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3 years ago

Help pls my test is about to end

Mathematics

1 answer:

lara31 [8.8K]3 years ago

6 0

Answer:

rule is when x increases by 1, y decreases by 3000

Step-by-step explanation:

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What kind of question will ask us to use this type of format to evaluate the integral instead of doing the regular integral eval

ANEK [815]

Answer:

Great work!

Step-by-step explanation:

These kind of questions are calculated through Riemann Sum. You can evaluate any definite integral using the Riemann Sum. It should be in the following form:

f(x)dx on the interval [a, b], or

$\int _a^b\:f\left(x\right)dx$

Now f(x) is simply y. Therefore in this example y = x^3 - 6x. We just need the sufficient amount of data to apply the Riemann Sum, including the interval [a, b] that bounds the area, and the the number of rectangles 'n' that we need to use.

Consider an easier approach to this question: (First attachment)

Graph: (Second Attachment)

6 0

3 years ago

Simplify, following the order of operations: 5 102 – 3 × (12 – 8)

JulijaS [17]

5 + 10^2 - 3 ( 12 - 8 ) = 93 12 - 8 = 4 then do 3 x 4 which = 12 and then add 5 to 10^2 which = 105 105 - 12 = 93

5 0

3 years ago

Read 2 more answers

Budget Question, please help

Alexandra [31]

The correct answer is D

3 0

3 years ago

A circle is graphed on this coordinate plane. What is the radius in units of the circle and what is the equation of the circle?

Anastasy [175]

Answer:

The radius is 4 units, and the equation of the circle is:

(x - 3)^2 + (y + 5)^2 = 16

Step-by-step explanation:

A circle centered at the point (a, b) and with a radius R, is written as:

(x - a)^2 + (y - b)^2 = R^2

In the image, we can see that a segment that cuts the circle in two halves is the segment between the points:

(-1, -5) and (7, - 5)

The distance between these points is the diameter of the circle.

Remember that the distance between two points (x₁, y₁) and (x₂, y₂) is:

D = √( (x₂ - x₁)^2 + (y₂ - y₁)^2)

Then in this case, the distance between the known points is:

D = √( (7 - (-1))^2 + (-5 - (-5))^2)

D = √( 8^2) = 8

The diameter of the circle is 8

Then the radius is:

R = 8/2 = 4

the radius is 4.

Now, to find the center of the circle we just need to go to any of the two extremes of the interval and count 4 units towards the center of the circle, this is:

(-1 + 4, -5) = (3, -5)

(7 - 4, -5) = (3, -5)

Then the center of the circle is the point (3, -5) and the radius is R = 4

The equation of the circle is:

(x - 3)^2 + (y - (-5))^2 = 4^2

(x - 3)^2 + (y + 5)^2 = 16

8 0

3 years ago

Poppy is 5 years older than Cairo. Their ages in years added up to 25. How old is Poppy and Cairo?

postnew [5]

Answer:

10 and 15

Step-by-step explanation:

let Cairo's age be x then Poppy's age is x + 5 , then

x + x + 5 = 25

2x + 5 = 25 ( subtract 5 from both sides )

2x = 20 ( divide both sides by 2 )

x = 10

That is Cairo is 10 years old and Poppy is 15

6 0

3 years ago

Read 2 more answers

Help pls my test is about to end​

Help pls my test is about to end