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hodyreva [135]
2 years ago
14

(sin30°+cos60°) (tan60°-sec30°)​

Mathematics
2 answers:
vredina [299]2 years ago
7 0

Answer:

i hope this will help you

olga_2 [115]2 years ago
5 0

Answer:

\frac{ \sqrt{3} }{3}

Step-by-step explanation:

(sin30 +  \cos(60) )( \tan(60)  -  \sec(30)

( \frac{1}{2}  +  \frac{1}{2} )( \sqrt{3} -  \frac{2 \sqrt{3} }{3})

(1)( \sqrt{3} ) over 3

=  \frac{ \sqrt{3} }{3}

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30 POINTS!!!!!!!! JoeNah, DeKobian and Evan wrote equations to calculate the amount of money in a savings account after one year
castortr0y [4]

Answer:

See the explanation for the answer to this question

Step-by-step explanation:

Let

B ---> the balance of money saved.

M ---> the amount invested in dollars

JoeNah's Equation

M=$100

B=1.5(100)=\$150

Dekobian's Equation

M=$100

B=100+0.05(100)=\$105

Evan's Equation

M=$100

B=M(1+0.05)

Substitute

B=100(1+0.05)=\$105

Dekobian's equation and Evan's equation are correct! :)

JoeNah's equation is wrong. :(

Hope this helps you!

Have a good evening!

4 0
3 years ago
Look at the pic and please help do only number 3 please
Effectus [21]
They must have the same solution because they are doubled from eachother
5 0
2 years ago
Solve inequalities.
grigory [225]

Answer:

10. 7n - 1 < -8

Isolate the variable, n. Do the opposite of PEMDAS. Treat the < as equal sign, what you do to one side, you do to the other. First, add 1 to both sides:

7n - 1 (+1) < - 8 (+1)

7n < - 8 + 1

7n < - 7

Isolate the variable, n. Divide 7 from both sides:

(7n)/7 < (-7)/7

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n < -1 is your answer.

11. 3 > -7v + 4v

Combine like terms, then isolate the variable, v. First, add -7v and 4v together.

3 > (-7v + 4v)

3 > (4v - 7v)

3 > (-3v)

Isolate the variable, v. Divide -3 from both sides. Note that since you are dividing a negative number, you must flip the sign:

(3)/-3 > (-3v)/-3

3/-3 > v

-1 < v

v > -1 is your answer.

~

4 0
2 years ago
Identify a pattern and find the next number in the pattern. 57, 52, 47, 42
sweet-ann [11.9K]
The pattern is subtracting each number by 5
8 0
2 years ago
Read 2 more answers
Need help tremendously
Alina [70]
<span>basically since 30 minutes is half of an hour, to get to a full hour you can multiply by 2, so you do that for both, 2/3 included so you get 2/3 * 2/1 4/3 is 1 1/3</span>
5 0
3 years ago
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