2 years ago

PLEASE HELP ME SOLVE THIS ILL GIVE BRAINLIST ❗️

Mathematics

1 answer:

neonofarm [45]2 years ago

4 0

Answer:

x=money

Step-by-step explanation:

3<=x<=4 (<= means greater than or equal to)

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Factor sec^2x-secx+tan^2x

marysya [2.9K]

Answer:

sec²(x) - sec(x) + tan²(x) = (sec(x) - 1)(2sec(x) + 1)

Step-by-step explanation:

sec²(x) - sec(x) + tan²(x) =

= sec²(x) - sec(x) + [sec²(x) - 1]

= sec²(x) - sec(x) + [(sec(x) + 1)(sec(x) - 1)]

= sec(x)[sec(x) - 1] + [(sec(x) + 1)(sec(x) - 1)]

= (sec(x) - 1)(sec(x) + sec(x) + 1)

= (sec(x) - 1)(2sec(x) + 1)

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3 years ago

Evaluate the expression.

vodka [1.7K]

Answer:

-1/3

Step-by-step explanation:

Evaluate the power, -3/9

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Final answer, -1/3

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3 years ago

Read 2 more answers

When testing for differences between treatment means, a confidence interval is computed with __________________?

KIM [24]

The confidence interval is based on mean square error. The mean squared error (MSE) of an estimator measures the average of the squares of the errors or deviations. MSE is calculated by the formula attached in the picture, where Xbar is a vector of predictions, X is the vector of predicted values.