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Mumz [18]
3 years ago
8

How to do this please and what's the answer ​

Mathematics
1 answer:
nalin [4]3 years ago
5 0
This is how you do it! Please let me know if you need help.

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Which could the coordinates of the vertices of the following isosceles trapezoid centered in the origin, with base 2a and OR=c?
V125BC [204]

Answer:

Option (3) is correct.

The coordinates of the vertices of the given isosceles trapezoid centered in the origin, with base 2a and OR=c are,

S(-a, 0) , Z(a, 0) , T(-b, c) and W(b, c)

Step-by-step explanation:

Given an isosceles trapezoid centered in the origin, with base 2a and OR = c.

We have to find the coordinates of vertices of the given isosceles trapezoid.

Since  O is at center then , coordinates of O (0,0).

And base SZ given to be 2a .

So SO = OZ

SO + OZ = SZ ⇒ 2 (SO) = 2a ⇒SO = a

Since point S lies in second quadrant and x coordinates in second quadrant are negative, thus Coordinate of S is (-a, 0)

and Z lies in first quadrant , both x and y are positive,

So, coordinate of Z is (a, 0)

given OR = c so R lies on y axis , so R has coordinate (0,c)

Since point T lies in second quadrant and x coordinates in second quadrant are negative, thus Coordinate of T is of the form (-x, c)

also, W lies in first quadrant , both x and y are positive. Thus, coordinate of W is of the form  (x,c)

When we compare from the given options, we get possible value of x is b,

Thus, the coordinates of the vertices of the given isosceles trapezoid centered in the origin, with base 2a and OR=c are,

S(-a, 0) , Z(a, 0) , T(-b, c) and W(b, c)

Option (3) is correct.

7 0
3 years ago
What is the surface area of the pyramid
ValentinkaMS [17]

Hint to answer:

Use the clues below to figure it out.

Step-by-step explanation:

Multiply 3 by 3.5 to get your answer.

6 0
3 years ago
Keri orders 4 1/2 dozen cupcakes for her graduation party. If each dozen costs $7.28, what is her total bill before tax?
Reil [10]
7.28 x 4.5 = $32.76
3 0
3 years ago
Read 2 more answers
Dave and Stephanie have competing refreshment stand businesses. Dave's profit can be modeled with the polynomial 3c2 + 9c - 100
sweet [91]

Answer

idk

Step-by-step explanation:

WHY T F

ARE THEY USING LETTERS IN MATH

8 0
3 years ago
Which equation is equivalent to I = prt?
horsena [70]

Answer: Choice D.  P = i/rt

This is the same as saying P = i/(rt). The parenthesis are preferred in my opinion to indicate we have rt in the denominator and not just r.

======================================

Explanation:

In the original equation, prt is the same as p*r*t. So we multiply p, r and t to get prt.

This can be thought of as p*(rt). To isolate p, we undo the multiplication done to the variable p. We will divide both sides by rt to get

i = prt

i = p*(rt)

i/(rt) = p*(rt)/(rt) ... dividing both sides by rt

i/(rt) = p

p = i/(rt)

5 0
3 years ago
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