solve for x.

√x + 20 = 9

possible answers:

17
61
81
101

Answers

Answer 1

Answer: 61

Step-by-step explanation:

[tex]\sqrt{x+20}=9\\\\x+20=81\\\\x=\boxed{61}[/tex]

Answer 2

The value of x will be 61.

What is mathematical expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The mathematical expression is,

⇒ √x + 20 = 9

Now,

Solve the expression for the value of x as;

The mathematical expression is,

⇒ √x + 20 = 9

Take square on both side, we get;

⇒ (√x + 20 )² = 9²

⇒ x + 20 = 81

Subtract 20 both side, we get;

⇒ x + 20 - 20 = 81 - 20

⇒ x = 61

Therefore, The value of x will be 61.

Learn more about the mathematical expression visit:

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Related Questions

Which congruence theorem can be used to prove ABDA - ABDC?

Answers

Answer:

SAS(SIDE ANGLE SIDE)

Step-by-step explanation

AB side in ABDA = AB side in ABDC

ABD angle in  ABDA= ABD angle in ABDC

BD side in ABDA = BD side in ABDC

The congruence theorem can be used to prove ABDA - ABDC is SAS.

What is Congruence of Triangles?

Congruence of triangles: Two triangles are said to be congruent if all three corresponding sides are equal and all the three corresponding angles are equal in measure. These triangles can be slides, rotated, flipped and turned to be looked identical. If repositioned, they coincide with each other. The symbol of congruence is’ ≅’.

According to the questions,

AB side in ABDA = AB side in ABDC

ABD angle in  ABDA= ABD angle in ABDC

BD side in ABDA = BD side in ABD

Thus SAS is applied.

Hence SAS(Side Angle Side) is the required answer.

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Mrs. Farquharson drove through a total of 36 intersections on her way home from work last week. At 4 of every 16 intersections, Mrs. Farquharson had to stop for a red light before she could drive through. At how many intersections did Mrs. Farquharson have to stop for a red light?

Answers

She had to stop at 9

Can someone help me find the GCF of 35 and 63 please show your work thank you​

Answers

The first step to find the gcf of 35 and 63 is to list the factors of each number. The factors of 35 are 1, 5, 7 and 35. The factors of 63 are 1, 3, 7, 9, 21 and 63. So, the Greatest Common Factor for these numbers is 7 because it divides all them without a remainder. 

To sum up, the gcf of 35 and 63 is 7. In common notation: gcf (35,63) = 7.

~ I hope this helped, and I would appreciate Brainliest. ♡ ~ ( I request this to all the lengthy answers I give ! )

Suraj has $15.00 to spend. He decided to buy a shirt for $9.95 and spend the rest on candy bars. If each candy bar costs $1.50, how many candy bars can Suraj buy?

Answers

Answer:3

Step-by-step explanation: i think

Answer:

He can by 3 candy bars.

Step-by-step explanation:

15.00-9.95=5.05

5.05-1.50=3.55

3.55-1.50=2.05

2.05-1.50=0.55 cents

Is 9 yards bigger then 324 inches

Answers

Answer:

No

Step-by-step explanation:

Because they are equal

Answer: no , it’s equal

Step-by-step explanation:

9 yards is equal to 324 inches

Cuz there are 36 inches in 1 yard

So 36(9) = 324 inches!!

A cylinder has a base diameter of 18 feet and height of 15 feet . What is it’s volume in a cubic feet to the nearest tenths place ?

Answers

it's 3817.04 but you round to the nearest tenth

v = pi * r^2 * h

radius is half of diameter so 18/2 = 9. now plug that in :)

v = pi * 9^2 * 15
v = pi * (81)(15)
v = 1215(pi)
v = 3817.0

hope this helped :)

999x85 i need help getting the answers for this question

Answers

the answer for this is 84915

\The graph for the equation y = negative x + 2 is shown below. On a coordinate plane, a line with positive slope goes through (0, 2) and (2, 0). If another equation is graphed so that the system has an infinite number of solutions, which equation could that be? y = negative 2 (x minus 1) y = negative (x + 2) y = negative one-fourth (4 x minus 8) y = negative one-half (x + 4)

Answers

An infinite number of solutions is generated with a multiple of the first function, hence, the correct option is:

[tex]y = -\frac{1}{4}(4x - 8)[/tex]

The graph given is:

[tex]y = -x + 2[/tex]

When two equations are multiple, the system involving these two equations has infinite solutions.

Among the options, the multiple of the original function is:

[tex]y = -\frac{1}{4}(4x - 8)[/tex]

[tex]y = -x + 2[/tex]

Hence, [tex]y = -\frac{1}{4}(4x - 8)[/tex] is the correct option.

A similar problem is given at https://brainly.com/question/25718527

The correct answer is C

-Banana

8. Which congruence postulate or theorem must you use before proving

Answers

Answer:

last one ?

Step-by-step explanation:

you can prove it by base angle threom  because this a isscloes triangle

Help me!, CERTAIN ANSWRS INLY I DONT UNDEDRSTNDDDDDD THANK YOU IN ADVance

Answers

Answer:

Initial temperature = 20° C

Temperature after 18 minutes = 4° C

Step-by-step explanation:

Function representing the relation in the temperature of the soda and time has been given as,

T(x) = [tex]-8+28e^{-0.045x}[/tex]

Here x = number of minutes since the can was placed in the cooler

For initial temperature of the soda,

x = 0,

T(0) = [tex]-8+28e^{(28\times 0)}[/tex]

      = -8 + 28(1)

      = 20° C

For the temperature after 18 minutes,

x = 18,

T(18) = [tex]-8+28.e^{-0.045\times 18}[/tex]

       = [tex]-8+28.e^{(-0.81)}[/tex]

       = [tex]-8+12.456[/tex]

       = 4.456 C

       ≈ 4° C

Can someone please help me with this problem?

Answers

Answer:

[tex]sin(\theta)=\frac{40}{41} \\cos(\theta)=\frac{9}{41} \\tan(\theta)=\frac{40}{9}\\csc(\theta)=\frac{41}{40} \\sec(\theta)=\frac{41}{9} \\cot(\theta)=\frac{9}{40}[/tex]

Step-by-step explanation:

Notice we can use the Pythagorean theorem to find the measure of the unknown side via:

[tex]123^2=120^2+x^2\\x^2=729\\x=\sqrt{729} \\x=27[/tex]

and now, knowing all the sides, we can find all te trigonometric functions of the angle  [tex]\theta[/tex]:

[tex]sin(\theta)=\frac{opp}{hyp} = \frac{120}{123} =\frac{40}{41} \\cos(\theta)=\frac{adj}{hyp} = \frac{27}{123} =\frac{9}{41} \\tan(\theta)=\frac{opp}{adj} = \frac{120}{27} =\frac{40}{9}\\csc(\theta)=\frac{41}{40} \\sec(\theta)=\frac{41}{9} \\cot(\theta)=\frac{9}{40}[/tex]

How many times does the digit one appear from 101 to 200

Answers

118 times
Gdhejegevehsgcsfshahs

Answer:

Step-by-step explanation:

Let's get the answer first and then we can discuss how it is done. The answer is 119.

There is a problem. The question does not state whether or not 101 is included. If it is 119 is correct. If the question is between 101 and 200 then the answer will be 117.

How was it done? A programming language was used. So it counted by brute force.

From 101 to 120 we get

101  102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120

32  Certainly there must be a quicker way

101 = 2

102 to 109 = 1 * 8 = 8

110 to 119 = 10*2 = 20  

111 has an extra 1  = 1

120 has                    1

Total                       32  

From here it gets a bit easier.

121                      2

122 - 129            8

total                  10

130                     1

131                      2

132 - 139           8  

total                  11

140 to 149        11

150 to 159        11

160 to 169        11

170 to 179         11    

180 to 189         11

190 to 199         11

total 7 * 11 + 32 + 10 = 119

Solve for x.



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

Answers

The 21x-8 and the 13x-4 are they angles or are they line segments?

Answer please :) (15 points )

Answers

Answer:

its b

Step-by-step explanation:

Answer:

its b

Step-by-step explanation:

yh its b what else am i ment to say

Please help!!! Thanks


Math problem

Answers

Answer:

67

Step-by-step explanation:

(5-2)180

=540

540-131-105-153-84

=67

Graph the following equation:
y=3x-4

Answers

Answer:

3*​x-​4

Step-by-step explanation:

you start at -4 then go up 3 over one and continue

are the triangles congruent ?

Answers

I’m pretty sure there not but I might be wrong

In a factory a test run over 400 computer chips resulted in 8 defective one how many possible out comes are there

Answers

Answer:

392

Step-by-step explanation:

Help pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

the last one :)

Step-by-step explanation:

x^3-x^2-4x
factor completely

Answers

Answer:

Cannot be factored further

Step-by-step explanation:

[tex]x^{3} -x^{2}-4x=x(x^{2}-x-4 ) \\[/tex]

Answer:

x(x^2-x-4)

Step-by-step explanation:

Daisy made mac and cheese for her nephew and used 1.5 cups of macaroni and 2 cups cheese. Later that week she made a larger batch. If she used the same recipe and used 4 cups of cheese. How many cups of macaroni did she use?

Answers

Answer:

42

Step-by-step explanation:

Jimmy's school is selling tickets to the
annual talent show. On the first day of ticket sales the school sold 4 adult tickets
and 6 child tickets for a total of $80. The school took in $84 on the second day by
selling 4 adult tickets and 7 child tickets.Find the price of an adult ticket and the
price of a child ticket.
3

Answers

Children’s tickets are $4, adult tickets are $14




Explanation:

4a+6c=80

If they made $4 more dollars on the second day than the first by selling one extra child ticket then we know a child’s ticket is $4 per ticket.


4a+6*4=80
4a+24=80
4a=56
14=a

So each adult ticket costs $14.


You can check by filling in $14 and $4 for each equation.


4*14+6*4=80

4*14+7*4=84

Need some answers preferably in the next 24 hours 4 ^-2 x 4^-4

Answers

Answer: 1/4096

Step-by-step explanation:

4^-2 = 1/16

4^-4 = 1/256

multiplying them gives 1/4096

What is the quotient of 7-1/7-2?

Answers

Answer:

7

Step-by-step explanation:

Suppose you have 6 pairs of socks in your sock drawer. It is still dark out in the morning when you get dressed, so you just pull socks out of the drawer at random, one at a time, until you have removed two matching socks. What is the probability that you pull out exactly 5 socks from your sock drawer in the morning?

Answers

Answer:

8/33 = 0.242

Step-by-step explanation:

There are 12 socks to begin with and one is taken;

The second is picked from the remaining 11 and will either match the first or not;

The probability of matching is 1/11 and 10/11 for not matching;

If the sock matches, no further sock is taken;

If the socks don't match, a 3rd sock is taken;

The 3rd sock is taken from the remaining 10, 1 of which will match with the first sock and another which will match the second;

Therefore, the probability of taking a matching sock on the third pick will by 2/10 or 1/5 and the probability it will not match either of the first two is 8/10 or 4/5;

Once again, if the sock matches either of those previously taken, no further sock is taken;

If the socks don't match, a 4th sock is taken;

Now, there are 9 socks remaining in the drawer;

Picking is repeated;

The process is logical;

The attached picture shows a tree diagram representing this information in an easily digestible way and makes it easy to work out the desired probability;

With tree, diagrams, you just multiply across until you get to your desired outcome;

In this case, we are finding the probability of picking 5 socks exactly;

Each process splitting represents the picking of a sock;

The probability will be:

10/11 × 8/10 × 6/9 × 4/8 = 8/33 = 0.242...

An industrial factory makes 2 3/8 yards of rope every minute. The cost of each yard is $4.06. What is the total cost of rope that can be made in 15 minutes?

A. $36.63
B. $60.90
C. $21.44
D. $144.66

Answers

The answer is 144.66

can someone please help!!!

Answers

Answer:

WARWRAESTRDYTFJYwarehstrdjhtfj

Step-by-step explanation:

what is aas in Geometry?

Answers

Answer:

angle angle side

Step-by-step explanation:

god bless you hun

HELP DUE IN 20 minutes

Answers

Shortest to longest

C
B
A

A model sized cube has a side length of 15cm. The full sized version has a side length of 127.5cm. What is the scale?

Answers

Answer:

8.5

Step-by-step explanation:

I did give a detailed explanation here but someone deleted it :(

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