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Zinaida [17]
3 years ago
9

The sales tax for an item was $12.80 and it cost $320 before tax.

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
7 0

Answer:

Step-by-step explanation:

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M ∠abd=87 M ∠abd=9x-1 M ∠cbd =6x+58
elena-s [515]

Answer:

there is no answer to this

Step-by-step explanation:

4 0
3 years ago
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Simplify 15 to the 18th power over 15 to the 3rd power. <br> 15^6<br> 15^15 <br> 1^6<br> 1^15
KIM [24]
Well the simplest power of 15^8 is 3^15 and the simplest form if 15^3 is 15^15 

8 0
3 years ago
Complementary events must have a sum of 1.
Bas_tet [7]

This is a true statement.

Consider two events A and B. We say they are complementary if P(A)+P(B) = 1

This means that either event A or event B must happen, since the "1" represents 100% probability. Having a probability of 100% means absolute certainty.

---------

Example:

A = the event it rains

B = the event it does not rain

P(A) = 0.30 = 30% chance of rain

P(B) = 0.70 = 70% chance it does not rain

P(A)+P(B) = 0.30+0.70 = 1

So this shows the two events are complementary.

8 0
3 years ago
GIVING LOTS OF POINTS!!!!
Orlov [11]

Answer:

80 cubes

Step-by-step explanation:

volume of one small cube = 1 /2 × 1 / 2 × 1 / 2

= 1 / 8cm^3

let x be the number of cubes needed

1 / 8 × x = 10

x = 10 × 8

x = 80 cubes

6 0
3 years ago
Ok her it is need help
Furkat [3]

Answer:

..........

Step-by-step explanation:

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