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3 years ago

7

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

2 answers:

Tanya [424]3 years ago

7 0

Answer:

I believe it would be 1570.

Step-by-step explanation:

The formula to find the volume of a cylinder is:

V = pi • r² • h

The diameter is usually 2x the radius:

20m ÷ 2 = 10

The radius would be 10m.

3.14 • 10² • 5 = 1570 cubic m

ELEN [110]3 years ago

3 0

Answer:

$Volume~of~cylinder=\pi r^2h$

$\pi *(10)^2*5$

$500\pi$

$1570.8~m^3$

<u>-------------------------</u>

<u>hope it helps..</u>

<u>have a great day!!</u>

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The area of parallelogram WXYZ is approximately 45 square units.

neonofarm [45]

Answer:

Option (4)

Step-by-step explanation:

Area of a triangle = $\frac{1}{2} (a.b.\text{Sin}\theta)$

Where a and b are the sides of a triangle and θ is the angle between the sides a and b.

By this rule,

Area of ΔWZY = $\frac{1}{2}(\text{WZ}).(\text{YZ}).\text{Sin}(115)$

45 = $\frac{1}{2}(\text{YZ}).(10).\text{Sin}(115)$

9 = (YZ).Sin(115)°

YZ = $\frac{9}{\text{Sin}(115)}$

YZ = 9.93

Perimeter of parallelogram WXYZ = WX + XY + YZ + WZ

= 9.93 + 10 + 9.93 + 10

= 39.86

≈ 40 units

Therefore, perimeter of the parallelogram is 40 units.

Option (4) is the answer.

4 0

3 years ago

A man is trying to fit a washing machine into a corner of a four-sided room. He knows that all the walls are perfectly straight,

coldgirl [10]

I believe that it is just a square room, either that or he isn’t good at measuring

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3 years ago

Josh's chicken soup recipe calls for 2 1 / 2 L of chicken stock. Josh makes 3 1 / 4 times the recipe for a family reunion. How m

Nataly_w [17]

Required amount of chicken stock = $2\frac{1}{2}$ = $\frac{5}{2}$ L

Total amount of extra recipe made = $3\frac{1}{4}=\frac{13}{4}$ L

Total amount of chicken made is = $\frac{13}{4} * \frac{5}{2}= \frac{65}{8}$ L

Hence Josh made total $\frac{65}{8}$ L of chicken soup.

Converting it to mixed fraction we get,

$8\frac{1}{8}$ L

5 0

3 years ago

Please answer I will mark branlest if you are right and I won't you all to be safe

erastova [34]

Answer:

3. x=21

4. x=28

5. x=35

Step-by-step explanation:

I did ths step by step on my whiteboard and I know my answers are right. Sorry if that sounds cocky.

Can I get brainliest?

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3 years ago

grandymaker [24]

Answer:

$\frac{x^{2}}{144}+\frac{y^{2}}{79.995}=1$

Step-by-step explanation:

An ellipse centered a point (h,k) has the following formula:

$\frac{(x-h)^{2}}{a^{2}}+\frac{(y-k)^{2}}{b^{2}}=1$

The distance between foci is:

$2\cdot c = \sqrt{[8-(-8)]^{2}+(0-0)^{2}}$

$2\cdot c = 16$

$c = 8$

The center of the ellipse is:

$C(x,y) = (-8 + 8, 0 + 0)$

$C(x,y) = (0,0)$

The known vertex is on the horizontal axis of the ellipse. Then, the length of the semi-major axis is:

$a = \sqrt{(12-0)^{2}+(0-0)^{2}}$

$a= 12$

The length of the semi-minor axis is given by the following expression:

$c =\sqrt{a^{2}-b^{2}}$

$b = \sqrt{a^{2}-c^{2}}$

$b = \sqrt{12^{2}-8^{2}}$

$b \approx 8.944$

The equation of the ellipse is:

$\frac{x^{2}}{144}+\frac{y^{2}}{79.995}=1$

5 0

3 years ago