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Lelu [443]
3 years ago
5

Please help find area !

Mathematics
1 answer:
11111nata11111 [884]3 years ago
4 0

Answer:

33.32

Step-by-step explanation:

<h2><u>can use cross multiplication </u></h2>

20 : 34

19.6 : x

20x = 19.6 * 34

20x = 666.4

x= 666.4/20

x=33.32

<u>area = 33.32 </u>

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1 over 4a = 2 over 3. Which of the following equals a in this equation?
dlinn [17]

Answer:

3/8

Step-by-step explanation:

The equation is given as:

1/4*a=2/3

We can simply the equation by getting rid of the denominators which is 4a and 3. Therefore we can multiply both sides with 3*4*a:

(1/4*a)3*4*a=(2/3)*3*4*a

On the left hand side 4a cancels with 4a and on the right hand side 3 cancels with 3. We are left with:

3=2*4*a

∴ After simplying

a=3/8

4 0
3 years ago
2x - 4<br> 5<br> = 4<br> What does x equal
marysya [2.9K]

Answer:

x=20, please confirm as problem layout is incorrect.

Step-by-step explanation:

I’m going to assume that this means 2/5x-4=4

You get 2/5x=8

X=20

5 0
3 years ago
Read 2 more answers
Given that P(x)=2x²+5x-5
IRISSAK [1]

Answer:

(i) P(\frac{1}{2}) = 2*(\frac{1}{2})^2 + 5*\frac{1}{2} -5

          =\frac{1}{2} +\frac{5}{2} -5\\\\=3-5 = -2

(ii) P(3) - Q(2) = 2(3^2)+5(3)-5 -[4(2^2) +3(2) +2]

                       = 18 + 15 -5 -16-6-2= 28-24 =4

(iii) P(x)\cdot Q(x) = (2x^2+5x-5)(4x^2-3x+2)

                      =2x^2(4x^-3x+2) +5x(4x^2-3x+2)-5(4x^2-3x+2)\\\\=8x^4 -14x^3 -11x^2 -10x-20x^2+15x-10\\\\=8x^4 - 14x^3 -31x^2 +5 -10

(iv) P(x) + Q(x) = 2x^2 +5x -5 + 4x^2 -3x +2

                         = 6x^2 +2x -3

3 0
3 years ago
A study has shown that the daily amount of milk produced by a dairy cow is
8090 [49]

Answer:

A

Step-by-step explanation:

this is more of a mind game.  Lots of words to throw you off.  Daily a cow produces a mean of 6.2 gallons (average of 6.2 gallons, meaning they already found the mean, "averaged" it out for you) with a deviation of .7 gallons ("give or take" .7 gallons).  On any given day (throw these words out) 68% of the cows (don't need this information to answer the question either, thrown in to confuse you) will produce an amount of milk within which of the following ranges?  Just subtract the deviation ("give or take number") .7 gallons from the mean (average (already determined)) 6.2 gallons which is 5.5 gallons THEN add the deviation ("give or take number") .7 gallons to the mean (average (already determined)) 6.2 gallons which is 6.9 gallons.  Your answer is A 5.5 gallons to 6.9 gallons.     You don't even have to go crazy on the math on this question you can rule them all out but A immediately with subtracting .7 from 6.2.  Mind games .... LOL sneaky.  

6 0
3 years ago
Find the slope of the line ​
Tanya [424]

Answer:

2

Step-by-step explanation:

(6,10) (2,2)

2-10=-8

2-6=-4

4 0
3 years ago
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