Mathematics College

select all the statements that are true

Answers

Answer 1

Answer:

C & D

Step-by-step explanation:

A. 4 is greater than 0, so use the third equation to find f(x). 4*4 - 1 = 15, so A is wrong.

B. -2 is less than 0, so use the first equation to find f(x). -(-2) + 1 = 3, so B is also wrong.

C. -1 is less than 0, so use the first equation to find f(x). -(-1) + 1 = 2, so C is correct.

D. 1 is greater than 0, so use the third equation to find f(x). 1*1 - 1 = 0, so D is also correct.

Related Questions

Which set of numbers below DO NOT make a triangle?
7,7,7
6, 3, 3
3,4,5
5, 11,7

Answers

Answer:

6, 3, 3 (B)

Step-by-step explanation:

Two sides of a triangle must be greater than the remaining side

A way to think about this is like this:

The two shortest sides of a triangle must be greater than the final side

Go through this process for each option and find the B does not work

6,3,3 because two sides must be greater than 6,3,3

PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.

Answers

Answer:

-1

Step-by-step explanation:

If you multiply x by -1 you will get the y value to be the negative of that number.

Hope this helps!!

Answer:

so first find what y equals then put the negative in front of it lol there is a pattern positive and negative

3,-3

4,-4

5,-5

6,-6

y,-y

Step-by-step explanation:

Anyone help please.

Correct answer

Giving brainliest

Answers

Answer:

The answer is true

Step-by-step explanation:

Think of it this way, when x and y are approaching positive infinity, infinity (lets say the initial coordinate value is (5,8), infinity will always be greater than 5

Hope that helps :)

HELPP I WILL GIVE BRAINLEIST!! PLSSSSS PLSSSSSSS

Answers

Answer:

x = 3 && y = - 1

Step-by-step explanation:

Just solving the two equations

the first equation

y = 4/3 x +3

y - 4/3 x = 3 ..............................................(1)

the second equation

y = -2/3x -3

y + 2/3 x = -3 ..............................................(2)

by substracting 2 from 1

-4/3x - 2/3x = -6

divide by -1

4/3x +2/3x = 6

6/3x = 6

2x = 6

x= 3

then subsititute by value x in any of given eqautions

(-40) divided by (_)= (-8) what is the missing number?

Answers

Answer:

Step-by-step explanation:

-40÷5 = -8

Please help with this area

Answers

Answer:

L = 7 W= 12

Step-by-step explanation:

Ok so we already know that a rectangle is not even so the numbers will have to be 2 diff numbers.

The length is 5 feet less then width

w*l= 84

1* 84 2* 41 3*28 4*21 6*14 7*12

84-1 41-2 28-3 21-4 14-6 12-7

83 39 25 19 8 5

So,

your equation would be l*w = 7*12

I ready volume with fractional length

Answers

Answer:

im here to help.

Step-by-step explanation:

yup

send picture we can’t se

Solve for m.
m
2
= 13

Answers

Answer:

m=6.5

Step-by-step explanation:

13 divided by 2= 6.5

I think you have to solve for M and then add the 13 sorry if it’s too wrong

Please please give answer for this question

Answers

C, 16cm. Count along the edges for the number of lines.

simplify and factor this expression; 12x+18y+18x

Answers

12x + 18y + 18x
combine like terms
30x + 18y
factor out 6
6 (5x + 3y)

Answer:

15x+9y

Step-by-step explanation:

1) Add: 12x+18x+18y= 30x+18y

2)Factor (divisible by 2)

3)Divide 2 from 30 and 18 so,

4)15x+9y

Help pleaseeeeee!!!!!!!!

Answers

Answer:

2hklakkskamkaoaiaikanwkaisosossosooaolalao

b.1=(-2x2)+5

or you say x=2 and y=1

Step-by-step explanation:

bro bit a no answer ok

please mark me as brainlist

absolute value of x=5
what is x

Answers

Answer:

Step-by-step explanation:

5 = 5

Adrienne’s lunch cost $13.16. She hands the cashier $20. About how much change does Adrienne receive?

Answers

Answer:

Use long subtraction to evaluate.

6.84

Step-by-step explanation:

¿en 765.123,el 6 representa 6,6.000,60.000 o 600.000?

Answers

Answer:

60.000

Step-by-step explanation:

El 6 está en la area de los 10 miles, entonces multiplicamos 6 por 10.000 para recibir la respuesta.

5(y+25)=-13 i need help explaining

Answers

Answer:

y=-138/5=-27 3/5 = -27.6

Step-by-step explanation:

5(y+25)=−13

Divide both sides by 5.

y+25=-13/5

Subtract 25 from both sides.

y=-13/5−25

Convert 25 to fraction 125/5

y=-13/5-125/5

Since -13/5 and 125/5 have the same denominator, subtract them by subtracting their numerators.

y=-13 - 125/5

Subtract 125 from −13 to get −138.

y=-138/5

Anna needs to purchase some new clothes. for each pair of jeans she will buy three sweaters. how many sweaters can she purchase if she has $255?
jeans cost: $40 each
sweaters cost: $15 each
use elimination method for solving systems of equations.

Answers

Answer:

Step-by-step explanation:

each time Anna purchased a pair of jeans she spends 40+15(3)=40+45=$85, including the sweaters. to find how many jeans and sweaters she buys $255÷$85=3

Please help!

6:2(1+2)=??

Answers

[tex]6 \div 2(1 + 2) = 9[/tex]

Explanation :

[tex]6 \div 2(1 + 2)[/tex]

[tex] = 3(3)[/tex]

[tex] = 9[/tex]

Plz help! I don’t know how to do these!

Answers

Step-by-step explanation: x = 120 x= 65x= 24

4. x= 40

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

☺️

In a survey, 150 seventh graders said that they had been to a foreign country. That number represented 20% of the students who were surveyed. How many students were surveyed?

Answers

Answer:

750

Step-by-step explanation:

150/2=7.5

7.5*100=750

750*0.2=150

Plz help with the problem in the picture. Thanks

Answers

x = 3.4

They call me human calf

Answer: x(0,0)y(0,0) tell me more I don't really understand it

x=3.4

Step-by-step explanation:

SOLVE the EXPRESSION
Evaluate 6s - 3t If s=4 and t=-2

Answers

Answer:

Step-by-step explanation:

6(4) - 3(-2) =

24 + 6 =

suppose that rectangle ABCD is dilated to A'B'C'D using the origin as the center and a mangnitude of 2. What are the coordinates of C'?

Answers

Answer:

-8,-8

Step-by-step explanation:

Hope u get it right! :D

pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee help asap timed test

A coordinate plane with a straight line. The line starts in the lower left quadrant and continues up through the uppercase right quadrant. The line passes through the y-axis slightly below the origin, and then passes through the x-axis slightly to the right of the origin.
Which of these values could be the slope of the line? Select two options.

–2

0

3

Answers

Answer: 3 and 7/4

Step-by-step explanation:

Because all the other answers are a negative slope or undefined.

The graph shown is positive so the slope has to be positive.

Remember to press that Thanks button!

Can you show me the steps that you took to get the answer for this question?

Answers

x=47 because m1+m2=90°

The answer is C.
If measure of 1 + measure of 2 = 90
And measure of 1 = x
And measure of 2 = x - 4
You would have the equation of
X + X - 4 = 90
So then you combine like terms
2x - 4 = 90
Then you add 4 on both sides
2x - 4 = 90
+ 4 + 4
2x = 94
Then you divide by 2 to get x alone
And x = 47

Given f(x) = -(x - 5)^2 + 1, what is the value of h?

Answers

Answer:

It began after the stock market crash of October 1929, which sent Wall Street into a panic and wiped out millions of investors. Over the next several years, consumer spending and investment dropped, causing steep declines in industrial output and employment as failing companies laid off workers.

Answer:
The answer is 5.

Step By Step Explanation:

Vertex Form is y=a(x-h)^2+k

Since the 5 is in the placement for the H the answer would be five, not negative five.

Imagine you are a financial analyst at an investment bank. According to your research of publicly-traded companies, 60% of the companies that increased their share price by more than 5% in the last three years replaced their CEOs during the period. At the same time, only 35% of the companies that did not increase their share price by more than 5% in the same period replaced their CEOs. Knowing that the probability that the stock prices grow by more than 5% is 4%, find the probability that the shares of a company that fires its CEO will increase by more than 5%.

Answers

Answer:

0.0667 = 6.67% probability that the shares of a company that fires its CEO will increase by more than 5%.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

In this problem:

Event A: Company fires the CEO

Event B: Shares increase by more than 5%.

Probability of a company firing it's CEO:

35% of 100 - 4 = 96%(shares did not increase by more than 5%).

60% of 4%(shared did increase by more than 5%).

[tex]P(A) = 0.35*0.96 + 0.6*0.04 = 0.36[/tex]

Intersection of events A and B:

Fires the CEO and shared increased by more than 5%, is 60% of 4%. So

[tex]P(A \cap B) = 0.6*0.04 = 0.024[/tex]

Probability that the shares of a company that fires its CEO will increase by more than 5%.

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.024}{0.36} = 0.0667[/tex]

0.0667 = 6.67% probability that the shares of a company that fires its CEO will increase by more than 5%.

One end of a ramp is raised to the back of a truck 5 feet above the ground. 1 point
If the length of the ramp is 8 feet, what is the approximate measure of the
angle the ramp makes with the ground? Round your answer to the nearest
tenth of a degree.
38.7°
58.0°
32.0
51.3

Answers

Answer:

38.7°

Step-by-step explanation:

You are basically looking at a triangle with a 90° angle (check picture).

Since we are looking for the ramp's angle and are given the length of the opposite and the hypothenuse, we have to solve the following equation:

[tex]sin (\alpha) = opposite / hypothenuse= 5 ft/8ft[/tex]

which is equivalent to

[tex]\alpha = sin^{-1}(5/8)\approx 38.7\deg[/tex]

consider the two functions. which statement is true?

Answers

we need to see the first function

Answer:

The right answer is D

Step-by-step explanation:

The slope of the first function is 2.5, the slope of the second function is 3, so function 2 has a greater rate of change by [tex]\frac{1}{2}[/tex].

Help me I’m stuck and please can someone explain this to me

Answers

Answer:

84 degrees

Step-by-step explanation:

3x = 4x - 28. Reason: Alternate Exterior Angle are congruent

X=28 Reason: Algebra

Y+4x-28= 180 Reason: Straight angles = 180 degrees

Y=84. Reason: Algebra

If (y + 1) varies directly as square root of x and y =14 when x = 27, find the value of y when
x = 64 without finding the variation constant.

Answers

Answer:

22.1 or 22

Step-by-step explanation:

Y + 1 varies√x

Y + 1 = K√x ( k is costant)

so we solve for K

given: 14 + 1 = K√27

15 = K√27

divide both sides by √27

15/√27 = K

to find the value of y

y + 1 = 15/√27 (8) : substitute K for 15/√27

Y + 1 = 120/√27

i.e Y = 120/√27 - 1

Y = 23.1 - 1

Y = 22.1 or 22

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