2 years ago

What is the answer to this

Mathematics

1 answer:

MrMuchimi2 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

Which is an important difference between the five themes and the several

Zolol [24]

Answer:

i did it again i did i did not do did it

4 0

2 years ago

A small pebble has a mass of about 20 L b. 20 ml 20 g 20 kg d.

zhuklara [117]

Answer:

20g

since mass should be in kg or gram if small then g

7 0

3 years ago

Elizabeth spends $12.40 on a new CD. This amount is 62% of her monthly allowance. Find the amount of Elizabeth's monthly allowan

valkas [14]

Answer:

20.00

Step-by-step explanation:

6 0

3 years ago

Evaluate the following expression when x = 6 and y = 2:

Liula [17]

Answer:

11/2

Step-by-step explanation:

$\frac{ {x}^{2} + {y}^{3} }{2 + x} \\$

when,

$x = 6 \\ y = 2$

Now substitute the value we get,

$\frac{ {6}^{2} + {2}^{3} }{2 + 6} \\ \\ = \frac{36 + 8}{8} \\ \\ = \frac{44}{8} \\ \\ = \frac{11}{2}$

5 0

3 years ago

Verify: cos(2A)=(cotA-tanA)/cscAsecA

kolbaska11 [484]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

cot A = $\frac{cosA}{sinA}$ , tanA = $\frac{sinA}{cosA}$ , cscA = $\frac{1}{sinA}$ , secA = $\frac{1}{cosA}$

Consider the right side

$\frac{cotA-tanA}{cscAsecA}$

= $\frac{\frac{cosA}{sinA}-\frac{sinA}{cosA} }{\frac{1}{sinA}.\frac{1}{cosA} }$

= $\frac{\frac{cos^2A-sin^2A}{sinAcosA} }{\frac{1}{sinAcosA} }$

= $\frac{cos^2A-sin^2A}{sinAcosA}$ × sinAcosA ( cancel sinAcosA )

= cos²A - sin²A

= cos2A

= left side ⇒ verified

5 0

3 years ago