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2 years ago

HELP QUICK.

Mathematics

2 answers:

Aleks04 [339]2 years ago

7 0

Answer:

Step-by-step explanation:

lakkis [162]2 years ago

5 0

Pretty sure it’s C That one makes the most sense to me please let me know if you get it right

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1/4 times X -1+ 3X equals 2

iris [78.8K]

Answer:

Step-by-step explanation:

4 0

2 years ago

Solve for p 3+|1+p|=12

Usimov [2.4K]

Subtract 3 from both sides

simplify 12 - 3 to 9

break down the problem into these two equations

1 + p = 9 and -(1 + p) = 9

solve the first equation 1 + p = 9 and that would be 8 since 1 + 8 = 9 is true.

solve the second equation -(1 + p) = 9 and just simplify brackets and add 1 to both sides then add 9 + 1 and lastly multiply both sides by -1 and p = -10.

Gather both solutions

Answers: p = -10, 8

5 0

2 years ago

Simplify the expression cos x cot x+ sin x please select the best answer from the choices provided a.0, b.csc x, c. Tan x, d sec

expeople1 [14]

Answer:

$cot x = \frac{cos x}{sin x}$

$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

$sin^2 x + cos^2 x =1$

Solving for $cos^2 x$ we got $cos^2 x =1 -sin^2 x$ and replacing this we got:

$\frac{1-sin^2 x}{sin x} +sin x$

$\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x$

$csc x -sin x + sin x = csc x$

And then the best option for this case would be:

b.csc x

Step-by-step explanation:

For this case we have the following expression given:

$cos x cot x + sin x$

We know from math properties that the definition for cot is $cot x = \frac{cos x}{sin x}$

If we use this definition we got:

$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

Now we can use the following identity:

$sin^2 x + cos^2 x =1$

Solving for $cos^2 x$ we got $cos^2 x =1 -sin^2 x$ and replacing this we got:

$\frac{1-sin^2 x}{sin x} +sin x$

$\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x$

$csc x -sin x + sin x = csc x$

And then the best option for this case would be:

b.csc x

4 0

3 years ago

in an election between two candidates one got 55% of the total valid votes 20% votes were invalid if the total number of votes w

timurjin [86]

Answer:

25%- 1875 Votes

7500 x 0.55 = 4125 (first candite valid votes)

7500 x 0.20 = 1500 (invalid)

first candite valid votes (55) + invalid votes (20) = 75% of total votes

first candite valid votes (4125) + invalid votes (1500 ) = 5625 of total votes

100 (total percent of votes) - 75 (total percent of votes) = 25% Votes Left

7500 (total number of votes) - 5625 (total number of votes) = 1875 Votes Left

7500 x 0.25 = 1875 (valid votes for the other candite)

4 0

2 years ago

Which of the following demonstrates how the 20 is calculated using the combination pattern

UNO [17]

The combination expression that demonstrates how the 20 is calculated using the combination pattern is 6C3

<h3>Permutation and Combination</h3>

While combination has to do with selection, permutation has to do with arrangement.

According to the combination rule

nCr = n!/(n-r)!r!

The expression that gives the result of 20 is expressed below;

6C3 = 6!/(6-3)!3!

6C3 = 6!/3!3!

6C3 = 6!/6*6
6C3 = 720/36
6C3 =20

Hence the combination expression that demonstrates how the 20 is calculated using the combination pattern is 6C3

Learn more on combination here: brainly.com/question/4658834

#SPJ1

5 0

2 years ago