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2 years ago

CosA×cos2A+sinA×sin2A=cos (2A-A)

Mathematics

1 answer:

Aleksandr-060686 [28]2 years ago

7 0

Answer:

csc

, as desired!

Step-by-step explanation:

cos

sin

cos

sin

cos

(

−

)

sin

cos

sin

cos

sin

csc

, as desired!

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After a long practice, the marching band drank an entire 15 gallon cooler of water. The foot ball team drank 1/3 less than that.

astra-53 [7]

Answer:

the football team drank 10 gallons of water

Step-by-step explanation:

if the football team drank 1/3 less than 15, 1/3 of 15 is 5 so you would then subtract 5 from 15 and you get 10

6 0

2 years ago

A cylinder and a cone have the same base and height. The cylinder can hold about 4,712 Centimeters cubed of sand. Jared says tha

klasskru [66]

Answer:

C. Jared is not correct because the cone and the cylinder have the same base and height so the cone holds 4,712/3≈1,571 centimeters cubed of sand.

Step-by-step explanation:

We have a cone and a cylinder with the same base and height.

We can express the volume of the cylinder as:

$V_{cyl}=\pi r^2H$

being r the radius and H the height.

The volume of the cone can be written as:

$V_{con}=\dfrac{\pi}{3}r^2H=\dfrac{V_{cyl}}{3}$

As they have the same base and height, we know that the volume of the cylinder is 3 times the volume of the cone.

If the volume of the cylinder is 4,712 cm^3, then the volume of the cone is:

$V_{con}=\dfrac{V_{cyl}}{3}=\dfrac{4,712}{3}\approx1571$

8 0

3 years ago

Read 2 more answers

Can you solve this:<br> JUST number 7 and 8<br> Thanks everyone

kaheart [24]

For number 7 because 9 is the number of small triangle and 99 is for the bigger one so you can say 9 * 11 = 99 so 10 * 11 = 110 = x
and for number 8 because the small triangle has the same sides so the bigger one should have too so x = 100 :)))
hope this is helpful
have a nice day

6 0

2 years ago

What is 9 divided by 883

Masteriza [31]

9 divided by 883 is 0.010192525481314

How:
i used a calculator

8 0

2 years ago

Read 2 more answers

Which of the diagram represents the inequality x=1?

lina2011 [118]

<h3>Answer: Diagram C</h3>

Reason: Any point in the shaded yellow region has an x coordinate larger than 1. Points on the dashed boundary line are not part of the solution set.