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cricket20 [7]
2 years ago
7

The diameter of a circle is 28 inches. Find the circumference and area. Use 22/7 for pi. What is area and circumference?

Mathematics
1 answer:
mars1129 [50]2 years ago
6 0
The answer is about 175.93
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andrezito [222]
The answer is 38, because if you take away the 15 he bought afterwards (34-15) you get 19, and then since he sold half his collection you would double that (19×2) and that's 38.
4 0
3 years ago
A doctor prescribes 150 milligrams of a therapeutic drug that decays by about 15% each hour. To the nearest hour, what is the ha
Nikolay [14]

Answer:

4 hours

Step-by-step explanation:

The amount remaining at the end of each hour is 0.85 of the amount at the start of the hour. You want to find the exponent such that ...

... 0.85^x = 0.5 . . . . . x = the number of hours until half is left

... x·log(0.85) = log(0.5) . . . . . take the log to turn it to a linear equation

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3 0
2 years ago
I can define continuous data as:
stira [4]

Answer:

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5 0
3 years ago
Expand -8 to the 3rd power
BigorU [14]
Use a calculator lollll
8 0
3 years ago
Find two unit vectors orthogonal to a=⟨2,−2,−3⟩a=⟨2,−2,−3⟩ and b=⟨3,2,2⟩b=⟨3,2,2⟩ enter your answer so that the first non-zero c
Ronch [10]
We need the cross product of the two vectors.
a x b
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=
i    j   k
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The second vector is obtained by reversing the direction, namely <-2,13,-10>
Thus the two vectors are <2,-13,10> and <-2,13,-10>.
8 0
3 years ago
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