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2 years ago

Carolyn selected a tile randomly from the set shown below. What is the probability that she selected a while

Mathematics

1 answer:

Ratling [72]2 years ago

4 0

Letter c
Letter c
Letter c
Letter c
Letter c

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jada has already taken 4 pages of notes on her own, and she will take 2 pages out during each class session. In all, how many cl

stich3 [128]

Answer:

Step-by-step explanation:

I don't totally understand you question but if its 4 pages originally then she takes 2 pages every class, then

56-4= 52 (56 pages minus the 4 she already took).

52/2= 26 (52 pages divided by 2 pages per class)

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3 years ago

[Please help] I am very weak at functions, I just need yes's and no's! ;-;

egoroff_w [7]

Answer:

left to right

yes no no no yes yes yes yes yes yes yes no

Step-by-step explanation:

the x values can only have 1 y

Y's can have as many X's

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2 years ago

Zorna weighs 92 pounds. Her weight is 6 pounds more than half of her father's weight. Which equation would help me find out how

8_murik_8 [283]

$92 - 6 = 86$

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3 years ago

Taxes on 100 dlls??

dezoksy [38]

The sales tax is 6.25% from $100

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2 years ago

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

SashulF [63]

<u>ANSWER</u>

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

<u>EXPLANATION</u>

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:

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

7 0

3 years ago