Answer:
H) 320 square units for the surface area
Step-by-step explanation:
20(5.2+5.25+4.5) + 2(1/2(4*5.25)) = 320
Answer:
Step-by-step explanation:
we have
step 1
Convert mixed number to an improper fraction
step 2
Substitute in the expression above and find the sum
Convert to mixed number
The first term is, <span> <span>x2</span> </span> its coefficient is <span> 1 </span>.
The middle term is, <span> -3x </span> its coefficient is <span> -3 </span>.
The last term, "the constant", is <span> -70 </span>
Step-1 : Multiply the coefficient of the first term by the constant <span> <span> 1</span> • -70 = -70</span>
Step-2 : Find two factors of -70 whose sum equals the coefficient of the middle term, which is <span> -3 </span>.
<span><span> -70 + 1 = -69</span><span> -35 + 2 = -33</span><span> -14 + 5 = -9</span><span> -10 + 7 = -3 That's it</span></span>
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -10 and 7
<span>x2 - 10x</span> + 7x - 70
Step-4 : Add up the first 2 terms, pulling out like factors :
x • (x-10)
Add up the last 2 terms, pulling out common factors :
7 • (x-10)
Step-5 : Add up the four terms of step 4 :
<span>(x+7) • (x-10)</span>
Answer:
<em>8 adults</em>
Step-by-step explanation:
1.) $78 - $6 = $72
2.) $72/$9 = 8