3 years ago

HELP PLEASE!!! the minimum fluoride is 3 and maximum is 10

Mathematics

1 answer:

12345 [234]3 years ago

4 0

I believe that B is the answer
(3.5)

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What operation is being done to the variable in the equation -5m = -40?

Jlenok [28]

Answer:

it's being divided by -5

Step-by-step explanation:

-5m= -40

m=8

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3 years ago

The prices of three t-shirts styles are $24, $30 and $36. the probability of choosing a $24 t-shirt is 1/6. the probability of c

Slav-nsk [51]

$\text{Answer} : \text{The expected value of a t-shirt is \$31.}$

Explanation:

Since we have given that

The prices of three t-shirts styles i.e $24, $30, $36 with their probability is given by

$\frac{1}{6}, \frac{1}{2},\frac{1}{3}$

As we know that,

$E(X)= \sum_{1}^{3}x_iP(x_i)$

$\text{where} x_i \text{ is the prices of t- shirts styles}$

Now,

$x_1= \$24 , x_2=\$30 , x_3=$36$

and

$P(x_1)=\frac{1}{6},P(x_2)=\frac{1}{2}, P(x_3)=\frac{1}{3}$

So,

$E(X)= 24\times \frac{1}{6}+30\times\frac{1}{2}+36\times \frac{1}{3}\\=4+15+12\\=31$

So, the expected value of a t-shirt = $31.

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4 years ago

What is the length of this rectangle?

solong [7]

Answer:

long

Step-by-step explanation:

well, as you can clearly see this is certainly not a short rectangle. maybe a little stocky, but certainly not short. also, I'm not very good at math, so dont ask me.

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3 years ago

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Solve for a<br><br> a² + 7a - 8 = 0

masya89 [10]

Answer:

a=-8

Step-by-step explanation:

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3 years ago

Standard six-sided dice have their dots arranged so that the opposite faces add up to 7.

ankoles [38]

Answer: 153

Step-by-step explanation:

The maximum number of dots that can be seen from one position is 153 dots.

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2 years ago

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