F. 30 is the correct answer, for mean you just have to add all the ages together and divide by the number of customers
A) The dimensions are (x+10) by (x+10).
B) The perimeter is given by 4x+40.
C) The perimeter when x is 4 is 56.
The quadratic can be factored by finding factors of <em>c</em>, the constant, that sum to <em>b</em>, the coefficient of <em>x</em>. Our <em>c</em> is 100 and our <em>b</em> is 20; we want factors of 100 that sum to 20. 10*10=100 and 10+10=20, so those are what we need. This gives us (x+10)(x+10 for the factored form.
Since the dimensions are all (x+10), and there are 4 sides, the perimeter is given by 4(x+10). Using the distributive property we have 4*x+4*10=4x+40.
To find the perimeter when <em>x</em>=4, substitute 4 into our perimeter expression:
4*4+40=16+40=56.
Is it -25%. I’m guessing. I’m not sure if that is correct.
should be placed<u> in-between 3 and 4</u> on the number line (a little bit approaching number 4). The cube root of 49 is 6.66. Therefore, <em>it shouldn't be placed on number 7.</em>
. Probably, she missed the number 3. It was actually asking for the<em> cube root of 49</em>. This is also the reason why she placed the dot on the number 7 because the<em> square root of 49 is 7</em>.