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VashaNatasha [74]
4 years ago
14

Please help me!!!!!!!!!!

Mathematics
2 answers:
stich3 [128]4 years ago
5 0
A is an inscribed angle so it is half the arc intercepted by a so a=100/2=50. Hope that helped you!!!!!!
PolarNik [594]4 years ago
4 0
Just divide the arc the inscribe angle forms by 2.  So 100/2 = 50 = a, and b is 55.
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Alecia builds a box in the shape of a cube with an open top. She plans to paint the box. Alecia calculates that there are 256 sq
STALIN [3.7K]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as the options to select the required condition from were not listed. So, I will answer on general terms

From the question, we understand that the cube has an open-top and the surface ares is 256 in^2

Let L represents the edge length, the surface area (S) is:

S = 5L^2

Substitute 256 for S

256 = 5L^2

Divide both sides by 5

51.2 = L^2

Take square roots of both sides:

\sqrt{51.2} = L

7.155= L

L=7.16in ---- approximated

The volume of the cube is:

Volume = L^3

Volume = \sqrt{51.2}^3

Volume = 366.3573

Volume = 366.36in^3

<em>So, the edge length of the cube is 7.16 inches and the volume is 366.36 cubic inches</em>

<em />

6 0
3 years ago
Read 2 more answers
Can someone give me the answer and help explain this
fredd [130]

Answer:

y=-1

Step-by-step explanation:

do one half of 30 which is 15 (basically 0.5 multiplied by 30 but easier)

you plug in the 15

do 14-15

since there are not enough positive numbers to solve it becomes -1

7 0
3 years ago
Read 2 more answers
Sam has three identical tennis balls with a diameter of 2.7 inches. Determine the volume of all three tennis balls?
melamori03 [73]

Answer:

They are 30.93 in³ altogether.

Step-by-step explanation: V = 4/3 π r³

r = 2.7/2 = 1.35

π x 1.35 x 1.35 x 4/3 = 10.31 in³

10.31 x 3 = 30.93

3 0
3 years ago
Timothy is 13 5/6 years old. Camden is 1 1/3 years younger than Timothy and Jane is 1 1/4 years younger than Camden. How old is
galina1969 [7]

Answer:

Jane is 11 1/4 years old.

Step-by-step explanation:

Subtract all of the numbers given.

13\frac{5}{6} -1\frac{1}{3} -1\frac{1}{4}.

To subtract this, we need to find a common denominator.

A common denominator in this situation is 12. To do this multiply the 5 and the 6 of 5/6 by 2. Multiply the 1 and the 3 of 1/3 by 4. And multiply the 1 and the 4 1/4 by 3.

The new expression will look like this:

13\frac{10}{12} -1\frac{4}{12} -1\frac{3}{12}.

Now we can subtract.

13\frac{10}{12} -1\frac{4}{12} -1\frac{3}{12}=11\frac{3}{12}

Reduce the answer.

11\frac{3}{12}=11\frac{1}{4}

In decimal form 11.25

Hope this helps!

If not, I am sorry.

5 0
2 years ago
A penny is dropped from the top of a 1,000-foot building. the function gives the height of the penny t seconds after it starts f
zzz [600]
We consider an approximation of the gravity g=10. 
Then the speed is given by the formula: s(t)=10t.
And the coordinate is given by the formula:x(t)=5t^2+t
(integrating the speed function).
Now set up the equation:
5t^2+t=1000
Solving the above equation for t we get:t =14 seconds. 
<span>It will take 14 seconds for the penny to reach the ground.</span>
8 0
3 years ago
Read 2 more answers
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