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V125BC [204]
2 years ago
8

There are 26 students in the club. The French teacher will pick 3 students at random to guide visiting students from France. Wha

t is the probability that Teesha will not be picked as a guide?
Mathematics
1 answer:
IrinaK [193]2 years ago
4 0

Answer:

88.5

Step-by-step explanation:

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A rectangular plot of land that contains 1500 square meters will be fenced and divided into two equal portions by an additional
photoshop1234 [79]
Let the length be x and the width be w

The perimeter will be:
2x+3w=1500

thus
3w=(1500-2x)
w=(1500-2x)/3
w=500-2/3x

The area will be:
A=x*w
A=x(500-2/3x)
A=500x-(2/3)x²

The above is a quadratic equation; thus finding the axis of symmetry we will evaluate for the value of x that will give us maximum area.

Axis of symmetry:
x=-b/(2a)
from our equation:
a=(-2/3) and b=500
thus
x=-500/[2(-2/3)]
x=375
the length will be 375 m

The width will be 250 m

4 0
2 years ago
A school needs to buy new notebook and desktop computers for its computer lab. The notebook computers cost $400 each, and the la
Tanya [424]

Answer:

$8,050 total

Step-by-step explanation:

notebooks: 13×400=5200

desktop: 19×150=2850

8 0
3 years ago
-2(3x+2) is greater than or equal to -6x-4
olchik [2.2K]
The inequality would look like this:

-2 (3x + 2)\geq-6x-4

To begin to find the solutions, distribute the -2 throughout the set of parenthesis on the left side of the inequality by multiplying the -2 by each term in the set of parenthesis

-2 x 3x = -6x
-2 x 2 = -4

-6x -4 \geq-6x-4

Begin to isolate x by performing the opposite operation of adding -6x on both sides of the inequality

0x -4 \geq-4

Next perform the opposite operation by adding 4 on both sides of the inequality

0x \geq 0

Now, I'm not exactly understanding how that can possibly work. So, I guess I didn't really help you. But add a comment so that we can talk about the problem :)
8 0
3 years ago
How can we determine a slope?
zimovet [89]

slope formula: y2-y1/x2-x1

6 0
3 years ago
Juli says she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios
zhenek [66]
When is it due do u need it rn
8 0
2 years ago
Read 2 more answers
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