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3 years ago

Find an explicit rule for the nth term of the sequence. 7, -7, 7, -7, ...

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

6 0

Try $a_n=7(-1)^{n+1}$ , where $n\ge1$ .

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8 7 / 8 + 9 13 / 16 what is this in a mixed number.

FinnZ [79.3K]

Answer:

18 and 11/16

Step-by-step explanation:

I converted the two numbers into improper fractions which leaves me with

71/8+157/16

I thenn made sure I had common denominators, which means I need to multiply the first number by 2/2 and I'm left with:

142/16+157/16

I can now add the 2 numbers together and I get:

299/16

now we just need to convert the number into a mixed number by dividing, and I am left with:

18 and 11/16

5 0

2 years ago

Of the 13 people who have taken their seats at a seminar, 5 have red hair. What is the experimental probability that the next pe

trapecia [35]

Answer:

5/13

Step-by-step explanation:

P(red) =

red

total

7 0

2 years ago

Read 2 more answers

4. Answer the question below using complete sentences. * Rae made a table of x and y values. The relationship between the x and

Elden [556K]

Answer:

Any of x = {-3, 5, -1, 0}

Step-by-step explanation:

Since the relationship in the table is not a function, Rae could put any values for x that is already in the table.

x = -3, 5, -1, 0

This will result in repeat of x-values with different corresponding y-values.

4 0

2 years ago

Roughly estimate the volume of a tennis ball in cubic cm by using 6 cm for diameter and 3 for pi. round the answer to the neares

galben [10]

The volume of ball is 113.04 cubic centimeter

Solution:

Given that we have to find the volume of tennis ball

Since the ball is of sphere shape, we can use the sphere formula

The volume of sphere is given by formula:

$V = \frac{4}{3} \times \pi \times r^3$

Where, "V" is the volume and "r" is the radius

Given that,

Diameter = 6 cm

Therefore,

$Radius = \frac{diameter}{2}\\\\Radius = \frac{6}{2}=3$

Substituting in formula, we get

$V = \frac{4}{3} \times 3.14 \times 3^3\\\\V = 4 \times 3.14 \times 3^2\\\\V = 12.56 \times 9\\\\V = 113.04$

Thus volume of ball is 113.04 cubic centimeter

3 0

2 years ago

If the 4th and 7th terms of a geometric sequence are 75 and 600, what is the first term?

Anika [276]

Answer:

probably 8 lol

Step-by-step explanation:

i just did 600/75 sorry if it's wrong

3 0

2 years ago