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3 years ago

Help pls due by 12 :/

Mathematics

1 answer:

inn [45]3 years ago

3 0

Answer:

Its 4/5

Step-by-step explanation:

because you start on the first doit then go up4 then go across 5 to another dot

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Jon has y stickers. He uses 20 stickers and divided the remainder equally between his two sisters. find the number of stickers e

ale4655 [162]

Jon has y stickers and uses 20
jon=y-20
the sisters share y-20 between 2 of them
therefore each sister receives

(y-20) divided by 2 -- (y-20)/2

6 0

3 years ago

Plutonium -25 has a half live of 6 hours . George has 5000 grams of plutonium -25 . How much plutonium-25 will hearse have after

mart [117]

The amount (a) after d days will be
.. a(d) = 5000*(1/2)^(4d)

.. a(4) = 5000*(1/2)^(4*4) = 5000/2^16 ≈ 0.076 . . . grams

George will have about 0.076 grams after 4 days.

8 0

3 years ago

10 meters = ______________ feet

Leni [432]

Answer:

brainliest?

Step-by-step explanation:

10meters=32,8084 feet

16gallons= 60566592 mm³

5 0

3 years ago

The claim is that the white blood cell counts of adult females are normally? distributed, with a standard deviation equal to 1.6

antiseptic1488 [7]

From the question, we know the population standard deviation, σ = 1.63, the sample standard deviation, s = 3.07, the sample mean, $\bar{x}=7.43$ and the sample size, n = 38.

The question illustrates a hypothesis chi-square test of variance.

The test statistics for a Chi-squared test of variance is given by
$T=(n-1)\left( \frac{s}{\sigma} \right)^2 \\ \\ =(38-1)\left( \frac{3.07}{1.63} \right)^2 \\ \\ =37(1.883)^2=37(3.5473) \\ \\ =131.25$

7 0

3 years ago

Since we talked about a Man on the Street survey in class today, you decided to do one yourself! You estimate that there is a 0.

a_sh-v [17]

Answer:

Therefore, we conclude that the probability is P=0.3456.

Step-by-step explanation:

We know that there is a 0.60 probability that a random student at UMSL has watched Game of Gnomes. We calaculate the probability that 3 of 4 students watched Game of Gnomes.

$p=0.6\\q=1-0.6=0.4\\$

Therefore, we get:

$P=C_3^4\cdot 0.6^3 \cdot 0.4^1\\\\P=4\cdot 0.6^3 \cdot 0.4\\\\P=0.3456$

Therefore, we conclude that the probability is P=0.3456.

8 0

3 years ago