Please use " ^ " to denote exponentiation: <span>y=x^2+5x−7.
Borrow "x+5" from the first equation and replace y in the second with that:
x+5 = x^2 + 5x - 7. Then x^2 + 5x - 7 - x - 5 = 0, or x^2 + 4x -12 = 0.
This is easily factored: (x-2)(x+6)=0, so that x=2 and x=-6.
Using y = x+5, find y for x=2 and then y for x=6.</span>
Answer:
18 widgets
Step-by-step explanation:
3 x 8 = 18 widgets
<h3>I'll teach you how to solve h-(-2.22)=-7.851</h3>
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h-(-2.22)=-7.851
Apply rule:
h+ -2.22=-7.851
Subtract 2.22 from both sides:
h+ -2.22-2.22 =-7.851-2.22
Simplify:
h= -10.071
Your Answer Is h= -10.071
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For the answer to the question above, you will find probabilities for continuous r.v.'s like P(a < X < b) you just find the area under the density curve (what you have called the distribution). In this case, that's finding the area of a rectangle which means that if you can calculate sq ft for carpeting, you can do this problem.
For example,
<span>e) (0.76 - 0.23)*1 = 0.53
</span>
For this problem t<span>he answer is the area above the interval:
eg. the probability of a) is 0.4 x height or 0.4 x 1 = 0.4. </span>
I hope I helped you with my answer
Answer:
-2
Step-by-step explanation: