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ahrayia [7]
4 years ago
14

PLEASE HELP Use the squared identities to simplify 2cos2x cos2x.

Mathematics
1 answer:
galben [10]4 years ago
6 0

Answer:

D

Step-by-step explanation:

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PLEASE GIVE ME AN ANSWER QUICKLY! Hiroshi spends 30 minutes on history homework , 60 minutes on English homework, and x minutes
natka813 [3]

Answer:

A

Step-by-step explanation:

  • He spends:
  • 30 mins on History
  • 60 mins on English
  • x mins on math
  • so the total time he spends is (TotalTime)minutes=(30+60+x)minutes
  • one fourth of this is his math time, since x is math time, then we have \frac{1}{4}(TotalTime)minutes=(x)minutes
  • But we know what totaltime in minutes is so \frac{1}{4}(30+60+x)minutes=(x)minutes
  • or simply: \frac{1}{4}(30+60+x)=x
8 0
3 years ago
At the popular restaurant Fire Wok, 5 5 % 55% of guests order the signature dish. What fraction of guests order the signature di
Mashcka [7]

Answer:

\frac{11}{20}

Step-by-step explanation:

We are told that at the popular restaurant Fire Wok, 55% of guests order the signature dish.

To find the fraction of guests who ordered the signature dish we can write 55% as 55 divided by 100.

\text{Fraction of guests ordered the signature dish}=\frac{55}{100}

Upon simplifying our fraction we will get,

\text{Fraction of guests ordered the signature dish}=\frac{11}{20}

Therefore, \frac{11}{20} of the guests at the restaurant Fire Wok ordered the signature dish.

4 0
4 years ago
What is the GCF for 7x2 + 21?
laiz [17]

Answer:

35

Step-by-step explanation:

<u>7x2</u>+21

<u>14+21</u>

35

*The underlined problems is what you do first*

4 0
3 years ago
Simplify the expression. − 5 + i over 2 i
I am Lyosha [343]

Answer:

-5/2

Step-by-step explanation:

5+i/2i cancel out the i's and it will be equal to 5/2

7 0
3 years ago
Does anybody no the answer need help please
pentagon [3]
The answer is B $0.75
3 0
4 years ago
Read 2 more answers
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