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2 years ago

15

For the spinner below, assume that the pointer can never lie on a border line. Find the following probabilities. (Enter the prob

abilities as fractions.) (a) P(A) (b) P(B) (c) P(C)

1 answer:

vladimir1956 [14]2 years ago

5 0

You need to add a picture of the spinner

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The average depth of the ocean is about 3.8 km.width of 7600 km. calculate the ratio depth:width?

Gnoma [55]

A ratio is like a fraction, so since you are provided with the numbers its easy to put it into a ratio
depth is 3.8km
width is 7600km
ratio is 3.8:7600

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3 years ago

PLEASE I NEED TO TURN THIS IN TOMORROW I NEED HELP PLEASE HELP ME

mart [117]

Answer: $\sum_{n=1}^{5}4^n=1364$

Step-by-step explanation:

Since we have given that

$\sum_{n=1}^{5}4^n$

Now, we know the rule for summation , we'll apply this ,

$\sum_{n=1}^{5}4^n\\=4^1+4^2+4^3+4^4+4^5\\$

Now, it becomes geometric progression, so we us the formula for sum of terms in g.p. which is given by

$S_n=\frac{a(r^n-1)}{r-1}\\\\\text{where 'a' is the first term and 'r' is the common ratio}$

So, our equation becomes ,

$a=4 \\\\r=\frac{a_2}{a_1}=\frac{4^2}{4}=4\\\\S_5=\frac{4(4^5-1)}{4-1}\\\\S_5=1364$

Hence ,

$\sum_{n=1}^{5}4^n=1364$

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3 years ago

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A typist can type 4800 words per hour. How many words can she type in 1 minute?

Colt1911 [192]

Answer: 80

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So to know how many words can she type in 1 min, we do the math "4800 : 60"

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2 years ago

Tema [17]

Sphere to 1
cone to 7
cylinder to 5
<span>triangular prism to 4
</span><span>cube to 3
</span><span>rectangular pyramid to 6
</span><span>triangular pyramid to 2
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Area of a circle w a radio us 6

Charra [1.4K]

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3 years ago