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Rashid [163]
3 years ago
5

2/3 x-4 = -2A -3 B -4C -9D 3​

Mathematics
1 answer:
Luden [163]3 years ago
5 0

Answer:

i think its d

Step-by-step explanation:

cause i solved it and got the same answer

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On a vacation in Puerto Rico, Rose jumped off a cliff into a river in EL Yunque Forest Reserve. Her height as a function of time
Nonamiya [84]
H(t) = -16t² + 16 t + 480

Factor out -16
-16(t² - t - 30) 
t² - t - 30 
(t + 5)(t - 6) ⇒ t(t-6) + 5(t-6) ⇒ t² -6t + 5t - 30 ⇒ t² - t - 30

t + 5 = 0           t - 6 = 0
t = -5                t = 6

The value of t is either -5 or 6 however time can't be measured in negative form; then, it took Rose 6 seconds to hit the water.


3 0
3 years ago
Sam intends to roll a six sided cube 100 times. What is the probability model he can use to predict whether or not each roll wil
bekas [8.4K]

The outcomes of rolling fair six sided die is \{1,2,3,4,5,6\}. The prime numbers in the above outcomes are \{2,3,5\}. The probability of not rolling a prime number is p=\frac{3}{6}= 0.5.

Each trial is independent.

In the given experiment of 100 trials, the binomial probability model can be used to predict the number of occurrence of non-prime numbers (X). The probability mass function is

P(X=x)=C(100,x)p^x(1-p)^{100-x},x=0,1,2,3,...,100. Since p=0.5,1-p=0.5

P(X=x)=C(100,x)0.5^x(0.5)^{100-x},x=0,1,2,3,...,100 \\ P(X=x)=C(100,x)(0.5)^{100},x=0,1,2,3,...,100

8 0
3 years ago
Read 2 more answers
What is 5% added to $194?
leva [86]

Answer:

203.7

Step-by-step explanation:

5% of 194 added to 194 =

= 5% * 194 + 194

= 0.05 * 194 + 194

= 9.7 + 194

= 203.7

6 0
3 years ago
What is the decimal multiplier to decrease by 3.9%?<br><br> Answer: 0.961
luda_lava [24]

Answer:

Answer is right!

Step-by-step explanation:

Have a nice day!

5 0
2 years ago
Factor completely 8x2-4x-84
mr_godi [17]

Answer: 4 • (2x - 7) • (x + 3)

Step-by-step explanation:

(4x+12)(2x-7)

8x²-28x+24x-84

8x²-4x-84

5 0
3 years ago
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