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4 years ago

If n is a term of the sequence 2,5,8,11,..., which expression would give the value of n?

Mathematics

2 answers:

Wittaler [7]4 years ago

5 0

The term of the sequence is eleven 11

Elina [12.6K]4 years ago

4 0

First Find the difference between the numbers, in this case it's 3, then multiply it by n, so first you have 3n. Now, subtract this number from the first term, and put it on the end of your equation. Here we get -1. So the answer is 3n-1

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Solve the equation for z and approximate the value of z <br> 0.5*e^4z =13

frutty [35]

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3 years ago

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anygoal [31]

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4 0

3 years ago

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El productor del números es 28. Sabiendo que el primer número es 3 unidades menor que el segundo, calcula los dos número

Rasek [7]

Answer:

Tienes 3 números, "x", "y", "z"

=> El primero es 20 unidades menor que el segundo:

El primero es "x", y el segundo es "y", entonces:

x = y - 20

=> El tercero es igual a la suma de los dos primeros:

El tercero es "z", entonces:

z = x + y

z = (y - 20) + y

z = 2y - 20

=> Entre los tres suman 120

x + y + z = 120

y - 20 + y + 2y - 20 = 120

4y - 40 = 120

4y = 160

y = 40

Si y = 40, entonces:

x = y - 20

x = 20

Además, z = 2y - 20

z= 60

RPTA:

x=20

y=40

z=60

Step-by-step explanation:

8 0

4 years ago

Twenty-three percent of automobiles are not covered by insurance (CNN, February 23,2006). On a particular weekend, 35 automobile

Bingel [31]

Answer:

Step-by-step explanation:

Given that twenty-three percent of automobiles are not covered by insurance (CNN, February 23,2006).

considering the total number of vehicles, probability for a randomly drawn vehicle not covered by insurance = 0.23

Each vehicle can be treated as independent of the other

Hence X no of vehicles not covered by insurance is Binom with n = 35 and p - 0.23

a) the expected number of these automobiles that are not covered by insurance=E(x) =

$np = 35(0.23)\\= 8.05$

b) the variance

= $npq = 8.05(0.77) \\=6.1985$

Std dev = square root of variance = 2.4897

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3 years ago

What is the average rate of change in f(x) over the interval [4,13]?

mestny [16]

we know that

Average Rate of Change. is the change in the y-value divided by the change in the x-value for two distinct points on the graph

$A=\frac{(f(b)-f(a))}{(b-a)}$

in this problem

$a=4\\ b=13\\ f(a)=f(4)=8\\ f(b)=f(13)=11$

substitute the values in the formula above

$A=\frac{(11-8)}{(13-4)} \\ \\ A=\frac{3}{9}$

Divide by $3$ both numerator and denominator

$A=\frac{1}{3}$

therefore

the answer is

$\frac{1}{3}$

8 0

3 years ago

Read 2 more answers