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4 years ago

Pls help i am sp confused ♥️

Mathematics

1 answer:

Llana [10]4 years ago

6 0

64029 + 5151 + 69180

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Find sin(a+B)

diamong [38]

Answer:

Cos A=5/13

we have

Cos² A= $1-Sin ²A$

25/169=1-Sin²A

sin²A=1-25/169

sin²A=144/169

Sin A= $\sqrt{144/169}=12/13$

again

Tan B=4/3

P/b=4/3

p=4

b=3

h= $\sqrt{3²+4²}=5$

Now

Sin B=p/h=4/5

in IV quadrant sin angle is negative so

Sin B=-4/5

CosB=b/h=3/5

Now

Sin(A+B):sinAcosB+CosAsinB

now 

substitute value

Sin(A+B):12/13*3/5+5/13*(-4/5)=36/65-4/13

=16/65 is a required answer

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3 years ago

How many cups of raisins are needed

Amanda [17]

Answer:

1 1/3

Step-by-step explanation:

Half of 2 is 1, Half of 2/3 is 1/3. Thus, 1+1/3= 1 1/3

7 0

4 years ago

What is the ratio of the corresponding side lengths

STALIN [3.7K]

Answer:they are equal

Step-by-step explanation:

8 0

3 years ago

A rectangular solid has sides of 10 cm, 6.5cm and 8.3 cm. What is the volume and the surface area?

dangina [55]

Part (1):
Volume of the rectangular prism can be calculated as follows:
volume = length * width * height
We are given the three dimensions, therefore, all we need to do is substitute in the above equation as follows:
volume = 10 * 6.5 * 8.3
volume = 539.5 cm³

Part (2):
Surface area of rectangular prism an be calculated as follows:
Surface area = 2(length*width) + 2(width*height) + 2(length*height)
Surface area = 2(10*6.5) + 2(6.5*8.3) + 2(10*8.3)
Surface area = 130 + 107.9 + 166
Surface area = 403.9 cm²

Hope this helps :)

3 0

4 years ago

Write the equation of the graph in vertex form enter power using ^ and don’t forget y or f(x)

enyata [817]

Me!!!! 245554! Then do 45316

8 0

3 years ago