Mathematics High School

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

Can anyone help me with this math question

Answers

Answer: C.

Step-by-step explanation: if you add 25.50 to every number it makes sense, since the decimal went from .25 to .75.

The answer is B because if you divide 38.25 by 3 you will get 12.75 and when you multiply it by 5 you'll get 63.75. This then prover that it is 12.75.

I need help with this question

Answers

Answer:

8 or 9^8

Step-by-step explanation:

You have to add the exponents when they are being multiplied without parenthesis which means 3+5=8 so it's 9 to the 8th power.

Please help Expand 3(y+2)

Answers

Answer:

3y + 6

Step-by-step explanation:

3 x y = 3y

3 x 2 = 6

3y + 6

Which mathematical term can be defined precisely?
point
line
distance
circle
ASAP

Answers

Answer:

I think it is option A

point

hope it helps

Answer:

point

Step-by-step explanation:

PLEASE HELP ME ASAP!!!!!


Can you use this pattern to find 111111111*11111111 without a calculator? Please Explain

Answers

Answer:

Can you show me the pattern?

Can I see the pattern

17. Sebuah kaleng berbentuk tabung memiliki
diameter alas 20 cm. Jika volume udara
di dalam kaleng 1.570 cm³, maka tinggi
kaleng tersebut adalah ... cm.
a. 5
b. 10
c. 12
d. 15​

Answers

Jawab:

A

Penjelasan dengan langkah-langkah:

jari jari : 10 cm

t = 1570/3,14 x 102

t = 5 cm

in the sale a price of a shirt is decrease by £3 what was the original price of the shirt​

Answers

Answer:

Step-by-step explanation:

Let the price of the shirt after discount = y

Reduction = £3

Original price= y + 3

What single decimal multiplier would you use to increase by 5% followed by a 6% increase?

Answers

Costing price = £13000
Increase = 11% of 13000
=> 11/100 x 13000
=> 11 x 130
=> £ 1430
Increased price = 13,000+1430
=> £ 14430

Help please thankssssssssssssss

Answers

9514 1404 393

Answer:

  C)  $3572

Step-by-step explanation:

The simple interest formula is ...

  I = Prt

where P is the amount invested at annual rate r for t years.

To find the value of P, we can divide by rt:

  P = I/(rt)

Filling in the given information, we have ...

  P = $500/(0.035×4) = $500/0.14 ≈ $3572

$3572 must be invested to earn $500 interest in 4 years.

Helppp im not very good at math so can you guys help me​

Answers

Answer:

Answer is D. 75 cm2

Step-by-step explanation:

The closest estimate to 70.2 is 75 cm2

Hopefully this helps

Simplify the expression. 2(34x ) + 5(92x ) + 81x

Answers

Answer:

608x

Step-by-step explanation:

2(34x) + 5(92x) + 81x

68x + 460x + 81x (distributive property)

608x

Omgg someone help me with this ASAP

Answers

Answer:

1) associative property addition

2) The Distributive Property

3) associative property multiplication

4) Commutative property of multiplication

5) associative property addition

I hope this helps a little bit.

looooooook below
GIVING BRAINLIEST

Answers

Answer:

c

Step-by-step explanation:

Answer:

your answer will be B).60cm

Step-by-step explanation:

have a nice day ^_^

2 school bags cost $ 276 . Find the cost of 88 school bags

Answers

Answer:12144

Step-by-step explanation:

Answer : FROM THE TOP, MAKE IT DROP THAT'S A WET!!! THAT'S A WET #WAP!!!

Mrs. Parson baked 25 cookies. 4 fifths of the cookies were oatmeal. How many oatmeal cookies did Mrs. Parson bake?

Answers

Answer:

I think the answer is 20 ..........

Step-by-step explanation:

5

hii im sorry to be a burden but could someone please help me with this problem it has to do with the pythagorean theorem :p

Answers

Answer:

Step-by-step explanation:

10 inches

Answer:

68.5 inches

Step-by-step explanation:

The pythagorean theorem is a^2+b^2 = c^2

In this case, a = 60, b = 33, and we are looking for c, so this is how you do it:

60^2 + 33^2 = 3600 + 1089 = 4689

sqrt(4689) = 68.47627326...

Rounded to the nearest tenth is 68.5!

Please help me with the question that is screne shot been doing it for a while now and im so confused

Answers

Answer:

Step-by-step explanation:

lol

y У.
63°
49°
Х
a)
Write down the value of angle x.
b)
Write down the value of angle y.

Answers

Answer:

X=49°

Y=63.

Igigoggogo

X- 49°

Y-63°

Hope it helped

Leo had a $30 gift card to use at a coffee shop. He used the entire balance to buy regular-sized coffees, which cost
$2, and large coffees, which cost $3. If he bought 13 coffees in total, how many large coffees did he buy?

Answers

Answer:C

Step-by-step explanation:

Leo bought 4 large coffees.

Answer:

its: C

Step-by-step explanation:

HElp please i’m failing and i’m tired of this

Answers

Answer:

[tex]\sqrt{4x} =6\\\\(\sqrt{4x} x^{2} =6^{2}\\\\\frac{4x}{4} =\frac{36}{4} \\\\x=9[/tex]

Step-by-step explanation:

i hope it helps

have a nice day ^_^


PLEASE HELP ASAP, MARKING BRAINLIEST!!!

A walking path around the outside of the garden is shaped like a triangle. Two sides of the past that measure 32 ft and 39 feet form a 70 degree angle. If you walk around the entire path one time, how far have you walked?

Answers

You would walk 111.126 feet

I nee help with algebra (2, -4) slope =-3 ​

Answers

Answer:

Two parallel lines have the same slope, so, the slope of the parallel line is also negative 2/3

Step-by-step explanation:

PLEASE HELP !!!!!!!! Answer correctly !!!!!!!!! Will be marking Brianliest !!!!!!! URGENT URGENT !!!!!!!!!!!!!!!

Answers

Answer:

ummm ummm i dont know

Step-by-step explanation:

Answer:

B (-5,5)

Step-by-step explanation:

-12+a/2=-6

-7+a=-12

a=-12+7

a=-5

-3+b/2=1

-3+b=2

b=2+3

b=5

T=2π√h+k /gh. Find k given that 2π2= 10​

Answers

Answer:

Bne matematikçi değilim^o^

PLZ HELP ASAP I WILL GIVE BRAINLIEST
The means and mean absolute deviations of Sidney’s and Phil’s grades are shown in the table below the question.

Which expression represents the ratio of the difference of the two means to Sidney’s mean absolute deviation?

A. 82/3.28

B. 4/3.28

C. 4/0.68

D. 82/0.68

Answers

Answer:

B.

Step-by-step explanation:

Answer:

B.

StartFraction 4 over 3.28 EndFraction

Step-by-step explanation:

divide until the remainder is zero.
7.4 ÷ 4​

Answers

Answer:

1.85

Step-by-step explanation:

Answer:

this is not possible as it is a non terminating decimal


An architect is making a plan for a new circular playground. If the picture below is the
playground, how much fencing needs to go up to
keep the kids in the circle?

Answers

Answer:

201ft

Step-by-step explanation:

The circumference of a circle is equal to

C=piD

d=64ft

substitute:

c=pi(64)=64pift ft

assume pi=3.14

64pi=64*3.14=200.96ft

round to the nearest whole number:

200.96=201ft

another explanation:

Answer:

Length of the fencing required = 201.06 meters

Step-by-step explanation:

Architect is planning a circular playground with diameter = 64 m

We have to calculate the fencing required to cover this playground.

Length of fencing = circumference of the playground

Since circumference of a circle = π × (Diameter)

                                                   = 64π

                                                   = 201.06 meters

Therefore, length of fencing required to keep the kids in a circle will be 201.06 meters.

200.96 meters of fencing needs to go up to keep the kids in the circle. Therefore, option D is the correct answer.

What is circumference of a circle?

The circumference of a circle is the perimeter of the circle. It is the total length of the boundary of the circle. The circumference of a circle is the product of the constant π and the diameter of the circle.

Given that, diameter of a circle is 64 meter.

Here, the radius = 64/2

= 32 meter

We know that, the circumference of a circle can be calculated using 2πr.

Now, circumference = 2×3.14×32

= 200.96 meters

Therefore, option D is the correct answer.

Learn more about the circumference here:

brainly.com/question/28757341.

#SPJ2

Please help me in number 34 please!!!!

Answers

Answer:

D

Step-by-step explanation:

use math wwwway , it gives ypu the answer and explenation

Simplify.

9 + 8 + 3x

17 + 3 x
9 + 11 x
20 + x
20 x

Answers

Answer:

17+3x

that is the answer

Answer:

17 + 3x

Step-by-step explanation:

9 + 8 + 3x

=17 + 3x

because the 3 contain a valuable x that why it is add to the 17

Write down the following equation in the general form:
y= - 3 over 4 then x then + 2 over 5

Answers

Y= -4/5 + 2/5, Y= -2/5
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