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MAXImum [283]
3 years ago
7

Please help me pleeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaasssssssssssssssssssssss

Mathematics
1 answer:
balandron [24]3 years ago
4 0
B is the correct answer
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What is the trigonometric expression of sec^2x - 1 divided by sec^2x ??
labwork [276]
Hello : 
(sec²x - 1) / sec²x  = (sec²x / sec²x) -1/sec²x
                             = 1 -1/sec²x
                             = 1- (1/secx)²
                              = 1 -cos²x
                              = sin²x
8 0
3 years ago
How do you work out the length of radius and diameter of these two circles?
bogdanovich [222]
So for the first one what you did was wrong as in wrong formula.
Radius is 5cm as it is given and diameter is double the radius which is 10.
So r=5
And D=10.

For the second one the diameter is 16cm as it is given and radius is half the diameter,so half of 16 is 8cm right?
So r=8
And D=16
8 0
4 years ago
Clara found a nickel, a quarter, two dimes, another quarter, and two pennies in her desk drawer, how much money did clara find?
alisha [4.7K]

Answer:77 cents Clara found 77 cents bc you just need to add up the cents and you have it

7 0
3 years ago
Read 2 more answers
A researcher surveyed 80 adults and found that 22 regularly run for exercise and 18 regularly swim for exercise.
Aliun [14]
Whenever the questions asks for the probability and has "or" you have to add the two probabilities. In the same way, "and" implies multiplication. Therefore, the probability that someone swims is:
\frac{18}{80} =  \frac{9}{40}

Probability that someone runs:
\frac{22}{80} =  \frac{11}{40}

Thus, if you add them:
\frac{9}{40} +  \frac{11}{40} =  \frac{20}{40}  =  \frac{1}{2}

So, the probability that someone swims <em>or</em> runs is 1/2 or 50%.
6 0
3 years ago
What is the value of the expression -5(3+4)?
777dan777 [17]

Answer:

-35

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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