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3 years ago

12

Can you please solve AND EXPLAIN this equation: -2y is less than or equal to 2 - 2x

1 answer:

grin007 [14]3 years ago

3 0

Answer:

$y\geq -1 + x$

Step-by-step explanation:

$-2y\leq 2-2x\\$ Divide everything by 2

$-y\leq 1-x$ Divide everything by -1 and since y is negative, you flip the sign

$y\geq -1 + x$

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C more than 5 as an algebraic expression??????

Natasha_Volkova [10]

C more than 5 as an algebraic expression c>5

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2 years ago

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Eric randomly surveyed 150 adults from a certain city and asked which team in a contest they were rooting for, either North Hig

Romashka-Z-Leto [24]

Answer:

B

Step-by-step explanation:

A 95% confidence level interval will have 0.52 (lower interval) & 0.68 (upper interval) which means that that if 90 individuals root for North HS then p value is 0.6 which will fall in the 95% confidence interval range.
For the option B the p value will also be same as in case A hence B is true as an alternative hypothesis.
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3 years ago

Tricia and Melanie are both saving money for their summer vacations. They both began saving at the same time. Tricia started wit

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Answer:

Approximately 2 months

Step-by-step explanation:

Tricia: f(d) = 5.15m + 10.25

Melanie: f(d) = 10.25m

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3 years ago

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How many grams are equal to 3,418 milligrams? Use the placement of the decimal point when dividing by a power of 10 to help you.

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Answer:

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2 years ago

5. If the covariance between the variables x and y is 18 and the variance

klasskru [66]

Answer:

The coefficient of correlation=0.5

Step-by-step explanation:

We are given that

Covariance between the variable x and y=18

Variance of x=16

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We have to find the coefficient of correlation

We know that

Coefficient of correlation

$r=\frac{covariance(x,y)}{\sqrt{variance(x)}\times \sqrt{variance(y)}}$

Using the formula

$r=\frac{18}{\sqrt{16}\times \sqrt{81}}$

$r=\frac{18}{4\times 9}$

$r=0.5$

Hence, the coefficient of correlation=0.5

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3 years ago