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pochemuha
3 years ago
7

There are 16 students who are participating in a chess tournament. The players will be randomly chosen. What is the probability

that Shira will play Joey in the first game?
Mathematics
1 answer:
Ainat [17]3 years ago
6 0
2/16 which is equal to 1/8 or 0.125
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Which number satisfies the inequality 9h + 15 > 55?
telo118 [61]
9h + 15 > 55
     - 15    - 15
9h > 40
h > 40/9
h > 4.44444.
any number greater than 4.44444
4 0
3 years ago
Read 2 more answers
The lines of symmetry in a regular polygon are equal to the number of sides minus 2. True or False
galina1969 [7]

Answer:

False

Step-by-step explanation:

A regular polygon may be defined as the polygon that have sides of equal length known as equilateral and angles made up of equal angles, known as equiangular.

The $\text{number of lines}$ of symmetry in a regular polygon is always equal to the number of sides of the polygon. For example, a regular pentagon have 5 sides, so the lines of symmetry of the regular pentagon is also 5, a square having 4 sides also has 4 lines of symmetry.

6 0
3 years ago
What negative number times 4 equals 0
oksian1 [2.3K]
Only answer that can give u zero is zero
5 0
3 years ago
On Monday Harold picked up four donuts and two large coffees for the office staff. He paid 4.08. On Tuesday Melinda picked up tw
Mandarinka [93]
One way to look at this is to make 2 equations and treat it as a set of equations. We will make the cost of a donut equal to x, and the cost of a coffee equal to y.

Harold's order:
4x + 2y = 4.08

Melinda's order:
2x + 3y = 3.92

To combine these equations, we need to cancel out either x or y:
4x + 2y = 4.08
<span>2x + 3y = 3.92
</span>
4x + 2y = 4.08
<span>4x + 6y = 7.84
</span>
4x + 2y = 4.08
<span>-4x - 6y = -7.84
</span>
We can now combine these equations:
4x + 2y = 4.08
<span>-4x - 6y = -7.84
</span>
-4y = -3.76

y = 0.94

Therefore the cost of a large coffee is $0.94. We can plug this into either original equation to find the cost of a donut.
<span>4x + 2y = 4.08
</span>4x + 2(0.94) = 4.08
4x + 1.88 = 4.08
4x = 2.20
x = 0.55

The cost of a donut is $0.55, and the cost of a large coffee is $0.94.
8 0
3 years ago
Please help! Quadratic equations!
Alexeev081 [22]

Answer:

x^2 -2x - 35 =0

Step-by-step explanation:

Assume that the quadratic term of this equation has no coefficient. One can set the equation up in factored form using the given roots. Then expand the equation and simplify the equation to convert to standard form.

The equation in factored form is the following,

(x+5)(x-7)=0

Expand, multiply every term in one of the parenthesis by every term in the other,

(x+5)(x-7)=0\\\\(x)(x)+(5)(x)-(7)(x)+(-7)(5)=0

Simplify,

x^2 +5x -7x -35 =0\\\\x^2 -2x -35=0

7 0
3 years ago
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