Mathematics High School

1. The square of a number equals nine times that number. Find the number.
2. Suppose that four times the square of a number equals 20 times that num-
ber. What is the number?
3. Twice the square of the sum of a number and 3 is 98. Find the number.
​

Answers

Answer 1

Answer:

Step-by-step explanation:

The answer of 1 question is 9 because square of 9 is 81 and 9 x 9 times is 81

Related Questions

What is the slope and the y-intercept in this linear equation?



y = -x + 4

Answers

Slope: -1

y-intercept: 4

*Any time x is by itself, it is either positive 1 (just x by itself) or negative 1 (x with a negative sign)

Jeannie took 40 milligrams of a medicine. The amount of medicine in her body will decrease by 15% each hour. Approximately how much of the medicine will be left in Jeannie's body after 4 hours? ​

Answers

Answer:23

Step-by-step explanation:

29.24/0.153 is what?

Answers

Answer:

191.111111111

Step-by-step explanation:

29.24 / 0.153 =191.111111111

What is the image point of (4,8) after a translation right 1 unit and up 5 units?

Answers

Answer: (5,13)

Step-by-step explanation:

Answer:

(5,13)

Step-by-step explanation:

A deep-sea exploring ship is pulling up a diver at a rate of 25 feet per minute the diver is 200 feet below sea level how deep was in diver 10 minutes ago?

Answers

Answer:

the diver was 450 ft below sea level

Step-by-step explanation:

25ft per min

25x10=250

250+200=450ft

Answer:

450 feet below sea level

Step-by-step explanation:

25 feet per minute 10 minutes, so you multipy them 25x10=250, and then add that to the level he's at right now, 200+250=450.

Monica ran 20 miles in two days. How many miles did she run each day, if she ran 4 more miles on the second day than on the first day?

On the first day she ran _____________ miles, and on the second day she ran _______ miles.

Answers

Answer:

6 miles on the first day and 14 miles on the second day

Step-by-step explanation:

Answer:

[tex]in \: day \: one \: she \: ran \: 8 \: mile s.\\ in \: day \: two \: she \: ran \: 12 \: miles.[/tex]

Step-by-step explanation:

[tex]let \: the \: number \: of \: miles \: for \: the \: first \: day \: be : x \\ let \: the \: number \: of \: miles \: for \: the \: second \: day \: be : x + 4 \\ therefore \: in \: two \: days \: she \: ran \: 20 \: miles = x + (x + 4) \\ now......thats \: the \: required \: equation....... \\ if \: x + (x + 4) = 20 \: then : \\ 2x + 4 = 20 \\ 2x = 20 - 4 \\ 2x = 16 \\ x = 8. \\ so \: in \: day \: one \: she \: ran \: 8 \: mile \\ in \: day \: two \: she \: ran \: (8 \: + 4) \: miles = 12 \: miles[/tex]

its so funny how you reacted to the other helper

♨Rage♨

What is 5.2 plus 176.2

Answers

Answer:

181.4

Step-by-step explanation:

Answer:

5.2 + 176.2 = 181.4

Step-by-step explanation:

What is the area of a rectangle piece of pavement that is 20 ft wide by 15 yards long

Answers

Answer:

300

Step-by-step explanation:

To find the area, you should multiply 20 by 15

Answer: 6,000 square ft

Step-by-step explanation:

w=20 ft

l=100 yd

1 yard = 3 feet

l = 100 yd=100 times 3 ft=300 ft

lw = 300 times 20 = 6,000 square feet

Solve for this and get 12 points

Answers

Answer:

1293712321awdeide

Step-by-step explanation:

dedewaoak321321masmmsms

Does someone know the answers to this if not can someone do it

Answers

Answer:

in the pic below!!

Step-by-step explanation:

Answer:

thats a lot of words

Step-by-step explanation:

11. |-8| + |6| =
12. |-3| +8 =
13.12 + |-13| =
14.6 + |4||
15. -14-16| =

Answers

Answer:   ( -8)+(6)= 14

     

                (-3)+8 = 11

               

                12+(-13) = 25

     

           -14-16= -30

 

        6+(41) =47

Find the difference of 3 and -2

Answers

Answer:

5

Step-by-step explanation:

3 - -2Simplify: 3 + 23 + 2 = 5

I hope this helps!

The students at Norton School were asked to name their favorite type of pet. Of the 430ilar results, about students surveyed, 258 said that their favorite type of pet was a dog. Suppose that only 100 students were surveyed, with similar results about how many students would say that a dog is their favorite types of pet?

Answers

Answer: 60

Step-by-step explanation:

From the question, we are informed that 430 students were surveyed and 258 said that their favorite type of pet was a dog. The fraction/decimal of those that chose dog as their favorite pet will be:

= 258/430

= 3/5

= 0.6

Suppose that only 100 students were surveyed, the number of students that would say that a dog is their favorite types of pet will be:

= 0.6 × 100

= 60

. Factor this Quadratic. What is it in factored form?
x^2-14x+45

(x-15)(x-3)=0
(x+9)(x+5)=0
(x+15)(x+3)=0
(x-9)(x-5)=0

Answers

Last one. Do FOIL. -9•-5=45. -9x+-5x=-14x.
(X-9)(x-5)
X^2-5x-9x+45
x^2 -14x + 45.

An appliance store decreases the price of a 19-in television set 25% to a sale price of $482.63. What is the original price?

Answers

603.28 That should be the price

is 9.68 rational or irrational?​

Answers

Answer:

rational

Step-by-step explanation:

Answer:

rational

Step-by-step explanation:

PLEASE ANSWER IM DESPERATE ⚠️⚠️

Answers

Y=x+2 this is the answer

Answer:

blue, y = x + 2

Step-by-step explanation:

If LP = 15 and PR = 9, find LR. Explain. LR = 24 because 15 + 9 = 24 according to the addition property of equality. LR = 6 because LR + LP = PR according to the Segment Addition Postulate, and 6 + 9 = 15 using substitution. LR = 24 because LP + PR = LR according to the Segment Addition Postulate, and 15 + 9 = 24 using substitution. LR = 6 because 15 − 9 = 6 according to the subtraction property of equality.

Answers

Step-by-step explanation:

Given,

LP = 15, PR = 9

Point P lies on the line segment PR. It would mean that,

LP + PR = LR

⇒LR = 15 + 9

⇒ LR = 24

Hence, "LR = 24 because LP + PR = LR according to the Segment Addition Postulate, and 15 + 9 = 24 using substitution" is the correct option.

how can you get 6 with four 6s , the problem is
6 6 6 6 equals 6

Answers

Answer:

6666 divided by 1111 equals 6

Step-by-step explanation:

Pls answer: -4y - 4 + (-3)

Answers

The answer is -4y-7 Goodluck!
Answer: -4y - 7

Explanation: Keep the -4y and combine like terms. -4 - 3 = -7

Hope this helped! :)

Find the zero of the function.
f(x) = -6x + 18

Answers

Answer:

(3,0)

Step-by-step explanation:

f(x) = -6x + 18

Let f(x) = 0

0 = -6x + 18

Subtract 18 from each side

-18 = -6x

Divide by -6

-18/-6 = -6x/-6

3 =x

The zero is 3

Answer:

(3,0)

Step-by-step explanation:

Which of the following integer equations has a negative solution?

Answers

where’s the question

Caitlyn spends $17 at the store. She buys a mop for $5 and 3 bottles of floor cleaner. If x represents the cost of each bottle of cleaner, the equation that can be used to find the value of x is 3 x + 5 = 17. Which shows the first step that should be taken to verify that $4 is the solution to the equation?
3 (4) minus 5 = 17
3 (4) = 17 + 4
3 (4) + 5 = 17 + 5
3 (4) + 5 = 17

Answers

Answer:

3(4) + 5 = 17

Step-by-step explanation:

Caitlyn spends $17. Buys mop for $5 and 3 floor cleaner. x=cleaner

3x + 5 = 17

3(4) + 5 = 17

12 + 5 = 17

17 = 17 (true)

It would have to be the last one 3(4)+5=17

a line has a slope of –3/4 and passes through the point (-5, 4). which is the equation of the line

Answers

Step-by-step explanation:

4=-3/4(-5)+b

4=15/4+b

16/15=b

y=-3/4+16/15

Which phrase should be inserted on the line to make a true statement? Use the models to help.

picture 1 picture 2



is greater than
is less than
cannot be compared to
is equal to

Answers

Answer:

Is Equal to

Step-by-step explanation:

2/3 = 8/12

2/3 = 4/6

2/3 = 2/3

please help!! giving 20 points !

What is the area of this rectangle?

Answers

Where are the options ????? Please tell

In the figure, MQ , SP and NR intersect at point O. What is the value of x? A. 110° B. 60° C. 70° D. 90°

Answers

Where is the figure??

The value of X which is at point O would be = 70°. That is option C.

What is angels of a straight line?

The angles of a straight line is defined as the angles that when added up, sums up to 180°.

Both angle NOP, POQ and QOR are angles on a straight line that adds up to 180°.

That is;

X = 180-(50+60)

= 180-110

= 70°

Learn more about angles here:

https://brainly.com/question/28394984

#SPJ2

What direction will the parent graph move if... f(x - 6) = (x - 6)

Answers

Going from f(x) = x to g(x) = f(x-6) = x-6 will move the graph 6 units to the right.

Effectively replacing x with x-6 shifts the xy axis 6 units to the left, giving the illusion the function curve shifts 6 units to the right.

Answer: shifts 6 units to the right.

is 61% a rational number​

Answers

Answer: No

Step-by-step explanation: It is irrational because 61 is a prime number.

Coach Jones has a rope that is 36 feet long. He wants to divide it into 9 equal parts. Write an equation to find how long each part will be. Use a ? to represent the unknown number. Then solve the equation and explain how you determined the length of each part.

Answers

Answer:

36/9= a

and

4

Step-by-step explanation:

you just divide 36 by 9 and you get 4.

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