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IRINA_888 [86]
2 years ago
14

In a large population of college students 20% of the students have experienced feelings of math anxiety. If you take a random sa

mple of 10 students from this population, the probability that exactly 2 students have experienced math anxiety is: ___________
a .3020
b .2634
c .2013
d .5 e 1
Mathematics
1 answer:
NARA [144]2 years ago
6 0

Answer:

In a large population of college students 20% of the students have experienced feelings of math anxiety. If you take a random sample of 10 students from this population, the probability that exactly 2 students have experienced math anxiety is:

Step-by-step explanation:

a .3020

b .2634

c .2013

d .5 e 1 the answers is A

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Solve the system.
svetoff [14.1K]

Answer:

(0, 1)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y + 5x = 1

5y - x = 5

<u>Step 2: Rewrite Systems</u>

y + 5x = 1

  1. Subtract 5x on both sides:                    y = 1 - 5x

<u>Step 3: Redefine Systems</u>

y = 1 - 5x

5y - x = 5

<u>Step 4: Solve for </u><em><u>x</u></em>

<em>Substitution</em>

  1. Substitution in <em>y</em>:                      5(1 - 5x) - x = 5
  2. Distribute 5:                             5 - 25x - x = 5
  3. Combine like terms:                5 - 26x = 5
  4. Isolate <em>x</em> term:                          -26x = 0
  5. Isolate <em>x</em>:                                   x = 0

<u>Step 5: Solve for </u><em><u>y</u></em>

  1. Define equation:                    5y - x = 5
  2. Substitute in <em>x</em>:                       5y - 0 = 5
  3. Subtract:                                 5y = 5
  4. Isolate <em>y</em>:                                 y = 1
8 0
2 years ago
Please awnser fast!!!! :A rectangular swimming pool has a base of 200 square feet. The pool has a depth of 5 feet. What is the v
djverab [1.8K]

subscribe to pewdiepie

Step-by-step explanation:

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7 0
3 years ago
Solve for x 2|x-6|+14=38
ale4655 [162]

Answer:

x=18   x=-6

Step-by-step explanation:

2|x-6|+14=38

The first step is to isolate the absolute value

Subtract 14 from each side

2|x-6|+14-14=38-14

2|x-6|=24

Divide by 2 on each side

2/2|x-6|=24/2

|x-6| = 12

Now we can seperate the absolute value into two parts, the positive and the negative

x-6 =12          x-6 = -12

Add 6 to each side

x-6+6 =12+6     x-6+6 = -12+6

x=18                    x= -6

4 0
3 years ago
Calculate the slope of the line that contains the points (5,-2) and (-3,-7).
photoshop1234 [79]

Answer:

slope = 5/8

Step-by-step explanation:

y2 - y1 / x2 - x1

-7 - (-2) / -3 - 5

-5 / -8

= 5/8

4 0
2 years ago
Enter the value if x+27
Sonja [21]

Answer:

Shown Below

Step-by-step explanation:

Alright so first off we are going to use the little 67 on that corner. We know that it's a supplementary angle, and supplementary angles add up to 180.

180 - 67 = 113.

Inside angles of a triangle all add up to 180. Using that we can create the equation:

(x + 27) + x + 113 = 180

simplify.

2x + 140 = 180

subtract 140 on both sides.

2x = 40

divide both sides by 2

x = 20

substitute x into the asked equation.

(20 + 27) = 47

47 is your answer.

7 0
2 years ago
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