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ICE Princess25 [194]
3 years ago
7

Which graph represents the function?

Mathematics
2 answers:
garri49 [273]3 years ago
6 0
Photomath is good for this type of thing
attashe74 [19]3 years ago
6 0
F(x) is undefined for x = -7. Simplifying it does not change that.

f(x) = (x +7)(x -7)/(x +7)
f(x) = x -7 . . . . . . . . . . . . . . x ≠ -7

The graph will be a line with a slope of 1 and a y-intercept of -7. It will have a "hole" at (-7, -14).

The lower-left selection is appropriate.
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Assume that there are 22 frozen dinners: 12 pasta, 6 chicken, and 4 seafood dinners. The student selects 5 of them. What is the
Stells [14]

Since, there are 22 frozen dinners. Out of these, 22 are pasta, 6 chicken and 4 seafood dinners.

We have to determine the probability that at least 2 of the dinners selected are pasta dinner. At least 2 of the dinners selected are pasta, it means that there can be 2 pasta, 3 , 4 or 5.

So, Probability with at least 2 of dinners

= \frac{(^{12}C_{2} \times ^{10}C_{3})+ (^{12}C_{3} \times ^{10}C_{2})+(^{12}C_{4} \times ^{10}C_{1})+(^{12}C_{5})}{^{22}C_{5}}

We will use the combination formula, which states ^nC_r = \frac{n!}{r! (n-r)!}

= \frac{(66 \times 120)+(220 \times 45)+(495 \times 10)+(792)}{26334}

=\frac{7920+9900+4950+792}{26334}

= \frac{23562}{26334}

= 0.894

=0.90

Therefore, the probability that at least 2 of the dinners selected are pasta is 0.90

3 0
3 years ago
I need to find measure of angle "u" m
Phoenix [80]
Can you take a better Pic? I can’t see the values.
7 0
3 years ago
You are the administrator of an annual essay contest scholarship fund. This year a $90,000 college scholarship is being divided
Vinil7 [7]

Answer:

Runner-up: $15,000

Winner: $75,000

Step-by-step explanation:

Let's create an equation for this problem.

Let x=the amount the runner-up receives

Let 5x=the amount the winner receives

Then,

x+5x=90,000

6x=90,000

x=15,000

5x=75,000

3 0
3 years ago
Ten times the square root of a nonzero number is equal to forty times the number
NeX [460]
Hello : 
let : x this number 
 10√x = 40 x ..... x <span>> 0
</span>√x = 4 x  and : x > 0
(√x )²= (4 x)²  and : x > 0
x = 16 x²   ....x > 0 : i'can simplifiy by : x 
1 =16x
x = 1/16

7 0
3 years ago
⚠️⚠️⚠️GIVING AWAY HUGE POINTS FOR ANYONE WHO COMPLETES THIS AND GETS THEM RIGHT!!!!!!!⚠️⚠️⚠️
Firlakuza [10]
1st picture

The average speed for his journey from York to Blackpool is 61.4 KM/H



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