I need some help with this one?

Mathematics

1 answer:

Elis [28]2 years ago

7 0

Answer:

try 1 and 2 for supplementary

and 7 and 6 for vertical

Step-by-step explanation:

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Sebastian compro dos alfajores de $ 2,65 cada uno y un chocolate. Si pago con $ 20 y le dieron $ 6,25 de regreso, ¿cuánto cuesta

nlexa [21]

Answer:

El chocolate cuesta 8.45

2.65 x 2 = 5.3

20 - 6.25 = 13.75

13.75 - 5.3 = 8.45

8 0

3 years ago

Determine where the function is increasing, decreasing, and constant.

Rama09 [41]

Answer:

Step-by-step explanation:

How does y change as x increases over a range?

As x increases from -6 to -4, y decreases from 0 to -7

It is a decreasing function in this range and for ranges less than x = -6 as well as the slope is nearly constant

As x increases from -4 to 0, y increases from -7 to 4

It is an increasing function in this range.

For x increasing from zero, y becomes less and less

It is a decreasing function in the range larger than x = 0

8 0

2 years ago

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A normal distribution curve, where x = 70 and σ = 15, was created by a teacher using her students’ grades. What information abou

alexira [117]

The correct answer is:

We can conclude that 68% of the scores were between 55 and 85; 95% of the scores were between 40 and 100; and 99.7% of the scores were between 25 and 100.

Explanation:

The empirical rule tells us that in a normal curve, 68% of data lie within 1 standard deviation of the mean; 95% of data lie within 2 standard deviations of the mean; and 99.7% of data lie within 3 standard deviations of the mean.

The mean is 70 and the standard deviation is 15. This means 1 standard deviation below the mean is 70-15 = 55 and one standard deviation above the mean is 70+15 = 85. 68% of data will fall between these two scores.

2 standard deviations below the mean is 70-15(2) = 40 and two standard deviations above the mean is 70+15(2) = 100. 95% of data will fall between these two scores.

3 standard deviations below the mean is 70-15(3) = 25 and three standard deviations above the mean is 70+15(3) = 115. However, a student cannot score above 100%; this means 99.7% of data fall between 25 and 100.

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3 years ago

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What is the equation of the horizontal asymptote? f(x)=4(52)x+7 y=?

natta225 [31]

ANSWER

y=7

EXPLANATION

The horizontal asymptote of an exponential function

$f(x)= a {(b)}^{x} + c$