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laiz [17]
3 years ago
5

The difference between two numbers is 28. The first number is three times the other number. What are the numbers? A. 14 and 42 B

. 26 and 42 C. 14 and 14 D. 15 and 43
Mathematics
2 answers:
notka56 [123]3 years ago
6 0

Answer: the answer is A

Step-by-step explanation:

1st:subtract 42-14=28(the difference)

2nd: divide 42÷14=3

nadezda [96]3 years ago
4 0
The answer would be A. 14 and 42
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Given a polynomial function f(x), describe the effects on the y-intercept, regions where the graph is increasing and decreasing,
Jobisdone [24]
A.  When f(x) becomes g(x) = f(x) + 2, the graph of f(x) is shifted upward 2 units.

B  The graph of f(x) is reflected in the x-axis and then vertically compressed by a factor of 1/2.
7 0
4 years ago
***PLEASE HELP***
Molodets [167]
Given:
250 sheep in a 40-acre pasture.
Number of sheep grazing in each acre.

250/40 = 6.25 or 6 sheep per acre

n = 6
sample proportion: signified by ρ
Sample 1: 4 → 4/6 = 0.67
Sample 2: 1 → 1/6 = 0.17
Sample 3: 9 → 9/6 = 1.50

multiply the sample proportion by 1-ρ
Sample 1: 0.67(1-0.67) = 0.67(0.33) = 0.2211
Sample 2: 0.17(1-0.17) = 0.17(0.83) = 0.1411
Sample 3: 1.50(1-1.5) = 1.5(-0.5) = -0.75

divide the result by n. n = 6
Sample 1: 0.2211/6 = 0.03685
Sample 2: 0.1411/6 = 0.02352
Sample 3: -0.75/6 = -0.125

square root of the quotient to get the standard error.
Sample 1: √0.03685 = 0.1919
Sample 2: √0.02352 = 0.1534
Sample 3: √-0.125 = invalid

z value 95% confidence 1.96.

Sample 1: 1.96 * 0.1919 = 0.3761 or 37.61% margin of error
Sample 2: 1.96 * 0.1534 = 0.3007 or 30.07% margin of error


8 0
3 years ago
How would you describe the difference between the graphs of f(x) = x^2 +4 and<br> g(y) - y^2 +4?
s2008m [1.1K]

Answer:

Step-by-step explanation:

The function f(x)=x^2+4 is a positive upwards opening parabola with the vertex at (0, 4), whereas

the function g(y)=y^2+4 is a positive rightwards opening parabola (sideways parabola) with the vertex at (4, 0). This means that answer to this is that g(y) is reflected over the x axis whereas f(x) is reflected over the y axis.

3 0
3 years ago
What is 5x + 12 &lt; 2 ?
Masja [62]

Answer:

x < -2

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

<u>Algebra I</u>

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality

Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify.</em>

5x + 12 < 2

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Subtraction Property of Equality] Subtract 12 on both sides:                       5x < -10
  2. [Division Property of Equality] Divide 5 on both sides:                                 x < -2
5 0
2 years ago
Read 2 more answers
Please help me this is for a grade
melomori [17]

Answer:

see explanation

Step-by-step explanation:

product means to multiply, hence the product of 12 and k is

12 × k = 12k ( this is 84 means equal to 84 ), that is

12k = 84 ( divide both sides by 12 )

k = 7 ← is the solution


4 0
3 years ago
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