Mathematics High School

if f(x)=x²-18x+91, solve for x when f(x)=10​

Answers

Answer 1

Answer:

x = 9

Step-by-step explanation:

x²-18x+91 = 10

x²-18x+81 = 0

(x-9)(x-9)= 0

x = 9

check:

9² - 18 (9) + 91

81-162+91 = 10

Related Questions

need help please asap​

Answers

A) 86m
B)58in
C)69ft
D)37cm

How do you write 3,390 in scientific notation?
x 10

Answers

Answer:

3.39 × [tex]10^{3}[/tex]  

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive. Since the decimal is going right, the exponent will be positive

What is the length of the base of a right triangle with an area of 15 square meters and a height of 3 meters?
5 m
10 m
30 m
45 m

Answers

Answer:

10 m

Step-by-step explanation:

I did the test

Answer:

10m

Step-by-step explanation:

I did the test on k12 and it was correct !

help!! This assignment is due in one hour..
Find a function that describes the arithmetic sequence 16, 17, 18, 19, ... Use y to identify each term in the sequence and n to identify each term's position.

Answers

I think it’s y=n+15

The common difference is 1

16+1= 17 17+1=18 and so on

WILL MARK BRAINLIEST!! Which of the following scale drawings is a reduction of the original object? Original object:

FIRST ONE IS THE OG OBJECT!!! The rest is just the answers.

Answers

Answer:

40 feet 20 feet

Step-by-step explanation:

sorry I know this was already answer but need the points- But the first one the other person put was right :D

Answer:

I got 240 inches and 120 inches hopefully that's correct we go to the same school btw!!

Step-by-step explanation:

LOL PLS HELP ME WITH THIS AND EXPLAIN IT , BRIANLY POINTS TO WHOEVER DOES!

Answers

Answer:

french, history, math

Step-by-step explanation:

Reasoning:

If you look at it you can see that french is 11/12 so french is definitely right

so you can eliminate the third question.

Now history is on both of the two answers that could be right.

the last one is math

pls brainliest

m ≥ 15 graph the inequality

Answers

Since the sign is greater than or equal to, it’s a closed circle. I think that means it has a solution. Draw your number line than draw a circle on the 15th line. Make sure the circle is shaded in. Then draw a n arrow a cross the number line, pointing to the right because this equation is say the variable m is greater than or equal to 15

Jane moved from a house with 66 square feet of closet space to an apartment with 37.62 square feet of closet space. What is the percentage decrease of Jane's closet space?

Answers

Answer:

Step-by-step explanation:

Given that ABCD is a parallelogram. Find the following

Answers

Answer:

abcd is parallelogram and opposite sides of parallelogram are equal.

5x-9=3x+1

5x-3x=1+9

2x=10

10/2=x

5=x

bc=

5x-9=5×5-9

=16

ad=3x+1

=3×5-1

=15-1

=14

PLEASE HELPPPP!!! Find the measure of angle A

Answers

Answer:  40

========================================================

Explanation:

The three angles of this triangle are

20x9026x-2

The square angle marker represents 90 degrees. It's also referred to as "a right angle".

As a rule, the three angles of any triangle always add to 180. Let's use this fact to solve for x

(angle1)+(angle2)+(angle3) = 180

(20x)+(90)+(26x-2) = 180

(20x+26x) + (90-2) = 180

46x+88 = 180

46x = 180 - 88 .... subtract 88 from both sides

46x = 92

x = 92/46 ........ divide both sides by 46

x = 2

Now that we know what x is, we can find angle A

angle A = 20x = 20*2 = 40 degrees

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

As extra info, we could also find the other angle with this x value

26x - 2 = 26*2 - 2 = 52 - 2 = 50 degrees

The three angles of the triangle are: 40, 50, 90 which add to 40+50+90 = 180. This helps confirm our answer.

I need help asap answer this please Solve for x.

Answers

Answer:

68

Step-by-step explanation:

x is 12


Step-by-step-explanation:

180-112=68

Then 6x-4=68
6x=72
x=12

Does the equation represent a linear or nonlinear function? Explain.

y = x + 5

Answers

Answer:

Below.

Step-by-step explanation:

A linear function contains a variable of the first  degree  only - for example f(x) = 2x - 1 or f(z) = 3z.

So y = x + 5 is linear.

find x PLEASE HELPPP RIGHT NOW

Answers

Answer:

the answer is 34 degrees

it will be x=180-146 degrees

I need help with this problem-1 1/5 + (-3/5)

Answers

Answer:

-1 4/5

Step-by-step explanation:

What is the value of y if 525=y5?

Answers

Answer:I think its 105

Step-by-step explanation:  525=y5 ... you divide by 5 on both sides and 525 divided by 5 equals 105. So then you bring then y down and y=105.

What is the value of the expression below when x = -5 and y = -10
|3x - y| +4

Answers

Answer:

-1 is your answer for this mate

Explain whether or not a continuous function can be considered a sequence.

Answers

Answer:

A function is considered continuous when it has no drastic changes in the sequence  known as discontinuities. If not continuous, a function is said to be discontinuous.

5. Give an example of a possible answer that follows the form a=b
O 4-4 Infinitely many solutions
O x = 4 One solution
O 2 -4 No solution

Answers

It is c, 2 -4 no solution

Fill in the blanks! Help please this is due at 11:59

Answers

Answer:

1) intensive

2) squemish

3) selfish

4) injection

5) combatiive

6) reject

7) interjection

8) eject

9) impressive

10) projected

Not sure about some of these but hope this can help!!

Step-by-step explanation:

Answer:

1. intensive

2. squmish

3. selfish

4. injection

5. combative

6. reject

7. interjection

8. eject

9. impressive

10. projected

Step-by-step explanation:

a table was listed $400 after discount.And the net price was $450.what is the rate discount and marked price?​

Answers

Answer:

Your answer

Discount rate = 11.11%

Mark it as Brainlist. Follow me for more answer.

Step-by-step explanation:

find x=, if x-12=24 now!?

Answers

Answer:

Answer is 36

Step-by-step explanation:

Trust me

Answer:

36 because 24 + 12 = 36

ts
Identify as many solutions to the equation below as you can.
x + y = 12
(ex. 1 + 11 = 12, so (1, 11) is a solution)

Answers

Answer:

2+10=12

3+9=12

4+8=12

5+7=12

6+6=12

A town has a population of 12,000 and grows at 5% every year what will the population after 12 years be to the nearest whole number

Answers

Your answer will be 21,550 because of 12,000*1.7958563=21,550

Can someone help me with these questions immediately? Thank you!

Answers

Answer:

35

................................................

Equations with one solution are different from equations with special solutions
because?

Answers

Answer:

they are much harder to be solved

Please help me! giving out brianliest!

Answers

Answer:

Hmm, remember to use distributive property with the fraction and the numbers in the parenthesis.

Step-by-step explanation:

solve the following using the quadratic formula
10x^2-7x+5=0
a)-0.96 and -0.26
b)0.96 and -0.26
c)no solution
b)0.96 and 0.26

Answers

c)no solution i’m pretty sure

One hundred forty-four of the 180 seventh-grade students attended the school dance last Saturday night. What percentage of seventh-grade students did NOT attend the dance?

Answers

Answer:

20%

Step-by-step explanation:

Because 144 OUT OF the 180 seventh grade students attended, this would represent 144/180.

But since we are trying to solve how many did NOT attend the dance, you must subtract 144 from 180 which equals 36. So 36/180 did not attend the dance.

But to make it a percentage, you divide 36/180. Fraction and percentage are like buddies! That's why it is very simple to make a fraction into a percentage.

36/180 can be simplified to 1/5, which as a decimal, is 0.20.

0.20 is same as 20%, so this should be the students that did not attend the dance.

I hope this helps. If this is wrong, I truly apologize...

Answer:20

Step-by-step explanation:

20

will give brainliest

Answers

Answer:

40⁰

Step-by-step explanation:

Main principles:

1.Alternate angles equal

2.Vertically opposite angles are equal

If angle 2 is 40⁰, then using the second principle,angle 3 is also 40⁰

Then, using the first principle,(alternate angles/angles that form any variation of "z"), angle 6 is also 40⁰.

There are other ways to do this like using co-interior angles, straight angles and other methods, these are the easiest to understand

It’s 40 degrees. Have a nice day!

3
Find the slope and y-intercept from the following graph of a linear equation.

Answers

Answer:

A. Slope = 4 and y-intercept  = 3

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