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vodomira [7]
2 years ago
11

What does it mean? how do i solve the question

Mathematics
1 answer:
xxTIMURxx [149]2 years ago
4 0
A means an area 
s side of the square, because of all sides are equal 
then Area=s*s or Area=s²
so
A=9*9=81yd²
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Solve for y, z, x or t:
Rus_ich [418]

Answer:

Step-by-step explanation:

if~it ~is ~y+\frac{y}{a} =b\\then~\frac{ay+y}{a} =b\\ay+y=ab\\ y(a+1)=ab\\ y=\frac{ab}{a+1} \\

z-a=\frac{z}{b} \\z-\frac{z}{b} =a\\ \frac{bz-z}{b} =a\\bz-z=ab\\z(b-1)=ab\\z=\frac{ab}{b-1}

5 0
2 years ago
Use right triangle ABC. The figure is for reference only and is not drawn to scale. In a 30-60-90 triangle, the shorter leg had
miss Akunina [59]

Answer:

In a 30 60 90 triangle, the longer leg = shorter leg * square root (3)

longer leg = 8 * square root (3) = 8 * 1.7320508076

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Step-by-step explanation:

5 0
3 years ago
To make 20 pancakes you have to use 3 eggs. how many eggs do you use to make 100 pancakes?
SashulF [63]
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8 0
3 years ago
What are the solutions of the equation x^4 + 95x^2 - 500= 0? Use factoring to solve
Artist 52 [7]
1) given x^4 + 95x^2 - 500

2) split in two factors with common factor term x^2: (x^2 + )(x^2 - )

3) find two numbers that add up 95 and their product is - 500:

=> 100*(-5) = - 500 and 100 - 5 = 95

=> (x^2 + 100)(x^2 - 5)

4) factor x^2 - 5 = (x + √5) (x - √5)

5) write the prime factors: (x^2 + 100) (x + √5) (x -√5)

6) find the solutions:

x^2 + 100 = 0 => not possible

x + √5 = 0 => x = - √5

x - √5 = 0 => x = √5


Answer: x = √5 and x = - √5
4 0
3 years ago
There are 3000 people at a concert you survey a random sample of 200 people and find that for 35 of them this is their first con
Ipatiy [6.2K]
Ok so
ratio
35/200=x/3000
7/40=x/3000
multiply both sides by 12000
2100=4x
divide both sides by 4
525=x


aprox 525 people
6 0
2 years ago
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