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Tamiku [17]
3 years ago
8

Instructions:Select the correct answer from each drop-down menu. The sides of ∆ABC are 30 units, 40 units, and 60 units long. Th

e corresponding sides of ∆XYZ are r times as long as the sides of ∆ABC. The expression that gives the perimeter of ∆XYZ is . If the area of ∆ABC is n square units, the area of ∆XYZ is square units
Mathematics
1 answer:
andriy [413]3 years ago
8 0

Answer:

The sides of ∆ABC are 30 units, 40 units, and 60 units long.

The perimeter will be = 30+40+60=130 units

Given is that ∆ABC and ∆XYZ are similar and the corresponding sides of ∆XYZ are 'r' times as long as the sides of ∆ABC.

So, perimeter of ∆XYZ will be : 130\times r=130r units.

----------------------------------------------------------------------------------------

The area of ∆ABC is n square units, so area of ∆XYZ will be :

\frac{1}{2}(r\times height)(r\times base)

= n\times r\times r

= nr^{2} square units.

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The endpoints of ab are a(1,4) and b(6,-1). If point c divides ab in the ratio 2:3, the coordinates of c are ?. If point d divid
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Answer:

see explanation

Step-by-step explanation:

Find the coordinates of c using the section formula

x_{c} = \frac{(3(1)+(2(6)}{2+3} = \frac{3+12}{5} = 3

y_{c} = \frac{(3(4))+(2(-1))}{2+3} = \frac{12-2}{5} = 2

coordinates of c = (3, 2)

Similarly to find the coordinates of d

x_{d} = \frac{x(2(1))+(3(3))}{3+2} = \frac{2+9}{5} = \frac{11}{5}

y_{d} = \frac{(2(4))+(3(2))}{3+2} = \frac{8+6}{5} = \frac{14}{5}

coordinates of d = ( \frac{11}{5}, \frac{14}{5})


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3 years ago
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A number written in the form of p by Q is called​
Vsevolod [243]

Answer:

Rational number

Step-by-step explanation:

If a number is expressed in the form of p/q then it is a rational number. Here p and q are integers, and q is not equal to 0. A rational number should have a numerator and denominator.

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The square root of 27 lies between which two whole numbers
Agata [3.3K]

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5 and 6

Step-by-step explanation:

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<em>Hope this helped (: Can you please mark as brainliest?</em>

7 0
3 years ago
2-3x=-6 solve the ecuation<br> <img src="https://tex.z-dn.net/?f=2%2F-3x%3D-6" id="TexFormula1" title="2/-3x=-6" alt="2/-3x=-6"
Mkey [24]
Answer:

2-3x=-6

We simplify the equation to the form, which is simple to understand
2-3x=-6

We move all terms containing x to the left and all other terms to the right.
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We simplify left and right side of the equation.
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steposvetlana [31]

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Answer:

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Step-by-step explanation:

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