1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
katrin2010 [14]
3 years ago
11

3.42

Mathematics
1 answer:
taurus [48]3 years ago
7 0

Answer:

105

Step-by-step explanation:

You might be interested in
My state's lottery has 30 white balls numbered from 1 through 30 and 20 red balls numbered from 1 through 20. In each lottery dr
seropon [69]

The three whites:

(30 choose 1) * (29 choose 1) * (28 choose 1) = 30 * 29 * 28


The two reds:

(20 choose 1) * (19 choose 1) = 20 * 19


So, The three whites + two reds = 30 * 29 * 28 + 20 * 19 = 24740

7 0
3 years ago
gayle made a baby quilt using 24 equal squares. she wants to know the side length of one square. the right side and the left sid
icang [17]
L= 3/4 ft
The side lengths quilt is:
Length- 4.5 ft
Breadth- 3 ft
8 0
3 years ago
The scores of the quizzes of five students in both English and Science are:
vredina [299]

Answer:

0.23

Step-by-step explanation:

Given the data:

____(x) __(y)__(x - m1) /s1 ___(y-m2) /s2

1 ___6 ___8__ - 0.2 _______0.625

2 __5 ___ 5__ - 0.7________ - 1.25

3 __9____6__ 1.3 ________ - 0.625

4__ 4____ 7__ - 1.2 ______ 0

5__ 8 ____9 _ 0.8 _______ 1.25

For English :

Mean score(m1) = 6.4

Standard deviation (s1) = 2.0

For Science :

Mean score (m2) = 7.0

Standard deviation (s2) = 1.6

n = number of observations = 5

Correlation Coefficient (r) :

r = 1/(n - 1) Σ[((X - m1) / s1) * ((Y - m2) /s2)]

(-0. 2 * 0.625) + (-0.7 * - 1.25) + (1.3 * - 0.625) + (-1.2 * 0) + (0.8 * 1.25) = 0.9375

r = 0.9375/(5-1)

= 0.234

= 0.23

6 0
3 years ago
Which equation does NOT represent direct variation? A. Y=x/21 B. y/x=5/8 C. y-3= 3x D. y-5x=0
Serjik [45]
The gradient of the function is constant s the independent variable (x) varies The graph passes through the origin. That is to say when x = 0, y = 0. Clearly A and D pass through the origin, and the gradient is constant because they are linear functions, so they are direct variations. The graph of 1/x does not have a constant gradient, so any stretch of this graph (to y = k/x for some constant k) will similarly not be direct variation. Indeed there is a special name for this function, inverse proportion/variation. It appears both B and C are inverse proportion, however if I interpret B as y = (2/5)x instead, it is actually linear. I believe the answer is C. Hope I helped!
6 0
3 years ago
Read 2 more answers
Jessamine wants to ride her bike at least 85 miles per week. She rides to and from school 5 days per week. Her house is 6.25 mil
aalyn [17]

Step-by-step explanation:

Let's translate the verbal language to algebraic language.

She rides to and from school 5 days per week, 6.25 miles each route => 5*2*6.25 miles = 62.5 miles.

She rides additioanly around the park 2.5 miles for each trip t => 2.5*t = 2.5t

Total miles of her rides per week: 62.5 miles + 2.5t

She wants to ride minimum 85 miles => 62.5 + 2.5t ≥ 85

Then, the situation is represented by this inequality:

2.5t + 62.5 ≥ 85

You can develop it and get to several equivalent inequalities, for example:

2.5t ≥ 85 - 62.5

2.5t ≥ 22.5

t ≥ 9

Any of the four forms are equivalent and a valid answer.

4 0
4 years ago
Read 2 more answers
Other questions:
  • Determine graphically the x value when y= 18 in the given equation. <br> Y=6×
    5·1 answer
  • Will mark branliest!
    14·1 answer
  • PLEASE HELP ME FIGURE THIS OUT 1..... WITH SCREENIES
    5·1 answer
  • For some piecewise function f(x), the limit as x approaches "a" from the left is 5. The limit as x approaches "a" from the right
    7·1 answer
  • Two parallel lines are cut by a transversal and two of the same sides interior angle formed have measures of (4x+3)and(x+2)
    7·1 answer
  • Solve for x <br> 8 + x/3 = 15
    6·2 answers
  • Please help me with this work
    15·1 answer
  • If you take a number, times by 7 then subtract 1. You get the same as if you took the number, times by 5 then subtract 8. What i
    12·1 answer
  • The Johnson family is preparing to vacation at a famous amusement park. The park offers a family ticket discount package for an
    7·1 answer
  • What is the value of <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B7%7D%7B3%7D%20%20%5Cdiv%20%20%5Cfrac%7B5%7D%7B6%7D%20" i
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!