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Oksi-84 [34.3K]
3 years ago
10

Write the product cos(2x)sin(5x) as a sum

Mathematics
1 answer:
ratelena [41]3 years ago
8 0
Come on now, check your book on the "product to sum" identities

\bf cos({{ \alpha}})sin({{ \beta}})=\cfrac{1}{2}[sin({{ \alpha}}+{{ \beta}})\quad -\quad sin({{ \alpha}}-{{ \beta}})]
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Find the number that makes the ratio equivalent to 6:7 <br> 60:
Andru [333]

Answer:

60:70

Step-by-step explanation:

\frac{60}{x}  =  \frac{6}{7}  \\  \\ 60 \times  \frac{7}{6}  = x \\  \\ 70 = x

6 0
3 years ago
What is the behavior?​
wlad13 [49]

Answer:

as x -> -∞, y-> ∞ and as x-> ∞, y -> -∞  - <u>Second option</u>

Step-by-step explanation:

If you look carefully to the left, when x becomes negative the y value becomes positive. On the right, x becomes positive and y becomes negative.

6 0
3 years ago
What is the answer 4x+10=-26
Feliz [49]

Answer: x = -9

Step-by-step explanation:

Subtract 10 from both sides:

4x + 10 - 10 = -26 - 10

Simplify:

4x = -36

Divide both sides by 4:

4x/4 = -36/4

simplify:

-36/4 = -9

Answer: x = -9

7 0
4 years ago
Read 2 more answers
The perimeter of a square measures 26 cm.what is the length of the side of the square.
docker41 [41]

Answer:

It's 3

Step-by-step explanation:

8 0
3 years ago
According to the National Beer Wholesalers Association, U.S. consumers 21 years and older consumed 26.9 gallons of beer and cide
motikmotik

Answer:

Kindly check explanation

Step-by-step explanation:

If the null is rejected, then we conclude that the average Consumption of beer and cider by customers who are 21 years and above is greater than 26.1

A type 1 error is committed if the null hypothesis is incorrectly rejected ; this means we will be concluding that customers who are 21 years and older have higher average Consumption when they actually do not. This may lead to a restriction on beer consumption in the city when there actually isn't a need for it.

For type 2 error, a false null is incorrectly accepted, in this scenario, we are saying that the consumption of beer and cider is not beyond the mean value when in actual sense it is.

3 0
3 years ago
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