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3 years ago

Answer please for 15pts

Mathematics

1 answer:

Dennis_Churaev [7]3 years ago

5 0

Simplify the equation

√363 becomes 11 √3

3 √27 becomes 9 √3

11 √3 - 9 √3 = 2 √3

Explanation: Find the factors of each number

363 factors are 33, and 11

Find which one you can take the square root from which is 33 and that is how you get 11 √3

3 √27 can be simplified more because the factors of 27 are 9, 3 take the square root of 9. And multiply the leftover 3 with the outside number which is also 3. Then you get 9 √3

Now just subtract

11 √3 - 9 √3

= 2 √3

Sorry if this is confusing but I hope it helps !!

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What is 3/4 plus 1/3 equals?

snow_lady [41]

Answer:

1 1/12

Step-by-step explanation:

3/4 x 3/3

1/3x4/4

9/12+4/12=13/12

The fraction 13/12 Cannot be reduced, But the fraction 13/12 is the same as 13 divided by 12

So 13/12=1 1/12

Therefore 3/4+1/3=1 1/12

8 0

3 years ago

Find the equation of the quadratic function with vertex (-2,18) passing through (-5,0)?

Sliva [168]

Answer:

$y-18=-2(x+2)^2$

Step-by-step explanation:

Equation of the Quadratic Function

The vertex form of the quadratic function has the following equation:

$y-k=a(x-h)^2$

Where (h, k) is the vertex of the parabola that results when plotting the function, and a is a coefficient different from zero.

It's been given the vertex of the parabola as (-2,18):

$y-18=a(x+2)^2$

Now substitute the point (-5,0) and find the value of a:

$0-18=a(-5+2)^2$

Operating:

$-18=a(-3)^2$

$-18=9a$

Solving for a:

$a = -18 / 9$

a = -2

Thus, the equation of the quadratic function is:

$\mathbf{y-18=-2(x+2)^2}$

7 0

2 years ago

3/8 times what equals 1

horsena [70]

3/8 times 8/3 = 1
Answer=8/3

6 0

2 years ago

A simple random sample of n measurements from a population is a subset of the population selected in a manner such that which of

Ierofanga [76]

Answer:

a) sample of size n from the population has an equal chance of being selected.

b) Every member of the population has an equal chance of being included in the sample.

Step-by-step explanation:

Simple random sampling:

It is a type of probabilistic sampling.
It is an unbiased representation of population.
The probability of selection is equal for every observation.
A sample is taken in such a way that each member has an equal probability of being selected.
A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen.
Thus,the correct interpretation is given by,

a) sample of size n from the population has an equal chance of being selected.

b) Every member of the population has an equal chance of being included in the sample.

c) The simplest method of selection is used to create a representative sample.

The statement is false.

There is no pattern or technique used for selection. The selection is purely random.

d) Each subset of the population has an equal chance of being included in the sample.

The statement is false.

Each object of the population has an equal chance of being included in the sample. and not each subset.

e) Every sample of size n from the population has a proportionally weighted chance of being selected.

The given statement is false.

8 0

2 years ago

Please help

Vlada [557]

We know that

When we have

$f(x)=ax^2 +bx+c$

Here ,

a is the leading coefficient

c is the constant term

so, we can compare it with

$f(x)=5x^2-7x+6$

so, we get

$a=5,c=6$

so,

leading coefficient is 5

constant term is 6......................Answer

4 0

3 years ago