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qaws [65]
3 years ago
15

X and y interpects of f(x)=x^2-49

Mathematics
1 answer:
Oxana [17]3 years ago
5 0
Y intercept is when x = 0
X intercept is when y = 0

Y intercept is 0^2 - 49 = ?
-49

X intercept you would have to factor. You’d get (x-7)(x+7) meaning the graph touches o at the x values 7 and -7
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Ya'll FR get 50 points if you answer this.
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In a​ study, 36​% of adults questioned reported that their health was excellent. A researcher wishes to study the health of peop
steposvetlana [31]

Answer:

0.3907

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Now we are supposed to find the probability that when 11 adults are randomly​ selected, 3 or fewer are in excellent health.

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P(x\leq 3)=\frac{11!}{1!(11-1)!} (0.36)^1 (0.64)^{11-1}+\frac{11!}{2!(11-2)!}  (0.36)^2 (0.64)^{11-2}+\frac{11!}{3!(11-3)!} (0.36)^3 (0.64)^{11-3}

P(x\leq 3)=0.390748

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5 0
3 years ago
What expression is equivalent to 14/15
jonny [76]

Answer:

2/3 divided by 5/7

Step-by-step explanation:

2/3 divided by 5/7 equals 14/15

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