13) What are the solutions to y2 = 81?

Answers

Answer 1

Step-by-step explanation:

y²=81

y²=9²

:. bases same powers equal,

y=9.

hope this helps you.

Answer 2
9 would be the y because if you substitute the 9 with the y it would be 9 to the second power which would mean you would multiply 9 • 9

Related Questions

HELP PLEASE!!!!

The 10 largest soccer and football stadiums have a capacity of at least of 1 x 105 people. Each stadium has 8 events each year for 10 years.

How many total people attended these events if every event was seated to capacity? Select ALL that apply

A

at least 80,000,000 people

B

at least 800,000,000 people

С

at least 0.8 x 107 people

D

at least 8 x 107

people

E

at least 80 x 107 people

Answers

We have 10 stadiums each holding 105 people.
If each stadium has 8 events each year that’s 80 events per year in total.
So there is 800 events throughout the 10 years (each year holding 80 events).
To find the total number of people that attended the event we multiply the number of people that attended each event by how many events we had in total (105x800=84000)
So, C,D and E apply.

Help please i need this done by tomorrow

Answers

Step-by-step explanation:

here you go I hope my answer is correct goodbye

Answer:

i think you draw it

Step-by-step explanation:

it tells you the answer

5/11 as a decimal 4 decimal places

Answers

Answer:

0.4545

Step-by-step explanation:

Just. divide 5 by 11. You're supposed to be in highschool, mate. Just use a calculator.

If f(x) = 5x + 4 what is the value of f(-2) ?

Answers

X = -2

5(-2) + 4 = ? (Multiply -2)

-10 + 4 = -6

Answer:

-6

Step-by-step explanation:

Take the x out for -2

f(-2) is equivalent to x=-2

f(x) = 5x + 4

1. f(-2)=5(-2)+4

2. f(-2)= -10+4

3. -6

help?? ASAPpppppppppppp

Answers

Answer:

y = x - 4

Step-by-step explanation:

The equation is just y = x shifted down 4 units, so it's y = x - 4. If you have to use all of the symbols, you can write "y = x * 1 - 4 + 0". Otherwise, use the one under "Answer" as it is shorter

Answer:

Step-by-step explanation:

you find slope (y1-y2)/(x1-x2) = (0-1)/(4-5) = -1/-1= 1

then you take a point (4,0)

y-0 = 1(x-4)

I hope this helps!

so I'm not sure how to draw a square with the area of 3 units

Answers

The area of a square is width x height where both the width and height is the same length because a square has the same lengths on all four sides.

So we can say “3 = L x L” where L is any side length of the square

L times L is just simplified to L squared: “3 = L^2”

We can take the square root of both sides to get rid of the L squared. We are left with “the square root of 3 equals L”.
Sqrt(3) = L

And on a calculator the square root of 3 is 1.73205080757.

1.73205080757 = L.

The square is 4 lines in a box each with the length of 1.73205080757 units.

Solve for x
See the picture for problem! Please and thank you!

Answers

Answer:

x = 9

Step-by-step explanation:

( 17x + 7 )° = ( 13x + 3 )° + 40°

17x + 7 = 13x + 3 + 40

17x - 13x = 43 - 7

4x = 36

x = 9

Giving brainlyest .... .....

Answers

Answer:

4.475 is the answer.

Step-by-step explanation:

also hide your tabs just in case ;)

Answer:

4.475 believe me i did k12 before plz give me brainlyiest explanation:

Goran drove 660 miles in 12 hours.At the same rate, how long would it take him to drive 385 miles?

Answers

Answer:

7 Hour

Step-by-step explanation:

Divide 660 by 12 to get the unit rate.

660 divided by 12 equals 55.

Hence, in 1 hour, Goran drives 55 miles. Next, divide 385 by 55 to get 7.

Therefore,Goran 7 hours to drive 385 miles.

Answer:

Hello, There!

First we have to find Out How fast Goran can go in one hour and If we dived by 660 ÷ 12 = 55

Now We know that Goran Drove [tex]55[/tex] Miles in 1 hour

Since We figured out How fast Goran can go in one miles we can add/multiply  to get your final Answer

We can add like this 55, 110, 165,  220, 275, 330, 385

Now we Can Stop because the Question says "Goran drove 660 miles in 12 hours.At the same rate, how long would it take him to drive 385 miles"

And Counting the times we Added we Have the Answer 7

Therefore, It took Goran 7 hours Drive 385 Miles

Write the converse of the conditional statement below.

If angle 2 and angle 3 are vertical angles, then angle 2 is congruent to angle 3.

Answers

If angle 2 is congruent to angle 3, then angle 2 and angle 3 are vertical angles

Please solve the math problem for me... I will mark you brainliest

Answers

Answer:

x = 5

Step-by-step explanation:

3x + 1 should equal 16

Answer:

X=5

Step-by-step explanation:

3x+1=16

move the 1 over to the 16 so it is 16 - 1 = 15

3x=15

Move the 3 over to where the 15 is in order to get x by itself

3/3 = x

3/15 = 5

so X should = 5

Without using a calulator, find A and B, A^B - B^A = 1.

Answers

Answer:

A = 1

B = 0

Step-by-step explanation:

Write the Prime Factorization of the following Numbers:
(a) 10




(b) 37




(c)25

Answers

(a) 10 = 2x5

(b) 37= 1x37
(c) 25=5x5

Someone pls help me I will make you brain

Answers

Answer:

base salary

Step-by-step explanation:

f(0) means that he had no sales so the only money made would be from the base salary

decrease 9.375. by 4.37

Answers

Answer:

5.005

try that, im pretty sure you subtract

5.005 is the answer: 9.375-4.37 since it says decrease

This week a pack of tomato plants cost $25 next week the plants on sale for 15% off Larissa wants to know the price of the tomato plants if she buys them next week

Answers

Step-by-step explanation:

15%25$

[tex] \frac{15}{100} \times 25[/tex]

[tex] \frac{375}{100} [/tex]

=3.75

25-3.75=21.25$

Find the result when 68 is decreased by 50%.

Answers

Answer:

34

Explanation:

When 68 is decreased by 50%, that would mean that it is decreasing by half of that number. Half of that number would be 34 and that would be your answer.

5/6x10 ......................

Answers

Answer:

67

Step-by-step explanation:

you divide the two numbers then you multiply by ten

chứng minh: x(4+1/3*x+48)=1440

Answers

Step-by-step explanation:

1

3 x2+52x=1440

Step 2: Subtract 1440 from both sides.

1

3 x2+52x−1440=1440−1440

1

3 x2+52x−1440=0

For this equation: a=0.3333333333333333, b=52, c=-1440

0.333333x2+52x+−1440=0

Step 3: Use quadratic formula with a=0.3333333333333333, b=52, c=-1440.

x=

−b±√b2−4ac

2a

x=

−(52)±√(52)2−4(0.333333)(−1440)

2(0.333333)

x=

−52±√4624

0.6666666666666666

x=24,−180

Answer:

x=24,−180

Help



O A) 18cm?
OB) 36cm
OC) 72cm
D) 144 cm

Answers

Answer:

C) 72cm

Step-by-step explanation:

Multiply 12 x 6

hello can anyone help?

Harry drives 182 miles.
His average speed is 35 miles per hour.
How long does the journey take?
Give your answer in hours and minutes.

Answers

Answer:

5 hours 12 minutes

Step-by-step explanation:

Amount of time the journey took = 182 miles ÷ 35 miles/h

                                                       = 5.2h

                                                       = 5h 12mins

Jasper and Muthu cycled from Town P to Town Q. Jasper cycled at a speed of 36 km/h

and reached Town Q in 5 h. Muthu's cycling speed was 40 km/h.

(a) What was the distance between Town P and Town Q?

(b) How many minutes did Muthu take to cycle from Town P to Town Q?

Answers

Answer:

a,khoảng cách từ thị trấn P đến thị trấn Q là

Step-by-step explanat  io  n:

36*5=180(km)

b,Muthu đi xe đạp từ thị trấn P đến thị trấn Q hết số phút là:

180/40=4,5(h)=270(phút)

NO LINKS IF YOU HAVE LINK DO NOT ANSWER PLEASE ANSWER NO LINKS Please no links will mark brainiest for complete and correct answer.
PLEASE SHOW ALL OF YOUR WORK
Solve for p
3(2p−1)−2(3p+4)=11p

Answers

Answer:

p = -1

Step-by-step explanation:

3(2p - 1) - 2*(3p+ 4) = 11p

Use distributive property: a(b +c) =a*b +a*c

3*2p -3*1 -2*3p + (-2)*4 = 11p

6p - 3  - 6p - 8 = 11p

6p - 6p - 3 - 8 = 11p

          - 11 = 11 p

Divide both sides by 11

     -11/11 = p

p = -1

Please help me to solve this question. Thank you​

Answers

Answer:

cheating in exam mmmmmmmm

A water bucket in your backyard has a small hole in it. You notice that it drained a total of 3.5 liters

in 4 days. What is the average change in water volume each day? (hint: divide)

Answers

In each day the average change in the water volume is 0.875 liters

The table shows the cost of some apples. Which function ƒ(x) is represented in the table?

A)

ƒ(x) = 2x + 2

B)

ƒ(x) = 0.5x

C)

ƒ(x) = 0.5x + 2

D)

ƒ(x) = 2x

Answers

Answer:

D) f(x) = 2x

Step-by-step explanation:

The ordered pairs from the table:

(1, 2), (2, 4), (3, 6)

Find the slope:

m = (4 - 2)/(2 - 1) = 2

Find the y- intercept:

2 = 2*1 + b ⇒ b = 0

The function is:

f(x) = 2x

Correct choice is D

Take any two pairs

(1,2)(3,6)

Slope

m=6-2/3-1m=4/2m=2

Equation in point slope form

y-2=2(x-1)y-2=2x-2y=2x

pa answer po plss plssss

Answers

29/32

Step-by-step explanation:

ng x value 32wrffddfddfffryufcjhfddxhjhddxffdssdtt

A jumping spider's movement is modeled by a parabola. The spider makes a single jump from the origin and reaches a maximum height of 10 mm halfway across a horizontal
distance of 80 mm.
Part A: Write the equation of the parabola in standard form that models the spider's jump. Show your work. (4 points)
Part B: Identify the focus, directrix, and axis of symmetry of the parabola. (6 points)

Answers

A parabola is a mirror-symmetrical U-shape.

The equation of the parabola is [tex]\mathbf{y = -\frac{1}{640}(x - 80)^2 + 10}[/tex]The focus is [tex]\mathbf{Focus = (80, -1760)}[/tex]The directrix is [tex]\mathbf{y = \frac{1}{640}}[/tex]The axis of the symmetry of parabola is: [tex]\mathbf{x = 80}[/tex]

From the question, we have:

[tex]\mathbf{Vertex: (h,k) = (80,10)}[/tex]

[tex]\mathbf{Origin: (x,y) = (0,0)}[/tex]

The equation of a parabola is:

[tex]\mathbf{y = a(x - h)^2 + k}[/tex]

Substitute the values of origin and vertex in [tex]\mathbf{y = a(x - h)^2 + k}[/tex]

[tex]\mathbf{0 = a(0 - 80)^2 + 10}[/tex]

[tex]\mathbf{0 = a(- 80)^2 + 10}[/tex]

[tex]\mathbf{0 = 6400a + 10}[/tex]

Collect like terms

[tex]\mathbf{6400a =- 10}[/tex]

Solve for a

[tex]\mathbf{a =- \frac{1}{640}}[/tex]

Substitute the values of a and the vertex in [tex]\mathbf{y = a(x - h)^2 + k}[/tex]

[tex]\mathbf{y = -\frac{1}{640}(x - 80)^2 + 10}[/tex]

The focus of a parabola is:

[tex]\mathbf{Focus = (h, \frac{k+1}{4a})}[/tex]

Substitute the values of a and the vertex in [tex]\mathbf{Focus = (h, \frac{k+1}{4a})}[/tex]

[tex]\mathbf{Focus = (80, \frac{10+1}{4 \times -\frac{1}{640}})}[/tex]

[tex]\mathbf{Focus = (80, -\frac{11}{\frac{1}{160}})}[/tex]

[tex]\mathbf{Focus = (80, -11\times 160)}[/tex]

[tex]\mathbf{Focus = (80, -1760)}[/tex]

The equation of the directrix is:

[tex]\mathbf{y = -a}[/tex]

So, we have:

[tex]\mathbf{y = \frac{1}{640}}[/tex] ----- the directrix

The axis of symmetry is:

[tex]\mathbf{x = -\frac{b}{2a}}[/tex]

We have:

[tex]\mathbf{y = -\frac{1}{640}(x - 80)^2 + 10}[/tex]

Expand

[tex]\mathbf{y = -\frac{1}{640}(x^2 -160x + 6400) +10}[/tex]

Expand

[tex]\mathbf{y = -\frac{1}{640}x^2 +\frac{1}{4}x - 10 +10}[/tex]

[tex]\mathbf{y = -\frac{1}{640}x^2 +\frac{1}{4}x }[/tex]

A quadratic function is represented as:

[tex]\mathbf{y = ax^2 + bx + c}[/tex]

So, we have:

[tex]\mathbf{a = -\frac{1}{640}}[/tex]

[tex]\mathbf{b = \frac{1}{4}}[/tex]

Recall that:

[tex]\mathbf{x = -\frac{b}{2a}}[/tex]

So, we have:

[tex]\mathbf{x = -\frac{1/4}{2 \times -1/640}}[/tex]

[tex]\mathbf{x = \frac{1/4}{1/320}}[/tex]

This gives

[tex]\mathbf{x = \frac{320}{4}}[/tex]

[tex]\mathbf{x = 80}[/tex]

Hence, the axis of the symmetry of parabola is: [tex]\mathbf{x = 80}[/tex]

Read more about parabola at:

https://brainly.com/question/21685473

find the square root of 20 upon 121

Answers

Answer:

heres the square root of 20 4.47214 but i dont know what else to do for this answer. (sorry)

Step-by-step explanation:

√20 = √(4 * 5) = √4 * √5 = 2√5 ≈ 4.47214

May I please receive help?

Answers

Answer:

81+71+x=180

152+x=180

x=180-152

x=28°

Step-by-step explanation:

Hope that this is helpful.

Have a great Day.

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