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4 years ago

Plz help Thank you very much!

Mathematics

2 answers:

saveliy_v [14]4 years ago

7 0

Answer:

I believe the answer is 8.

Step-by-step explanation:

8.02 rounded to the nearest tenth is 8

julia-pushkina [17]4 years ago

7 0

8.02 rounded to the nearest tenth is 8

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A/-6 + 8 = 12 Solve for a

nika2105 [10]

I think the answer is 10

5 0

4 years ago

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Adam has 10 blocks numbered 1 through 10. Which describes the probability of randomly choosing a block that has an even number?

Licemer1 [7]

Answer:

$\dfrac{1}{2}$

Step-by-step explanation:

Given that:

10 number of blocks which have numbers from 1 through 10.

To find:

Probability of randomly choosing a block that has an even number.

Solution:

The given set of numbers is: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

There are a total of 5 Even numbers are {2, 4, 6, 8, 10}.

And There are a total of 5 Odd number are {1, 3, 5, 7, 9}.

Formula for probability of an event E can be observed as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

Here, Event E is randomly choosing an even number.

Number of favorable cases = 5

Total number of cases = 10

Therefore, the required probability is:

$P(E) = \dfrac{5}{10}\\\Rightarrow P(E) = \dfrac{1}{2}$

3 0

3 years ago

Solve the following equation by first writing the equation in the form a x squared = c:

Radda [10]

Answer:

The Quadratic Formula: Given a quadratic equation in the following form:

ax2 + bx + c = 0

...where a, b, and c are the numerical coefficients of the terms of the quadratic, the value of the variable x is given by the following equation:

\small{ x = \dfrac{-b \pm \sqrt{b^2 - 4ac\phantom{\big|}}}{2a} }x=

−b±

−4ac

∣

Step-by-step explanation:

5 0

3 years ago

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A uniform distribution is defined over the interval from 6 to 10.

zhuklara [117]

Answer:

Refer below

Step-by-step explanation:

a) a and b are the lower and higher values of the interval for which uniform distribution is defined.

Here a= 6 and b =10

b) Mean of the uniform distribution= (a+b)/2 = (6+10)/2 =8

Or int x (1/4) dx = x^2/8 = 8

c) Variance of the uniform distribution = (b^2-a^2)/12 = (100-64)/12

= 36/12 =3

Std dev = sq rt of 3 = 1.732

d) To find total area

PDF of the distribution = 1/(b-a) = 1/4, 6<x<10

Area = \int 6 to 10 of 1/4 dx

= x/4

Subtitute limits

= (10-6)/4 =1

So total area = 1

d)P(X>7) = int 7 to 10 of 1/4 dx = 3/4

e) P(7<x<9) = Int 7 to 9 of 1/4 dx = 2/4 = 1/2

8 0

4 years ago

A father is three times as old as his son. In 14 years

frozen [14]

The answer is 42 because you times 14 by 3

6 0

3 years ago

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