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nirvana33 [79]
3 years ago
14

Evaluate the expression for the given value of the variable(s). -2x² + 8x – 4; x = -3

Mathematics
1 answer:
Pepsi [2]3 years ago
3 0
The correct answer is -46.
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Beau´s aquarium has 12 fish.Five of the fish are guppies. Which equation can be used to be determine the number of other fish in
ehidna [41]

Answer:

12 = 5 + x

Step-by-step explanation:

Total fish in the aquarium = 12

Number of guppies fish = 5

Number of other fishes = x

Total fish in the aquarium = Number of guppies fish + Number of other fishes

12 = 5 + x

Subtract 5 from both sides

12 - 5 = 5 + x - 5

7 = x

x = 7

Number of other fishes = x = 7

3 0
3 years ago
Determine the rate of change of the following linear equation as it translates from (-5, -1) to any other point on the line.
Norma-Jean [14]
The rate of change of a linear equation (first degree) is equivalent to the slope of a line. Slope is described as the vertical movement (rise) of the line over its horizontal counterpart (run). In determining the rate of change or slope (m) given 1 data point (x',y'), point-slope form is applicable. Point-slope form is: (y-y') = m (x-x'). Substitute the given point (-5,-1) in the equation. By substitution, [y-(-1)] = m [x-(-5)]. Re-arranging the equation, the rate of change or slope is, m = (y+1)/(x+5).
4 0
3 years ago
Rewrite the equation 2x+3y=6 In intercept form.
vlabodo [156]

Answer:

y= -\frac{2}{3}x+2

Step-by-step explanation:

Slope-intercept form is y=mx+b.

first, you subtract 2x

2x+3y=6

-2x      -2x

----------------

3y=-2x+6

Then, divide by 3 on both sides.

\frac{3y}{3}=\frac{-2x+6}{3}

And you get..

y=-\frac{2}{3}x+2

3 0
3 years ago
Plz help with number 3 if number 2 is wrong plz tell thx!
Olenka [21]
Number 2 is correct. For number 3, the mean is 9 and the mean absolute deviation is 1.33.
5 0
4 years ago
Read 2 more answers
A great white shark swims 422 feet below sea level. If the horizontal distance from the shark to a sailboat is 348 feet, what is
marshall27 [118]

Answer:

B. 50°

Step-by-step explanation:

Use the tangent ratio, then use the inverse to find the angle of elevation, X°

4 0
3 years ago
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