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Xelga [282]
4 years ago
5

for each x-y table given,copy the table, find the pattern and fill in the missing entries. Then write the rule for the pattern i

n words.​

Mathematics
1 answer:
mash [69]4 years ago
8 0

Answer:

  see the attached for the table and rules

Step-by-step explanation:

a) A graph of the given points shows they lie on the same line, one with a slope of 3 and a y-intercept of 2. Thus the rule is ...

  y = 3x +2

see the attachment for table values

__

b) The ratios of given points are all the same: y/x = 5/2, so that is the constant of proportionality:

  y = (5/2)x

see the attachment for table values

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An English professor assigns letter grades on a test according to the following scheme. A: Top 5% of scores B: Scores below the
tangare [24]

Answer:

Grade D score:

69 \leq x \leq 74

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 78.8

Standard Deviation, σ = 7.1

We are given that the distribution of scores on test is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

D: Scores below the top 77% and above the bottom 9%

We have to find the value of x such that the probability is 0.77

P( X > x) = P( z > \displaystyle\frac{x - 78.8}{7.1})=0.77  

= 1 -P( z \leq \displaystyle\frac{x - 78.8}{7.1})=0.77  

=P( z \leq \displaystyle\frac{x - 78.8}{7.1})=0.23  

Calculation the value from standard normal z table, we have,  

\displaystyle\frac{x - 78.8}{7.1} =-0.739\\\\x = 73.55  

We have to find the value of x such that the probability is 0.09

P(X < 0.09) = \\\\P( X < x) = P( z < \displaystyle\frac{x - 78.8}{7.1})=0.09

Calculation the value from standard normal z table, we have,  

\displaystyle\frac{x - 78.8}{7.1} = -1.341\\\\x = 69.27  

Thus, the numerical value of score to achieve grade D is

69 \leq x \leq 74

6 0
3 years ago
Find two consecutive integers whose sum is 95.<br><br> Let Statement(s) Equation/Solve Answer(s)
Gre4nikov [31]

47 and 48 are the integers.

Step-by-step explanation:

Let,

x and x+1 be the integers, therefore, according to statement;

x+(x+1)=95\\x+x+1=95\\2x+1=95\\2x=95-1\\2x=94\\Dividing\ both\ sides\ by\ 2\\\frac{2x}{2}=\frac{94}{2}\\x=47

2nd Integer = x+1

2nd Integer = 47+1

2nd integer = 48

47 and 48 are the integers.

Keywords: Addition

Learn more about addition at:

  • brainly.com/question/2154850
  • brainly.com/question/2367554

#LearnwithBrainly

4 0
4 years ago
Jinny is selling bracelets for $3.50. So far, she has earned $266.00. She needs to earn more than $406.00 in order to meet her g
dem82 [27]
3.50x + 266 = 406
             ↓
           40x
The answer is 40. She needs to sell 40 more bracelets to reach her goal.
8 0
3 years ago
A triangle in which all of the angles are smaller than 90 degrees is called what triangle ?
Sholpan [36]
This is an Acute triangle
6 0
3 years ago
Write an equation in intercept form of the parabola that passes through the point (3,40) and has x-intercepts −5 and 4.
Maru [420]
The equation of this parabola will have the form f(x) = a(x+5)(x-4), which works out to f(x) = a(x^2 + x - 20).  Since the parabola passes thru (3,40),

40 = a(3^2 + 3 - 20), or 40 = a(-8), so a = -5.

Thus, the equation of this parabola is     y = -5(x^2 + x - 20).
5 0
3 years ago
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