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taurus [48]
2 years ago
15

Evaluate f(-2) if f(x) = x²+ 3x +1

Mathematics
1 answer:
Zinaida [17]2 years ago
4 0

Answer:

-1

Step-by-step explanation:

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What’s the slope of (-7,2) and (1,4)
mamaluj [8]

Answer:

1/4

Step-by-step explanation:

Slope = (change in the y-values)/(change in the x-values)

Slope = (4 - 2)/(1 - (-7) )

Slope =  (4 - 2)/(1 + 7)

Slope = 2/8

Slope = 1/4

8 0
3 years ago
Point A, located at (-11,17) on the coordinate plane, is reflected over the x-axis to form point B. Then point B is reflected ov
zalisa [80]

Answer:

  B = (-11, -17)

  C = (11, -17)

Step-by-step explanation:

Reflection over the x-axis is accomplished by changing the sign of the y-coordinate:

  (x, y) ⇒ (x, -y) . . . . . reflection over x-axis

Reflection over the y-axis is accomplished by changing the sign of the x-coordinate:

  (x, y) ⇒ (-x, y) . . . . . reflection over the y-axis

__

  B = (-11, -17)

  C = (11, -17)

__

<em>Check</em>

Reflection over both axes negates both coordinates. It is equivalent to reflection over the origin, or rotation 180°.

  A(-11, 17) ⇒ C(11, -17) . . . . . both coordinates change sign

3 0
3 years ago
Janet took out a loan of $50,000 from Bank of America at 8% on March 19, 2015, which is due on July 8, 2015. Using exact interes
Paladinen [302]
The formula for this is I = PRT
I = Interest
P = Principal (starting amount) = $50,000
R = Rate (percentage) = 8% = .08
T = Time in years = days/years = 111/365

I = 50000(.08)(111/365)
I = $1216.438 
I = $1216.44 (rounded)


5 0
3 years ago
The art club has a goal to raise at least $500 by selling paintings to the student body for $15 each. They have already spent $7
LenKa [72]

Answer:

D

Step-by-step explanation:

15x - 70 ≥ 500

8 0
3 years ago
The slope-intercept form of the equation of a line that passes through (-5,-1) and (10,-7) is y+7=-2/5(x - 10). What is the stan
wariber [46]

Answer:

2x + 5y = -15  OR 2x + 5y + 15 = 0  Not sure they want it equal to zero

Step-by-step explanation:

y + 7 = -2/5(x - 10)

y + 7 = -2/5 x + 4

2/5x + y =-3

5(2/5 x + y = - 3)

2x + 5y = - 15

OR

2x + 5y + 15 = 0

3 0
3 years ago
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