3 years ago

Which values for n will make this expression true?

Mathematics

2 answers:

Alborosie3 years ago

4 0

Answer: a

Step-by-step explanation:

zavuch27 [327]3 years ago

3 0

A because it rounds up

You might be interested in

The following table shows the probability distribution for a discrete random

denis23 [38]

Answer:

Option C. 29.47

Explanation:

The expected value, E(X) or mean of a discrete random variable is given by:

$E(X)=\sum\limits^n_i {x_i}\cdot P(x_i)$

Using the data from the table:

$E(X)=22\times 0.16+24\times 0.09+25\times 0.18+30\times 0.12+33\times 0.24+37\times 0.21$

Computing:

$E(X)=3.52+2.16+4.50+3.60+7.92+7.77=29.47$

4 0

4 years ago

Read 2 more answers

Help i need to find what the surface area of the piramid is excluding the base

Alex17521 [72]

SA = 1/2 Pl + B ; P(perimeter of base) , l(slant height) , B(area of base)
= 1/2 (4)(8) (6) + 8^2
= 1/2 (32)(6) + 64
= 96 + 64
= 160

letter D :)))

6 0

3 years ago

What is the answer to -10-(-8)/4

zhuklara [117]

The answer to your question is: -1/2

3 0

4 years ago

Read 2 more answers

Evaluate the geometric series. Please help me!!

o-na [289]

Answer:

- 85

Step-by-step explanation:

The n th term of a geometric series is

$a_{n}$ = a $(r)^{n-1}$

where a is the first term and r the common ratio

1 $(-2)^{n-1}$ ← is the n th term of a geometric series

with a = 1 and r = - 2

The sum to n terms of a geometric series is

$S_{n}$ = $\frac{a(r^{n}-1) }{r-1}$

= $\frac{1((-2)^{8}-1 }{-2-1}$

= $\frac{256-1}{-3}$

= $\frac{255}{-3}$

= - 85

6 0

3 years ago

What is the missing length

ruslelena [56]

3.5 (give Brainliest)

4 0

3 years ago