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Alisiya [41]
3 years ago
9

Last semester you took 3 final exams and you want to figure out which exam score really is your best score. Here are the scores

from your classes. Which of your three exam scores is the worst when compared to the other students in your classes? Math: Your score = 78, Class mean = 82, Standard deviation = 5 History: Your score = 85, Class mean = 87, Standard deviation = 4 English: Your score = 80, Class mean = 76, Standard deviation = 2.5.
Mathematics
1 answer:
Mademuasel [1]3 years ago
6 0

Answer:

76

Step-by-step explanation:

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Solve each absolute value equation or inquality and choose the correct answer from the choices provided.
lawyer [7]
1- 13 or -13 (B)

2- -5 < y < -3 (A)

3- t = 6 or -6 (B)

Hope this helps you =)
7 0
3 years ago
What is the value of y ?
Dmitry [639]

Answer:

6

Step-by-step explanation:

Chords within a circle are proportional. Proportional means that they form equal ratios. To solve for y, set up a proportion.

The ratios we will create will be \frac{long}{short} =\frac{long}{short} where each long and short form an angle.

So write:

\frac{12}{8} =\frac{y}{4}

To solve, cross multiply numerator with denominator.

12(4) = 8(y)

48=8y

6=y


4 0
3 years ago
What is the value of g^(2)? <br> A. -1 B. 1 C. 2 D. 1/2
kvasek [131]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Find the points where the line y = x - 1 intersects the circle x2 + y2 = 13
nata0808 [166]

Answer:

(-2,-3) and (3,2)

Step-by-step explanation:

sub in x-1 into y

x^2 + (x-1)^2 = 13

x^2 + (x-1)(x-1)=13

x^2 + x^2 -2x +1 = 13

2x^2 -2x-12=0

solve for x by factoring (quadratic formula, product sum etc..)

x= -2 and 3

plug in those values into y=x-1 and solve for y

3 0
3 years ago
Read 2 more answers
53% of what number is 384? <br> i got 724.52 how do i round it to the hundredths place?
aleksandr82 [10.1K]

Answer:

thats right.

Step-by-step explanation:

the first place after the decimal is tenths, second, hundredths, third thousands, and so on

6 0
3 years ago
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