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Mazyrski [523]
2 years ago
15

At a party, there are 8 small tables with 4 chairs at each table. Which expression can be used to find the number of chairs ther

e are at the party?
8 + 4
8 – 4
8 × 4
8 ÷ 4
Mathematics
2 answers:
Delvig [45]2 years ago
8 0
8 x 4
The answer is C
The number of chairs is repeated 8 times
Margaret [11]2 years ago
6 0
The correct answer is c 8 x 4
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The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airp
beks73 [17]

Answer:

(5.4582 ; 6.8618)

Step-by-step explanation:

Given the data:

6 10 2 6 3 3 3 6 6 6 6 5 8 9 10 10 7 9 3 6 5 10 9 9 10 3 8 6 6 3 3 6 6 5 4 10 9 3 5 7 10 6 3 8 6 8 3 3 5 5

Sample mean, xbar = Σx / n

n = sample size = 50

ΣX = 308

xbar = 308 / 50 = 6.16

Using a Calculator :

The sample standard deviation, s = 2.469

Confidence interval = xbar ± margin of error

Margin of Error = Tcritical * s/sqrt(n)

Tcritical at 95% ; df = 50 - 1 = 49

Tcritical = 2.010

Hence,

Margin of Error= 2.010 * (2.469/sqrt(50)) = 0.7018

Lower boundary : (6.16 - 0.7018) = 5.4582

Upper boundary : (6.16 + 0.7018) = 6.8618

(5.4582 ; 6.8618)

4 0
2 years ago
7/8+3/8can I have the answer
Georgia [21]
7/8 + 3/8 = 10/8 = 5/4
7 0
3 years ago
Read 2 more answers
PLEASE HELP WILL MARK BRAINLIEST
Verizon [17]
Four different ways to solve a quadratic equation are factoring, completing the square, quadratic formula, and graphing. all methods start with setting the equation equal to zero.

to determine the zeros of a quadratic graph, find the points where the graph of the quadratic equation crosses the x-axis. to determine the vertex, you convert the quadratic form to vertex form, you use this process of completing the square. to determine the axis of symmetry, you cut the graph vertically to see the symmetrical sides.

hope this helps, God bless!
8 0
2 years ago
Factor mn - 4m - 5n + 20
anastassius [24]
Mn - 4m - 5n + 20

In this, mn and -4m have a common factor; m. So we can take that out to make it:

m(n-4) -5n + 20

Now, -5n + 20 also has a common factor which is 5, because 20/5 gives you 4, and 5/5 equals 1. So we can talk out that -5 (it doesn't need to be negative, but negatives on variable, no gusta). So you'd get

m(n-4)-5(n-4)      OR m(n-4)+5(-n+4)
4 0
3 years ago
Read 2 more answers
What is the perimeter of the rectangle? 19 cm 17 cm​
Usimov [2.4K]

Answer: 36cm

Step-by-step explanation:

6 0
3 years ago
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