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disa [49]
3 years ago
13

I need help really please

Mathematics
1 answer:
irina [24]3 years ago
7 0

Answer:

0.3²+[9.8-(5.4+1.4)]

0.3²+(9.8-(6.8))

0.3²+(3)

0.09+3

3.09 is the correct answer, please mark brainliest

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What point is plotted on the graph?<br><br> (9, 8)<br> (9, 9)<br> (8, 8)<br> (8, 9)
zhannawk [14.2K]

Answer:

It'd help to show the graph but, count out how far it goes right, than count up how far it goes up, the first number is x, the second number is y

Step-by-step explanation:

6 0
3 years ago
Can someone help me with this question please!!!!!
lianna [129]

Answer:

a = 29

u = 12

Step-by-step explanation:

32 + 7u + 9 + 2a - 3 = 3a + 7u + 9

32 + 2a - 3 = 3a

a = 29

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6 0
3 years ago
Read 2 more answers
If (a+bi)^2=2abi, what must be the relationship between a and b? Show or explain your reasoning.
Klio2033 [76]
(a+bi)^2 =(a+bi)(a+bi)= a^2 +2abi+b^2 i^2 \\  \\ i^2 = -1 \\  \\ (a+bi)^2 = a^2-b^2 +2abi = 2abi \\  \\ a^2 -b^2 = 0 \\  \\ a^2 = b^2 \\  \\ a = b

For the statement to be true, 'a' and 'b' must be equal

*First expand the binomial using FOIL, then set it equal to whats given "2abi".
Then you can find the relationship between a and b.
6 0
4 years ago
Sarah's restaurant bill came to us18.80 she usually leaves a 15%tip.how much tip did she leave​
Zarrin [17]

Answer:

2.82

Step-by-step explanation:

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8 0
3 years ago
Write the equation for a line in standard form (Ax+By+C) that is perpendicular to y = 3x -
salantis [7]

Answer:

x+3y-6=0

Step-by-step explanation:

given eqn is y=3x-2 which is 3x-y-2=0

the eqn of line perpendicular to given eqn is -x+3y+k=0

it passes through (6,4)

-6+3*4+k=0

or,. -6+12+k=0

or, k= -6

therefore, the eqn of line perpendicular to given eqn is x+3y-6=0

8 0
4 years ago
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