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2 years ago

Serena bought 3/4 of a kilogram of nuts. she delivered them evenly among 4 containers.

Mathematics

1 answer:

Marrrta [24]2 years ago

8 0

Answer:

Step-by-step explanation:

0.75kg/4c

0.1875kg/c

So there are 0.1875kg per container

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Given the function fx=x^2-4x-5 identify the zeros using factorization

Mnenie [13.5K]

Answer:

x = 5,-1

Step-by-step explanation:

(x-5)(x+1)

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2 years ago

Suppose that, after measuring the duration of many telephone calls, a telephone company found their data was well-approximated b

Musya8 [376]

Answer:

a) 7.79%

b) 67.03%

c) Cumulative Distribution Function

$P(t) = \displaystyle\int^{\infty}_{-\infty} 0.1e^{-0.1t}~dt\\\\= \displaystyle\int^{b}_{a} 0.1e^{-0.1t}~dt, ~~a\leq t \leq b$

Step-by-step explanation:

We are given the following in the question:

$p(x) = 0.1 e^{-0.1x}$

where x is the duration of a call, in minutes.

a) P( calls last between 2 and 3 minutes)

$=\displaystyle\int^3_2 p(x)~ dx\\\\= \displaystyle\int^3_20.1e^{-0.1x}~dx\\\\=\Big[-e^{-0.1x}\Big]^3_2\\\\=-\Big[e^{-0.3}-e^{-0.2}\Big]\\\\= 0.0779\\=7.79\%$

b) P(calls last 4 minutes or more)

$=\displaystyle\int^{\infty}_4 p(x)~ dx\\\\= \displaystyle\int^{\infty}_40.1e^{-0.1x}~dx\\\\=\Big[-e^{-0.1x}\Big]^{\infty}_4\\\\=-\Big[e^{\infty}-e^{-0.4}\Big]\\\\=-(0- 0.6703)\\= 0.6703\\=67.03\%$

c) cumulative distribution function

$P(t) = \displaystyle\int^{\infty}_{-\infty} 0.1e^{-0.1t}~dt\\\\= \displaystyle\int^{b}_{a} 0.1e^{-0.1t}~dt, ~~a\leq t \leq b$

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3 years ago

1. Mr. Morrison has decided that an angle of 15° is

Rasek [7]

Answer:

the height of the front doorstep is 12 cm

angle given is 15 degree

so, the length of the ramp wooden peice should be 44.7

mark me brainliest plsss

plssss

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3 years ago

Which of the following possibilities will form a triangle?

ivann1987 [24]

Answer:

Option 4

Step-by-step explanation:

The smaller sides must add up to be greater than the largest side so:

1) 6 + 8 < 15

1) No

2) 6 + 9 = 15

2) No

3) 9 + 6 < 16

3) No

4) 9 + 8 > 16

4) Yes

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2 years ago

What is the radius and diameter of a circle 4.2 cm

Tema [17]

R=2.1
Diameter would be half of that

3 0

2 years ago