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Anit [1.1K]
3 years ago
10

Find the value of the expression: 2xy+2x^2 for x=−2.5 and y=−7.5

Mathematics
2 answers:
faust18 [17]3 years ago
7 0
2(2.5)+2(7.5)+2(2.5)+2
5+9.5+5+2
14.5+7
21.5
ZanzabumX [31]3 years ago
5 0

Answer:

50.5

Step-by-step explanation:

2xy+2x^2  And we know x=-2.5 and y=-7.5.

In order of operations, exponents come first.

x^2 = -2.5 * -2.5 = 6.5.

6.5*2=13.

2xy + 13

2x=-5

-5*-7.5 = 37.5

37.5 + 13

50.5

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3 years ago
Plz guys help me with this question
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Answer:

Madhu diposited Rs 20000 in a bank,

Rate=10% per annum compounded half yearly,

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We know that,

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For interest compounded half yearly,

Total amount =P(1+(

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Step-by-step explanation:

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3 years ago
What is the volume of a triangular pyramid if the base area is 125 square feet and the height is 15 feet
joja [24]

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