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3 years ago

Please show me step by step on how to solve this.

Mathematics

1 answer:

Readme [11.4K]3 years ago

7 0

Well, you have to be given an interval. That is not an interval.

You should be given something like $1 \leq x \leq 2$

If you add those fractions up you'll just get a point on the number line.

Find the LCD for all of them which is 9/6 - 4/6 + 3/6 = 8/6 = 2/3

You'll end up with a point on 2/3

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Raul spent b dollars for lunch. Dolly spent 1/3 of the amount that Raul spent. If c represents the amount dolly spent, express c

Andru [333]

The following problem could be expresses as

c=1/3b or 3c=b

4 0

3 years ago

9/20 divided by 4/15

polet [3.4K]

36/3000 ? maybe 1/5 ....................................

8 0

3 years ago

Read 2 more answers

Use a calculator to solve for theta in the given interval

Allushta [10]

Answer:

d. $1.82\: or\:4.46$

Step-by-step explanation:

The given trigonometric equation is;

$\sec \theta=-4.0545$

Recall that;

$\cos \theta=\frac{1}{\sec \theta}$

$\implies \cos \theta=\frac{1}{-4.0545}$

$\implies \cos \theta=-0.2466$

The cosine function is negative in the second and third quadrant.

$\theta=\pi-\cos^{-1}(0.2466)\: or\:\pi+\cos^{-1}(0.2466)$

$\theta=1.82\: or\:4.46$

4 0

3 years ago

Compare the graphs of the inverse variations. Please provide at least 3 comparisons

Vadim26 [7]

Both are horizontal, both are parallel to the x-axis, both are below the x-axis.These were just visual comparisons, which may not be what you need. I found this on yahoo.
1, -0.2, -0.3
2, -0.1, -0.15 
3, -0.0667, -0.1 
4, -0.05, -0.075 
5, -0.04, -0.06 
6, -0.0333, -0.05 
7, -0.0286, -0.0429 
8, -0.025, -0.0375 
9, -0.0222, -0.0333 
10, -0.02, -0.03
 An easy way to compare multiple graphs is to graph them in a graphing calculator at the same time. If you don't have a graphing calculator, Desmos is a great option!

4 0

3 years ago

Chris purchased a used car for $19,700. The car depreciates exponentially by 10% per year. How much will the car be worth after

Monica [59]

Given: Purchasing value of car = $19,700,

Rate of depriciation = 10% per year.

To find: Final value of car after after 6 years.

Solution : Because rate of car is being depriciated exponential. So, we would exponential formula.

$A = Pe^{-kt}.$

Where, P is the purchase value, k is the rate of depriciation and t is the number of years.

Plugging values P = 19,700, r=10% that is 0.10 and t= 6 in above formula.

$A= 19,700e^{-0.10*6}$

$A= 19,700e^{-0.60}$

A= 19,700 (0.54881163609)

A= 10811.5892311.

Rounding to the nearest penny (two decimal places0.

A= 10811.59.

Therefore, Final value of car after after 6 years = $ 10811.59

6 0

3 years ago