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Usimov [2.4K]
3 years ago
11

I need help with number 19 and 20!! Please!

Mathematics
1 answer:
Alla [95]3 years ago
3 0
19 is -1 and 10 is -7 just look it up it will give you the same 
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If the diagonal of a square is 712, what is its area?
Setler79 [48]

The area of the square whose diagonal 712 units is 253472 units²

Step-by-step explanation:

You can find area of a square by using one of the two rules:

1. Area of a square = s², where s is the length of its side

2. Area of a square = \frac{d^{2}}{2}, where d is the length

   of its diagonal

∵ The length of the diagonal of the square is 712 units

∵ The area of the square = \frac{d^{2}}{2}

∴ The area of the square =  \frac{712^{2}}{2}

∴ The area of the square = 253472 units²

The area of the square whose diagonal 712 units is 253472 units²

Learn more:

You can learn more about area of figures in brainly.com/question/6530759

#LearnwithBrainly

3 0
3 years ago
A three pack of bar soap has a wholesale cost of $1.15. A pharmacy wants to sell this product with a markup of 60%. What are the
SashulF [63]
The mark up is .69 and the retail would be $1.84
7 0
3 years ago
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In a certain class, 25% of students wear
LiRa [457]
There are 24 students in the class
5 0
3 years ago
2/3x - 1-4x + 5/6x = -20 solve for x
viva [34]

Answer:

x=7\frac{3}{5}

Step-by-step explanation:

\frac{2x}{3}-1-4x+\frac{5x}{6}=-20

\frac{2x-4xtimes3}{3}-1+\frac{5x}{6}=-20

-\frac{5x}{2}=-19

x=\frac{38}{5}

8 0
4 years ago
I need help with this
ozzi

Answer:

Minimum

Step-by-step explanation:

The equation is a quadratic function meaning the the shape is a parabola. The sign of x^2 is + so the graph open upward. Thus the vertex is the minimum point on the graph.

5 0
2 years ago
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