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Thepotemich [5.8K]
3 years ago
9

Find the real zeros 4x²-16x + 2.5x​

Mathematics
1 answer:
Lapatulllka [165]3 years ago
8 0

I am going to assume 2.5x is really 25x (typo).

First formulate the equality

4x^2-16x+25x=0 \\4x^2+9x=0 \\x(4x+9)=0 \\

Now two results emerge.

x_1=0, x_2=-\dfrac{9}{4}.

Hope this helps.

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Brainliesttttttttt
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x ≥ - 9

Answer: a numbe line with a circle on - 9 and shading to the left.

Because that drawing represents the number that are less or equel than -9 and the answer is the numbers greater or equal than -9.
4 0
3 years ago
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A bakery can make 640 bagels in 4 hours. How many can they bake in 16 hours.
lukranit [14]

Answer:

two ways

Step-by-step explanation:

there are two ways to do this

640/4 =160  

take 160x16 = 2,560

OR

640x4 = 2,560

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5 0
3 years ago
An accounting professor wants to know the average GPA of the students enrolled in her class. She looks up information on Blackbo
olya-2409 [2.1K]

Answer:

a) True

b) Parameter

Step-by-step explanation:

We are given the following in the question:

An accounting professor wants to know the average GPA of the students enrolled in her class.

Population:

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  • A sample of individuals of interest is drawn from a population.

For the given case

Individuals of interest:

Students enrolled in accounting class

Population of interest:

Students enrolled in accounting class

Characteristic of interest:

Average GPA of the students enrolled in her class.

a) The population is all students enrolled in the accounting class.

The given statement is true as it contains all the observation of all the individuals of interest.

b) The computed average GPA of all the students enrolled in the class is 3.29

Statistic is a descriptive measure that describes a sample where as a parameter is a measure that describes the population.

Since 3.29 is the average of all the students enrolled in her class that is the average GPA of population.

Thus, 3.29 is a parameter.

6 0
4 years ago
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Answer:

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Step-by-step explanation:

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Cross multiply to get this outcome:

7tan(46)

Put into calculator

Then your answer will be X = 7.24 or 7.2

Hope that helps :)

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3 years ago
I will give brainliest!!!! Which expressions are equivalent to x+x+x+2? Choose 2 answers: A 3x + 2 (Choice B) B 3 + 2x (Choice C
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Answer:

the answer is a and d ! hope it help

Step-by-step explanation:

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4 years ago
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