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Vlada [557]
3 years ago
9

What is Derrick's mean test score so far?

Mathematics
2 answers:
Romashka [77]3 years ago
6 0

it is 74.4               81.5            and  median

Step-by-step explanation:

Vlada [557]3 years ago
5 0

Answer:96.5

Step-by-step explanation:

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Can someone help me with this one please
Step2247 [10]

Answer:


Step-by-step explanation:

<em><u>Find the Rate of Change</u></em>

The rate of change = Δy/Δx

(20 - 16) / (8 - 6) = 4/2 = 2 gal / minutes

<em><u>Slope and Graph</u></em>

The graph is given below. It shows the various points plotted and labeled.

The box near the y axis should be labeled gallons [in the tank]

The box under the x axis (if you have such a thing) should be labeled Time in minutes.

5 0
3 years ago
Can someone please help me on this question and show the work if you can?
Studentka2010 [4]

Answer:

it is a 60 30 90 triangle so basically 2y is = x

21² + y² = x²

441 + y² = x²

y = x/2 (2y = x)

441 + x²/4 = x²

4x² = 1764 + x²

3x² = 1764

x = exact is 24.248711306 simplied square root would just be 14√3

2y = 14√3

y = 7√3

exact wouldd be 12.124355653

6 0
3 years ago
Someone help me asap please.
zaharov [31]

15. x ≤ -24

    x + 19 ≤ -5

    x ≤ -24

16. z > -12

    3z > -36

    z > -12

17. 185 + c > 410; c > 225


18.   C.

    x - 6 ≥ 1

    x ≥ 7

7 0
3 years ago
If you add​ Natalie's age and​ Fred's age, the result is 36. If you add​ Fred's age to 4 times​ Natalie's age, the result is 72.
kozerog [31]

The known facts

  • the sum of Natalie's age and Fred's age is 36
  • the sum of Fred's age times four and Natalie's age is 72

Now, let's set up the equations where N is Natalie's age and F is Fred's age.

N + F = 36   ---- equation 1

N + 4F = 72 ---- equation 2

equation 2 minus equation 1 ---> 3F = 36 ---> F = 12, thus N = 24

Thus Fred is 12 years old, and Natalie is 24 years old.

7 0
2 years ago
Read 2 more answers
Can someone help me on these
grandymaker [24]

Answer:

Almost every question you ask can and will be answered if asked in a right why

6 0
2 years ago
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