All categories

2 years ago

Find The Perimeter Of The Semicircular Tabletop Shown At The Right: 2ft (i will give brainliest ^^)

1 answer:

4 0

the answer is 11/7 feet because the perimeter of a circle is πr² and a semi circle is half of a circle then the formula would be 1/2 πr² 1/2×22/7×1 (it is 1 because we have divided the diameter to get radius so we derived at 11/7.

You might be interested in

During the day the temperature was -3 Fahrenheit at night the temperature dropped 19 Fahrenheit what was the temperature at nigh

CaHeK987 [17]

Answer:

Step-by-step explanation:

during the day, it was -3.....at night it dropped 19 degrees...

so at night it is : (-3 - 19) = - 22 degrees Fahrenheit

8 0

3 years ago

How many subsets can be made from a set of six elements, including the null set and the set itself?

BlackZzzverrR [31]

Answer:

B) 64

Step-by-step explanation:

4 0

3 years ago

Car X weighs 136 pounds more than car Z. Car Y weighs 117 pounds more than car Z. The total weight of all three cars is 9439 pou

Aleksandr [31]

Let x, y and z denote the weighs of car X, car Y and car Z, respectively.

We know that car X weighs 136 more than car Z, this can be express by the equation:

$x=z+136$

We also know that Y weighs 117 pounds more than car Z, this can be express as:

$y=z+117$

Finally, we know that the total weight of all the cars is 9439, then we have:

$x+y+z=9439$

Hence, we have the system of the equations:

$\begin{gathered} x=z+136 \\ y=z+117 \\ z+y+z=9439 \end{gathered}$

To solve the system we can plug the values of x and y, given in the first two equations, in the last equation; then we have:

$\begin{gathered} z+136+z+117+z=9439 \\ 3z=9439-136-117 \\ 3z=9186 \\ z=\frac{9186}{3} \\ z=3062 \end{gathered}$

Now that we have the value of z we plug it in the first two equations to find x and y:

$\begin{gathered} x=3062+136=3198 \\ y=3062+117=3179 \end{gathered}$

Therefore, car X weighs 3198 pound, car Y weighs 3179 pounds and car Z weighs 3062 pounds.

4 0

1 year ago

UHHHHH IM GONNA FAIL MATH YALL<br><br> Just answer it ig-?<br> I WILL MARK AS BRAINLIEST

tankabanditka [31]

Answer:

30.96 m^2

Step-by-step explanation:

Side length of the square is also the diameter of the semicircle so:

r = 0.5 * 12 m = 6 m

Since you want the area of the shaded area, you have to subtract the area of both semi circles from the area of the square:

Square Area - Semi Circle Area - Semi Circle Area = Shaded Region Area

(12 m * 12 m) - (0.5 * 3.14 * 6^2 m) - (0.5 * 3.14 * 6^2 m)

= 144 - 56.52 - 56.52

= 30.96 m^2

7 0

3 years ago

If 20 out of 25 students in a P.E. class are boys, what percent of the class is made up of boys?

Ivanshal [37]

80% !
hope this helps

4 0

3 years ago