(-2√7x^2) * (1/3√28x^3)

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Answer 1

Answer: see attache picture for answer

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A set of equations is given below:Equation E: c = 2d + 1 Equation F: c = 3d + 7 Which statement describes a step that can be used to find the solution to the set of equations? Equation F can be written as c = 3(c − 1) + 7. Equation F can be written as c = 2(c − 7) + 1. Equation F can be written as d + 1 = 3d + 7. Equation F can be written as 2d + 1 = 3d + 7.
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What type of triangle has two congruent sides and two angles measuring 45 degrees?

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That's an isosceles right triangle.

Circle is divided into 20 equal parts. What is the angle measure of three of those parts?

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first, imagine a circle divided into 4 quarters
than you may use the following proportion

angle measure ------- part of circle
$90^0 - -----\frac14\n x \ \ ------\frac3{20}\n \n \frac14x=90^0\cdot\frac3{20}\n \frac14x=(270)/(20)\n \frac14x=\frac{27}2\ \ \ \ |\cdot4\n x=\frac{27}2\cdot4\n x=\frac{108}2\n \boxed{x=54\ degrees}$

Help me solve this problem please

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Answer:

Step-by-step explanation:

The number of girls at Sky High School is 60 greater than the number of boys. If there are 1250 students all together, how many girls are there all together?

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$girls : x\nboys : y \n \n x= y+60 \nx+y=1250 \n\nsubstitution : \n \n y+60+y=1250 \n 2y=1250-60\n2y=1190 \ \ / :2 \n y= 595 \n \n x=595 +60=655 \n \nAnswer : \ there \ is \ 655 \ \ girls \ and \ 595 \ boys$