Find the length of the side of a square if its area is 81 square inches.
A. 9 inches
B. 3 inches
C. 40.5 inches
D. 162 inches

Answer:

True or false

Step-by-step explanation:

Is this a true or false, and can you upload an image

Answer:

Ans 2

Step by step explanation :

2 X 1 = 2

Answer:

this is merely the Pythagorean Theorem. so we would do (2^2+1^2)^.5 = 2.236 = square root of 5 = answer B!!!

Answer: the answer is 80 cubic inches.

Step-by-step explanation:

To find the volume of a cube, you have to multiply length, width, and height. Therefore that is 4x5x4= 80 cubic inches

Answer:

x=53

y=26

H=106

G=93

Step-by-step explanation:

By the inscribed quadrilateral conjecture:

[tex]2x+(x+21)=180\\(3y+9)+(4y-11)=180\\3x+21=180\\3x=159\\x=53\\7y-2=180\\7y=182\\y=26\\H=2(53)=106\\G=(4(26)-11)=104-11=93[/tex]

Hope this helps!

Answer:

x=53

y=26

H=106

G=93

Step-by-step explanation:

im not really good with this stuff i tryed and hope this helps

Answer: 2.26 * 10^4

Step-by-step explanation:

Answer:

142.9

Step-by-step explanation:

litres of milk

30/100=x/125

10x=375

x=37.5

14% of milk

14/100=x/125+y

1750+14y=100x

1750=100x–14y

1750=100(37.5)–14y

1750=3750–14y

y=2000/14=142.9

Answer:

The calculation that would increase 275 by 10%:

275 x ( 1 + 10%) = 275 x (1 + 10/100) = 275 x 110/100 = 302.5

Hope this helps!

:)

Answer:

29/3

Step-by-step explanation:

C:

Answer:

7 miles per hour

Step-by-step explanation:

Speed = Distance / Time

If the distance was 15.75 miles, and the time was 2.25 hours, then doing 15.75 / 2.25 gets you 7 miles per hour.

You can check this by doing 7 x 2.25 which would get you 15.75

Answer:

the square root of 300 is 17. 32

Step-by-step explanation:

[tex] \sqrt{300} =17.32 \times 17.32[/tex]

Answer:

17.32

Step-by-step explanation:

step by step

Answer:

-20

Step-by-step explanation:

Answer:

[tex] - 20[/tex]

Step-by-step explanation:

[tex] (+ 34) + ( - 48) + ( - 32) + ( +26) \\ 34 - 48 - 32 + 26 \\ = (- 20) [/tex]

Answer:

k=13

Step-by-step explanation:

19 + 12k = –k − 20

19+20=39=13k

k=13

Answer: -3

Step-by-step explanation:

Let's solve your equation step-by-step.

19+12k=−k−20

Step 1: Simplify both sides of the equation.

19+12k=−k−20

19+12k=−k+−20

12k+19=−k−20

Step 2: Add k to both sides.

12k+19+k=−k−20+k

13k+19=−20

Step 3: Subtract 19 from both sides.

13k+19−19=−20−19

13k=−39

Step 4: Divide both sides by 13.

13k /13 =  −39/13

Answer:

40 m

Step-by-step explanation:

First we have to find the width. the width is 3 less than the length, which is 8... so the width is 5. Area is found by multiplyign length times width to get 40 m.

If the width of the deck is 3 m less that the length. The length is 8m. then the area to be waterproofed is 40 m²

A rectangle is a quadrilateral with four right angles

The area of Rectangle is length times of width.

Given that Ms. Luna is waterproofing the top of a rectangular wood deck.

The width of the deck is 3 m less that the length.

Width=Length-3

Length=8

Area of rectangle=Length×Width

=Length×(Length-3)

=8×(8-3)

=8×5

=40 m²

Hence, If the width of the deck is 3 m less that the length. The length is 8m. then the area to be waterproofed is 40 m²

To learn more on Rectangle click:

https://brainly.com/question/20693059

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Answer:

They drive 6.875 miles per hour

Hope this helps :)

Answer:

Yup he can make 7 rice balls

Step-by-step explanation:

If he has 700 grams of rice and he only needs 100 grams welp that's 700/100

first you can take the zeros off so it turns into 7/1 and anything devided by it's self is itsself

So 7/1 is 7

Justin can make 7 rice balls if he has 700 grams of rice because he can make 1 rice ball using 100 grams.

It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.

We have:

Justin's rice ball recipe uses 100 grams of rice to make 1 rice ball.

The ratio of the quantity of the rice to rice ball:

100:1

Multiply the above ratio by 7

700:7

Thus, Justin can make 7 rice balls if he has 700 grams of rice because he can make 1 rice ball using 100 grams.

Learn more about the ratio here:

brainly.com/question/13419413

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Answer:

- Mr Cash's company business shows the maximum profit in 3 years after starting the business.

- The maximum profit = 23 thousand dollars = $23,000

- Anytime beyond 5.77 years will be too late to sell the business as the profit margins have entered negative values.

Step-by-step explanation:

Complete Correct Question

The profits of Mr. Cash’s company is represented by the equation

p(t)=-3t^2+18t-4,

where p(t) is the amount of profit in hundreds of thousands of dollars and t is the number of years of operation. He realizes his company is on the down turn and wishes to sell before he ends up in debt.

In what year of operation does Mr. Cash’s business show maximum profit? What is the maximum profit? What time will it be too late to sell business?

Solution

The profit function is given as

p(t) = -3t² + 18t - 4

p(t) = profit in thousand of dollars

t = time in years.

To find the year where the maximum profit is obtained, we use differentiation analysis to obtain the maximum of the profit function and the corresponding time where it occurs.

At the maximum of the profit function,

(dp/dt) = 0 and (d²p/dt²) < 0

p(t) = -3t² + 18t - 4

(dp/dt) = -6t + 18

At maximum profit

(dp/dt) = -6t + 18 = 0

6t = 18

t = (18/6) = 3 years.

(d²p/dt²) = -6 < 0

Hence, this value of t corresponds to the maximum value of the profit function.

The maximum profit is then obtained when t = 3

p(t) = -3t² + 18t - 4

p(3) = -3(3²) + 18(3) - 4 = 23 thousand dollars

The business will be late to sell when the profits from the business start to run into negative values. So, we obtain the time when the profit margins reaches 0.

p(t) = -3t² + 18t - 4 = 0

-3t² + 18t - 4 = 0

Solving the quadratic equation

t = 0.23 years or t = 5.77 years

Since the profits first start rising from the value at t=0 up till the maximum profit at t=3, 0.23 years isn't a realistic point to sell the business as this is part of the onset of profits, but beyond 5.77 years on the other hand represents when the business stops to bringing in profits and leads to losses.

Hope this Helps!!!

Answer:

PLEASE GIVE BRAINLIEST AND THANKS

700mg

Step-by-step explanation:

560 divided by 80= 7

7 x 100=700mg

Solve for x.

41. (x + a)/b + b = a

1. Subtract b.

(x + a)/b = a - b

2. Multiply by b.

x + a = ab - b^2

3. Subtract a.

x = ab - b^2 -a

42. bx + a = dx + c

1. Subtract a.

bx = dx + c - a

2. Subtract dx.

bx - dx = c - a

3. Factor x out.

x(b -d) = c - a

4. Divide by (b-d).

x = (c-a)/(b-d)

43. cx - b = ax + d

1. Add b.

cx = ax + d + b

2. Subtract ax.

cx - ax = d + b

3. Factor x out.

x(c -a) = d + b

4. Divide by (c-a).

x = (d +b)/c-a).

44. a(x -3) + 8 = b(x - 1)

1. Distribute everything.

ax - 3x + 8 = bx - b

2. Subtract 8.

ax - 3a = bx - b -8

3. Subtract bx.

ax - bx - 3a = -b - 8

4. Factor x out.

x ( a - b) - 3a = -b - 8

5. Add 3a.

x ( a - b) = -b - 8 + 3a

6. Divide by (a-b).

x =  (-b - 8 + 3a) / (a - b)

45. c ( x + 2) - 5 = b ( x -3)

1. Distribute everything.

cx + 2c -5 = bx - 3b

2. Add 5.

cx + 2c = bx - 3b + 5

3. Subtract bx.

cx - bx + 2c = -3b + 5

4. Factor x out.

x ( c - b ) + 2c = -3b + 5

5. Subtract 2c.

x ( c - b) = -3b + 5 - 2c

6. Divide by ( c - b).

x = (-3b + 5 - 2c)/(c-b)

46. a (3tx - 2b) = c (dx -2)

1. Distribute everything

3txa - 2ba = cdx - 2c

2. Subtract cdx.

3txa - cdx - 2ba = -2c

3. Add 2ba.

3txa - cdx = 2ba - 2c

4. Factor x out.

x ( 3ta - cd) = 2ba - 2c

5. Divide by (3ta - cd).

x = (2ba - 2c)/(3ta - cd)

47. b ( 5px - 3c) = a (qx -4)

1. Distribute everything.

5bpx - 3bc = apx - 4a

2. Subtract apx.

5bpx - apx - 3bc = -4a

3. Add 3bc.

5bpx - apx = -4a + 3bc

4. Factor x out.

x ( 5bp - ap ) = -4a + 3bc

5. Divide by (5bp - ap).

x = (-4a + 3bc)/(5bp - ap)

48. [a/b(2x - 12)]= c/d

1. Multiply b first.

a ( 2x - 12) = c/d

2. Multiply by d.

ad(2x - 12) = cb

3. Distribute ad.

2adx - 12ad = cb

4. Add 12ad.

2adx = cb + 12ad

5. Divide by 2 ad.

x = (cb + 12ad)/2ad

Answer:

1/4

Step-by-step explanation:

Since on this spinner, there are 2 odd numbers, 2 even numbers, and 4 numbers in total, for the both spins there is a 1/2 probability that you land on the desired outcome. 1/2*1/2=1/4. Hope this helps!

Answer:

Option (1).

Step-by-step explanation:

Dimensions of two triangles have been given as 3.6, 5.4, 6 units and 3, 4.5, 5 units.

If triangle one is dilated to form triangle two, then the ratio of the sides will be

Ratio = [tex]\frac{\text{Side of triangle (1)}}{\text{Corresponding side of triangle (2)}}[/tex]

         = [tex]\frac{3.6}{3}[/tex]

Similarly, ratio of other two sides will be = [tex]\frac{5.4}{4.5}[/tex] and [tex]\frac{6}{5}[/tex]

Since the triangle (1) was dilated to form triangle (2), so both triangles will be similar and the ratios of their corresponding sides will be equal.

Therefore, Ratios of the sides = [tex]\frac{3.6}{3}=\frac{5.4}{4.5}=\frac{6}{5}[/tex]

Option (1) will be the answer.

Answer:

StartFraction 3.6 Over 3 EndFraction = StartFraction 5.4 Over 4.5 EndFraction = StartFraction 6 Over 5 EndFraction

Answer:

spring tides

Step-by-step explanation:

spring tides occur twice a month to produce an extra-high tidal bulge and extra-low tidal dip

Answer:

You are using CAH which is adjacent/hypotenuse

Step-by-step explanation:

1.7101007166283435 is your answer

Answer:

1.710

Step-by-step explanation:

It got deleted before, idk why, but you are using CAH, so adjacent over hypotenuse. You would have to multiply cos(70) by 5 to get the answer.

Answer:

The answer is 1/3

Step-by-step explanation:

Since there are 3 planes that arrive in a random order, there is a 1 in 3 chance that the plane from Chicago will arrive first. Hope this helps!

Answer:

5020000000000.

Step-by-step explanation:

5.02×10^2 is in scientific notation so we must convert it to standard form getting that answer.

Answer:

24

Step-by-step explanation:

This is the same question as before just flipped around

Answer:

x=-4

Step-by-step explanation:

[tex]\frac{1}{4} x - \frac{1}{8} = \frac{7}{8} + \frac{1}{2} x[/tex]

first group the like terms

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

as 1/8 plus 7/8 = 1

then add the x's together

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

and finally

x = -4

Answer:

It is not

Step-by-step explanation:

Explanation:

Using a calculator, we find that

sqrt(1815) = 42.6028168082816

which is not a whole number. The decimal numbers go on forever without any known pattern. Therefore, this number is irrational. This means it is not rational.

Answer:

El total de líquido utilizado es [tex]\frac{5}{6} de litro[/tex]. Se echa [tex]\frac{1}{6}[/tex] de litro más de leche que de jugo

Step-by-step explanation:

Para saber la cantidad total de líquido, basta con sumar las cantidades de leche y de jugo de naranja. Vamos a asumir que usa 1/3 de litro de jugo de naranja.

En este caso el total de líquido es 1/2 litro + 1/3 litro. Dado que estas fracciones tienen distinta denominador, debemos sumarlas de la siguiente manera

[tex] \frac{1}{2}+\frac{1}{3} = \frac{1\cdot 3 + 2\cdot 1}{2\cdot 3} = \frac{5}{6}[/tex]

Para calcular la cantidad extra de leche de más que la cantidad de jugo, restamos estos números. Es decir

[tex] \frac{1}{2}-\frac{1}{3} = \frac{1\cdot 3 - 2\cdot 1 }{2\cdot 3} = \frac{1}{6}[/tex]

Es decir, que echamos [tex]\frac{1}{6}[/tex] de litro más de leche que de jugo.

Answer:

$500 would be better, for 4 months only...

Answer:

yes, because if you input 5 for x it would be -8

and if u input -9 for y it is right as -8 is closer to 0 than -9

Answer:

175

Step-by-step explanation:

To find a proportion, you need to put both parts over the total.  You would put the part of silver (14) over the total (80) and the part you are trying to find (X) over the total number of students (1,000). Then you cross multiply 14 x 1,000 and divide by 80 giving you 175 silver cars.