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lutik1710 [3]
3 years ago
12

Evaluate the following expression 30x^2y x=-2/5 y=5/8

Mathematics
1 answer:
meriva3 years ago
8 0
30(-2/5)²(5/8) = 30*(4/25)*(5/8) = 30*4/(5*8) = 3

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Isaac invested $1,800 in an account paying an interest rate of 4.7%
bazaltina [42]

Answer:

$3584.86 or 3600 if rounded to the nearest 100 dollars

Step-by-step explanation:

1800(1.047)^15= 3584.86

you can plug this into a calculator

7 0
2 years ago
Read 2 more answers
Five sixths divided by 3 equals what ​
rosijanka [135]

Answer: 5/18

<u>Do Keep Change Flip (KCF)</u>

Keep: 5/6

Change: ÷ into ×

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Your new problem should be: 5/6×1/3

<u>Multiply</u>

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8 0
2 years ago
. In the U.S., from 2004−2015, the correlation coefficient for the relationship between the size of a cell phone data plan, x, a
bonufazy [111]

Answer: strong positive correlafion between data plan size 'x' and number of text messages sent 'y'

Step-by-step explanation:

'R' in statistics is used to denote correlation Coefficient. The correlation Coefficient is a value which ranges between -1 to +1. It tells us the level of relationship or correlation which exists between the relative movement of two variables, in this case the relationship between data plan size and the number of text messages sent in the US. R value of 0 depicts that no relationship exists between the two variables, R value closer the R value is to +1 and - 1 depicts the strength of positive and negative correlation of the two variables respectively.

A R value of +0.97 in the context above, depicts a strong positive correlation between data plan size and number of text messages sent in the US. That is large data size usually corresponds to large number of text messages and vice versa.

4 0
3 years ago
On a sunny afternoon, a 10-meter tall billboard casts a shadow that is 6 meters long. At the same time a nearby building casts a
Liono4ka [1.6K]
1) 10/6 = H/ 4 or 5/3 = H/2 or H = 10/3 = 3.3 m 

<span>2) sin P = 3/5 (given) = sin (90-Q) = cos Q = 3/5</span>
5 0
3 years ago
How do I solve by using system of elimination?
Nikitich [7]
You eliminate or ‘take away’ the answers that you know or think that r wrong. The last answer that’s left is your answer.
6 0
3 years ago
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