

Laura took a test and got 45 questions right which is a grade of 75%. How many questions were there in all?

Answers

Answer:

60 questions in total

Step-by-step explanation:

75% of 60 is 45

hope this helps :3

if it did pls mark brainliest

Problem 2. A random variable has the following density function:
f (x) = 1- 0.5x 0 < x < 2

a. Graph the density function.
b. Verify that f(x) is a density function.

Answers

If f(x) is a density function, then its integral over the entire real line should be 1:

[tex]\displaystyle\int_{-\infty}^\infty f(x)\,\mathrm dx=\int_0^2(1-0.5x)\,\mathrm dx=(x-0.25x^2)\bigg|_0^2=2-1=1[/tex]

so yes, f(x) is indeed a density function.

What is the equation of the line? Identify the values of A, B, and C in the
standard form of the equation.

The equation of line is
____

Answers

Answer:

-1

Step-by-step explanation:

If x= time in minutes, y= distance in miles, and y=1/6x. How far can you run 5 points
in 30 minutes?*

Answers

Answer:

You can run 5 miles in 30 minutes.

Step-by-step explanation:

y = [tex]\frac{1}{6}[/tex] x

y = [tex]\frac{1}{6}[/tex] (30)

y = 5 miles

You can run 5 miles in 30 minutes.

50 POINTS PLS HELP!!!!

Quadrilateral EFGH was dilated by a scale factor of 2 from the center (1, 0) to create E'F'G'H'. Which characteristic of dilations compares segment F'H' to segment FH?

A: A segment that passes through the center of dilation in the pre-image continues to pass through the center of dilation in the image.

B: A segment that does not pass through the center of dilation in the pre-image is parallel to its corresponding segment in the image.

C: A segment in the image has the same length as its corresponding segment in the pre-image.

D: A segment that does not pass through the center of dilation in the pre-image is perpendicular to its corresponding segment in the image.

Answers

Answer:

Answer choice C.

Step-by-step explanation:

Which fraction/decimal is greater

Answers

Answer:

-5.25>-5 3/10

Step-by-step explanation:

let's convert -5 3/10 into a decimal

which is

-5.3 or -5.30

-5.25 and -5.30

because it's negative, the lowest number is the greatest number so

-5.25 is greater than -5.30

Tom is the custodian at the local highschool. He has a circular key ring with 9 keys on it. How many different arrangements of those keys can Tom make on his key ring?

Answers

tom will have his key 10

Answer:

40,320.. took the test on USA test prep

Answer:

486,502

Step-by-step explanation:

7 Given: -8(w + 1) = -5(w + 10); Prove: w = 14
Statements

Answers

Answer:

w=14

Step-by-step explanation:

-8(w + 1) = -5(w + 10)

Remove the parentheses

-8w-8+-5w-50

Move terms

-8w+5w=-50+8

Collect like terms and calculate

-3w=-42

Then divide on both sides

which equation represents a proportional relationship?

Answers

Answer:

y = 1 - 1/3x

Step-by-step explanation:

The answer is C because A and X are in the same place.

C because the angles match up together. Triangle ABC congruent to triangle XYZ. angle A = angle X, angle B is congruent to Y, angle C is congruent to Z. They match up. The vertex’s (B &Y are congruent) because they are both vertex’s. I hope this makes sense.

Determine if biconditional is true.
A) Felipe is a swimmer if and only if he is an athlete.

Answers

it is not a true biconditional.

need help asap!!!!!!

Answers

Answer: x=4

Step-by-step explanation: first you should write it out like it is telling you. put a line and EG is the line and f is in the middle of the two looks kinda like this E F G but they are on a line EG= 25 that means the whole thing equals 25. EF= 2x-6 and FG= 4x+7. when you plug that in it should look like this 25=2x-6+4x+7 then solve.

i don't know this problem

Answers

Answer:

133 is the answer

plzz mark the brainliest❤❤

Step-by-step explanation:

3x-4=5x-38

so x=17

then we say 5×17-38=47

180-47=133

so 133 is the answe for angle 4

I can identify and use inverses to solve equations with one variable

Answers

Answer:

[tex] \boxed{ y = 10000}[/tex]

Step-by-step explanation:

[tex] \boxed{question \: 1.} \\ log(y) + 100 = 104 \\ log(y) = 104 - 100 \\ log(y) = 4 \\ but \: log(x) = log_{10}(x) \to \\ log_{10}(y) = 4 \\ y = 10 {}^{4} \\ \boxed{ y = 10000}[/tex]

♨Rage♨

Find the unit rate. Round to the nearest hundredth, if necessary.

$340 for 18 ft2

Answers

Answer:

18.89

Step-by-step explanation:

340/18=18.8888

18.888 to the nearest hundredth is 18.89

1 +1 = ???????????????????????????

Answers

Answer:

IT 2

Step-by-step explanation:

-2(+7)-3(4- 2x).
Help I will give you brainliest who does it first

Answers

6x-26 is your answer

Answer:

-2(+7)-3(4-2x) simplified = −26+6x

Step-by-step explanation:

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