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3 years ago

10

Ten balls numbered 1 to 10 are placed in a basket. if one ball is selected at random, find the probability that the number is 5

or 7.

1 answer:

N76 [4]3 years ago

4 0

The answer is 1/5 or 20% chance that it would be 5 or 7.

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In a right triangle the acute angles measure 2x 50 and 3x degrees. what is the measure of the smallest angle of the triangle? 10

damaskus [11]

2x + 3x = 90
5x = 90
x = 18
smallest angle = 36

6 0

4 years ago

Which ratio is equivalent to? 4:5

Inessa05 [86]

Answer:16:20

Step-by-step explanation:

3 0

3 years ago

PRECALC QUESTION! Convert the polar representation of this complex number into its standard form: z = 2(cos 11pi/6+ i sin 11pi/6

Tanzania [10]

$\bf z=2\left[ cos\left( \frac{11\pi }{6} \right) + i\ sin\left( \frac{11\pi }{6} \right) \right]\qquad 
\begin{cases}
r=2\\
\theta=\frac{11\pi }{6}\\
-----\\
a=x=rcos(\theta)\\
b=y=rsin(\theta)
\end{cases}\implies a+bi
\\\\\\
2cos\left( \frac{11\pi }{6} \right)+2sin\left( \frac{11\pi }{6} \right)\ i\implies 2\cdot \cfrac{\sqrt{3}}{2}+2\cdot \cfrac{-1}{2}\ i\implies \sqrt{3}-1i
\\\\\\
\boxed{\sqrt{3}-i}$

7 0

3 years ago

Read 2 more answers

Can someone help me with this i got the question wrong the first time so its not 7.50

Sedaia [141]

Answer: $7.6502

Step-by-step explanation:

Grape cost $1.19 per pound. 3.16 pounds are bought. The total amount paid for grape will be:

= $1.19 × 3.16

= $3.7604

Peaches cost $1.29 per pound. 1.35 pounds are bought. The total amount paid for peaches will be:

= $1.29 × 1.35

= $1.7415

Peers cost $0.99 per pound. 2.17 pounds are bought. The total amount paid for pears will be:

= $0.99 × 2.17

= $2.1483

Total bill paid will be:

= $3.7604 + $1.7415 + $2.1483

= $7.6502

4 0

3 years ago

What is a recursive formula for this geometric sequence ?

dybincka [34]

Hello.

Given the explicit rule, $a_{n} = 9$ ×<span> </span> $-(\frac{1}{3}) ^{(n-1)}$ , $a_{1} = 9,$ and r = $- \frac{1}{3}$ ,

Your recursive rule is C.

4 0

4 years ago