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3 years ago

3y^4+9y^3-120y^2=0 Need Answer ASAP

Mathematics

2 answers:

Shkiper50 [21]3 years ago

7 0

Answer:

y = 0 , 5 , − 8

(*￣3￣)╭

andrey2020 [161]3 years ago

5 0

$3y^4+9y^3-120y^2=0\\y=0,5,8$

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zalisa [80]

Answer: $384.13 ( rounded)

Original number: $384.125

Step-by-step explanation:

Find 9.75% of Paul's original stock, to find out how much it increased.

9.75*350/100=34.125

Add $34.125 to his original stock.

$384.125

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3 years ago

The weights of 67 randomly selected axles were found to have a variance of 3.85. Construct the 80% confidence interval for the p

VLD [36.1K]

Answer:

$3.13$

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 67

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We have to find 80% confidence interval for the population variance of the weights.

Degree of freedom = 67 - 1 = 66

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Chi square critical value for lower tail =

$\chi^2_{1-\frac{\alpha}{2}}= 51.770$

Chi square critical value for upper tail =

$\chi^2_{\frac{\alpha}{2}}= 81.085$

80% confidence interval:

$\dfrac{(n-1)S^2}{\chi^2_{\frac{\alpha}{2}}} < \sigma^2 < \dfrac{(n-1)S^2}{\chi^2_{1-\frac{\alpha}{2}}}$

Putting values, we get,

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Thus, (3.13,4.91) is the required 80% confidence interval for the population variance of the weights.

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3 years ago

Point p was rotated about the origin (0,0) by -15 degrees. Which point is the image of P?

Airida [17]

Answer:

the answer is d.

Step-by-step explanation:

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3 years ago

I don’t understand the question

kipiarov [429]

Answer:

Answer is given below with explanations.

Step-by-step explanation:

$- 13 {x}^{2} \: has \: only \: one \: term \: and \: highest \: degree \: is \: 2 \\$

1) Option d) Monomial degree 2

$- 8 {y}^{7} - 3 \: has \: two \: terms \: and \: highest degree \: is \: 7$

2) Option c) Binomial degree 7

HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION.

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3 years ago

Sam is 27 years old his age is 6 years greater than 3 times Brandon's age which method can be used to determine Brandon's age

ASHA 777 [7]

Answer:

(27+6)÷3

Step-by-step explanation:

(33) ÷ 3

Brandon is 11 years old.

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3 years ago