3 years ago

Any answers? Please I’m really struggling.

Mathematics

2 answers:

vampirchik [111]3 years ago

7 0

You might have too look it up better and practice more

Lelu [443]3 years ago

3 0

Answer:

if youre just trying to factor 3x^3 + 27x

then it's 3x(x^2 + 9)

You might be interested in

Consider this equation.

AnnyKZ [126]

Answer:

I know u saw me before but the answer is B hope it helps! =)

7 0

2 years ago

Suppose that a sample of size 100 is to be drawn from a population with standard deviation L0. a. What is the probability that t

NARA [144]

Answer:

The probability that the sample mean will lie within 2 values of μ is 0.9544.

Step-by-step explanation:

Here

the sample size is given as 100
the standard deviation is 10

The probability that the sample mean lies with 2 of the value of μ is given as

$P(| \bar{X}-\mu|$

Here converting the values in z form gives

$P(-2$

Substituting values

$P(-2$

From z table

$P(z\leq 2)=0.9772\\P(z\leq -2)=0.0228\\P(-2\leq z\leq 2)=P(z\leq 2)-P(z\leq -2)\\P(-2\leq z\leq 2)=0.9772-0.0228\\P(-2\leq z\leq 2)=0.9544\\$

So the probability that the sample mean will lie within 2 values of μ is 0.9544.

5 0

3 years ago

Tia performed an experiment where she flipped a coin 200 times. The coin landed heads up 92 times and tails up 108 times. Which

11111nata11111 [884]

only the first statement is true - it is the experimental probability. the rest is incorrect: the ratio is not the number of trials; the theoretical probability should be 0.5 (for unbiased coins); ratio never represents a number of occurences.

4 0

3 years ago

Read 2 more answers

Ignore my 1st one!<br> Find the value of x.

elixir [45]

12^2+x^2=15^2
144+x^2=225
- 144 -144
=81= 9
X=9

7 0

2 years ago

Read 2 more answers

I need helpPlease and Fast!<br><br> What is the distance between (-3, -2) and (5, 4)?

nexus9112 [7]

Using the Pythagorean Theorem, we can tell that there is 10 units between the two points.

7 0

3 years ago