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solmaris [256]
3 years ago
10

Lucy collected data at her school based on a statistical question. She made a histogram to analyze her data. Which question migh

t Lucy have asked?
How many students are in Lucy’s school?


How tall is the tallest building in Lucy’s school?


What is the area of the playground at Lucy’s school?


What are the heights of the students in Lucy’s school?
Mathematics
2 answers:
Agata [3.3K]3 years ago
8 0
What are the heights of the students in lucy’s school”
Drupady [299]3 years ago
3 0
Answer: How many students are in Lucy’s school
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Your history test is out of 30 points. How many points would you need to get if you wanted a ‘B’ or higher? (Hint: A grade of 80
Sloan [31]
To get a B, you need at least 80%.

30 x 0.8 = 24

80% of 30 is 24, so you would need to get at least 24 points <3
7 0
3 years ago
Read 2 more answers
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
What is the answer for 52 divided by 8 with remainder
Sveta_85 [38]
The answer is 6 with a remainder of 4
4 0
4 years ago
Which graph represents vaiable values for y= 5.5 where is x the number of cans of tomato paste and y is the total weigh of the s
kolezko [41]

Answer:

there is no answer put a picture

Step-by-step explanation:


5 0
3 years ago
What is the area of the triangle?<br> 7<br> 2
Andreas93 [3]

Answer:

7 square units

Step-by-step explanation:

A = 7 x 2 x 1/2

A = 14 x 1/2

A = 7

Hope that helps!

5 0
3 years ago
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