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svetoff [14.1K]
4 years ago
6

An instructor gives his class a set of 18 problems with the information that the next quiz will consist of a random selection of

9 of them. If a student has figured out how to do 13 of the problems, what is the probability the he or she will answer correctly
all 9 questions? =.0147
atleast 8 questions ?
Mathematics
1 answer:
Anna [14]4 years ago
7 0

Answer:

The probability the he or she will answer correctly is 1.5%

Step-by-step explanation:

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A farm is to be built in the shape of Quadrilateral ABCD, as shown below. All four sides are equal.
lapo4ka [179]

9514 1404 393

Answer:

  65.52 square feet

Step-by-step explanation:

The area of a rhombus is half the product of the diagonals.

  A = (1/2)ab

  A = (1/2)(12.6 ft)(10.4 ft) = 65.52 ft²

The area of the farm is 65.52 square feet.

6 0
3 years ago
It would be great if you could help me solve the circled question. It's regarding logarithms.
VARVARA [1.3K]

Answer:

x=1/8

Step-by-step explanation:

  1. 2²x-7×2x+6=0,4x-7×2x+6=0,4x×2x=0+7-6,8x=1,8x/8=1/8,8 will cancel 8 and x will stand alone so x=1/8
3 0
3 years ago
Graph the line y+3=2(x-1) first identify the slope of the line
Mumz [18]
First you need to simplify the equation.

y + 3 = 2(x - 1)
y + 3 = 2x - 2

Then you need to put that into slope-intercept form (y = (slope)x + (y intercept))

y + 3 = 2x - 2
    -3           -3
y = 2x - 5

The slope is the coefficient of x, so 2 is the slope of the line.
6 0
4 years ago
Help I need this to pass!!!!!!!!!
ArbitrLikvidat [17]
<AEB and <CED are congruent by the vertical angles theorem.
<AEC and <BED are congruent by the vertical angles theorem.
5 0
4 years ago
Read 2 more answers
A mathematics teacher wanted to see the correlation between test scores and homework. The homework grade (x) and test grade (y)
Pachacha [2.7K]

Answer:

23

Step-by-step explanation:

Using an online calculator and plugging the values in, we get our equation of y=mx + b to become y = 1.2x - 17.8 .

Plugging 34 in for x, we get 1.2(34) - 17.8 = 23 for their projected test grade

6 0
4 years ago
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