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Bess [88]
3 years ago
12

Can anybody help me solve this? You must solve for X first.

Mathematics
1 answer:
gogolik [260]3 years ago
6 0

Answer:

45 degrees

Step-by-step explanation:

angle QRS is same as (2x + 3) because it is an isosceles triangle

so, 90 + (2x+3) + (2x+3) =180 degrees

             2x+3 +2x+3=180-90

2x+2x +3+3=90

4x+6=90

4x=90-6

4x=84

x=84/4

x=21

substitute x=21 in (2x+3)

2*21+3=45

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What is the vertex of the graph of the function below? <br><br>y = x2 + 8x + 12
Vera_Pavlovna [14]
Hello, 

The\,\,formula\,\,for\,\,the\,\,vertex\,\,of\,\,a\,\,quadratic\,\,equation\,\,is:  \\  V=( -\frac{b}{2a},f(-\frac{b}{2a}) )

That means that we must first obtain x, then we replace x in the function to get y, so:

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5 0
3 years ago
What is the result of isolating y2 in the equation below? 9x2 + 7y2 = 42
ElenaW [278]
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8 0
3 years ago
4(2x + 3) ÷ 5y From the expression above, provide an example of each of the following: sum, term, product, factor, quotient, and
Ann [662]

Answer:

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term - 2x

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6 0
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Read 2 more answers
Please help!!...............................
Airida [17]
B. you have to be ready to multiply all the numbers to get your answer.
3 0
3 years ago
Which expressions are equivalent to this expression?
Lyrx [107]

Answer:

Option B

Option C

Option D

All of these are correct

Step-by-step explanation:

Option B is correct because:

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Option C is correct because:

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Option D is correct because:

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Option A is incorrect because:

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7 0
3 years ago
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