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k0ka [10]
3 years ago
9

What is the average of -2.5, 5.2, 1.7, and -0.8?

Mathematics
1 answer:
Leokris [45]3 years ago
5 0
The average of these numbers is nine tenths, \frac{9}{10}, or .9, however you would like to put it.
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Help please thank you so much
krok68 [10]
Alright, so since 20/100=1/5, and 1/5 of 45=9, 20% off of 45=9 and 45-9=36 dollar sale. Since 30=30/100, we can divide 95 by 100 and multiply that by 30 to get 0.95*30=28.5. 95-28.5=66.5

Next, we need to find 8% of 36+66.5=102.5. 8=8/100, so we divide 102.5 by 100 and multiply it by 8, getting 1.025*8=8.2
6 0
3 years ago
Please help me with this geometry question <br><br> image attached
vodomira [7]

15/17. The value (ratio) of cos A is 15/17.

The trigonometric ratios of an acute angle are, basically, the sine, the cosine and the tangent. They are defined from an acute angle, α, of a right triangle, whose elements are the hypotenuse, the leg contiguous to the angle,  and the leg opposite the angle.

-The sine of the angle is the opposite leg divided by the hypotenuse.

-The cosine of the angle is the adjacent leg divided by the hypotenuse.

-The tangent of the angle is the opposite leg divided by the adjacent leg or, which is the same, the sine of the angle divided by the cosine of the angle.

cos A = adjacent leg/hypothenuse = BC/AC = 15/17

4 0
3 years ago
Which is more candy: one-half of a piece of candy or one-half of a bag of that candy?
aleksley [76]

Answer:

1/2 a bag

Step-by-step explanation:

1/2 a piece is smaller than 1/2 a bag because the bag is bigger

7 0
3 years ago
I need help , I don't understand
Allisa [31]
Divide by 3 bring it down by the 20th and bring the second one down
7 0
3 years ago
5x^3-2x^2+14x+7x^2+3x-11
oksian1 [2.3K]
If the answer your looking for is a graph then yeah

4 0
3 years ago
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