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Aleks [24]
4 years ago
8

24.5×3.2 what is the answer​

Mathematics
2 answers:
yanalaym [24]4 years ago
4 0

Answer:

78.4

Step-by-step explanation:

count how many decimal places you have. solve the problem without the decimal places. add them back in the end.

Tasya [4]4 years ago
3 0

Answer:78.4

Step-by-step explanation:

remove decimal points and multiply 245 x

32 = 7840 add the decimal points 78.4

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Mademuasel [1]
The answer is 100 because 5(20) equals 100
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the front of a podium is in the shape of a trapezoid with base lengths 4 and 8.5 feet. the height is 2 feet. a gallon of paint c
Stels [109]
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3 years ago
Express 5√72 in simplest radical form.
Novosadov [1.4K]

Answer:

30*sqrt(2)

Step-by-step explanation:

5*sqrt(72)=5*sqrt(36*2)=5*6*sqrt(2)=30*sqrt(2)

8 0
3 years ago
Solve using a formula. Please don't guess, I would like professionals to take a look
Marianna [84]

<u>Let's take this problem step by step</u>:

<u>What we know:</u>

 x+y=4\\xy=-2

<u>Before we solve, let's do one thing that will help us out greatly later down the road</u>:

 x+y=4\\(x+y)^2=4^2\\x^2+2xy+y^2=16\\x^2+2(xy)+y^2=16\\x^2+2(-2)+y^2=16\\x^2+4+y^2=16\\x^2+y^2=20<---<em> useful equation</em>

<u>Let's rearrange the problem a little bit:</u>

 x+\frac{x^3}{y^2}+\frac{y^3}{x^2}  +y=\frac{x^3}{x^2} +\frac{x^3}{y^2}+\frac{y^3}{x^2}+\frac{y^3}{y^2}

<u>Combine fractions of common denominators</u>:

\frac{x^3+y^3}{x^2} +\frac{x^3+y^3}{y^2} =(x^3+y^3)*(\frac{1}{x^2}+\frac{1}{y^2}  )

<u>Now's let factor everything apart</u>:

 (x^3+y^3)=(x+y)(x^2-xy+y^2)\\\\\frac{1}{x^2}+\frac{1}{y^2}  =\frac{x^2+y^2}{x^2y^2}

<u>Let's use what we know and our </u><u><em>useful equation</em></u>:

 (x+y)*(x^2-xy+y^2)*(\frac{x^2+y^2}{x^2y^2} )\\=4*(x^2+y^2-xy)*(\frac{20}{(xy)^2} )\\=4*(20-(-2))*\frac{20}{(-2)^2} \\=4*22*5\\=440

The value is 440

<u>Answer: 440</u>

Hope that helps!

#LearnwithBrainly

6 0
2 years ago
What is 9 x (8 + 5) - 3?<br> Also please read the comments, please.
RideAnS [48]

Answer:

it is 114

Step-by-step explanation:

you do distributive property and since there’s no number it counts as a 1 so then you had 8+5 and you get 13 then you times that by 9 then subtract that answer with 3.

6 0
2 years ago
Read 2 more answers
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