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3 years ago

the height of an airplane as it descends to an airport runway is it rational ,integers, whole ,or irrational?

1 answer:

6 0

Rational. Not whole or integer because its an exact measurement and not irrational because it CAN be expressed as a ratio (fraction, decimal measurement )
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Simplify the expression. Quantity cosecant of x to the power of two times secant of x to the power of two divided by quantity se

Art [367]

Answer:

D. 1

Step-by-step explanation:

We have the expression, $\frac{\csc^{2}x\sec^{2}x}{\sec^{2}x+\csc^{2}x}$

We get, eliminating the cosecant function,

$\frac{\sec^{2}x}{\frac{\sec^{2}x}{\csc^{2}x}+1}$

As, sinx is reciprocal of cosecx and cosx is reciprocal of secx,

i.e. $\frac{\sec^{2}x}{\frac{\sin^{2}x}{\cos^{2}x}+1}$

i.e. $\frac{1}{\cos^{2}x}\times \frac{\cos^{2}x}{\sin^{2}x+\cos^{2}x}$

Since, we know that, $\sin^{2}x+\cos^{2}x=1$

Thus,

$\frac{1}{\cos^{2}x}\times \frac{\cos^{2}x}{\sin^{2}x+\cos^{2}x}=1$

So, after simplifying, we get that the result is 1.

Hence, option D is correct.

3 0

2 years ago

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. Wh

iren2701 [21]

Not choosing all mysteries...

4 0

3 years ago

Read 2 more answers

A recipe requires 9 cups of milk you can only measure using 3/4 cups. How many 3/4 cups are needed for the recipe

notsponge [240]

Answer:

Step-by-step explanation:

In order to find the amount of cups we will divide 9 by 3/4.

9÷3/4

9*4/3

36/3

=12

Please mark as brainliest

7 0

1 year ago

Helpppp please helpppp

neonofarm [45]

Answer:

1.A

2.C

3.D

4.A

Step-by-step explanation:

Hope it helps you

4 0

1 year ago

Joseph is weaving a ceremonial Native American sash the sauce will be 8 feet long when it is completed Joseph wants to add a dia

Rama09 [41]

Answer: The sash will have 20 diamonds when it is completed.

Step-by-step explanation:

Given: The length of American sash= 8 feet

Since, Joseph wants to add a diamond shape every 0.4 ft along the sash.

Therefore, the number of diamonds he will need to complete the sash= $\frac{8}{0.4}$

⇒ The number of diamonds he will need to complete the sash= $\frac{80}{4}=20$

Hence, the number of diamonds he will need to complete the sash= 20

3 0

3 years ago