Tom and Jane want to build a round swimming pool in their backyard that is 20 feet across. How many square feet will the pool be? Use 3.14 for pi.

Answer:

8 times 34= 272

Step-by-step explanation:

Answer:

27 years old

Step-by-step explanation:

What I know

Let D = Dave, S = Sabrina, etc. Then:

(1) [tex]D=0.15S[/tex]

(2) [tex]L=0.75S[/tex]

(3) [tex]R=3.00D[/tex]

(4) [tex]D+S+L+R=141[/tex]

Want to find R. Taking equation 3 and rewriting equation 4, we get

[tex]R=3.00D[/tex]

[tex]R=141-D-S-L[/tex]

So if [tex]R=R[/tex], then

[tex]3D=141-D-S-L-R[/tex]

[tex]4D=141-S-L[/tex] by adding [tex]D[/tex] to both sides.

Using equation 1 and equation 2, I can rewrite everything in terms of [tex]S[/tex] and get:

[tex]4(0.15S)=141-S-0.75S[/tex]

[tex]0.6S=141-1.75S[/tex]

[tex]2.35S=141[/tex] by adding [tex]1.75S[/tex] to both sides.

[tex]S=60[/tex] by dividing 2.35 both sides.

Now that I know Sabrina's age, I'll work towards getting Rhianna's using equation 1 and equation 3:

[tex]D=0.15(60)=9[/tex]

[tex]R=3.00(9)=27[/tex]

Checking my work:

Dave: 9

Sabrina: 60

Luca: 45 (since 9+60+45+27=141)

Rhianna: 27

9 is 15% of 60

45 is 75% of 60

27 is 300% of 9

9514 1404 393

Answer:

  (x, y) ⇒ (x -5, y +3)

Step-by-step explanation:

Pick a point on the original polygon. The extreme left point (at (1, 0)) will do.

Locate the corresponding image point on ABCDE. (It is point B(-4, 3).) Using coordinates, or counting grid squares, determine what must be added to the original point to get the image point.

Here, that addition is 5 squares left and 3 squares up:

  image - original = (-4, 3) -(1, 0) = (-5, 0)

So, the transformation rule adds -5 to each x-coordinate and 3 to each y-coordinate:

   (x, y) ⇒ (x -5, y +3)

Answer:

50 because,

Step-by-step explanation:

9n means 9 times 6. Which equals to 54, subtract 4 to get 50

Answer:

50

Step-by-step explanation:

If n = 6 the equation becomes 9(6)-4 or 9 x 6 - 4

9 x 6 = 54

54 - 4 = 50

Thus, the answer is 50

Answer:

Given that the equation of the revenue is R=2x2+55x+10 and the equation of the cost is C=2x2 – 15x – 40, you will get the profit by subtracting the revenue from the cost: R-C=P. Therefore, P=(2x2+55x+10)-(2x2 – 15x – 40). You will get P=70x+50 where x is is the number of cellphones sold. If 240 cellphones are sold, then the profit is 16850 dollars.

Step-by-step explanation:

The profit expression is 70x + 50 and the profit if 240 cell phones are sold is $16,850

where,

x = number of cell phones sold.

Profit = Revenue - cost

= (2x² + 55x + 10) - (2x² – 15x – 40)

= 2x² + 55x + 10 - 2x² + 15x + 40

Profit = 70x + 50

Profit = 70x + 50

= 70(240) + 50

= 16,800 + 50

= $16,850

Learn more about profit:

https://brainly.com/question/23103804

Answer:

ab = 6

a+b = 5

Step-by-step explanation:

Answer:

390 seniors

Step-by-step explanation:

13/20=.65

600x .65=390

Answer:

2.00 is your answer lol i think

Step-by-step explanation:

please mark as brainllest

Answer:

0.07704056

Step-by-step explanation:

Answer:

$20.40 after the discount

Step-by-step explanation:

To find 15% of 24, you multiply 24 and 0.15, which gets you 3.6

Then, to find the price after the discount, you subtract the 15% (the 3.6). So, 24 - 3.6 = $20.40

Answer:

X=5

Step-by-step explanation:

Answer:

60°

Step-by-step explanation:

<EAD is 180° as a whole

All that is needed is to subtract 100° and 20° from 180°

now you are left with x° which is 60° left over from the 180°

Answer:

Step-by-step explanation:

Triangle XYZ has been reflected across a line y = 1,

Therefore, line y = 1 will work like a mirror and all the distance of the points of the points from this line will be equal after the reflection about this line.

Distance of X from this line = 2 units

After reflection distance of X' from the line of reflection will be 2 units in opposite side.

Therefore, coordinates of X' will be (3, 3)

Answer:

x+x+65+25= 180( Angle Sum Property)

2x+90=180

2x=90

x=45

∠A= 45

∠B= 45+65= 110

Step-by-step explanation:

Answer:

It's 102

Step-by-step explanation:

in triangles they have to equal to 180

41+37=78

180-78=102

Answer:

No, it is not a right triangle.

Step-by-step explanation:

Using the property of the right triangle, square root (5^2 + 10^2) = 5root(5), and it is not equal to 15, so it is not a right triangle.

Step-by-step explanation:

I'll do 2.

Alright,Alex let say we have factored a quadratic into two binomial, for example

[tex](5x + 3)(6x - 4)[/tex]

If we set both of those equal to zero

[tex](5x + 3)(6x + 4) = 0[/tex]

We can used the zero product property in this case to find the roots of the quadratic equation.

This means that

[tex]if \: ab = 0 \: then \: a = 0 \: and \: b = 0[/tex]

This means we set each binomal equal to zero to find it root.

[tex]5x + 3 = 0[/tex]

[tex]5x = - 3[/tex]

[tex]x = - \frac{3}{5} [/tex]

[tex]6x + 4 = 0[/tex]

[tex]6x = - 4[/tex]

[tex]x = - \frac{2}{3} [/tex]

So our roots are negative 3/5 and negative 2/3 using zero product property

Step-by-step explanation:

1. Radius=3cm, diameter=6cm

Circumference=3.14×6cm=18.84cm

2. Radius=6in, diameter=12in

Circumference=3.14×12in=37.68in

3. Radius=9mm, diameter=18mm

Circumference=3.14×18mm=56.52mm

Answer: 7.5 miles per hour

Step-by-step explanation:

First speed was 3 miles per hour.

Second speed was 12 miles per hour.

To do an average, add both speeds and divide by two, which is the number of trips made.

= (3 + 12) / 2

= 15 / 2

= 7.5 miles per hour

Answer:

first, arrange the numbers then classify the number into two like if there are 7 numbers classify into three then the middle one will be the median

Answer: c

Step-by-step explanation:

The expression that best represents Oliver making 8 withdraws $25 should be considered as 8(-25).

Since the positive and negative numbers to show his withdraw which expression best represents Oliver making 8 withdraws $25

So here the withdrawn amount should be $25

And, the earning is $8

So here the expression be like 8(-25).

Learn more about expression here: https://brainly.com/question/24422266

Answer:

Option D!

Step-by-step explanation:

Answer:

your answer will be 4/25

Step-by-step explanation:

.....

[tex] \sf Q) \frac{2 {}^{2} }{ {5}^{2} } = {?} [/tex]

[tex] \sf \implies \frac{2 {}^{2} }{ {5}^{2} }[/tex]

[tex] \sf \implies \frac{4}{25}[/tex]is the required answer.

Answer:

45 pints

Step-by-step explanation:

Answer:

1. 6

2. $1.63

3. 4.6

4. 32

5. 34n = 306

6. 3/8

Step-by-step explanation:

Answer:

Question 1: 6

Question 2: $1.63

Question 3: 4.6

Question 4: y = 18

Question 5: 34n = 306

Question 6: 3 over 8

Brainliest Plz :)

Answer:

B. (4x+5)(16x2−20x+25)

Step-by-step explanation:

64x3+125

=(4x+5)(16x2−20x+25)

Answer:

A!

Step-by-step explanation:

10 cubic feets volume is equivalent to 25.85 inches.

Answer:

Option B

Step-by-step explanation:

Volume of a cube is:

[tex]A = s^3[/tex]

s - side length

All sides are the same length in a cube.

We are given the information that the total volume of the cube is 10 cubic feet.

[tex]10=s^3\\\\\sqrt[3]{10}=\sqrt[3]{s^3}\\\\\boxed{2.154435... = s}[/tex]

2.154435... ≈ 2.15

The approximate height of the cube is 2.15 inches.

Since the height of the shelf is 24 inches tall, the cube should be able to fit.

2.15 < 24

Option B should be the correct answer.

Hope this helps.

Answer:

The side length can be used to draw (0) unique triangles because the two side lengths (8 and 12) add together to a sum that is (less than) the third side length

Step-by-step explanation:

The number of different license plates that end with a 5 as the last digit is given as follows:

D. 17,576,000

The Fundamental Counting Theorem states that if there are n independent trials, each with [tex]n_1, n_2, \cdots, n_n[/tex] possible results, the total number of outcomes is calculated by the multiplication of the number of outcomes for each trial as presented as follows:

[tex]N = n_1 \times n_2 \times \cdots \times n_n[/tex]

For this problem, we have that the parameters are given as follows:

Hence the total number of combinations is given as follows:

N = 26³ x 10³

N = 17,576,000

More can be learned about the Fundamental Counting Theorem at https://brainly.com/question/15878751

#SPJ1

Answer:

the answer is B

Step-by-step explanation:

please makr brainliest

Answer:

y=3x+2

Step-by-step explanation:

slope= rise/run

rise=3  run=1 slope=3

y intercept is 2

y=3x+2

Answer:

y = 3x + 2

Step-by-step explanation:

(1, 5) and (2, 8)

Slope:

m=(y2-y1)/(x2-x1)

m=(8-5)/(2-1)

m=3/1

m=3

y - y1 = m(x - x1)

y - 5 = 3(x - 1)

y - 5 = 3x - 3

y = 3x + 2