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3 years ago

I need help please

Mathematics

2 answers:

Pani-rosa [81]3 years ago

8 0

A. 260 units2. That’s the answer

frutty [35]3 years ago

3 0

260 units2 is the answer

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maks197457 [2]

1. (0, -5)
2. (4, -5)
3. (-5, 0)

3 0

2 years ago

Read 2 more answers

Can someone help with this

Alina [70]

Answer:

∠6 = 80°

Step-by-step explanation:

∠5 and ∠6 form a straight angle and are supplementary, hence

∠5 + ∠6 = 180 ← ∠5 = 100° ( given ), hence

100 + ∠6 = 180 ( subtract 100 from both sides )

∠6 = 80°

8 0

3 years ago

(1 pt) A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.4 cm/min. At what rate is the

mrs_skeptik [129]

Answer:

Rate at which volume of the snowball decreasing = 90.48 cm³/min

Step-by-step explanation:

$\texttt{Volume of sphere, V =}\frac{4}{3}\pi r^3=\frac{4}{3}\pi \left (\frac{D}{2} \right )^3=\frac{1}{6}\pi D^3$

Differentiating with respect to time,

$\frac{dV}{dt}=\frac{d}{dt}\left (\frac{1}{6}\pi D^3 \right )=\frac{1}{6}\pi \times 3D^2\frac{dD}{dt}\\\\\frac{dV}{dt}=\frac{1}{2}\pi D^2\frac{dD}{dt}$

Substituting

D = 12 cm and rate of change of diameter = 0.4 cm/min.

$\frac{dV}{dt}=\frac{1}{2}\pi D^2\frac{dD}{dt}\\\\\frac{dV}{dt}=\frac{1}{2}\pi \times 12^2\times 0.4=90.48cm^3/min$

Rate at which volume of the snowball decreasing = 90.48 cm³/min

3 0

3 years ago

What is bigger 2/8 or 7/8

Vedmedyk [2.9K]

7/8 would be greater because first, lets see if they have same denominators. Yes, they do! So is 2 or 7 greater? Obviously, 7 is greater. So 7/8 is greater than 2/8.

OR

2/8 < 7/8

5 0

3 years ago

Read 2 more answers

Help please asap.. I don’t understand..

My name is Ann [436]

Answer:

5.5

Step-by-step explanation:

4 0

3 years ago

I need help please ​

I need help please