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3 years ago

Is there anyone really good at math

Mathematics

2 answers:

shusha [124]3 years ago

6 0

Just in advance ,not very good at it

SashulF [63]3 years ago

4 0

Well, I got a 800 on my SAT in Math, and a 36 on ACT math, so I guess you could say I am pretty good for a 13-year-old

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BRAINLIEST!!<br> 9. Describe the shape of the data distribution.

Umnica [9.8K]

Answer:

positive skewed

this is correct.

3 0

3 years ago

In the U.S., 95% of children have received their DTaP vaccine. Calculate the probability that fewer than 700 out of a sample of

Studentka2010 [4]

Answer:

0.0183

Step-by-step explanation:

The percentage of students, who received their DTaP vaccine is 95%.

This implies that:

$p = 0.95$

and

$q = 1 - 0.95 = 0.05$

The standard deviation of the proportion is

$= \sqrt{ \frac{pq}{n} }$

$= \sqrt{ \frac{0.95 \times 0.05}{750} } \\ = 0.00796$

We want to find the probability, that the sample proportion,

$\hat p \leqslant \frac{700}{750} \\ \hat p \leqslant 0.9 \bar3$

$P(\hat p\le0.9\bar3)=P(Z\le \frac{0.9 \bar3 - 0.95 }{0.00796} ) \\ = P(Z\le - 2.09) \\ = 0.0183$

5 0

3 years ago

The range of f(x) = 3x + 1.1 is {16.1, 19.1, 25.1). What is the domain?

givi [52]

Answer:

It’s A. (5,6,8)

4 0

3 years ago

PLEASE HELP

almond37 [142]

Answer:

x + 6y = -3

Step-by-step explanation:

Explained in the paper.

8 0

3 years ago

A mole of 1 gallon cans of paint could cover every square inch of the surface of how many planets the size of the earth?

Nady [450]

Answer:

The answer is $4.4*10^1^0 planets$

Step-by-step explanation:

We ll have to find more information first to solve this question.

1. One mole = 6.022 x 10^23

Assuming one gallon of paint covers the 400 sq ft of area.

Thus total area which can be covered by 1 mole of gallon is

$=6.022*10^2^3 * 400\\=2.40*10^2^6$

2. Now we will find the surface area of earth

$Area = 4\pi R^2$

The radius of earth is 2.1 x 10^7 Feet

substituting values

$Area = 4*3.14*(2.1*10^7)^2\\Area = 5.5*10^1^5ft^2$

3. Now we will find out the number of planets of earth size which can be covered by mole of gallon of paint

= Total area one mole of gallon can cover / area of earth

$= 2.40 * 10^2^6/5.5*10^1^5\\=4.4*10^1^0 planets$

6 0

4 years ago