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mafiozo [28]
3 years ago
6

Find the domain of the function f(x)= 5x^2 +2x-1

Mathematics
1 answer:
emmasim [6.3K]3 years ago
7 0
The domain is x such that x belong to real number
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The length of a rectangle is 4 cm less than twice its width. The perimeter of the
myrzilka [38]

Step-by-step explanation:

Let width be x

according to question

length = 2x-4

perimeter = 58

now,

perimeter = 2(length + width)

58 = 2(x+2x-4)

58 = 6x-8

6x = 66

x = 11

putting value of x in length

2x-4

= 2 X 11 -5

= 18

hence the dimensions of the rectangle is 18 and 11

4 0
3 years ago
several people are sitting evenly spaced around a circular table and the positions are labelled 1, 2 ,3 and so on .The people at
alexandr1967 [171]

12 will be opposite to 24. Then the number of the people are sitting at the table will be 24.

<h3>What is Algebra?</h3>

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

The several people are sitting evenly spaced around a circular table and the positions are labelled 1, 2, 3 and so on.

The people at positions 3 and 15 are directly opposite each other.

Then the number of the people are sitting at the table will be

1 is opposite to 13

2 is opposite to 14

3 is opposite to 15

Similarly, 12 will be opposite to 24.

Then the number of the people are sitting at the table will be 24.

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ1

7 0
2 years ago
A commercial fisherman is (less likely, equally likely, more likely) to need health insurance than a supermarket employee.
Talja [164]

Answer:

A commercial fisherman is  

EQUALLY LIKLEY

to need health insurance than a supermarket employee.

A person who smokes is  

MORE LIKLEY

to need health insurance than a nonsmoker.

An 18-year-old male college student is  

LESS LIKLEY

to need health insurance than a 72-year-old retired female.

5 0
3 years ago
When he was born Frank weighed 4.2 kg.This was 500g more than Sally.What did Sally weigh at birth?​
Karolina [17]

Answer:

3.7kg

Step-by-step explanation:

4.2kg =4200

4200-500=3700

8 0
3 years ago
A point is refected across the x-axis. The new point is (5,-3.5).What is the distance between the two points?
Vesna [10]
When a point is reflected across the x-axis, it's y value is flipped. Here is a formula for your future reference:

X-axis reflection: (x,-y)

Using your given coordinates, you simply plug the numbers in, resulting in final coordinates of (5,3.5).

Because the problem asks for the distance between the two points, you now have to find the difference between -3.5 and 3.5, which is 7.

There you go; the distance between the points is 7 units.
5 0
4 years ago
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