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2 years ago

What is the 20th term of the sequence 2n-5? I need help.

Mathematics

2 answers:

Dafna11 [192]2 years ago

6 0

Answer: 35

Step-by-step explanation: substitute 20 into n,

2(20)-5

40-5

Mandarinka [93]2 years ago

4 0

Answer should be 35 for you

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A local charity believes they receive more money from people in the Chevy Chase area than from people in the Alexandria area of

kaheart [24]

Answer: The critical value of the test is 2.807.

Step-by-step explanation:

Since we have given that

n = 24

So, the degree of freedom v = n-1 = 24 - 1=23

Since, n>30, so we will use 't-test'.

Here, α = 0.01

so, According to t-table, we get that

$t_{\alpha ,v}=t_{0.01,23}=2.807$

If we take α, then we are taking about two tail test.

If we take $\dfrac{\alpha }{2}$ then we are talking about one tail test.

But in both the cases, the result will be same.

Hence, the critical value of the test is 2.807.

7 0

4 years ago

Dexter wrote the expression n × n × n × n, and Ellie wrote an equivalent expression in terms of n. What is the value of Ellie’s

djverab [1.8K]

Plug in 5 for n so it would be 5×5×5×5=
C.) 625

6 0

3 years ago

Determine the Coordinate represented in the Table of Values. ch on at 2 7 9 6 3 5 una) f(9) = 5b) f(5) = 9c) f(5, 9) = 14d) f(9,

Vaselesa [24]

Given the table:

x f(x)

2 6

7 3

9 5

To determine the coordinate given in the table, we have the following:

f(2) = 6

f(7) = 3

f(9) = 5

From the answer choices, the only coordinate given is:

f(5) = 9

ANSWER:

f(9) = 5

4 0

1 year ago

How does a chicken kill a wolf?

Sliva [168]

Salmonella I'm thinking.

8 0

3 years ago

Can I have some help?

lisabon 2012 [21]

Answer:

$x = \sqrt{58}$

Step-by-step explanation:

first, you should draw a line to separate the triangle from the rectangle

You can get the height if the triangle by saying 16-9

This will give you 7

The base of the triangle is 3 because the opposite side is given and the opposite sides of a rectangle are equal

Now that we have the measurements of the triangle we can use the Pythagorean theorem

${c}^{2} = {a}^{2} + {b}^{2}$

${x}^{2} = {7}^{2} + {3}^{2}$

${x}^{2} = 49+ 9$

${x}^{2} = 58$

$x = \sqrt{58}$

3 0

3 years ago