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artcher [175]
2 years ago
12

8x²y³ (3 is negative exponent) x = 4 y = 2

Mathematics
2 answers:
Dennis_Churaev [7]2 years ago
8 0

Answer:

8 x 16 x 8

64 x 16

1024 is .....

inessss [21]2 years ago
5 0

Answer:

<u>16</u>

Step-by-step explanation:

I will assume the expression is <u>8x^2y^</u><u>-3</u>

8x^2y^-3

(8*(4)^2)*(2^-3)

(8*16)*(1/2^3)

(8*16)*(1/8)

<u>16</u>

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Express 194720 in standard form correct to 3 significant figures<br>​
ELEN [110]

Answer:

1.95 x 10^5

Step-by-step explanation:

First look at the 4th digit in the number 194720 as the the question said to round to 3 significant figures. If the 4th digit is more than 5, then add 1 to the third digit which results in 195000. Now the question also said to express in standard form. Look for the first non-digit number in 195000. After 1 put a decimal point and remove all the zeros after the point which results in 1.95. Now count how many digits you moved to the left which comes as 5. Write the answer as 1.95 x 10^5.

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3 0
2 years ago
Please help with this problem!
Dovator [93]

Answer:

x+14

Step-by-step explanation:

(12+x)+2

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4 0
3 years ago
Read 2 more answers
If rain is falling at 0.5 inches per hour and 1.5 inches have already accumulated, how many hours must have passed if there are
Rasek [7]

Answer:

1.5 + 0.5h = 5 and  0.5h + 1.5 + 5

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6 0
2 years ago
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Fynjy0 [20]

Answer:

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Step-by-step explanation:

Annual is once every year and 3.5% of 2,500.00 is

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so in the first year Deirdre has 2500.00 + 87.5 = 2587.5

then you find 3.5% of 2587.5 which is 90.56250000000001

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5 0
2 years ago
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Please help!!!!!!!!!
Andrews [41]
Since sides kl and kj are congruent that means that angles klj and kjl are congruent. if angle klj is 58 then that means kjl is also 58. so you take the total number of degrees in a triangle (180) and subtract 58 and 58 (116) which leaves you with 64 ( the degree measure of lkj) 
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3 years ago
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