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Alborosie
3 years ago
8

The point-slope form of a line that has a slope of –2 and passes through point (5, –2) is shown below.

Mathematics
2 answers:
Ilya [14]3 years ago
8 0

Answer:

y =-2x+8

Step-by-step explanation:

We have a point and a slope

(5,-2)  and m =-2

The slope intercept form of a line is

y = mx+b

y = -2x+b

Substitute in the point

-2 = -2(5)+b

-2 = -10+b

Add 10 to each side

-2+ 10 = -10+10 +b

8 = b

The equation is

y =-2x+8

professor190 [17]3 years ago
7 0

Answer:

y = negative 2 x + 8

Step-by-step explanation:

y + 2 = negative 2 (x minus 5)

y + 2 = -2x + 10

y = -2x + 10 - 2

y = -2x + 8

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Find a quadratic function that includes the set of values below.
Mariana [72]

Answer:

f(x) = -3x^2 + 10x + 3

Step-by-step explanation:

(0,3) (2,11)(3,6)

Using the form ax^2 + bx + c = y

From the first set we know that c = 3

Write an equation for the last two sets

x=2; y=11

a(2^2) + b(2) + 3 = 11

4a + 2b = 11 - 3

4a + 2b = 8

simplify divide by 2

2a + b = 4

and

x=3, y=6

9a + 3b + 3 = 6

9a + 3b = 6 - 3

9a + 3b = 3

simplify divide by 3

3a + b = 1

:

Use elimination to find a

3a + b = 1

2a + b = 4

--------------subtracting eliminate b

a = -3

Find b using the equation 2a + b = 4

2(-3) + b = 4

b = 4 + 6

b = 10

:

The equation: f(x) = -3x^2 + 10x + 3

8 0
3 years ago
I really need help pleaseee
Dmitriy789 [7]

Answer:

P=163,487,500

Step-by-step explanation: P=Ae^(kt)

151000000=145000000*e^(k5)

151000000/14500000=e^(k5)

1.04137931=e^(k5)

Ln 1.04=Ln e^(k5)

0.04=k5

k= 0.008

P=145,000,000*e^(.008*15)

P=145,000,000*e^0.12

e=2.71828

P=145,000,000*1.12749685

p=163,487,500

6 0
3 years ago
Plss someone answer I need the answer ASAP
Luba_88 [7]

Answer:

7560 cubic units

Step-by-step explanation:

10×9×7×12= 7560

Sorry if Im wrong :)

6 0
2 years ago
Find the value of x. Explain your reasoning. (5x − 12) + (x + 6) = because the consecutive angles of a parallelogram are . Solvi
Verizon [17]

Answer:

x=1

Step-by-step explanation: Snap Add?

I don't know what this means:

"because the consecutive angles of a parallelogram are . Solving for x gives x ="

I know that (5x-12) + (x+6)

1. 5x-12+x+6=0

2.6x-6=0

3.6x=6

4.x=1

6 0
2 years ago
Jan and two of her friends raised money by having a bake sale. They split the proceeds. If each person received $32.19, how much
Dimas [21]
 You need to multiply the answer by how many people got that amount, Jan +her 2 friends would be 3 people so
32.19 x 3 = 96.57
5 0
3 years ago
Read 2 more answers
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