Mathematics College

what is the square root of 81 times 2

Answers

Answer 1

Answer:

Step-by-step explanation:

the square root of 81 is 9, because 9x9 is 81.

now we do (9x2)

=18

Answer 2

Answer: It is 9

Step-by-step explanation:

A square root is a number that has to be multiplied by itself to the number your looking for. So, 9 X 9 = 81.

Related Questions

Is a triangle with sides 5 feet, 10 feet, and 12 feet a right, acute or obtuse
triangle?

Answers

Answer:

acute angles

Step-by-step explanation:

non of the angles are of the same lenght

Given the functions flx) = 3x2, g(x) = x2 - 4x + 5, and h(x) = -2x2 + 4x + 1, rank them from leasrto greatest based on their axis of symmetry.

Answers

9514 1404 393

Answer:

f(x), h(x), g(x)

Step-by-step explanation:

For a quadratic in standard form, ...

ax² +bx +c

the axis of symmetry is ...

x = -b/(2a)

For the various functions, the axes of symmetry are ...

f(x): x = 0/(2·3) = 0

g(x): x = -(-4)/(2·1) = 2

h(x): x = (-4)/(2(-2)) = 1

From least to greatest axis of symmetry the functions are ...

f(x), h(x), g(x)

Which is greater, 0.28 or 0.205? Explain how you know.

Answers

Answer:

Step-by-step explanation:

0.28 is roughly the same as 0.280, which has 3 significant digits (same as 0.205 has 3 significant digits). It's easier when we compare numbers having the same number of decimal places.

Comparing 0.280 to 0.205, we see that the hundredths place of 0.280 (which is 8) is greater than the hundredths place of 0.205 (which is 0). Thus 0.28 is greateer than 0.205.

Find the area of the figure shown below and choose the appropriate result.
4 cm
6 cm
5 cm
3 cm

Answers

the answer is 39 cm^2

i did 6 • 4, then 5 • 3, and then added

hope this helps,, have a nice day :))

Hello, happy Friday, I am just here with some geometry questions.

Please only answer this if you know the answer. If you have a comment, please add it to the comment box. Only answer the question if you can explain your answer and why you think it is accurate. Thanks, good luck!

What is x? and how did you get it?

Answers

Answer:

x = 16

Step-by-step explanation:

step 1 - 64 + 100 + x = 180 (all triangles equals 180)

step 2 - 164 + x = 180

step 3 - 164 + x = 180

-164. -164

step 4 - 180 - 164 = 16

step 5 - 100 + 64 + 16 = 180

(I do this part to double check my work)

step 6 - x = 16

Answer:

x = 48

Step-by-step explanation:

The ratio:

x/64 = (100 - 64)/xx² = 64*36x = 48

-6+(-1)=
..................

Answers

Answer:

It's -7

Step-by-step explanation:

Answer:

-7

Step-by-step explanation:

how many solutions does this equation have?

5(x-3) + 6 = 4x + 3

Answers

Answer:

x=12

Step-by-step explanation:

5x-9=4x+3

subtract 9 from both sides

5x=4x+12

subtract 4x from both sides

x=12

Which polynomial is prime?
X4 + 3x2 - y2 - 3
X4 - 3x2 – x2 + 3
3x2 + x - 6x-2
3x2 + x - 6x + 3

Answers

Answer:

3x2 + x - 6x + 3

Step-by-step explanation:

Answer:

Step-by-step explanation:

Got it right on Edg.

(x^2 - 4)(x^2 + x - 12) = 0

Answers

Answer:

is that a T or F

Step-by-step explanation:

a license plate that has 3 numbers from 0 to 9 and 2 letters

Answers

Answer:

what's the question there

Find the circumference of a circle that has a diameter of 5 inches. Use 22/7 for pi.
15 in.
22/35 in.
15 3/7 in.
15 5/7 in.

Answers

Answer:

step 1. The circumference (c) of a circle is equal to the diameter of a circle x pi. c = d(pi) = 5pi

step 2. c = 5pi = 5(22/7) = 110/7 = 15 5/7.

a) Let P(t) be written as
P(t) = a cos[b(t - d)] + c
The minimum Pmin and the maximum Pmax of P(t) are given.
Pmin = 4
Pmax = 20
c = (Pmax + Pmin) / 2 = (20 + 4) / 2 = 12
|a| = (Pmax - Pmin) / 2 = (20 - 4) / 2 = 8
We now need to find the number of days t after January 1st at which P(t) is maximum by counting the days of the months from January to May and adding 21 days in June.
t = 31 + 28 + 31 + 30 + 31 + 21 = 172
We now use the period to find b (b > 0) as follows
period = 365 = 2π / b
hence b = 2π / 365
A cosine function without shift has a maximum at t = 0. P(t) has a maximum at t = 172. We can model P(t) by a cos(x) function shifted by 172 to the right as follows:
P(t) = 8 cos[(2π / 365)(t - 172)] + 12
check that P(t) is maximum at t = 172: P(172) = 8 cos[(2π / 365)(172 - 172)] + 12 = 8 cos[(0)] + 12 = 20
b) The graph of P(t) is shown below.

Answers

Answer:

perfect

Step-by-step explanation:

ice cream is served for dessert if Gio serves himself and 3 friends half a cup of ice cream how many total pints did Gio and his friends eat?

Answers

Answer:

0.25 pints

Step-by-step explanation:

To find how many pints they ate, find the number of pints in half a cup.

In 1 cup, there are 0.5 pints.

This means in half a cup, there will be 0.25 pints.

So, Gio and his friends ate 0.25 pints

complete the equation ×1/12=5/12+5/12+5/12

Answers

Answer:

x/12=15/12

x=15it is the answer

I need to know the area of this figure

Answers

Answer:

156 cm²

Step-by-step explanation:

Area of Triangle

= 1/2 * b * h

= 1 /2 * (17 - 9) * 12

= 6 * 8

= 48 cm²

Now

Area of parallelogram

= b * h

= 9 * 12

= 108 cm²

Total area

= (48 + 108) cm²

= 156 cm²

The scouts were constructing a scale model of their clubhouse. They were building the model out of toothpicks.
Below are some of the measurements they used.
One wall was made of 18 bricks and they used 3 toothpicks on the model.
A second wall they built used 6 toothpicks to represent 36 bricks on the actual clubhouse.
What was the scale factor (bricks : toothpicks) being used by the scouts?
A 6:1
B 8:1
12:1
D 16:1

Answers

You can send pictures

A because if you divide 18 by 3 and 36 by 6 you get 6 for each answer so it would be 6:1

I'll give Brainliest

Answers

Answer:

i think 4 but im not 100% sure

Step-by-step explanation:

Answer:

8 i guess

Step-by-step explanation:

HELP PLEASE

ARM SPAM (INCHES) HEIGHT (INCHES)
58 60
49 47
51 55
19 25
37 39
44 45
47 49
36 35
41 40
46 50
58 61
65 68

1. Which variable did you plot on the x-axis and which variable did you plot on the y-axis? Explain why you assigned the variables in that way.

2. Write the equation of the line of best fit using the slope-intercept formula y = mx + b. Show all your work, including the points used to determine the slope and how the equation was determined.

3. What does the slope of the line represent within the context of your graph? What does the y-intercept represent?

4. Test the residuals of two other points to determine how well the line of best fit models the data.

5. Use the line of best fit to help you to describe the data correlation.

6. Using the line of best fit that you found in Part Three, Question 2, approximate how tall is a person whose arm span is 66 inches?

7. According to your line of best fit, what is the arm span of a 74-inch-tall person?

Answers

Step-by-step explanation:

we have to write all things by which which x-axis is viraivil with you and y axis is variable with you and spleen in our right one formula X is equals to X is equals to y y - behind honey bunny i y is equals to x minus b right and right that formula and write if you don't know and I will tell you another this video is it was thank you so much

How many ways are there to place 3 indistinguishable red chips, 3 indistinguishable blue chips, and 3 indistinguishable green chips in the squares of a 3 x 3 grid so that no two chips of the same color are directly adjacent to each other, either vertically or horizontally?
A. 12,
B. 18,
C. 24,
D. 30 ,
E. 36

Answers

Answer:

E. 36

Step-by-step explanation:

Let:

[tex]C_1 =[/tex] color 1

[tex]C_2 =[/tex] color 2

[tex]C_3 =[/tex] color 3

Case I

C₂ C₃ C₂

C₃ C₁ C₃

C₁ C₂ C₁

Since C₁ has 3 choices, then C₂ has 2 choices and C₁ has 1 choice