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Gwar [14]
3 years ago
5

Find the 9th term of the sequence described by: A(n)=7+(n-1)(3)

Mathematics
1 answer:
Zigmanuir [339]3 years ago
3 0
I think this is how you do it.

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choose all properties that were used to simplify the following problem: step 1 2/7 • 53 • 7/2 step 2 53 • 2/7 • 7/2step 3 53 • 1
den301095 [7]
Step 2: commutative property of multiplication
Step 3: multiplicative inverse
Step 4: multiplicative identity
5 0
3 years ago
Read 2 more answers
Let z denote a random variable that has a standard normal distribution. Determine each of the probabilities below. (Round all an
Lorico [155]

Answer:

P(Z < 2.37) = 0.9911.

Step-by-step explanation:

We are given that Let z denote a random variable that has a standard normal distribution.

Let Z = a random variable

So, Z ~ Standard Normal(0, 1)

As we know that the standard normal distribution has a mean of 0 and variance equal to 1.

                          Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = mean = 0

           \sigma = standard deviation = 1

Now, the probability that z has a value less than 2.37 is given by = P(Z < 2.37)

        P(Z < 2.37) = P(Z < \frac{2.37-0}{1} ) = P(Z < 2.37) = 0.9911

The above probability is calculated by looking at the value of x = 2.37 in the z table which has an area of 0.9911.

4 0
3 years ago
Please help me Algebra 1
Oduvanchick [21]

Answer:

a.  \sqrt{x^n} = x^\frac{n}{2}

b. \sqrt{x^n}  = x^\frac{(n-1)}{2}\sqrt{x}

Step-by-step explanation:

a) When <em>n </em>is even, then it is divisible by 2. Because of this, you can write:

  • \sqrt{x^n} = (x^n)^\frac{1}{2}
  • \sqrt{x^n} = x^\frac{n}{2}

b) When <em>n </em>is odd, then <em>n - 1 </em> is even. This would make it divisible by 2, and there would be a remainder of 1, so we can write:

  • \sqrt{x^n} = (x^n^-^1^+^1) ^\frac{1}{2}
  • \sqrt{x^n} = (x^n^-^1 × x)^\frac{1}{2}
  • \sqrt{x^n} = x^\frac{(n-1)}{2} × x^\frac{1}{2}
  • \sqrt{x^n}  = x^\frac{(n-1)}{2}\sqrt{x}
8 0
3 years ago
Read 2 more answers
2x<img src="https://tex.z-dn.net/?f=2x%5E2%2B3x-9" id="TexFormula1" title="2x^2+3x-9" alt="2x^2+3x-9" align="absmiddle" class="l
Juliette [100K]

the answer will equal about 3,053

3 0
3 years ago
Suppose a - b = 0a−b=0a, minus, b, equals, 0. Which one of these expressions equals a+ba+ba, plus, b?
Lelu [443]
First we have the following equation:
 a - b = 0
 We clear one of the variables depending on the other:
 a = b
 Therefore we have to for the following expression:
 a + b
 We can substitute one of the variables, obtaining:
 a + a = 2a
 Equivalently:
 b + b = 2b
 Answer:
 
a + b = 2a
 
or
 
a + b = 2b
6 0
3 years ago
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