Solve the following quadratic equation.
(1 - 18)2 = 1
OA
x = 19 and x = 17
OB.
x= -19 and x = .17
OC. x= -19 and x = 17
D.
x = 19 and x=-17

Answers

Answer 1

Given:

Consider the given equation is

[tex](x-18)^2=1[/tex]

To find:

The values of x.

Solution:

We have,

[tex](x-18)^2=1[/tex]

Taking square root on both sides, we get

[tex]x-18=\pm\sqrt{1}[/tex]

[tex]x-18=\pm 1[/tex]

Adding 18 on both sides, we get

[tex]x-18+18=\pm 1+18[/tex]

[tex]x=\pm 1+18[/tex]

Now,

[tex]x=1+18[/tex] and [tex]x=-1+18[/tex]

[tex]x=19[/tex] and [tex]x=17[/tex]

Therefore, the correct option is A.


Related Questions

Trisha has $22.50 to spend at the movies. Her ticket is $11.50 , and she gets a large popcorn and soda . If the popcorn and soda each cost the same amount and she spends all her money, how much was the popcorn?

Answers

Answer:$5.50

Step-by-step explanation:

22.50 -11.50= 11

soda and popcorn (2 items)

11/2= 5.50

A box has a height of 5 cm a Length
os 6 cm and a width of 2 cm
What is its volumes​

Answers

The box has a volume of 5x6x2=60cm^3

Check the picture, and thanks for the help

Answers

Answer:

According to me the answer is 'c'

According to me the answer is C to

Can someone help with all three plz?

Answers

Answer:

number three is vertical

number 4 x=28

number 5 x=24

Box the greatest decimal and encircle the least decimal in each number.

1. 3.49 3.498 3.149 3.4

2. 333.5 333.56 33.356 3.987

3. 8.047 80.47 804.7 0.8047

4. 700.08 700.088 700.008

5. 0.123 0.457 0.127 0.0678​

Answers

Answer:

From greatest to least

1) 3.498 3.49 3.4 3.149

2) 333.56 333.5 33.356 3.987

3) 804.7 80.47 8.047 0.8047

4) 700.088 700.08 700.008

5) 0.457 0.127 0.123 0.0678

Step-by-step explanation:

Explaining just 1st and 4th

1.

The number 3.498 is bigger than 3.49 because it's basically this number 3.490

The same thing happens in 2nd and 3rd number 3.49 > 3.40

And the last number I think I don't have to explain :-)

4.

700.088 is bigger because 700.08 is smaller

700.080

If you have any questions contact me on amino Ayleena

Find the area of this parallelogram. 9cm 12cm 21cm

Answers

Answer:

2268cm^2

Step-by-step explanation:

Area of a parallelogram is L×B×H

9cm×12cm×21cm= 2268cm^2

Answer:

189

Step-by-step explanation:

B × H =

12× 9 =

= 189 hfjxijdkvkis

-7+n/5=-11
Solve it down here

Answers

Answer:

n = -20

Step-by-step explanation:

-7 + [tex]\frac{n}{5}[/tex] = -11

*multiply both sides by 5*

-35 + n = -55

*add 35 to each side*

n = -55 + 35

*calculate the sum*

n = -20

help its ratios please ty no guessing

Answers

Answer:

4:3

Step-by-step explanation:

4 pennies

3 quarters

Answer:

4:3

Step-by-step explanation:

Please help , I’ve been stuck on it for ages , really appreciate it. , thanks

Answers

it is delivered with the help of short note or a clear outline

Answer:

it means that 5000 was 30 percent of them

so ask your self if 30 is 5000

100 ?

Step-by-step explanation:

30. 5000

100. x

100*5000/30=16666

The bus fare for 8 passesngers is Rs. 384, how many more passengers can travel in the bus if the bus fare amounts to Rs. 576?​

Answers

Answer:

12 passengers so four more can travel in the bus.

Step-by-step explanation:

384/8= rs 48 per person.

amount= 576

576/48 = 12 passengers.

Step-by-step explanation:

here

8 passengers=Rs. 384

1 passenger= Rs. 384/8

=Rs. 48

Rs. 576= ? passengers

now,

Rs. 576/ 48

= 12passengers

12 passengers - 8 passengers

= 4 passengers

therefore, 4 more passengers can travel in the bus fare amount to Rs. 576.

AYO HELP ME COME ON!!!!!

Answers

Answer and Step-by-step explanation:

The answer would be:

C = 10h, where C is the total cost of hats, and h is the number of hats bought.

10 represents the amount of money for each hat.

#teamtrees #PAW (Plant And Water)

please help i dont know what to do

Answers

Answer:

-15 + -3 = -18

Rob owes his father $18.

Step-by-step explanation:

Rob has to pay back the same amount of money that he took. Since he took 15 dollars, he has to give back 15 dollars which makes the 15 negative. The same goes for the 3 in the equation.

To find out the total amount Rob has to pay back, we have to add -15 and -3, which is -18.

quotient 2 divided by 2 3

Answers

Answer: 11.5

Step-by-step explanation:

Brenda has 14 fewer apps than Caleb. If Caleb deleted 5 apps, then he would have twice as many as Brenda. How many apps do Brenda and
Caleb have together?

Answers

Answer:

42

Step-by-step explanation:

Because Brenda has 14 fewer apps and he deleted 5 apps and he now has twice as many as brenda so 14 + 14 =28 so he had 33 before but remember 33- 5 + 28 so 14 + 28 + 42

How many terms can 5x+9-4b have

Answers

Answer:

8x

Step-by-step explanation:

The constants are the numbers that are NOT

attached to anything. In the expression, 3x + 2,

(2) is a constant because it is not attached to

anything. The (3) is not a constant because it

is attached to x, and it is actually a coefficient.


5
An atom silicon is approximately 0.00000000067 Imeters wide. How do you express that number in scientific notation?
A 6.7 x 1010
meters
B 67 x 10-10
meters
© 6.7 x 10-10 meters
11
D 6.7 x 10
meters

Answers

A hhhhhhhhhhnjjjjnnnnnjjkkk

8 + 25 x 2 to the power of 2

Answers

Answer:

3,364

Step-by-step explanation:

8 + 25 x 2

To solve this one, you multiply first according to PEMDAS. So,

25*2= 50

It is now 8+50 so you add that and you get 58

Now 58 with a power of 2 can als be written as 58^2

Basically you multiply 58 two times.

58*58=3,364

3,364

Hope this helps!!

-Ketifa

(Can I get brainliest?)

Please help . Write 405 in scientific notation 405

Answers

Answer:

4.05 x 10^2

Step-by-step explanation:

Please mark brainiest

and give 5 stars

Thanks

Planet Fitness gym charges $15 per month plus $50 for a membership. Total
Fitness gym charges $25 per month and no membership fee. After how many months
would the total cost be the same for both gyms?

Answers

Answer:

planet fitness will take one month and total fitness will take 3 months

Step-by-step explanation:

planet fitness:

75

total fitness:

25

50

75

XZW XYV find the perimeter of XZW?

PLS HELP

Answers

9514 1404 393

Answer:

  180 units

Step-by-step explanation:

The perimeter of ∆XYV is ...

  Pxyv = XY +YV +VX

  Pxyv = 29 +31 +40 = 100

The triangles are similar, so the scale factor from ∆XYV to ∆XZW applies to the perimeter. That scale factor is ...

  WX/VX = (32+40)/40 = 1.8

Then ...

  Pxzw = 1.8 × Pxyv = 1.8 × 100

  Pxzw = 180 . . . units

Solve each question
A.p+12=17
B. 7/3=q+2/3
C. 90=20r
D. 1/3s=7

Answers

Answer:

.

Step-by-step explanation:

A. p:17-12=5

B. q=7/3-2/3=5/3

C. r=90÷ 20=4.5

D. s=7÷1/3=7x 3/1 =21

Please help and I please don't answer just for the points I'll report you

Answers

Answer:

x=1

y=1

Step-by-step explanation:

y=x^2-x+1        1. Write out the equation

y=y^2-y+1        2. Substitute the "x"s for "y"s

0=y^2-2y+1      3. Subtract "y" from both sides of the equation

0=(y-1)(y-1)        4. Factor into a binomial

y-1=0

y=1

x=1

If you are going 250 miles somewhere and it cost 75 cents per mile how much money is that

Answers

Answer:

$187.50

Step-by-step explanation:

Set up an equation

250 m/$x = 1 m/$0.75

Cross multiply

250 miles × $0.75 = 1x

$187.50 = x

Benny bought 4 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 24 cards left.
How many cards did Benny start with?

Answers

Answer:

44

Step-by-step explanation:

24x2

48-4= 44

PLEASE HELP

What is the circumference of a circle?

Answers

2 • pi • radius which is same as 2 • 3.14 • r

Four cards labeled A, B, C, and D are randomly placed in four boxes labeled A, B, C, and D. Each box receives exactly one card.

In how many ways can the cards be placed in the boxes?​

Answers

Answer: 16 different ways

Step-by-step explanation:

For problem 5, use the ordered pairs to answer the following question. MUST SHOW YOUR WORK FOR FINDING SLOPE.

Answers

They will not intersect (I hope this helped)

dan buys a car for £2,200 it depreciates at a rate of 0.5% per year how much would it be worth in 6 years

Answers

Given:

The initial value of car = £2,200

Depreciation rate = 0.5%

To find:

The worth of car after 6 years.

Solution:

Exponential decay model:

[tex]y=a(1-r)^t[/tex]

Where, a is the initial value, r is the rate of depreciation and t is number of years.

Putting a=2200, r=0.005 and t=6, we get

[tex]y=2200(1-0.005)^6[/tex]

[tex]y=2200(0.995)^6[/tex]

[tex]y=2200(0.9703725)[/tex]

[tex]y=2134.8195[/tex]

[tex]y\approx 2134.82[/tex]

Therefore, the worth of the car after 6 years is £2134.82.

Round your answer to the nearest hundredth.
0
A
70°
4
B

Answers

Answer:

70 i think

Step-by-step explanation:

PLEASE HELP

Connor and Angie helped take attendance during their school's practice
fire drill. Connor counted 470 in attendance and Angie counted 479. The
actual attendance was 470. What is the percent error? (ROUND TO THE
NEAREST TENTH.) *
0.019
1.2%
1.9%
12%

Answers

Answer: 1.9%

Step-by-step explanation:

The percent error formula is [tex]\frac{accepted-experimental}{accepted}[/tex] so input our values also keep in mind when we do percent error we use absolute error which means no negative percentages so 470-479/470= -9/470 or 9/470

as a decimal 9/470 is 0.019 or 1.9% so the answer is 1.9%

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