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dusya [7]
2 years ago
9

HELP ME PLEASE I NEED HELP

Mathematics
1 answer:
eduard2 years ago
6 0

Answer:

sorry dont know

Step-by-step explanation:

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If sin(x) = cos(y) for acute angles x and y, how are the angles related?
Vesnalui [34]

Answer:

b. complementary

Step-by-step explanation:

-Complementary angles are angles that add up to 90°.

-These are usually the two acute angles in the right triangle.

#To verify, lets take the two angles 30° and 60°:

Cos \ 60\textdegree=0.5\\\\Sin \ 30\textdegree=0.5\\\\\therefore Sin \ 30\textdegree=Cos \ 60 \textdegree=0.5

#We can reverse as:

Sin \ 60\textdegree=0.86603\\\\Cos \ 30\textdegree=0.86603\\\\\therefore Sin \ 60\textdegree=Cos \ 30\textdegree=0.86603

Hence, two angles are said to be complimentary if they sum up to 90°.

6 0
3 years ago
Solve x2 + 14x = −24 by completing the square.<br><br> What is the solution set of the equation?
yan [13]
Hope this helps with the question :)

3 0
3 years ago
Read 2 more answers
5^11 times 5^3 = 5^?
postnew [5]

Answer:

5^{13}

Step-by-step explanation:

5^{11}\times \:5^2

<u>Apply exponent rule : </u>a^b\times \:a^c=a^{b+c}

  • 5^{11}\times \:5^2=5^{11+2}
  • 5^{11+2}

<u>Add 11 +2 = 13</u>

  • <u />=5^{13}

<u>-----------------------</u>

<u>OAmalOHopeO</u>

<u>-----------------------</u>

7 0
2 years ago
What is the word phrase for this algebraic expression z/8-9
ivann1987 [24]
The phrase would be: "z divided by the difference of 8 and 9"
5 0
3 years ago
The price of a shirt is marked down from $12.50 to $10,00. What is the percent decrease of the shirt?
choli [55]

Answer: 20%.

Step-by-step explanation:

Given, The price of a shirt is marked down from $12.50 to $10.00.

Previous price = $12.50

New price = $10.00

Change in price = Previous price - New price

= $12.50 - $10.00

= $2.50

Now, the percent decrease of the shirt = \dfrac{\text{Change in price}}{\text{Prevoius price}}\times100

=\dfrac{2.50}{12.50}\times100\\\\=20\%

Hence, the percent decrease of the shirt = 20%.

7 0
3 years ago
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