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xenn [34]
4 years ago
15

Tell whether the given equation has the ordered pair as a solution.

Mathematics
1 answer:
Digiron [165]4 years ago
7 0
8. y=x+6, (0,6)
    6=0+6
    6=6 Many solutions
9. y=1-x, (2,1)
    1=1-2
    1≠-2 No solution
16. 8x+5=29, 3
       8x=24
       x=3 3 is a solution
17. 5b+1=16, -3
      5b=15
      b=3 -3 is not a solution
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Elementary and secondary schools were classified by the number of computers they had.
Keith_Richards [23]

Answer:

Probability = 0.7259

Probability = 0.2741

Probability = 0.4414

Step-by-step explanation:

Given

The table

First, we calculate the amount of schools

Total = 752 + 3352 + 18865 + 14016 + 46805

Total = 83790

Solving (a): Probability of 75+ computers.

From the given table, schools with 75 or more computers have the population of:

75\ or\ more = 14016 + 46805

75\ or\ more = 60821

The probability is calculated as:

Probability = \frac{75\ or\ more}{Total}

Probability = \frac{60821}{83790}

Probability = 0.7259

Solving (b): Probability of less than 75 computers.

From the given table, schools with less than 75 computers have the population of:

Less\ than\ 75 = 752 + 3352 +18865

Less\ than\ 75 = 22969

The probability is calculated as:

Probability = \frac{Less\ than\ 75}{Total}

Probability = \frac{22969}{83790}

Probability = 0.2741

Solving (c): Probability of less than 10 computers.

From the given table, schools with less than 100 computers have the population of:

Less\ than\ 100 = 752 + 3352 +18865+14016

Less\ than\ 100 = 36985

The probability is calculated as:

Probability = \frac{Less\ than\ 100}{Total}

Probability = \frac{36985}{83790}

Probability = 0.4414

8 0
3 years ago
In the figure, VW || YZ. Find the value of x, and the measure of YA and WA.
svetoff [14.1K]

Step-by-step explanation:

because VW || YZ, the 2 triangles are similar.

this is given by the rules of equal angles of intersecting lines with parallel lines. Z to V and Y to W would be such intersecting lines.

and therefore, the angle at W is the angle at Y, the angle at V is the angle at Z. and therefore both angles at A are equal.

so, for similar triangles the scaling factor between corresponding pairs of sides is the same for all sides.

e.g. the same scaling factor that converts 7.2 to 12, converts then also x to x+4.

7.2 × f = 12

f = 12/7.2 = 12/ 72/10 = 120/72 = 10/6 = 5/3

x × 5/3 = x + 4

5x = 3x + 12

2x = 12

x = 6

A to Y = x = 6

W to A = x + 4 = 6 + 4 = 10

5 0
2 years ago
REVENUE
OverLord2011 [107]
You should put at least 400 in the savings Which impact did WWII have on the U.S?
A. The U.S. had to rebuild much of its own infrastructure due to the damages of the War
B. The U.S. had one of the highest death tolls of the War
C. The U.S. decided to not get involved in any
future wars
D. The U.S. experienced large economic growth as a result of their wartime economy
5 0
3 years ago
Find the equation of a line, in slope intercept form of a line that passes through the point (9,2) and is perpendicular to the l
son4ous [18]

Answer:

the first one  is correct ive T a k e n this testing.

Step-by-step explanation:

7 0
3 years ago
What is 42/66 written in lowest terms?
SSSSS [86.1K]

Answer:

\frac{7}{11}

Step-by-step explanation:

By lowest terms, it means to simplify. You can do so by dividing the fraction by a common factor, which in this case, is 6:

\frac{42}{66} ÷ \frac{6}{6} =

\frac{7}{11}

The fraction \frac{7}{11} cannot be simplified further, so this is the final answer.

8 0
4 years ago
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