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fredd [130]
3 years ago
12

What is the exponents laws

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
6 0
Laws<span> of </span>Exponents<span>. </span>Exponents<span> are also called Powers or Indices. The </span>exponent<span> of a number says how many times to use the number in a multiplication. In this example: 8</span>2<span> = 8 × 8 = 64. In words: 8</span>2<span> could be called "8 to the second power", "8 to the power 2" or simply "8 squared"</span>
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How do you graph it on a line
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8 0
3 years ago
Find two consecutive positive integers such that the sum of their squares is 421 .
maria [59]
We assume the two numbers are x and (x+1)
so x^2+(x+1)^2=421
x^2+(x^2+2x+1)=421
2x^2+2x-420=0
According to the formula of quadratic 
x=14 or-15
cuz we know the two numbers are integers
so x=14
therefore the other number is 15
To make sure that's correct
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Hope that helps you!!


4 0
3 years ago
PLEASE HELP!!!! 25 POINTS!!!!
Andrei [34K]

Answer:

0.9562

Step-by-step explanation:

Binomial probability is mathematically expressed as:

P(X=x)={n\choose x}p^x(1-p)^{n-x}

Given that p=0.18, n=5 ,  is calculated as:

P(X\leq 2)=P(0)+P(1)+P(2)\\\\={5\choose 0}0.18^0(1-0.18)^5+{5\choose 1}0.18^1(1-0.18)^4+{5\choose 2}0.18^2(1-0.18)^3\\\\=0.3707+0.4069+0.1786\\\\=0.9562

Hence, the probability of no more than 2 successes in 5 trials is 0.9562

4 0
3 years ago
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