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vagabundo [1.1K]
4 years ago
10

A student has passed 70 percent of the 20 quizzes he has written so far successfully. If this student takes 60 quizzes during th

e school year, and passes 85 percent of the remaining quizzes successfully, what will his average score be?
Mathematics
1 answer:
Ne4ueva [31]4 years ago
4 0
I think the answer is52.4
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Type the missing numbers in this sequence:<br> -101, -105,<br> -109,<br> -117
PIT_PIT [208]

Answer:

The answer is - 113 that is the correct answer skipping in three's and the first one is - 97

6 0
3 years ago
Read 2 more answers
Which of the following correctly completes the square for: x^2+2x=48
Ket [755]

Answer:

(x+1)²= 49, the answer is B

Step-by-step explanation:

x² + 2x = 48

x² + 2x + (2/2)² -  (2/2)²= 48 --[what we are trying to do is to complete a square by adding (2/2)² -  (2/2)²]

(x+1)²= 49, the answer is B

4 0
3 years ago
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Please help I don’t understand!
Olenka [21]

Answer:

16.7552

Step-by-step explanation:

The Area of a sector of a circle is θ/360 pi r²

so,

30/360 x 3.142 x 8 x 8

= 16.7551 to four decimal places is

8 0
3 years ago
use natural logarithms to solve the equation. round to the nearest thousandth. show work!! 5e^(2x+11) =30
rosijanka [135]

Answer:

x = -4.604

Step-by-step explanation:

Here, we want to get the value of x

We start by dividing through by 5

e^(2x + 11) = 30/5

e^(2x + 11) = 6

Writing this in natural logarithm form, we have;

ln 6 = 2x + 11

2x + 11 = 1.792

2x = 1.792-11

2x = -9.208

x = -9.208/2

x = -4.604

8 0
3 years ago
Let $\overline{AB}$ and $\overline{CD}$ be chords of a circle, that meet at point $Q$ inside the circle. If $AQ = 6,$ $BQ = 12$,
Cloud [144]

9514 1404 393

Answer:

  2

Step-by-step explanation:

The products of chord lengths are the same for the intersecting chords:

  AQ×BQ = CQ×DQ

  6×12 = CQ×(38 -CQ)

This gives a quadratic in CQ:

  CQ² -38CQ +72 = 0 . . . . . write in standard form

  (CQ -2)(CQ -36) = 0 . . . . . factor the quadratic

  CQ = 2 or 36 . . . . . . . values of CQ that make the factors zero

The minimum length of CQ is 2 units. (DQ will be 36.)

3 0
3 years ago
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