3 years ago

Which of the following solutions solves the system?

Mathematics

1 answer:

gavmur [86]3 years ago

5 0

Answer:

i think its

Step-by-step explanation:

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Question 9 20% of a particular brand of light bulbs fail in one year. What is the probability that three bulbs out of a random c

Delvig [45]

Answer:

The correct answer is 0.15

Step-by-step explanation:

According to the given scenario, the probability is as follows:

X $\sim$ Bin (n,p)

Here

n = 8

p = 0.20 or 20%

Now this is a binomial probability distribution

$P(X) = ^nC_x \times p^x \tmes (1 - p)^{n-x}\\\\P(3) = ^8C_3 \tims 0.20^3 \times (1 - 0.20)^5$

= 0.15

Hence, the correct answer is 0.15

5 0

3 years ago

Which ordered pair (x,y) satisfies the system of equations shown below? 2x-y=6 x+2y=-2 A) (-6,2) B) (-2,2) C)(2,-2) D) (4,2)

Nastasia [14]

Answer:

(-6,2) is the answer

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Luis wants to buy a skateboard that usually sells for $79.08. All merchandise is discounted by 12%. What is the total cost of th

FrozenT [24]

Answer:

$74.96

Step-by-step explanation:

$79.80 × 0.12 = 9.576 (discount)

$79.80 - $9.576 = $70.224

$70.224 × 0.0675 = 4.74012 (add for sales tax)

$70.224 + $4.74012 = $74.96412

8 0

3 years ago

- 2x (a+h)^2+4(a+h)-12

hjlf

That’s the answer mama

7 0

3 years ago

Please help and explain how to do this. thank you in advance!

Sholpan [36]

We want to solve
$3e^{2x}+5=27$

Subtract 5 from each side.
$3e^{2x}=22$
Divide each side by 3.
$e^{2x}=7.3333$
Take natural logs of each side.
$2x=ln(7.3333)=1.9924$
Divide each side by 2.
x = 0.9962

Answer: x = 0.996 (nearest thousanth)

6 0

3 years ago