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Cloud [144]
2 years ago
8

Which expression is equivalent to sec2x − 1?

Mathematics
1 answer:
hichkok12 [17]2 years ago
6 0
<span><span>tan^2</span>(x) is the answer.</span>
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Help! I'm so confused
sweet-ann [11.9K]
An integer is like a whole number (28 is an integer).
Irrational means the decimal goes on forever.......and cannot be written as a fraction (0.9857... is irrational).
A number that is not real is the squareroot of a negative, or something times i, or dividing by zero (5/0 is unreal).
A rational number can be written as a fraction (like 8 and 1/7).
5 0
3 years ago
Simplifying 23-13 <br>2 ​
strojnjashka [21]

Use photo math, it will help you with your answer a lot more.

7 0
2 years ago
Supposed charity received a donation of $23.9 million. If this represents 54% of the charity donated funds what is the total amo
Tanzania [10]

Total amount of funds is $44.26 million.

Step-by-step explanation:

Given,

Donation received = $23.9 million

As it represents 54% of charity.

Let,

Total amount = x

Therefore,

54% of x = 23.9 million

\frac{54}{100}*x=23.9\\0.54x=23.9

Dividing both sides by 0.54

\frac{0.54x}{0.54}=\frac{23.9}{0.54}\\x=\$44.26\ millions

Total amount of funds is $44.26 million.

Keywords: percentage, division

Learn more about percentages at:

  • brainly.com/question/3950386
  • brainly.com/question/4021035

#LearnwithBrainly

8 0
3 years ago
Home sales again In the previous exercise, you found a 95% confidence interval to estimate the average loss in home value. a) Su
Sphinxa [80]

Answer:

Step-by-step explanation:

Given that Home sales has 95% confidence interval to estimate the average loss in home value.

a) If std deviation of losses doubles as 3000 from 1500, we have margin of error also increases.  Because margin of error

= ±Critical value * Std error

= ±Critical value * Std dev/sqrt n

Hence we find that whenever std deviation increases the margin of error increases, for the same level of confidence.

b) Whenever confidence level increases, critical value increases and as a result margin of error increases.  Hence by reducing from 95% to 90% confidence interval would be reduced. True

c) Instead of changing conf level, increasing sample size would give more reliale and accurate results.

7 0
3 years ago
What should I do ? Where it’s say ‘ start here ‘?
azamat
Solve the question and go on from there like you were already doing.
8 0
2 years ago
Read 2 more answers
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