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2 years ago

An umbrella costs $6. If Iris purchases 2 umbrellas, how much will these umbrellas cost? Solve an equation to find the answer.

Mathematics

2 answers:

astraxan [27]2 years ago

8 0

Answer:

$12

Step-by-step explanation:

6x=6(2)=12

Wewaii [24]2 years ago

7 0

Answer: $12

Step-by-step explanation: $6 x 2 = $12

Hope this helps!

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Which linear inequality is represented by the graph?

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2 years ago

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MAVERICK [17]

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3 years ago

Convert the Cartesian equation (x 2 + y 2)2 = 4(x 2 - y 2) to a polar equation.

SashulF [63]

ANSWER

${r}^{2} = 4 \cos2\theta$

EXPLANATION

The Cartesian equation is

${( {x}^{2} + {y}^{2} )}^{2} = 4( {x}^{2} - {y}^{2} )$

We substitute

$x = r \cos( \theta)$

$y = r \sin( \theta)$

and

${x}^{2} + {y}^{2} = {r}^{2}$

This implies that

${( {r}^{2} )}^{2} = 4(( { r \cos\theta) }^{2} - {(r \sin\theta) }^{2} )$

Let us evaluate the exponents to get:

${r}^{4} = 4({ {r}^{2} \cos^{2}\theta } - {r}^{2} \sin^{2}\theta)$

Factor the RHS to get:

${r}^{4} = 4{r}^{2} ({ \cos^{2}\theta } - \sin^{2}\theta)$

Divide through by r²

${r}^{2} = 4 ({ \cos^{2}\theta } - \sin^{2}\theta)$

Apply the double angle identity

$\cos^{2}\theta -\sin^{2}\theta= \cos(2 \theta)$

The polar equation then becomes:

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3 years ago

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Answer:

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if B is more than 1, then it is a growth function

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Example 2: 3000*1.14^x

The y-intercept is increasing by 14%

Example 3: 400*0

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Going back to the function, a is the y-intercept, and b is the rate

I hope this will help you, I just started to learn about exponential functions..

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1 year ago

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grigory [225]

Maybe if you payed attention in class you would know.

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2 years ago