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STatiana [176]
3 years ago
14

Help with number 13?

Mathematics
1 answer:
ella [17]3 years ago
5 0
896.088
$896

.025(500)^1.24. Times 2.25
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PLEASE HELP 30 POINTS
Mila [183]
I haven’t really learned this but I think it’s the second one! :)
7 0
3 years ago
Someone pelase help me!!!!
Art [367]

Answer:

\boxed{\bold{True}}

\boxed{\bold{True}}

Step By Step Explanation:

Equation One:

Multiply Both Sides By One (Reverse The Inequality)

\bold{\left(-\frac{2}{5}x\right)\left(-1\right)

Simplify

\bold{\frac{2}{5}x

Multiply Both Sides By 5

\bold{5\cdot \frac{2}{5}x

Simplify

\bold{2x

Divide Both Sides By 2

\bold{\frac{2x}{2}

Simplify

\bold{x

-------

Equation Two:

Subtract \bold{\frac{3}{4} } From Both Sides

\bold{-x+\frac{3}{4}-\frac{3}{4}

Simplify

\bold{-x

Multiply Both Sides By -1 (Reverse The Inequality)

\bold{\left(-x\right)\left(-1\right)>\frac{37\left(-1\right)}{4}}

Simplify

\bold{x>-\frac{37}{4}}

8 0
3 years ago
Simplify tan9x-tan5x / 1+tan9xtan5x<br> (SHOW WORK)
Charra [1.4K]

Answer:

The simplest form is tan(4x)

Step-by-step explanation:

* Lets revise the identity of the compound angles

- tan(a+b)=\frac{tan(a)+tan(b)}{1-tan(a)tan(b)}

- tan(a-b)=\frac{tan(a)-tan(b)}{1+tan(a)tan(b)}

* Lets solve the problem

- Let 9x = 5x + 4x

∴ tan(9x) = tan(5x + 4x)

- Use the rule of the compound angle

∵ \frac{tan(9x)-tan(5x)}{1+tan(9x)tan(5x)} ⇒ (1)

∵ tan(5x+4x)=\frac{tan(5x)+tan(4x)}{1-tan(5x)tan(4x)} ⇒ (2)

∵ tan(9x) = equation (2)

- Substitute (2) in (1)

∴ \frac{\frac{tan(5x)+tan(4x)}{1-tan(5x)tan(4x)}-tan(5x)}{1+(\frac{tan(5x)+tan(4x)}{1-tan(5x)tan(4x)})tan(5x)}

- Multiply up and down by (1 - tan(5x)tan(4x))

∴ \frac{tan(5x)+tan(4x)-tan(5x)[1-tan(5x)tan(4x)]}{1-tan(5x)tan(4x)+tan(5x)[tan(5x)+tan(4x)]}

- Simplify up and down

∴ \frac{tan(5x)+tan(4x)-tan(5x)+tan^{2}(5x)tan(4x)}{1-tan(5x)tan(4x)+tan^{2}(5x)+tan(5x)tan(4x) }

∴ \frac{tan(4x)+tan^{2}(5x)tan(4x)}{[1+tan^{2}(5x)]}

- Take tan(4x) as a common factor up

∴ \frac{tan(4x)[1+tan^{2}(5x)]}{[1+tan^{2}(5x)]}

- Cancel [1 + tan²(5x)] up and down

∴ The answer is tan(4x)

4 0
4 years ago
Melanie buys 2 shells for $0.80. Rosi buys 3 shells for $1.20. Carlos buys 4 shells for $1.60. Use the graph to determine whethe
Agata [3.3K]

Answer:

There's a proportion relationship between number of shell and their cost

Step-by-step explanation:

The graph is not given.

However, I've added the appropriate graph as an attachment.

From this, point....

I'll show that the cost and number of shells as given in the question are proportional.

Represent cost with y and number of shells with x

x = 2 when y = 0.8

x = 3 when y = 1.2

x = 4 when y = 1.6

Divide each value of y by x to get the constant of proportion (r).

r = y/x

r = 0.8/2 = 0.4

r = 1.2/3 = 0.4

r = 1.6/4 = 0.4

Notice that the values of r remain constant.

Hence, there's a proportion relationship between both

And what this rate represent is that:.the cost of shell changes at a constant rate when the number of shell is changes.

4 0
3 years ago
5000000 divided by what equals 400​
liraira [26]
You take 500,00,00 divided that by 400 and you get your answer 12,500
3 0
3 years ago
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