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2 years ago

1/12 (14.4 + 18) + 2.75

Mathematics

1 answer:

n200080 [17]2 years ago

6 0

Answer:

the answer is 5.45

Step-by-step explanation:

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1+secA/sec A = sin^2 A / 1-cos A

Fofino [41]

Answer: see proof below

<u>Step-by-step explanation:</u>

$\dfrac{1+\sec A}{\sec A}=\dfrac{\sin^2 A}{1-\cos A}$

Use the following Identities:

sec Ф = 1/cos Ф

cos² Ф + sin² Ф = 1

<u>Proof LHS → RHS</u>

$\text{LHS:}\qquad \qquad \dfrac{1+\sec A}{\sec A}$

$\text{Identity:}\qquad \qquad \dfrac{1+\frac{1}{\cos A}}{\frac{1}{\cos A}}$

$\text{Simplify:}\qquad \qquad \dfrac{\frac{\cos A+1}{\cos A}}{\frac{1}{\cos A}}\\\\\\.\qquad \qquad \qquad =\dfrac{1+\cos A}{1}$

$\text{Multiply:}\qquad \qquad \dfrac{1+\cos A}{1}\cdot \bigg(\dfrac{1-\cos A}{1-\cos A}\bigg)\\\\\\.\qquad \qquad \qquad =\dfrac{1-\cos^2 A}{1-\cos A}$

$\text{Identity:}\qquad \qquad \dfrac{\sin^2 A}{1-\cos A}$

$\text{LHS = RHS:}\quad \dfrac{\sin^2 A}{1-\cos A}=\dfrac{\sin^2 A}{1-\cos A}\quad \checkmark$

3 0

3 years ago

Can someone help me plzzzzzz

Alex

Big rectangle
3x-4 (2x+2) = 6x^2-8x+6x-8
=6x^2-2x-8 = 3x^2-x-4

Small rectangle
(X-3) (x-6) = x^2-3x-6x+18
=x^2-9x+18

Big-small= 2x^2+8x-22 is the area of the shaded region

5 0

3 years ago

How is the graph of y= 1/3x related to its parent function y=1/x

V125BC [204]

B it is horizontally stretched by a factor of of 3 and reflected over the y

7 0

3 years ago

Read 2 more answers

Click in the appropriate box to indicate the match of each table of values to its

taurus [48]

Answer:

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8 0

3 years ago

A/g=1 solve for a how do I get my answee to this problem

Mama L [17]

Answer:

a=g

Step-by-step explanation:

If you are solving for 'a', then you just need to get 'a' separated on its own. To do this, you can multiply both sides of the equation by 'g'. Now you have "a=1g" which simplifies into "a=g"

3 0

3 years ago