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3 years ago

How do you solve polynomials?

Mathematics

1 answer:

zhenek [66]3 years ago

4 0

Answer:

Factoring or Quadratic Formula

Step-by-step explanation:

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Jimmy ate 3/4 of a pizza. He let his brother eat 1/3 of his leftovers. How much of the entire pizza did Jimmy's brother eat?

e-lub [12.9K]

Answer:

1/4

Step-by-step explanation:

6 0

3 years ago

Please help ! thank you

tankabanditka [31]

That would be

$\dfrac{.24}{.54} = .444...$

Answer: B

6 0

3 years ago

Please answer this correctly without making mistakes I want ace expert and genius people to answer this correctly without making

ivanzaharov [21]

Answer:

(9³×m)3

Step-by-step explanation:

Hope it helps you

3 0

3 years ago

Philip Morris wishes to determine if there is a difference between the proportion of women and proportion of men who smoke cigar

uranmaximum [27]

Answer:

Step-by-step explanation:

This is a test of 2 population proportions. Let 1 and 2 be the subscript for the women and men who smoke respectively. The population proportion of women and men who smoke would be p1 and p2 respectively.

p1 - p2 = difference in the proportion of women and men who smoke.

The null hypothesis is

H0 : p1 = p2

p1 - p2 = 0

The alternative hypothesis is

Ha : p1 > p2

p1 - p2 > 0

it is a right tailed test

Sample proportion = x/n

Where

x represents number of success(number of complaints)

n represents number of samples

For women

x1 = 14

n1 = 110

p1 = 14/110 = 0.13

For men,

x2 = 7

n2 = 95

p2 = 7/95 = 0.07

The pooled proportion, pc is

pc = (x1 + x2)/(n1 + n2)

pc = (14 + 7)/(110 + 95) = 0.1

1 - pc = 1 - 0.1 = 0.9

z = (p1 - p2)/√pc(1 - pc)(1/n1 + 1/n2)

z = (0.13 - 0.07)/√(0.1)(0.9)(1/110 + 1/95)

z = 1.47

From the options given, the test statistic is

e. none of these is correct.

Since it is a right tailed test, we will look at the area to the right of z = 1.47. The p value would be

p value = 1 - 0.9292 = 0.078

Since alpha, 0.005 < than the p value, 0.078, then we would fail to reject the null hypothesis. Therefore, the data does not indicate that the proportion of women who smoke cigarettes is higher than the proportion of men who do at α=.005

8 0

3 years ago

Si yo tengo una canasta llena de mangos y piñas, de las cuales hay 30

skelet666 [1.2K]

Respuesta: Es más probable sacar un mango.

Explicación:

La probabilidad se refiere a la posibilidad de que un evento occura y no otro. En el caso que se describe, la probabilidad de sacar cada fruta puede ser calculada dividiendo el total de cada fruta en el número de frutas totales:

Probabilidad de sacar un mango:

$\frac{cantidad de mangos}{cantidad de frutas en la canasta}$ = $\frac{30}{50}$ = $0.6$

Probabilidad de sacar una piña:

$\frac{cantidad de pinas}{cantidad de frutas en la canasta} = \frac{20}{50}$ $= 0.4$

De acuerdo a lo anterior la probabilidad de sacar un mango es de 0.6 o de 60% (multiplica la probabilidad por 100 para saber su equivalente en porcentaje), mientras que la probabilidad de sacar un mango es de 0.4 o 40% lo cual es mucho más bajo. Es decir que es más probable sacar un mango.

7 0

3 years ago