All categories

2 years ago

Why do teachers say math is so important

Mathematics

2 answers:

insens350 [35]2 years ago

7 0

Because it helps you later in life when you need to pay bills or be able to buy a house.

Alexeev081 [22]2 years ago

7 0

Teachers say math is important because it is. Math is shown to us daily. In time, multiplication, unit rate. Almost everything uses math. Linear equations can be used to graph your expenses.

You might be interested in

What are the end points of the triangle called? How are they labeled?

horrorfan [7]

For this case we have that by definition:

A triangle is defined by three lines that are called sides, or by three points called vertices.

We know that:

The vertices of a triangle are labeled with capital letters.
The sides of a triangle are written with lowercase letters.
The angles of a triangle are written similarly to the vertices.

Answer:

The end points of the triangle are called vertices.

They are labeled in capital letters.

6 0

3 years ago

To determine the organic material in a dried lake bed, the percent carbon by mass is measured at two different locations. In ord

Sedaia [141]

Answer:

F statistic = 11.3 ;

-1.02

Step-by-step explanation:

____Location1(%C) ____ Location2(%C)

1 ______ 10.40 _________ 10.10

2 _____ 10.20 _________ 10.90

3 ______10.30 _________ 10.20

4 ______10.40 _________ 10.70

5 ______10.20 _________ 10.40

F = larger sample variance / smaller sample variance

Using calculator :

Sample standard deviation (s)

s1² = 0.01

s2² = 0.113

F = s2² / s1²

F = 0.113 / 0.01

F = 11.3

Yes, the two standard deviations for the locations are significantly different at the 95% confidence level.

B.)

Tvalue

x1 = 10.3 ; x2 = 10.46

μ1 = 10.30 ; μ2 = 10.46

(10.30 - 10.46) / sqrt[(0.01/5) + (0.113/5)]

-0.16 / 0.1568438

-1.02

6 0

2 years ago

The diameter of Circle \(Q\) terminates on the circumference of the circle at \((3,0)\) and \((-4,0)\). Write the equation of th

Dahasolnce [82]

The equation of the given circle in the standard form is given as (x + 0.5)² + y² = 3.5².

In the question, we are given that the diameter of Circle \(Q\) terminates on the circumference of the circle at \((3,0)\) and \((-4,0)\).

We are asked to write the equation of the circle in standard form.

The equation of the circle in standard form is given as (x - h)² + (y - k)² = r, where (h, k) is the center of the circle, and r is the radius of the circle.

The center of the circle can be found using the midpoint formula, as the center is the midpoint of the diameter.

Thus, the center is at ( (3 + (-4))/2, (0 + 0)/2 ) = ( -1/2, 0 ).

The length of the diameter can be calculated using the distance formula.

Thus, the length of the diameter of the circle is √((-4 - 3)² + (0 - 0)²) = √((-7)²) = √49 = 7.

The radius is half the length of the diameter.

Thus, the radius, r = 7/2.

Now, we have the center (h, k) = (-1/2, 0), and the radius, r = 7/2.

Thus, the equation of the circle in the standard form, (x - h)² + (y - k)² = r can be shown as:

(x - (-1/2))² + (y - 0)² = (7/2)²,

or, (x + 0.5)² + y² = 3.5².

Thus, the equation of the given circle in the standard form is given as (x + 0.5)² + y² = 3.5².

Learn more about the equation of the circle at

brainly.com/question/1559324

#SPJ4

8 0

1 year ago

Prime factorization of a 4- digit number with at least three distinct factors

denpristay [2]

Answer:

We know that every number can be written as a product of prime numbers.

The method to find the factorized form of a number depends on the number, we just try to find the different factors by dividing by them, for example for the number 1000 we have:

1000 is an even number, then we can divide it by 2 (2 is a prime number)

1000 = 2*500 (so we already found a prime factor)

500 is also an even number, so we can divide it by 2

1000 = 2*500 = 2*2*250 (we found another prime factor)

dividing by 2 again we get:

1000 = 2*2*250 = 2*2*2*125

1000 = (2*2*2)*125

now we just need to factorize 125

we know that 125 is a multiple of 5, such that:

125 = 5*25 = 5*5*5

(5 is a prime number, so it is completely factorized).

Then the factorization of 1000 is:

1000 = (2*2*2)*(5*5*5) = 2^3*5^3

Now with another example, 1422

1422 is an even number, so we again start using the factor 2:

1422 = 2 = 711

then:

1422 = 2*711

we already found a factor.

711 is a multiple of 3 (the sum of its digits is a multiple of 3), then:

711/3 = 237

We can write our number as:

1422 = 2*3*237

237 is also a multiple of 3

237/3 = 79

then:

1422 = 2*3*3*79

and 79 is a prime number, so we already have 1422 completely factorized.

8 0

2 years ago

a company installs 5000 light bulbs each with an average life of 500 hours and a deviation of 100 hours. find the percentage of

Andrei [34K]

Answer:

Probability is 0

Step-by-step explanation:

The key information is that the data is normally distributed.

In a normal distribution, each individual value of hours has a probability equals to zero. It is a continuos distribution which is centered in the mean value, and where the expected value is the average.

As the distribution it is centered in the mean value, and it is symmetrical, then the probabilty of a bulb lasting more than the mean value is 0.5, and the probabilty of lasting less than avergare is 0.5 as well, but each individual valu is 0

8 0

3 years ago