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2 years ago

I have a really hard time with math. Please explain this to me.

1 answer:

8 0

F(x) = x2-3 The domain of a polynomial is all x: (-∞,∞)Since f(x) is a quadratic equation, its graph is a parabola. Since the coefficient of the x2 term is positive (1), the graph opens upward and the vertex is at the bottom and is the lowest or minimum point of f(x). The vertex is located at the point (0,-3). Hence the range is from -3 to infinity: [-3,∞)

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400 people were surveyed about their eye color. 8% of the people surveyed have green eyes. how many people had green eyes

VashaNatasha [74]

Answer:

Step-by-step explanation:

The problem above can be solved by using the multiplication operation.

Given: 400 people

8% of the people with green eyes

Let's solve:

Let x be the number of people with green eyes.

x = 400 x 8%

x = 400 x (0.08)

x = 32

So, the number of people surveyed with green eyes is 32. The rest of the surveyed people (368) have a different eye color.

3 0

2 years ago

Separate the number 41 and the two parts so that the first number is eight more than twice the second number what are the two nu

vesna_86 [32]

The two numbers are 30 and 11

Solution:

Given that we have to separate the number 41 into two parts

Let the second number be "x"

Given that first number is eight more than twice the second number

first number = eight more than twice the second number

first number = 8 + twice the "x"

first number = 8 + 2x

So we can say first number added with second number ends up in 41

first number + second number = 41

8 + 2x + x = 41

8 + 3x = 41

3x = 41 - 8

3x = 33

x = 11

first number = 8 + 2x = 8 + 2(11) = 8 + 22 = 30

Thus the two numbers are 30 and 11

7 0

2 years ago

Timothy has read 8/9 of the book Holes. Tara has read 2/3 of the book. Phillip reads 4/5 of the book. who read the most

nevsk [136]

Answer: Timothy

Step-by-step explanation:

8/9=0.8888888889

2/3=0.6666666667

4/5=0.8

3 0

3 years ago

Solve this please: a=46c solve for c

Firlakuza [10]

$a = 46c\\c = \frac{a}{46}$

7 0

3 years ago

4) A rectangle as a length which is twice its width.

Yuki888 [10]

Answer:

Step-by-step explanation:

2 is it's length while in the perinthesis is x for its length plus the width which is doubled, explained by the x.

6 0

2 years ago