x2−5x+8 if x=3 plz help

Answers

Answer 1

Answer:

Step-by-step explanation:

if its x to the second power:

(3)^2-5(3)+8= 9-15+8=17-15=2

if it is 2x

2(3)-5(3)+8=6-15+8 =-1


Related Questions

GCF of 27 and 45 and how to solve with either Prime factorization or the step diagram or the tree method help now pls

Answers

Answer:

( 3 x 3 x 3 ) and ( 3 x 3 x 5 )  The GCF of 27 and 45 is 3 x 3 = 9

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

Prime factorization of 27 and 45 is (3 × 3 × 3) and (3 × 3 × 5) respectively. As visible, 27 and 45 have common prime factors. So, the GCF of 27 and 45 is 3 × 3 = 9.

PLEASE HELP! How do I solve this problem?

Answers

Answer:

A= -10 B= 1/2 C= 600

Step-by-step explanation:

c'est tous simplement la bonne réponse

When using substitution to solve this system of equations, what is the result of the first step x=y+1 4=2x+3y

Answers

The answers in photo below

I will give brainliest to the right answers
please help

Answers

Answer:

C

Step-by-step explanation:

Simplify

8/9
____

5/6

Answers

Answer:  16/15  

decimal: 1.0666

mixed number: 1 1/15

Step-by-step explanation:

Please help me answer

Answers

Answer:

Step-by-step explanation:

A

A pet store has 7 cats. Here are their weights (in pounds).
8, 15, 11, 10, 11, 6, 7
Send data to calculator
Find the mean weight of these cats.
If necessary, round your answer to the nearest tenth.

Answers

Step-by-step explanation:

add 8,15,11,10,11,6,7 then the answer you get divide by 7

Answer:

The answer that has been rounded by the tenths is 9.7

Evaluate the expression 2b + 5 when b = 3

Answers

Answer:

11

Step-by-step explanation:

Step 1:

Since b = 3, substitute 3 into the expression for b

2(3) + 5

Step 2:

2(3) = 6 so the expression is now 6 + 5

Step 3:

6 + 5 = 11

The answer to your problem is 11

Evaluate.
(3⋅7)+(5⋅9)
Enter your answer in the box.

Answers

Answer:

21+45 and in total is 66 if u add them up

please mark me brainless

Step-by-step explanation:

Hello!

Answer:

66

Step-by-step explanation:

Hope this helps!

For the summer reading club, Xavier is required to read 2 books every week.

What line represents this requirement?


Line a

Line b

Line c

Line d

Answers

Answer:

line c

Step-by-step explanation:

a simple graph of one week equals two books or a slope of 2

Line c because it is going up by two each week.

At a bargain store beast boy bought 5 items that each cost the same amount. Cyborg bought 8 items that each cost the same amount, but each was $1.50 less than the items beast boy bought. Both beast boy and Cyborg paid the same amount of money. What was the individual cost of each person's items?
A: Write an equation. Let x represent the cost of one of beast boys items.
B: Solve the equation. Show your work
C: Check your solution. Show your work
D: What was the individual cost of each person's items? State the solution in complete sentences.​

Answers

Answer:Bb 12. Cyborg 12

Step-by-step explanation:

Right for my test

The required number of items purchased by the beast boy is 4 and by Cyborg is 2.5.


Given that,
At a bargain store beast boy bought 5 items that each cost the same amount. Cyborg bought 8 items that each cost the same amount, but each was $1.50 less than the items beast boy bought. Both beast boy and Cyborg paid the same amount of money.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Let the cost of the item bought by the beast boy is x, and the item bought by the Cyborg be y,
According to the question,
5x = 8y
x = 8/5y  - - - - - - -(1)
y = x - 1.50  - - - - - -(2)
Substitute the value of equation 1 to equation 2
y = 8/5y - 1.50
5y = 8y - 7.50
7.50 = 3y
y = 2.5
Now, put y in equation 1
x = 8 / 5 × 2.5
x = 8 × 0.5
x = 4
Now, the costs,
5x = 4 × 5 = $20
8y = 8 × 2.5 = $20

Thus, the required number of items purchased by the beast boy is 4 and by Cyborg is 2.5.

Learn more about simplification here: https://brainly.com/question/12501526

#SPJ2

please help me solve this !
will mark brainliest !
(spammers reported)

Answers

Answer:

x=2

Step-by-step explanation:

PLZ HELP ASAP! Solve the following equation for x: 4x + 12y = -24

Answers

Answer:

This is impossible

Step-by-step explanation:

Answer: x= -6 - 3y

Step-by-step explanation:

A library classifies at DVDS into one of the cater forums shown. The library owns 1555 DVDS. Determine the number of comedy. 31% comedy

Answers

Answer:

482.05

Step-by-step explanation:

31/100 x 1555 = 482.05

This should be the answer, good luck!

Will mark brainliest for all 4 :)

Answers

Answer:

1=2 weekday  3 weekend

2=4 weekend 8 weekday

3=?

4=3 bleachers 4 lawn

Step-by-step explanation:

Help me plss ASAP plzzz

Answers

Answer:

begin with 12 and pat has 8 red flowers

Step-by-step explanation:

easy mathz

Answer:

Begin with 12 and there are 8 flowers are red

Step-by-step explanation:

12-4=8

what number has 62 ones, 20 ten thousands, and 300 tens

Answers

Answer:

20,326

Step-by-step explanation:

what number has 62 ones, 20 ten thousands, and 300 tens

Hope it helped you brainiest plz and thank you have a great day!!!

The number for the given statement is 203,062.

We need to find what number has 62 ones, 20 ten thousand, and 300 tens.

How to write the number into a word statement?

In general, use words to express numbers zero through nine, and use numerals to express numbers 10 and above. However, there are exceptions to this general guideline for number usage.

Now, 62 ones=62×1=62

20 ten thousand=20×10,000=200,000

300 tens=300×10=3000

Now add all these numbers.

That is, 200,000+3000+62

=203,062

Therefore, the number for the given statement is 203,062.

To learn more about the numbers visit:

https://brainly.com/question/17429689.

#SPJ2


What is $36.99 in tax and 20% in tip?

Show your work! Please

Answers

The total is with tip $44.38 I don’t know the tax percent so that’s all I can do

How do you write 3 3/4 as a decimal?

Answers

Answer:
3, 75
Explanation:
You divide the fraction and you put it next to the number

Which expression is equivalent to 0.7 x 0.23?
OA (7x is) (23 x 1.)
ов.
(7x 10 ) x (23 ×
100
O C.
c. (71) * (23 x *)
O D.
D. (7* *) * (23 x )
What is it

Answers

(7 × 10⁻¹) × (23 × 10⁻²)

Step-by-step explanation:

0.7 × 0.23

= (7 × 10⁻¹) × (23 × 10⁻²)

Find m angle C
A. 150
B. 140
C. 137
D. 122

Answers

Answer:

The answer is A

hope it helps u

Use function notation to write the equation of the line
please asap

Answers

Answer:

b

Step-by-step explanation:

b

How much money per candy bar is it if theres
4 for 5.50

Answers

An individual bar is 1.375

2. Change the following into indirect speech.
a. Anupam says, "Where do you live?”

Answers

Answer:

Anupam ask me where l live

hope it's help you (^0^)

-
Find the zeros of the following function f (x) = 2x^2 – x – 10

Answers

Step-by-step explanation:

the formula to find the x values to deliver y=0 results of a squared equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

a, b, c are the constant factors in the 3 terms of a squared equation.

here in our example of 2x² - x - 10

a = 2

b = -1

c = -10

x = (1 ± sqrt(1² - 4×2×-10))/(2×2) =

= (1 ± sqrt(1 + 80))/4 = (1 ± sqrt(81))/4 =

= (1 ± 9)/4

x1 = (1 + 9)/4 = 10/4 = 2 2/4 = 2 1/2 = 2.5

x2 = (1 - 9)/4 = -8/4 = -2

Rick and tom share a reward of $75 in a ratio of 2:3. how much money does each of them get?

Answers

Answer:

Rick gets $30 and Tom gets $45.

Step-by-step explanation:

If Rick gets 2 parts, and Tom gets 3 parts, then there are 5 parts. If $75 is split into 5 parts, each part will be worth $15.

Hence,

Rick gets 2 * $15 = $30

Tom gets 3 * $15 = $45

5. Find the slope of the following table? ​

Answers

Answer:

25-22. 3

---------- = ---

2-1. 1

slope is equal to 3

Mrs. Sampson bought 8
packages of clay for a total of $32
for an upcoming art project. At
this rate, how much would 14
packages cost?

Answers

Answer:

$56

Step-by-step explanation:

cost of 8 packages of clay = $ 32

cost of 1 package of clay = 32 / 8 = $4

cost of 14 packages = 14*4 = $ 56

I need this solved quick plz!!!

Answers

The second one/ the option b

8 in+ 34 in. Round to the correct precision

Answers

It 42 inc hope that helps:)

Answer:

3 feet 6 inches

Step-by-step explanation:

If we add those inches together, we get 42 inches. Turn that to feet (12 in in a foot) and we get 3.5 feet, or 3 feet and 6 inches.

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