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yarga [219]
3 years ago
8

Help with numbers 1/6 please

Mathematics
1 answer:
Maslowich3 years ago
7 0

Answer:

1. A=56.25

Step-by-step explanation:

sry but i dont know the answer to six

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The heights of American men are normally distributed. If a random sample of American men is taken and the confidence interval is
solmaris [256]

Answer:

<h2>69.5</h2>

Step-by-step explanation:

Given the confidence interval of the heights of american heights given as (65.3,73.7);

Lower confidence interval L = 65.3 and Upper confidence interval U = 73.7

Sample mean will be the average of both confidence interval . This is expressed mathematically as \overline x = \frac{L+U}{2}

\overline x = \frac{65.3+73.7}{2}\\\overline x = \frac{139}{2}\\\overline x = 69.5

Hence, the sample mean is 69.5

7 0
3 years ago
Nita gana $ 20 por semana paseando al perro de su vecino. También gana $ 2 por cada rosa que vende de su jardín de rosas. Nita q
Rudik [331]

Answer:

La situación está representada por el siguiente sistema:

y = 20+2\cdot x

y \ge 50

Donde:

x - Cantidad de rosas vendidas semanalmente.

y - Ganancia semanal, medida en dólares.

Step-by-step explanation:

De acuerdo con el enunciado, Nita gana una cantidad fija cada semana por pasear al perro de su vecino, con un monto de $ 20, mientras que gana en función de la cantidad de rosas a vender, con un valor unitario de $ 2. Si ella desea ganar al menos $ 50, por tanto, se requiere construir el siguiente sistema, conformado por una ecuación y una inecuación:

y = 20+2\cdot x (1)

y \ge 50 (2)

Donde:

x - Cantidad de rosas vendidas semanalmente.

y - Ganancia semanal, medida en dólares.

4 0
3 years ago
There are two numbers whose sum is 496 . One number is thrice the other . what are the numbers?
alexdok [17]
X + 3x = 496
x = 496/4
X = 124

Another Number equal to 496-124 equal to 372
5 0
3 years ago
What is the volume of a right circular cylinder with a radius of 3 in. And a height of 10 in. ? 30π in³ 60π in³ 90π in³ 120π in³
Delvig [45]

Answer:

V = 90π in³

Step-by-step explanation:

Volume of cilinder

=Area of cicle that is the base * height of cylinder

V = π·r²·h

V = π·3²·10

V = π·9·10

V = π·90 in³

8 0
3 years ago
PLEASE ANSWER ASAP! I posted this like 2 times already... A farmer wants to fence in a section of land for a horse pasture. Fenc
noname [10]
Ok so to start you need to add the all of the leangth to gether to get 1323 ft. the you convert that to yards (441 yards) then you multiply 441 yard by 31 and you get your answer ($13671)
                        i hope that this helps

5 0
4 years ago
Read 2 more answers
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