Mathematics High School

Solve the equation using square roots
x^2 - 55 = 26

Answers

Answer 1

Answer:

x = ±9

Step-by-step explanation:

x² - 55 = 26

   +55   + 55

     x² = 81

     x = √81

     x = ± 9

Answer 2

Answer:

x = 9, -9

Step-by-step explanation:

x^2 - 55 = 26

x^2 = 81.

Now, you might think that x = 9, but don't be fooled. -9 squared is also equal to 81.

So, x = 9, -9

Related Questions

What’s the value of x?

Answers

X = 39°. I hope this helps. Let me know if you need anything else.

PLEASE HELP!! THIS IS DUE IN 20 MINUTES AND I CANT FIGURE IT OUT!!
Given the following proportion, solve for the length of the triangle "n".
n/4 = 12/(n-2)

Answers

Answer:

n = 8, -6

Step-by-step explanation:

If this does not help, let me know and I can edit my answer

The scale of a room in a blueprint is 5 in.: 9 ft. A wall in the same blueprint is 30 in. Complete the table.
Blueprint length (in.) 5
10
15
20
25
30
Actual length (ft)
9
How long is the actual wall?
The actual wall is
feet long
A window in the room has an actual width of 4.5 feet. Find the width of the window in the blueprint.
The width of the window in the blueprint is
in.

Answers

Answer:

54 feets

2.5 inches

Step-by-step explanation:

Given that:

Scale model:

5 in : 9ft

If 5 in = 9 ft

Hence, 1 in on the blue print equals

5 in = 9 ft

1 in = x

Cross multiply

5x = 9

x = 9/5 feets

Hence, 1 inches on the blueprint equals 9/5 feets actual

Blueprint length (in.) ___ Actual length (ft)

5 _________ 9

10 ________ 18

15 ________ 27

20 _______ 36

25 _______ 45

30 _______ 54

Hence ;

5 * 9/5 = 9 feets

10 * 9/5 = 18 feets

15 * 9/5 = 27 feets

20 * 9/5 = 36 feets

25 * 9/5 = 45 feets

30 * 9/5 = 54 feets

Window with actual width of 4.5 feets

Width of window in blue print :

Actual width ÷ 9/5

Actual width = 4.5 = 4 1/2 = 9/2

9/2 * 5 /9

= 5 /2

= 2 1/2 inches = 2.5 inches

The Statue of Liberty's hand is 16.4 ft long. Assume that your own body is similar to that of the Statue of Liberty, your hand is approximately 7.6 inches long, and your nose is 1.8 inches long.

Answers

The answer is roughly 46.9 inches therefore it is 3.9 feet

Combine like terms
(4x^2+6x+7)−(−8x^2−2x+6)

Answers

Answer:

12x^2+8x+1

Step-by-step explanation:

R4 = 74 what does R equal??????????????\

Answers

Answer:

R = 18.5

Step-by-step explanation:

Answer: 18.5

Step-by-step explanation: Divide 74 by 4

What is the upper quartile, Q3, of the following data set?
42, 38, 29, 52, 55, 60, 26, 59, 32, 58, 46, 24, 33, 51, 25

Answers

UQ’s place = 3/4(n+1) so its 3/4 of 16 which is 12 so its the 12th place so its 24

help anyone I don’t understand

Answers

Answer:

D. 71

Step-by-step explanation:

Plug 7 into f

(7)^2 + 2(7) + 8

then solve

49 + 14 + 8

      71

Write the equation of the line given a slope of 0 through the point (5, -7)

Answers

Answer:

y=-7

Step-by-step explanation:

y-y1=m(x-x1)

y-(-7)=0(x-5)

y+7=0

y=0-7=-7

Which expression is equivalent to
(5^-2)(5^-1)
A. -1/125
B. -1/5
C.1/125
D.1/5

Answers

Answer:is 5 ^ -2 ????

Step-by-step explanation:

PLLLLLEEEAAAAASSSSEEE ANSWER NEED HELP!!!!!!!!!!!!!!!!!!!!!! WILL MARK 5 STARS!!!!!!!!!!!!!!!!

Answers

Answer:

UT = 8

Step-by-step explanation:

From the picture, we can make the following equation...

5 + 2x - 6 = x + 6

By solving it we get

5 + 2x - 6 = x + 6

2x - 1 = x + 6

2x = x + 7

x = 7

Therefor if UT = 2x - 6, then UT is equal to...

2x - 6 = UT

2(7) - 6 = UT

14 - 6 = UT

8 = UT

Find the slope and y-intercept of the line.
4)
m=
b=

Answers

Answer:

m=y = 2x + 4.

y intercept is 4

Step-by-step explanation:

-k+ 3k
Combining like terms and distributing

Answers

2k Is the answer bc k becomes -k multiply k and 3 multiply k and 1, the k just gets copied along the answer is k then 3*k evaluates to 3k -k+3*k evaluates to 2k

Help with this please!

Answers

Hello,

No, this is NOT a proportional relationship.

Have a great day/night and stay safe! :)

Answer:

Draco is hot and sodapop is aswell Ig

Step-by-step explanation:

W(-1, 4), X(1, 2), Y-2, 1); k = 3

Answers

Answer:

what is the question

Step-by-step explanation:

get the latest flash player is required for video playback is unavailable right now because this video is not available for remote playback is

Find the radius of the circle whose equation is x² + y² = 4.
4
2
16

Answers

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

20 POINTS PLZ HELP

4. You are taking out an adjustable rate mortgage with an initial APR of 4% for
years 1 - 5, loan amount: $224,000 for 30 years. What is the monthly payment and
total cost for the first 5 years? Which line(s) did you use on the calculator and
what did you enter for B, R, T and m.

Answers

Answer:

mmm... i think its 6-

Step-by-step explanation:

a12 means that the exponent of an arithmetic function is 12


TRUE or FALSE

Answers

The answers is true

Hey I'm Chloe, Can you help me, Thank you :)
I need Help with Math:
-3A +2 ( 5- 2A) = - 11
* I think The answer is A= 3, But I'm not sure*

Answers

Answer:

There is no question just a equation.

Step-by-step explanation:

I'm not sure.

Answer:

You are indeed correct, A=3

Step-by-step explanation:

find the product using suitable properties (- 13 )x (13 + -( 3))​

Answers

Answer:

##############

Step-by-step explanation:

#############

What is the distance between the points (7, 8) and (-8, 0) on a coordinate grid?

Answers

Answer:

17

Step-by-step explanation:

The answer is for your question is 17

The volume of gas a balloon can hold varies directly as the cube of its radius. Imagine a balloon with a radius of 4 inches can hold 192 cubic inches of gas. How many cubic inches of gas must be released to reduce the radius down to 3 inches?

Answers

Answer:111

Step-by-step explanation:

The scale on a map is 2 cm: 25 miles. The distance between the two cities on the map is 7 cm. What is the actual distance between the cities?

Answers

Answer:

87.5 miles

Step-by-step explanation:

2cm = 25 miles

7/2 = 3.5

3.5 x 25 = 87.5

Solve 4+x/7=2 50 points

Answers

Answer: 4 x − 7 = 2 4x-7=2 4x−7=2. Add 7 to both sides. Simplify 2 + 7 2+7 2+7 to 9. Divide both sides by 4.

Step-by-step explanation:

Answer:

x=-14

Step-by-step explanation:

4+x/7=2

-4       -4

x/7=-2

*7    *7

x=-14

Can somebody help. Will mark brainliest.

Answers

Answer:

12/20

Step-by-step explanation:

Cos is adjacent/hypotenuse. 12 is adjacent to angle C and 20 is the hypotenuse. 12/20 is the cosine of C.

A system of equations is shown below what is the x- value of the system of equations y= -4..... 2x-3y=8

Answers

Answer:

x= -2

Step-by-step explanation:

identify the diameter of Q given that a= 169 pie in2

Answers

Answer:

the diameter will be D=26 in.

Step-by-step explanation:

The area of a circle is given by:

[tex]A=\pi R^{2}[/tex] (1)

Where:

A is the areaR is the radius of the circle

Now, we know that A = 169 π in²

So, we just need to use equation 1 to find R.

[tex]169\pi = \pi R^{2}[/tex]

[tex]R=\sqrt{169}[/tex]

[tex]R=13 \: in[/tex]

Therefore, the diameter will be D=2*R=26 in.

I hope it helps you!

The diameter of the circle is 26 inches

The area of the circle is given as:

[tex]A = 169\pi[/tex]

The area of a circle is calculated as:

[tex]A = \pi r^2[/tex]

By comparison, we have:

[tex]\pi r^2 = 169\pi[/tex]

Divide both sides of the equation by pi

[tex]r^2 = 169[/tex]

Take the positive square roots of both sides

[tex]r = 13[/tex]

Multiply by 2, to calculate the diameter

[tex]d =2 * 13[/tex]

[tex]d = 26[/tex]

Hence, the diameter of the circle is 26 inches

Read more about diameter at:

https://brainly.com/question/15673093

5. What additional information would allow you to conclude
that WXYZ is a parallelogram?
A. XY ZW
C. WY ZW
B. XW ZY
D. ZXWY ZZYW
LOL HEY PLS HELP

Answers

Answer:

option c is the correct answer I am guessing

How do you write 6 = h(2) as an ordered pair?

Answers

In order pair it is written as (2,6)
(2,6) hope this helps you your welcome

1. What is the measure
of AB?
A
264°
B

Answers

AB= 96

How to:
360-264
B= 96°, a full circle is 360°
360°-264°=96°
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