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Leya [2.2K]
4 years ago
13

Can someone help me with this question please?

Mathematics
1 answer:
Illusion [34]4 years ago
7 0
<BAX = <ADY
AB || CD                    Property of a square.
<BAX = Theta           Naming an angle (doesn't need proof)
<BAX = <AZD           Property of parallel lines
<ZDY = 90 - Theta    Right angle triangle
<YDA = theta            The two angles at D are complementary.
Which was what you were intended to prove.

Triangle DAY and ABX are Congruent.
You know this because you have two angles and a side that are equal. If two angles in a triangle are equal then the third angle is equal. You have AAS but you could easily make it into ASA. The key step is the one above.

Nice problem. Thanks for posting.
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A shop contained some refrigerator and televisions. The total number is 800, and 45% of them were refrigerator, and 65[infinity]
zaharov [31]

Answer:

The answer is below

Step-by-step explanation:

A shop contained some refrigerators and televisions. The total number is 800, and 45% of them were refrigerators. If 60% of refrigerators were sold and 65% of televisions were sold last week. How many fewer refrigerators were sold than televisions?​

Solution:

The number of refrigerators = 45% of 800 = 0.45 * 800 = 360 refrigerators.

The number of televisions = 800 - 360 = 440 televisions.

number of refrigerators sold = 60% of 360 = 0.6 * 360 = 216 refrigerators

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3 0
3 years ago
Solve by completing the square x^2-4x+9=0
Masteriza [31]

Step-by-step explanation:

Add 9 to both sides of the equation.

if you want to create a trinomial square on the left, find value that is equal to the square of half of b

Add the term to each side of the equation

SIMPLIFY >:(

How to Simplify it:

-Raise the -2 to the power of 2

and ten simplify 9 + (-2)^2 :

--Raise -2 to the power of 2 and then add 9 and 4

Factor the perfect trinomial square into (x - 2)^2

Solve the equation for x

How to do it:

-Take the square root of each side of the equation to set up the solution for x

--Then remove the perfect root factor, x - 2 under the radical to solve for x

---Remove parenthesis

----add 2 to both sides of the equation.

the final answer could be shown in different ways,but the exact form is x=±√13+2

In decimal form its x=5.60555127…,−1.60555127…

--this took me like 7 minutes to do im no geek tho lol

7 0
3 years ago
to recover a large chair in your home, you purchase 9 1/2 yards of upholstery fabric at $11.00 per yard. If there is 7% sales ta
KATRIN_1 [288]
11.00*9.5=104.5
104.5*0.07=7.315
7.315+104.5=111.815
6 0
3 years ago
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