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scoundrel [369]
3 years ago
5

Please help im really confused

Mathematics
2 answers:
Dimas [21]3 years ago
7 0

Answer:

A=235 cm 2

Step-by-step explanation:

A1=L x W

A1=9 x 20          180 + 55=235

A1=180cm 2

A2= L x W

A2=11 x 5

A2=55 cm2

GaryK [48]3 years ago
6 0

Answer:

246 {cm}^{2}

hope this helps

brainliest appreciated

good luck! have a nice day!

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What is 4 1/2 - 2 2/5 in simplest form
Serggg [28]

Answer: 2 and 1/10

Step-by-step explanation: To subtract mixed numbers, we first subtract the fractions.

Notice that 1/2 and 2/5 are unlike fractions so we need a common denominator which in this case is 10. <em>If you need a review on how to find the common denominator for these fractions, let me know in the comments below and I will be more than happy to explain</em>.

To get a 10 in the denominator of 1/2, we multiply the numerator and the denominator by 5 to get 5/10. To get a 10 in the denominator of 2/5, we multiply the numerator and denominator by 2 to get 4/10.

So we have 4 and 5/10 - 2 and 4/10.

Subtracting the fractions, 5/10 - 4/10 is 1/10 and subtracting the whole numbers, 4 - 2 is 2. So 4 and 1/2 - 2 and 2/5 is 2 and 1/10.

4 0
3 years ago
Write an equation that is parallel to the line y=3x-5 and passes through the point (-1,2)
ryzh [129]
Two lines with same slopes are parallel.
So The slope must be 3.
2=3(-1)+a
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6 0
3 years ago
Which dot plot has the least number of sites
shtirl [24]

The dot plot with the least number of sites has the least frequency

The dot plot has the least number of sites is the Shield Darter

<h3>How to determine the dot plot?</h3>

To determine the dot plot with the least number of sites, we simply calculate the total frequency of each dot plot

So, we have:

Shield Darter = 3 + 1 + 4 + 2 + 3 + 1 + 1

Shield Darter = 15

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Zebra Mussel = 1 + 3 + 2 + 5 + 1 + 1 + 2 + 3 + 2

Zebra Mussel = 20

Blue back Herring = 3 + 3 + 2 + 1 + 3 + 1 + 4

Blue back Herring = 17

From the computation above, the least frequency is

Shield Darter = 15

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Read more about dot plots at:

brainly.com/question/21862696

5 0
2 years ago
Find f. f ''(x) = −2 + 36x − 12x2, f(0) = 8, f '(0) = 18 f(x) =
Alik [6]
Integrate <span>f ''(x) = −2 + 36x − 12x2 with respect to x:

f '(x) = -2x + (36/2)x^2 - (12/3)x^3 + c.  Find c by letting x = 0 and using f(0)=8.

Then f '(0) = -2x + 18x^2 - 4x^3 + c = 18 (which was given).

Then             -0      + 0      - 0 + c = 18, so c = 18 and 

f '(x) = </span>-2x + 18x^2 - 4x^3 + 18.

Go through the same integration process to find f(x).
8 0
3 years ago
Two similar triangles are shown.
Stolb23 [73]

Answer:

the answer is B. 15

hope this helps

6 0
3 years ago
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