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ValentinkaMS [17]
3 years ago
11

The height of a coffee mug would be about: A. 500 mm B. 8 cm C. 20 cm D. 0.1 km

Mathematics
1 answer:
Leni [432]3 years ago
8 0
8 cm I mean if we are talking average
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Do you agree with the statement that " cubic functions must have at least 1 x-intercept but not more than 3, whereas quadratic f
vladimir2022 [97]

Answer:

Yes, I agree

Step-by-step explanation:

For the cubic function

A cubic function is represented as:

f(x)=ax^3+bx^2+cx+d

A cubic function may have 1, 2 or 3 x intercepts. This is shown below

For 3 x intercepts

y = x^3 - x

Equate y to 0

x^3 - x = 0

Expand

x(x^2 - 1) = 0

Express x^2 - 1 as difference of two squares

x(x - 1)(x +1 ) = 0

<em>x = 0 or 1 or -1</em>

For 2 x intercepts

y = x^3 - x

y  =(x-5)^2)(x+7)

Equate y to 0

(x-5)^2(x+7) = 0

Expand

(x-5)(x-5)(x+7) = 0

<em>x= 5 or x = -7</em>

For 1 x intercept

y = x^3

Equate y to 0

x^3 = 0

Take cube roots of both sides

x = 0

It has been shown above that a cubic function may have 1, 2 or 3.

So, I agree to the statement

For the quadratic function

A quadratic function will not have any x intercept when the function can not be factorized;

E.g.

y = x^2 + x + 17

<em>The above function has no x intercept.</em>

A quadratic function will have at least 1 x intercept when the function can be factorized;

E.g.

y = x^2- 6x + 9

Equate y to 0

x^2- 6x + 9 = 0

Expand

x^2 - 3x - 3x + 9 = 0

(x - 3)(x-3) = 0

x = 3

We've shown that a quadratic may have no x intercept, and it may also have x intercept(s)

Hence, I agree to both statement

3 0
2 years ago
4.22 x 1o^6 + 2.25 x 10^5 + 2.8 x 10^6
denpristay [2]
7245000...hope that helps
8 0
3 years ago
How much will $5000 be worth in 5 years if it is compounded continuously at 3% interest?
Finger [1]
$5,796 is how much it would be. hope it helps
5 0
3 years ago
Read 2 more answers
What is the point of intersection when the system of equations below is graphed on the coordinate plane?
Artist 52 [7]

Answer:

This system of equations has infinite points of intersection

Step-by-step explanation:

* To know the point of intersection of the system of equations,

  you will solve the graphically or algebraically

- Graphically by drawing two lines on the coordinate plane

- Algebraically by substitution method or elimination method

* Lets use the substitution method

∵ y = 4 - x

∵ 2y = 8 - 2x

- Substitute y in the second equation by its value in the

 first equation

∴ 2(4 - x) = 8 - 2x ⇒ open the bracket

∴ 8 - 2x = 8 - 2x

* The two sides equal each other, that means we can use any

  vales of x, and on the graph they will be the same line for

  the two equations

∴ This system of equations has infinite points of intersection

3 0
3 years ago
Calculate the average for this list of numbers 1.90 7.99 4.33 5.21
malfutka [58]
What you do is add up all the values, then divide by the number of values.
\frac{1.90+7.99+4.33+5.21}{4}=\frac{19.43}{4}=4.8575
The average of the data is 4.8575.
8 0
3 years ago
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