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

In a bag of skittles, there are 124 pieces. 25% are red. How many skittles are NOT red? Put the numeric answer only.

Answers

Answer:

496

Step-by-step explanation:

Answer:

93

Step-by-step explanation:

124 * 25%

31

124-31

93

-) Colin is playing a video game. He wins 25 points for each gold coin he finds. His goal is to win
more than 200 points. He wants to know how many gold coins he needs to find.
) Let g be the number of gold coins Colin finds. Which inequality represents the situation?
259 > 200
259 > 200
25 +9 > 200
25+ 9 > 200

Answers

Answer:

A

Step-by-step explanation:

25g>200

so A

if my answer helps please mark as brainliest.

Which two whole numbers does 27/4 lie between?

Answers

Answer:

6 and 7

Step-by-step explanation:

27 divided by 4 equals 6.75 and that number is in between 6 and 7

6 and 7 I think should be the answer

What is it guys?????????

Answers

Answer:C

Step-by-step explanation:

Notice that the line is heading downward. This is a clue that it has a negative slope. Think of slope as rise over run. Rise being up or down on the y axis and run being left or right on the x axis. If we start at (0,0) and count down 3 squares and left 4 squares we can see that -3/4 is the slope.

Answer:

A. 3/4

Step-by-step explanation:

m = [tex]\frac{y2 - y1}{x2 - x1}[/tex]

(-8, -6) (-4, -3)

[tex]\frac{-3 + 6}{-4 + 8} = \frac{3}{4}[/tex]

10 candy bars for 12.50 how much per candy bar unit price

Answers

Answer:

1.25

Step-by-step explanation:

if there are 36 students and the ratio of girls to boys 5:4 how many girls and boys would there be​

Answers

36:(5+4)=4
4x5=20grl
4x4=16boy

The first term of an arithmetic sequence is a1 = 2, and the third term is a3 = 6. Which of the following could be formula(s) for the sequence? Select all that apply.

A. an = 2n
B. an = 2n + 2
C. an = n + 2
D. ​​an = an − 1 + 2; a1 = 2

Answers

Answer:

A

Step-by-step explanation:

an=2(1)=2

an=2(3)=6

There are 5 cats for every 4 dogs at the animal shelter. What is the ratio of dogs to cats?

Answers

Answer:

4:5

Step-by-step explanation:

Answer:

puedo cambiarme de entidad en el règimen subsidiado

Step-by-step explanation:

The Pep Club sold $125 worth of candy at Friday's night game. if they receive a commission of 40% of their candy sales, how much did they make?

Answers

Answer:

50$

Step-by-step explanation:

Answer:

$175

Step-by-step explanation:

If by commission you mean the money they add to the candy bars revenue then the formula for that would be 125 * 1.4 = x. x = 175.

Jeff can type 110 words in 2 3/4 minutes. How many words can he type
in 4 1/4 minutes? *

Answers

Answer:

680

Step-by-step explanation:

What we should know is how many words he can type in 1/4 minutes. We can do 110 divided by 2.75 which is 40. 40 is the number of words he can type in 1/4 minutes. Now multiply this 17 (4 1/4 = 17/4) and you get 680. I believe he can type 680 words in 4 1/2 minutes. (Make sure my answer is correct)

Determine the intercepts of the line.
y-intercept:

X -intercept:

Answers

X-intercept= 3.5
Y-intercept=2.5

XWV ~ EDC. Find the length of EC.​

Answers

Answer:

EC = 24

Step-by-step explanation:

12/8 = x/16

then you cross multiply

8x= 192

divide

x = 24

plssss help giving brainly

Answers

Answer:

-2 and 4

Step-by-step explanation:

not 100% sure but i think so

Answer: 4 + -6 = -2

Explanation: it’s technically 4-6 which also equals -2

4(-W +8) I need help please.​

Answers

Answer:

4(-w+8)

Step-by-step explanation:

-4w+32

32dividedby-4

w=-8

In the expression -5g12 which part is the base?

Answers

-5 is the base of -5g in this expression

bro THIS GIVIN ME A HEADACHEEEEEEE. help pls LOL

Answers

school is for ugly people

one half of a number is eight

Answers

Answer:

16

Step-by-step explanation:

Which of the following is most likely the next step in the series?

Answers

Answer:

its either A, or B

Step-by-step explanation:

hehehhe

Answer:

B

Step-by-step explanation:

The numbers in each of the circle halves are all in the blue side therefore all numbers on the red side would be eliminated. Leaving you with the options of B or C.

Now the Blue side for every pair is facing each other. So C would be eliminated because the red side is facing the start of the second pair ( A.K.A the third circle)

Leaving us with B.

I apologies if this is wrong! But I hope I helped a little bit

Look at the graph.

On a coordinate plane, a graph increases through (negative 1, 4), levels off at (0, negative 3), and then increases up through (2, 5).

Leslie analyzed the graph to determine if the function it represents is linear or non-linear. First she found three points on the graph to be (–1, –4), (0, -3), and (2, 5). Next, she determined the rate of change between the points (–1, –4) and (0, -3) to be StartFraction negative 3 minus (negative 4) Over 0 minus (negative 1) EndFraction = StartFraction 1 Over 1 EndFraction = 1. and the rate of change between the points (0, -3) and (2, 5) to be StartFraction 5 minus (negative 3) Over 2 minus 0 EndFraction = StartFraction 8 Over 2 EndFraction = 4. Finally, she concluded that since the rate of change is not constant, the function must be linear. Why is Leslie wrong?
The points (–1, –4), (0, –3), and (2, 5) are not all on the graph.
The expressions StartFraction negative 3 minus (negative 4) Over 0 minus (negative 1) EndFraction and StartFraction negative 3 minus (negative 5) Over 2 minus 0 EndFraction both equal 1.
She miscalculated the rates of change.
Her conclusion is wrong. If the rate of change is not constant, then the function cannot be linear.

Answers

Answerpizza:

Step-by-step explanation:

What is the answer of 14.8-4b-(17.1-3b)
the answer choices are:
A. 0.375
B. 3.75
C. 37.5
D. 375​

Answers

c is maybe the answer but i’m not sure

Estimate the sale price of the item.
30% off a bike for $432.43

Answers

Answer:

129.73

Step-by-step explanation:

432.43x30%=129.73

Discount = Original Price x Discount %/100
Discount = 432.43 × 30/100
Discount = 432.43 x 0.3
You save = $129.73

Final Price = Original Price - Discount
Final Price = 432.43 - 129.729
Final Price = $302.70

What is 18 divided by 1/4?

Answers

18 divided by 1/4 is 72

Answer:

72

Step-by-step explanation:

so Convert any mixed numbers to fractions.

Then your initial equation becomes: 18/1 divided by 1/4 then you  apply the fractions formula for division. and the answer is 1/72. and you just write the 72. I Hope This Helps:> Please Mark Brainliest

I’ll give u a kiss if u help me with this ASAP plzzz ;) with an explanation too plzzzz

Answers

I think it’s one solution
Because the first equation answer is 5y+15/4 the second answer is 5y-5/4
It ends up dividing by 4
Sorry if this is wrong

Answer:dezzzzz znu

Ss s

Step-by-step explanationasaaa

Can someone help me please

Answers

Step-by-step explanation: 70

Find the quotient.
52.06 divided by 1.9

Answers

Answer:

27.4

Step-by-step explanation:

First multiply the numerator and denominator by 10

Then write the problem in long division format

Then divide 52 by 19 and get 2

Then multiply the quotient digit (2) by the divisor 19

Then subtract 38 from 52

Then bring down the next number of the dividend

Then divide 140 by 19 to get 7

Then multiply the quotient digit (7) by the divisor 19

Then subtract 133 from 140

Then add a decimal point to the solution

Then bring down the next number of the dividend

Then divide 76 by 19 to get 4

Then multiply the quotient digit (4) by the divisor 19

Then subtract 76 from 76

The solution for long division for 52.06./1.9 is 27.4

27.4

Answer:

quotient is 27.4

Step-by-step explanation:

your welcome;)

The sale price of every item in a store is 65% of its usual price. The usual price of a tennis racket is $70, what is its sale price?

Answers

Answer: 24.50$

Step-by-step explanation:

Hi. I need help with this question :

Question : y is such that
[tex]4y - 7 \leqslant 3y[/tex] and
[tex]3y \leqslant 5y + 8[/tex]:
I). What range of values satisfies both inequalities ?
II). Hence, express
[tex]4y - 7 \leqslant 3y \leqslant 5y + 8[/tex]
in the form of
[tex]a \leqslant y \leqslant b[/tex]
where a and b are both integers.

Please show workings.

​

Answers

Answer:

-4≤y≤7

Step-by-step explanation:

4y-3y≤7

y≤7

and

3y-5y≤8

-2y≤8

y≥-4

so, -4≤y≤7

9514 1404 393

Answer:

  -4 ≤ y ≤ 7

Step-by-step explanation:

Solve the inequalities separately, then identify the intersection of the solution sets.

4y -7 ≤ 3y

  y -7 ≤ 0 . . . . . . . subtract 3y

  y ≤ 7 . . . . . . . . . add 7

3y ≤ 5y +8

  0 ≤ 2y +8 . . . . . . subtract 3y

  -8 ≤ 2y . . . . . . . . . subtract 8

  -4 ≤ y . . . . . . . . . . divide by 2

The intersection of the sets y ≤ 7 and -4 ≤ y is given by ...

  -4 ≤ y ≤ 7

HELPPPPPPPPPPPPPPP PLZZZZZZZZZZZZZz

Answers

Answer:

basically a calculator

Step-by-step explanation:

what's the difference between two step equations and one step equations

Answers

When solving two step equations you must solve one part of the equation so that you can solve the second part.

In one step equations you can just solve the equation as is.

Answer:

A one step equation needs one step, and a two step equation needs two steps.

Step-by-step explanation:

in a recent survey 60% of those surveyed indicated that they preffered walking to running. a.if 540 people preffered walking how many people were surveyed?? b.how many people preferred running??​

Answers

Answer:

216 person

Step-by-step explanation:

100-60=40%

540×40/100=216 person

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