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3 years ago

What is a function in math

Mathematics

2 answers:

Doss [256]3 years ago

6 0

It is a relationship/expression that involves one or more variables.

murzikaleks [220]3 years ago

4 0

A function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output.
*An example is the function that relates each real number x to its square x2.

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Bill and Henry were in a long jump competition. Bill went first and jumped 14.3 feet. If Henry jumped 1.3 times as far as Bill,

emmainna [20.7K]

B = 14.3
H = 1.3B

H = 1.3(14.3) = 18.59 ft <==

3 0

3 years ago

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Help me please please

aniked [119]

Answer:

The total least sale amount is $5,000,000

Step-by-step explanation:

Given as :

The base salary amount of Carmen = $125,000

The commission percentage on total sale = 4%

The performance bonus amount = $25,000

The total compensation amount last year = $350,000

Let The total sale amount = $x

According to question

Total compensation amount last year = base salary amount + percentage on total sale + performance bonus amount

I.e $350,000 = $125,000 + 4% of x + $25,000

Or, $350,000 = $150,000 + 4% of x

Or, 4% of x = $350,000 - $150,000

Or, 4% of x = $200,000

Or, × x = $200,000

Or, x =

∴ x = $5,000,000

So, The total sale amount = x = $5,000,000

Hence, The total least sale amount is $5,000,000 Answer

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A research scientist wants to know how many times per hour a certain strand of bacteria reproduces. The mean is found to be 10.3

user100 [1]

Answer:

Confidence interval for the true mean number of reproductions per hour for the bacteria is (10.1,10.5).

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 10.3

Population standard deviation, σ = 2.1

Sample size, n = 728

Alpha, α = 0.01

Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.01} = \pm 2.58$

$10.3 \pm 2.58(\frac{2.1}{\sqrt{728}} ) = 10.3 \pm 0.2008 = (10.0992,10.5008) \approx (10.1,10.5)$

6 0

3 years ago

Can someone help me with this please!! I’ll give brainliest plus free points

IRINA_888 [86]

Answer:

The answer to your question is: x₁ = 9 ; x₂ = -2, third option

Step-by-step explanation:

The excluded values are those that make the denominator equal to zero.

To find the excluded values, just factor the denominator and equal to zero to find the roots.

Process

x² - 7x - 18

- Find to numbers that added gives -7 and multiply -18.

- These numbers are -9 and + 2, because

-9 + 2 = -7

and -9 x 2 = -18

(x - 9) (x + 2) = 0

x₁ - 9 = 0 x₂ + 2 = 0

x₁ = 9 x₂ = -2

Test

(9)² - 7(9) - 18 (-2)² - 7(-2) - 18

81 - 63 - 18 4 + 14 - 18

81 - 81 18 - 18

0 0

5 0

3 years ago

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Ayaan travels 90 miles at an average speed of 60 mph.

lawyer [7]

Step-by-step explanation:

Speed = distance / time

Thereafter,

Distance :-

90 miles + 40 miles = 130 miles

Time :-

90 / 60 + 59 = 60.5 mph

Average Speed :-

130 / 60.5 = 2.148

8 0

2 years ago