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Effectus [21]
3 years ago
11

Evaluate the following when a = 4 and b = 7 (a+b)^2 - (a^2 + b^2)

Mathematics
2 answers:
Vaselesa [24]3 years ago
8 0

Answer:

56

Step-by-step explanation:

(4+7)²-(4²+7²)=121-65

                     =56

emmainna [20.7K]3 years ago
8 0

Answer:

56

Step-by-step explanation:

(4 + 7)² - (4² + 7²)  =  11² - (16 + 49)  =  121 - 65  =  56

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Convert: 15°C to °F<br><br> -9<br> -31<br> 59<br> 164
Anton [14]
15 is 59
-9 is 15.8 so 16
-31 is 28.8 so 29
59 is 138.2
164 is  327.2


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The sum of 2 numbers is 10,and there product is 24 what are these 2 numbers ?
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Little help ?please 5 points
Eduardwww [97]

Answer:

I Think E But Im Not Sure About It

3 0
3 years ago
Please help i'm taking a test, and when you get the answer please explain how you got it!!
Aleonysh [2.5K]

<u>Answer:</u>

y = 122.57

<u>Explanation:</u>

y = 143 when x = 49

Y varies directly with x, so the equation is --> y = kx (k would be the constant of variation).

k = y/x = 143/49

y = (143/49) x

When x = 42 --> y = (143/49) · 42 --> y = 2.92 · 42 --> y = 122.57

6 0
3 years ago
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