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Inga [223]
3 years ago
7

The “pay upfront” car rental company charges an insurance and gas fee of $33 and daily rental fee of $8 per day. The “drive now

pay later” car rental company charges an insurance and gas fee of $18 and has a daily rental fee of $11 per day.
What’s the x variable represent
Mathematics
1 answer:
sergeinik [125]3 years ago
5 0

Answer:

The x variable represents the number of days or the daily rental fee.  

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Pi is an irrational number. could pi = 22/7? why or why not?
Marina CMI [18]
No, it can't.

Irrational numbers are numbers that cannot be expressed as fractions.

So therefore, Pi cannot equal 22/7.
4 0
3 years ago
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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
What is the area of the polygon given below?​
never [62]

Answer:

C 340 square units

Step-by-step explanation:

Divide it into smallest pieces.

I see two rectangles that I'm going to do.

The long rectangle reading the paper from bottom to top is a 4 by (4+11+4) rectangle.

The wide rectangle reading the paper from left to right is a 24 by 11 rectangle.

We need to find the area of both of these rectangles and then just add them together to get the total area.

So first rectangle has area 4(19)=76 and the second rectangle has area 264.  The sum of these two numbers are 340 square units.

3 0
3 years ago
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Simply the following expression: 12x + 5x - 8x
jonny [76]

12x+5x-8x=9x

12x+5x=17x

17x-8x=9x

7 0
3 years ago
Nelly spends 25% of her free time surfing the internet if she spends approximately 1 hour per day surfing the internet how many
Stells [14]
She would have 4 hours of free time because 25% is 1/4 of 100% and 1 hour is equal to 25% so 1 time 4 is equal to 4.
5 0
3 years ago
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