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Mariulka [41]
3 years ago
14

I need help please i’ll give u a brainliest

Mathematics
2 answers:
Arisa [49]3 years ago
6 0
The answer is actually just 12 !! hope this helped mark as brainliest?
Feliz [49]3 years ago
4 0

Answer:

12

Step-by-step explanation:

c = sqrt(a^2+b^2)

Imput numbers and solve for b!

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The school principal spent $2,000 to buy some new computer equipment.Of this money $120 was used to buy some new keyboards.What
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Answer:

6%

Step-by-step explanation:

120/2000= 60/1000= 6/100= 6%

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3 years ago
A shopper paid$67.36 including tax for an item marked $62.95. What should she pay for another item marked $82?
Jlenok [28]

Answer:

153.77

Step-by-step explanation:

First, you subtract the item's original price from the price with tax. Then, you use the tax price from the subtraction, (your answer) and add it to the 82$. Last, add the $67.36 with $86.41 (the tax added to the $82) and you will get your answer, $153.77

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The greens want to put an additional on their house 18 months from now they will need to save 10620 in order to achieve this goa
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3 years ago
On average, 70% of the students that enroll in an Engineering Technology degree program at MKU complete the program and receive
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The answer will be 90% of the people egeniring

8 0
3 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
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