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Dmitry [639]
3 years ago
15

Help me please please!!!!!!!!

Mathematics
2 answers:
kakasveta [241]3 years ago
8 0

Answer:

Im not sure but i believe it is A. 5

Step-by-step explanation:

Hope this helps please mark brainlist if im right.

andrey2020 [161]3 years ago
6 0

Answer:

B) A = 25π

Step-by-step explanation:

The area of a circle is calculated with the formula \pi * r^2

The radius is half of the diameter, which in this case is 10.

Plugging it in, you get 5^2\pi

5^2 = 25\\

A = 25\pi

You might be interested in
How many meters are in 20 yards ?
Dafna1 [17]

Answer:

18.288

Step-by-step explanation:

4 0
3 years ago
con 16 barras de mantequilla se prepararon 20 postres ?que fraccion del total de mantequilla corresponde a cada postre
MatroZZZ [7]

De ahí que la fracción de la mantequilla total que corresponde a cada postre sea 1/4

Si con 16 barras de mantequilla se prepararon 20 postres, esto se puede expresar como:

16 pegatinas = 20 postres

Para obtener la fracción del total de mantequilla que corresponde a cada postre, podemos escribir;

x = 1 postre

Divide ambas expresiones

16 / x = 20/1

20 veces = 16 * 1

20x = 16

x = 16/20

x = 4/5

De ahí que la fracción de la mantequilla total que corresponde a cada postre sea 1/4

Obtenga más información aquí: brainly.com/question/1878884

5 0
2 years ago
A food company sells salmon to various customers. The mean weight of the salmon is 37 lb with a standard deviation of 2 lbs. The
brilliants [131]

Answer:

The standard deviation for the mean weigth of Salmon is 2/3 lbs for restaurants, 2/7 lbs for grocery stores and 1/4 lbs for discount order stores.

Step-by-step explanation:

The mean sample of the sum of n random variables is

\overline{X} = \frac{X_1+X_2+...+X_n}{n}

If X_1, ..., X_n are indentically distributed and independent, like in the situation of the problem, then the variance of X_1 + .... + X_n will be the sum of the variances, in other words, it will be n times the variance of X_1 .

However if we multiply this mean by 1/n (in other words, divide by n), then we have to divide the variance by 1/n², thus \overkine{X} = \frac{V(X_1)}{n} and as a result, the standard deviation of \overline{X} is the standard deviation of X_1 divided by \sqrt{n} .

Since the standard deviation of the weigth of a Salmon is 2 lbs, then the standard deviations for the mean weigth will be:

  • Restaurants: We have boxes with 9 salmon each, so it will be \frac{2}{\sqrt{9}} = \frac{2}{3}
  • Grocery stores: Each carton has 49 salmon, thus the standard deviation is \frac{2}{\sqrt{49}} = \frac{2}{7}
  • Discount outlet stores: Each pallet has 64 salmon, as a result, the standard deviation is \frac{2}{\sqrt{64}} = \frac{1}{4}

We conclude that de standard deivation of the mean weigth of salmon of the types of shipment given is: 2/3 lbs for restaurants, 2/7 lbs for grocery stores and 1/4 lbs for discount outlet stores.

7 0
3 years ago
PLS HELP I WILL DO ANYTHING
Lunna [17]

Answer:

the solution for x is x=40

4 0
3 years ago
Need Help ASAP!! 100 points andbranliest plz pleople plz help.
mafiozo [28]

Answer:

what grade are you in so then I could get the answer

4 0
3 years ago
Read 2 more answers
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