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2 years ago

Which graph has a slope of -3?

Mathematics

2 answers:

worty [1.4K]2 years ago

8 0

Its the only one going down 3 and over 1.

Alexus [3.1K]2 years ago

8 0

The answer would be D because it says -3 and not just 3.

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Nastasia [14]

Gggggggggggggggggggggggggggggggggggggg. It would be 7

8 0

2 years ago

Write a definite integral that represents the area of the region. (Do not evaluate the integral.) y1 = x2 + 2x + 3 y2 = 2x + 12F

Svet_ta [14]

Answer:

$A = \int\limits^3__-3}{9}-{x^{2}} \, dx = 36$

Step-by-step explanation:

The equations are:

$y = x^{2} + 2x + 3$

$y = 2x + 12$

The two graphs intersect when:

$x^{2} + 2x + 3 = 2x + 12$

$x^{2} = 0$

$x_{1} = 3\\x_{2} = -3$

To find the area under the curve for the first equation:

$A_{1} = \int\limits^3__-3}{x^{2} + 2x + 3} \, dx$

To find the area under the curve for the second equation:

$A_{2} = \int\limits^3__-3}{2x + 12} \, dx$

To find the total area:

$A = A_{2} -A_{1} = \int\limits^3__-3}{2x + 12} \, dx -\int\limits^3__-3}{x^{2} + 2x + 3} \, dx$

Simplifying the equation:

$A = \int\limits^3__-3}{2x + 12}-({x^{2} + 2x + 3}) \, dx = \int\limits^3__-3}{9}-{x^{2}} \, dx$

Note: The reason the area is equal to the area two minus area one is that the line, area 2, is above the region of interest (see image).

3 0

2 years ago

A person invested $7,400 in an account growing at a rate allowing the money to

Reil [10]

Answer:

well the money doubles every 6 years but its only been 4 so

7,400 x 4 = 29,600

$29,600 is the answer

8 0

2 years ago

Please help me on this problem

GREYUIT [131]

Answer:

828

Step-by-step explanation:

snxnsbsbzhsbs Shah sh

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3 years ago

What points lies on the line whose equation is y=2x-3

Olenka [21]

(0,-3), this is the y-intercept.

8 0

3 years ago