Answer:
Answer: 2x^2+11x+15 Coefficient of x is 11 and coefficient of x^2 is 2.
Step-by-step explanation:
(<em>x</em>+3)×(2<em>x</em>+5)=?
Use FOIL Method Foil stands for First Outer Inner Last
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<em>Step 1: </em>(<em>x</em>×2<em>x</em>)<em> </em> =2<em>x</em>^2 Multiply <u>First</u> Terms together (<em>x</em> and 2<em>x</em>)
<em>Step 2: </em>(<em>x</em>×5) <em> </em>=5<em>x</em> Multiply <u>Outer</u> terms together (<em>x </em>and 5)
<em>Step 3: </em> (3×2<em>x</em>) <em> </em>=6<em>x</em> Multiply <u>Inner</u> terms together (3 and 2<em>x</em>)
<em>Step 4: </em>(3×5) <em> </em>=15 Multiply <u>Last</u> terms together (3 and 5)
2x^2+5x+6x+15 Combine Like Terms
Answer: 2x^2+11x+15
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Answer:
No, it is not a valid way
Step-by-step explanation:
Required
Is Susie's method valid?
Susie's method worked because 4 & 7 and 3 & 5 do not have a common factor.
In other words, Susie's method will not work when the two numbers have a common factor.
Take for instance, the LCM of 2 and 4.
Using Susie's method, the LCM will be 8 (i.e. 2 * 4) whereas the LCM is 4.
63. The ratio 63:9 is equal to 21:3 because 3x3 is 9 and 21x3 is 63
The correct equation is m + 13 = a.
To solve this question, we need to figure out a pattern between the number of people attending in the morning and the number of people attending in the afternoon.
The first one:
37 - 24 = 13
Second one:
43 - 30 = 13
From this, we can see that our pattern is that the afternoon has 13 more people in attendance. Now we need to find the equation that shows that, and, like you circled, the correct answer is m + 13 = a.
Answer:
C ≈ 47.12389
Step-by-step explanation:
C = 2πr
r = 15/2
r = 7.5
C = 2π7.5