y = 2x²- 5x + 2
determine the x value for the vertex and whether this value is a maximum or a minimum
a. maximum at x = -1.25
b. maximum at x = 1.25
c. minimum at x = -1.25
d. minimum at x = 1.25

Answers

Answer 1

Answer: D

Explanation:

Use the vertex formula, -b/2a. Because the quadratic formula is ax^2+bx+c, -b would be 5 in this case and a would be 2 in this case. Plug the numbers in and you get 5/4. The AOS or vertex would be 5/4 or 1.25. Because the a-value is a positive in this equation, the parabola would have a minimum.  


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write the equation of the line that passes through two points in slope intercept form (-8,1) and (2,-4)

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Answer: Answer and explanation in pic

Step-by-step explanation:

Help i will give brainliest to the first one to have a REAL answer

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Answer:

y = -32

Step-by-step explanation:

-6 (y+15) = -3y + 6

-6y - 90 = -3y + 6

-3y - 90 = 6 + 90

= -3 = 96

y = -32

Answer:

Y=28

Step-by-step explanation:

Distribute-6(y+15) > -6y-90

-6y-90=-3y+6 add the -3y to the -6y and the -90 to the 6

-3y=-84

Then just divide -84 by -3

WILL GIVE BRAINLIEST


Quadrilaterals PQRS and TUVW are similar

What is the value of b in yards?

O 0.5 yd
0 3.2 yd
O 12.5 yd
0 28.8 yd

Answers

Answer:

3.2

Step-by-step explanation:

depending on what W-T looks like it seems the best answer

♡ The Question ♡      

Quadrilaterals PQRS and TUVW are similar.  

What is the value of b in yards?  

* ୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*        

♡ The Answer ♡      

3.2 yd!  

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*        

♡ The Explanation/Step-By-Step ♡    

No Explanation/Step-By-Step provided!    

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*        

♡ Tips ♡        

-No tips provided!

Given that 7x−7y=18
Find x when y=−6
Give your answer as an improper fraction in its simplest form.

Answers

Answer:

-24/7

Step-by-step explanation:

7x -7(-6) = 18

7x + 42= 18

7x = -24

x= -24/7

3. Which polynomial has a leading coefficient of 4 and a degree of 3?

1 . 3x4 - 2x2 + 4x - 7
2. 4x4 - 3x3 + 2x2
3 .4 + x - 4x2 + 5x
4. 2x + x2 + 4x3​

Answers

Answer:

4

Step-by-step explanation:

You are selling candy bars for a fundraiser. you want to sell at least $200. If snickers cost $2 per bar and M&M's cost $3 per bag, then write an inequality that represents all the possible combinations you can sell to meet your goal.

Answers

Answer:

Step-by-step explanation:

Goal = > $2500

Amount raised = $700

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Number of candy bars needed = x

Price of a candy bar = $1.50

1.5x > 1800

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Answer: They need to sell more than 1200 candy bars.

Hi there! Someone please help me with this question correctly :)

I’ll mark brainliest and give out points

Answers

Answer:

y=x+4

Step-by-step explanation:

So uh, i dont know how to explain, but fairly sure its y=x+4  

Keesha has 12 glue bottles and 42 craft sticks.
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she can make if she puts an equal amount of
both in each bag?

Answers

Answer:

4 i believe

Step-by-step explanation:

42/12 is 3.5 so i’m guessing that it’s 3.5 bags, i could be wrong

which one doesn’t belong?

Answers

Answer:

Thats the FSA ummmm-

Step-by-step explanation:

Two hundred wildebeests and 150 gazelles grazed on the savannah what was the ratio of gazells to wildebeests grazing on the savannah/

Answers

Answer:

150:200

Step-by-step explanation:

You can simplify it too. 3:4

2X+20 and X+60 I have to solve for X

Answers

Answer:

x = 40

Step-by-step explanation:

I don't understand, but I think you mean 2x + 20 = x + 60

So that's what I'm going to solve for if that's wrong tell me what you mean.

2x + 20 = x + 60 (subtract 20 on both sides)

2x = x + 40 (subtract x on both sides)

x = 40

HOPE THIS HELPS!

IF YOU HAVE A QUESTION ABOUT THIS COMMENT.

Answer:

x = 26.6

Step-by-step explanation:

1. 2x+20+x+60

2. Combine like factors (x' s, and 20+60)

3. 3x+80

4. divide 80 from 3 (80/3)

5. 26.6

Complete the following sentence.

If x is to 9 as 8 is to 12, then x is equal to
.

Answers

x=6

8 is 2/3 of 12 and 2/3 of 9 is 6

Answer:

Srry im late

Step-by-step explanation:

what i miss

can anyone help me please I'm not good at math:(​

Answers

Answer:c

Step-by-step explanation:

David roller skates 33 miles in 2
3/4 hours. What is his average speed in
miles per hour?

Answers

Answer:

12 miles per hour

Step-by-step explanation:

please help!
Find the slope of a line that passes through the
following ordered pairs. Reduce to lowest
terms.
(7, 1) (0, -3)

Answers

correct answer is that i need help with this too.

When flipping a coin, the probability of getting tails is 50% and heads 50%. What is the probability of getting heads
or tails?
50%
60%
75%
100%

Answers

Answer:

50%

Step-by-step explanation:

Most people assume the toss of a coin is always a 50/50 probability, with a 50 percent chance it lands on heads, and a 50 percent chance it lands on tails

Answer:

100%

Step-by-step explanation:

There is a 50% chance of getting heads, and 50% chance of getting tails.

If these two options are added together, you get 100%. There are only two options on a coin flip anyways, so the probability of getting heads or tails would be 100%.

The solution of a+b>12 is a>−3. What is the value of b?

Answers

Answer:

we conclude that when we substitute b = 15, the solution of the inequality becomes:

[tex]a>-3[/tex]

Therefore, the value of b = 15.

The solution graph is also attached.

Step-by-step explanation:

Given the inequality expression

[tex]a+b>12[/tex]

Putting b = 15 in the inequality expression

[tex]a+b>12[/tex]

[tex]a+15>\:12[/tex]

subtract 15 from both sides

[tex]a+15-15>12-15[/tex]

simplify

[tex]a>-3[/tex]

Thus, we conclude that when we substitute b = 15, the solution of the inequality becomes:

[tex]a>-3[/tex]

Therefore, the value of b = 15.

The solution graph is also attached.

May anyone help I’ll give 15 :)

Answers

Answer:

B. No. -6.5 is to the left of -6.3 on a number line. He should have switched the last two numbers.

Step-by-step explanation:

true or false:

Question attached:

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Answer:

true

Step-by-step explanation:

the area of a circle is 173 square inches. find the radius ​

Answers

R = 7.42 inches

Have a Merry Christmas!

Which scatterplot BEST suggests a linear relationship between X and Y? URGENT!!!!!!!!!!!!!!! HELP PLEASE AND FAST!!!!!!

Answers

The scatterplot that best represent a linear relationship between the variables, X and Y, is: graph C.

What is a Linear Relationship?

On a scatterplot, the trendline that shows a linear relationship between two variables will have a straight line pattern that either slopes up or down.

The scatter plot in graph C shows a trendline that slopes along a straight line. Therefore, the answer is C.

Learn more about linear relationship on:

https://brainly.com/question/7040405

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A turtle walks of a mile in 40 minutes. What is the unit rate when the turtles speed is expressed in miles per hour (60 minutes)? (needs to be a denominator)

Answers

Answer:

1.5 miles per hour.

Step-by-step explanation: Because is a turtle walks a mile in 40 minutes then half of that is 20 or half a mile which that 40 minutes plus 20 minutes is 60 minutes.

(n+8)/5=(n-1)/2 what is n

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Answer:

Step-by-step explanation:

n=7

What is the y-intercept of -x + 4 = y? *

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Answer:

4

Step-by-step explanation:

Im sure it is as y=mx +c c being the interceot and mx as the gradient

Answer:

(0,4)

Step-by-step explanation:

In Triangle ABC, Segment AB is congruent to segment BC, and the measure of angle A is 39 degrees, what is the measure of angle C

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I straight line equals 180 degrees.

Subtract 39 from 180.

The answer is 141 degrees

Hope this helps! :)

Find the x and y intercept of the line below


3x + 4y = 12

Answers

Answer: x intercept (4,0) y intercept (0,3)

Step-by-step explanation:

If log25 ~ 2.3219,
evaluate log280.

Answers

Answer:

You need to write log_2 80 in terms of log_2 5 , such that:

log_2 80 = log_2 (8*10)  

Using the properties of logarithms, you need to convert the logarithm of product in summation of logarithms, such that:

log_2 (8*10)= log_2 8 + log_2 10

Since log_2 10 = log_2 (2*5) , yields:

log_2 (8*10)= log_2 8 + log_2 (2*5)

log_2 (8*10)= log_2 8 + log_2 2 + log_2 5

You need to write 8 as power of 2, such that:

log_2 (8*10) = log_2 (2^3) + log_2 2 + log_2 5

Using the power property of logarithms, log_a b^c = c*log_a b  yields:

log_2 (8*10) = 3log_2 2 + log_2 2 + log_2 5

Since log_2 2 = 1 yields:

log_2 (8*10) = 3 + 1 + 2.3219

log_2 (8*10) = 4 + 2.3219 => log_2 (8*10) = 6.3219

Hence, evaluating the given logarithm , using the indicated properties of logarithms, yields log_2 (8*10) = 6.3219 .

Step-by-step explanation:

The value of [tex]log_2{80}[/tex] if [tex]log_25 = 2.3219[/tex] is 6.3219.

What is a logarithm?

The logarithm is exponentiation's opposite function in mathematics.

This indicates that the exponent to which b must be raised in order to obtain a number x is the logarithm of x to the base b. For instance, because 100 = 10², the logarithm of 100 in base 10 is 2, or log10 = 2.

Given, [tex]log_25 = 2.3219[/tex].

Now, To obtain the value of [tex]log_2{80}[/tex] we'll break it into suitable smaller parts.

Therefore,

[tex]log_2{80} = log_2({8\times10})[/tex].

[tex]log_2{80} = log_28 + log_210[/tex]

[tex]log_2{80} = log_28 + log_2({2\times5})[/tex].

[tex]log_2{80} = log_28 + log_22 + log_25[/tex].

[tex]log_2{80} = 3 + 1 + 2.3219[/tex].

[tex]log_2{80} = 6.3219[/tex].

learn more about logarithms here :

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D. 2

Answers

Answer:

A

Step-by-step explanation:

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Step-by-step explanation:

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It’s c just to let u know cause 3 is not 7/15
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