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3 years ago

7

Find the mean 10.20.30.50

2 answers:

lorasvet [3.4K]3 years ago

4 0

Answer:

27.5 is your mean.

Step-by-step explanation:

To get this, add the figures together and divide by the number of terms.

Marianna [84]3 years ago

3 0

Answer:

The mean is 27.5.

Step-by-step explanation:

Mean: 10 + 20 +30 + 50 = 110/4 = 27.5

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Anyone know this? Ill give brainliest if right pls help ^^

Varvara68 [4.7K]

Answer:

Female=14 male=6

Step-by-step explanation:

Oof this toke long I understand it now, for yesterday you gotta do 6+6+6+6+6=30 this is the male and so you add 14 to 30=44, now comes the important part of solving this problem. For today you gotta add 4 men and 4 women so you do 6+6+6+6=24 now 14+14+14+14=56 and if you add 56+24=80 .

4 0

3 years ago

PLEASE ANSWER ASAP -

Reika [66]

Answer:

The answer is $80 / $60

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

147 is 35%of what number

pantera1 [17]

X - the number

$35\%x=147 \\
0.35x=147 \ \ |\hbox{divide both sides by 0.35} \\
x=420$

147 is 35% of 420.

4 0

3 years ago

Read 2 more answers

Find the vertex of a quadratic function written in standard form.

Virty [35]

Answer:

our vertex for f(x) = 3x² + 18x + 32 = (-3, 5 )

Step-by-step explanation:

let me write the standard form of a quadratic equation

$a {x}^{2} + bx + c$

Now let me rewrite the original equation

$3 {x}^{2} + 18x + 32$

Now we use this simple formula to find the vertex (h, k)

$x = h = - \frac{b}{2a} \\ = - \frac{18}{2(3)} = - \frac{18}{6} = - 3 \\ h = - 3$

substitute -3 for x back into our original equation to solve for y our k value of our vertex

$y = 3 ({ - 3})^{2} + 18( - 3) + 32 \\ = 3(9) - 54 + 32 \\ = 27 + 32 - 54 \\ = 59 - 54 \\ k = 5$

our vertex for f(x) = 3x² + 18x + 32 = (-3, 5 )

3 0

2 years ago

Arrivals at a fast-food restaurant follow a Poisson distribution with a mean arrival rate of 16 customers per hour. What is the

Grace [21]

Answer: d. 0.0213

Step-by-step explanation:

Given : Mean arrival rate $\lambda$ = 16 customers per hour.

The Poisson distribution formula is given by :-

$P(X=x)=\dfrac{\lambda^x e^{-\lambda}}{x!}$ ,where $\lambda$ is the mean of the distribution.

If X = the number of customers arrivals , then the probability that in the next hour there will be exactly 9 arrivals will be :-

$P(X=9)=\dfrac{(16)^9 e^{-16}}{9!}\\\\\text{Simplify}\\\\=0.0213110623928\approx0.0213$

Hence, the probability that in the next hour there will be exactly 9 arrivals= 0.0213

Therefore , the correct answer is option (d.).

6 0

2 years ago