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Gnoma [55]
3 years ago
6

HELP I NEED HELP ASAP

Mathematics
2 answers:
Gennadij [26K]3 years ago
8 0

Answer:

The answer to your question would be...

D. $8.15

Shtirlitz [24]3 years ago
4 0

Answer:

D. 8.15

Step-by-step explanation:

8.25 times 10 = 82.5

82.5-6.5=76

76+5.5=81.5

81.5/10=8.15

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A drawer contains 6 black neckties, 2 white neckties,4 red neckties,2 maroon neckties and 2 blue neckties. One necktie is picked
kogti [31]

A) The probability of picking a white tie 300 times = (\frac{1}{8}) ^{300}

B)  The probability of picking a blue tie 300 times = (\frac{1}{8}) ^{300}

C) The probability of picking a red tie 300 times = (\frac{1}{4}) ^{300}

D) the probability of picking a black tie 300 times = (\frac{3}{8}) ^{300}

E ) the probability of picking a maroon tie 300 times = (\frac{1}{8}) ^{300}

F) the probability of NOT picking a white tie 300 times = (\frac{7}{8}) ^{300}

Step-by-step explanation:

Here, the total number of black neckties  = 6

The total number of white neckties  = 2

The total number of red neckties  = 4

The total number of maroon neckties  = 2

The total number of blue neckties  = 2

The number of times the experiment is repeated = 300

A )  P(Picking a white tie)  = \frac{\textrm{Total number of white ties}}{\textrm{Total Bow ties}}

= \frac{2}{16}  = \frac{1}{8}

So, the probability of picking a white ONCE is 1/8.

Now, as the experiment is REPEATED 300 times with replacement.

So, the probability of picking a white tie 300 times = (\frac{1}{8}) ^{300}

B) P(Picking a BLUE  tie)  = \frac{\textrm{Total number of blue ties}}{\textrm{Total Bow ties}} = \frac{2}{16}  = \frac{1}{8}

So, the probability of picking a blue ONCE is 1/8.

Hence, the probability of picking a blue tie 300 times = (\frac{1}{8}) ^{300}

C) P(Picking a Red  tie)  = \frac{\textrm{Total number of Red ties}}{\textrm{Total Bow ties}} = \frac{4}{16}  = \frac{1}{4}

So, the probability of picking a red ONCE is 1/4.

Hence, the probability of picking a red tie 300 times = (\frac{1}{4}) ^{300}

D) P(Picking a Black  tie)  = \frac{\textrm{Total number of black ties}}{\textrm{Total Bow ties}} = \frac{6}{16}  = \frac{3}{8}

So, the probability of picking a red ONCE is 3/8.

Hence, the probability of picking a black tie 300 times = (\frac{3}{8}) ^{300}

E) P(Picking a maroon  tie)  = \frac{\textrm{Total number of maroon ties}}{\textrm{Total Bow ties}} = \frac{2}{16}  = \frac{1}{8}

So, the probability of picking a maroon ONCE is 1/8.

Hence, the probability of picking a maroon tie 300 times = (\frac{1}{8}) ^{300}

F) P(Picking a NOT whiten  tie)  = 1 - P( picking a white tie)

= 1-(\frac{1}{8} ) = \frac{8-1}{8}  = (\frac{7}{8} )

So, the probability of NOT  picking a white ONCE is 7/8.

Hence, the probability of NOT picking a white tie 300 times = (\frac{7}{8}) ^{300}

4 0
3 years ago
What are the name of these angles? Are<br> they congruent or supplementary?
kumpel [21]
They are supplementary
4 0
3 years ago
the base of a right prism is an equilateral triangle each of whose sides measures 4cm.the altitude of the prism measures 5cm.Fin
o-na [289]

Answer:

V=34.64\ cm^3

Step-by-step explanation:

Given that,

The side of an equilateral prism = 4 cm

The altitude of the prism = 5 cm

We need to find the volume of the prism. The formula for the volume of a prism is as follows :

V=A\times h

Where

A is the area of equilateral triangle, A=\dfrac{\sqrt3}{4}a^2

So,

V=\dfrac{\sqrt3}{4}a^2\times h\\\\V=\dfrac{\sqrt3}{4}\times 4^2\times 5\\\\V=34.64\ cm^3

So, the volume of the prism is equal to 34.64\ cm^3.

6 0
3 years ago
which expression can be used to find the temperature, in degrees F, at noon that day in Helena, Montana?
garri49 [273]

Answer:

<h3>-12 + 25 </h3>

As it is given in the question that 12° F is below zero is it is taken as minus and 25 °F is risen so it is taken as positive

7 0
3 years ago
Rachel can buy 18 eggs for $1.49 or 12 eggs for $1.09. Which is the better buy?
Mnenie [13.5K]
<span>  1.09/12=0.091  18 eggs is a better buy</span>
3 0
4 years ago
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