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4 years ago

Limit of sec x as x approaches π/4

1 answer:

8 0

Hello,

$$ \lim_{x \to \frac{\pi}{4} } \dfrac{1}{cos\ x}\\
= \dfrac{1}{ \dfrac{ \sqrt{2}}{2} } \\
=\dfrac{ 2}{\sqrt{2}}=\sqrt{2}\\
$

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Solve. 5 = –(–z + 3) a. –8 b. 8 c. –2 d. 2

gulaghasi [49]

-(-z + 3) equals z - 3
5 = z - 3
z = 8

5 0

4 years ago

Read 2 more answers

What do you do to convert 0.02083 to 75 mph?

Verdich [7]

Answer:

I wish i could help. i asked my teacher any he doesnt even know

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4 years ago

A chicken salad recipe calls for 1 8

NARA [144]

Answer: $1.0625\ pounds$ or $\frac{17}{16}\ pounds$

Step-by-step explanation:

The complete exercise is: "A chicken salad recipe calls for $\frac{1}{8}$ pound of chicken per serving . How many pounds of chicken are needed to make $8\frac{1}{2}$ serving".

You can convert the Mixed number to a Decimal number. Divide the numerator 1 by the denominator 2 and then add the quotient to the Whole number. Then, you get:

$8+0.5=8.5$

Now divide the numerator 1 by the denominator 8 to write the fraction to a Decimal number. Then:

$\frac{1}{8}= 0.125$

Let be "x" the amount of pounds are needed to make $8\frac{1}{2}$ serving.

Then, you can set up the following proportion:

$\frac{1}{0.125}=\frac{8.5}{x}$

Solving for "x", you get:

$\frac{1}{0.125}=\frac{8.5}{x}\\\\x(\frac{1}{0.125})=8.5\\\\x=8.5*0.125\\\\x=1.0625$

or $\frac{17}{16}\ pounds$

7 0

3 years ago

Solve for x I'm not sure of the way I answered it so can anyone help plz

Helga [31]

Answer:

x = √76

Step-by-step explanation:

in upper triangle :

7² - 3² =40 so the third side of the upper triangle is : √40

in the biggest triangle :

(3+3)² + 40 = 76 so the another side of the biggest triangle is : √76

4 0

3 years ago

Make a decision about the given claim. use only the rare event? rule, and make subjective estimates to determine whether events

Elan Coil [88]

Given claim: A coin favors heads when tossed, and there are 90 heads in 100 tosses.

Answer: There isn’t sufficient evidence to support this claim, because the coin is a fair coin.

Given claim: Movie patrons have IQ scores with a standard deviation that is less than the standard deviation of 15 for the general population. A simple random sample of 40 movie patrons result in IQ scores with a standard deviation of 14.8.

Answer: Claim is either true or false

In a rare event rule, we conclude that the assumption is probably not correct, if, under a given assumption, the probability of a particular observed event is exceptionally small.

4 0

3 years ago