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IgorLugansk [536]
3 years ago
10

Suppose a professor counts the final exam as being equal to each of the other tests in her course, and she will also change the

lowest test score to match the final exam score if the final exam score is higher. If a student's four test scores are 83, 67, 52, and 90, what is the lowest score the student can earn on the final exam and still obtain at least an 80 average for the course?
Mathematics
1 answer:
Scorpion4ik [409]3 years ago
4 0

Answer:

  80

Step-by-step explanation:

The three highest exam scores have an average of 80. To maintain an average of 80, the final exam score must be at least 80.

  (83 +67 +90)/3 = 240/3 = 80

_____

Essentially, the final exam score counts as two tests, and the lowest test score is thrown out.

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PWEASE HELP IF YOUBARE GOOD AT MATH
Novosadov [1.4K]
<h3>Answer: 2</h3>

=========================================================

Explanation:

The function f(x) = -4x+1 is the same as y = -4x+1 where y = f(x)

Compare this to y = mx+b and we see the slope here is m = -4

---------

Now let's find the slope of g(x)

use the slope formula with any two rows you want. I'll pick on the last two rows.

m = (y2-y1)/(x2-x1)

m = (21-9)/(3-1)

m = 12/2

m = 6 is the slope of g(x)

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From here, we add the two slope values

(slope of f)+(slope of g) = -4+6 = 2

3 0
3 years ago
Fill in the blank (correctly). 20 points each.
lyudmila [28]
Distributing same key numbers
7 0
3 years ago
( ) - (2x4 - 2x2 - 3) = x4 + x3 - 2x2 + x find the missing polynomial;s
zloy xaker [14]
X⁴ + x³ - 2x² + x + (2x⁴ - 2x²<span> - 3) =
</span>x⁴ + x³ - 2x² + x + 2x⁴ - 2x² - 3 =
3x⁴ + x³ - 4x² + x - 3  ←  <span>the missing polynomial</span>
8 0
3 years ago
Which options could be the next step in simplifying this expression? 5 • (2 + 4) Choose exactly two answers that are correct. A.
Pavel [41]
5 * (2 + 4)

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5 0
3 years ago
The image of the point (2, 1) under a translation is (5, -3). Find
Yanka [14]

Answer:

The coordinates of the image of the point (6,6) under the same  translation is: (9, 2)

Hence, option C is correct.

Step-by-step explanation:

The image of the point (2, 1) under a translation is (5, -3).

It means when we horizontally move 3 units to the RIGHT i.e. adding 3 units to the x-coordinate and vertically move 4 units DOWN i.e. subtracting 4 units from the y-coordinate of the original point (2, 1), we get the coordinates of the image (5, -3).

Thus,

The rule of translation can be formulated such as:

(x, y) → (x + 3, y - 4)

(2, 1) → (2 + 3, 1 - 4) → (5, -3)

Thus,

Under the same rule of translation, we can determine the coordinates of the image of the point (6,6):

(x, y) → (x + 3, y - 4)

(6, 6) → (6 + 3, 6 - 4) → (9, 2)

Therefore, the coordinates of the image of the point (6,6) under the same  translation is: (9, 2)

Hence, option C is correct.

4 0
2 years ago
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