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1 year ago

HELP ASAPPPPPPP!!!!!!!!!!!

Mathematics

1 answer:

kolbaska11 [484]1 year ago

5 0

Answer:

x = 15

Step-by-step explanation:

you have a straight line and a straight line measures 180. You have a 90 degree symbol.

180 = 90 + 47 + 2x + 13

180 = 150 + 2x Subtract 150 from both sides of the equation

30 = 2x Divide both sides by 2

15 = x

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A class contains 6 students with black hair, 8 with brown hair, 4 with blonde hair, and 2 with red hair.

kobusy [5.1K]

Answer:

Step-by-step explanation:

If this class contains these types of hair color THEN the class will have

3/10 kids with black hair

1/10 kids have red hair

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1/5 kids have blonde hair

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In total the class has 20 kids

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3 years ago

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3 years ago

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Nastasia [14]

Answer:

Step-by-step explanation:

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3 years ago

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Rina8888 [55]

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8 0

3 years ago

Read 2 more answers

Without further study, you forget things as time passes. A model of human memory gives the percentage, p, of acquired knowledge

PIT_PIT [208]

Answer:

42.69% of information is acquired by the student in two weeks.

Step-by-step explanation:

We are given the following in the question:

$p = (100 -a)e^{-bt} + a$

where a and b are constants.

$a = 18\\b = 0.6$

p tells us about the percentage of acquired knowledge that a person retains after t weeks.

We have to find the percentage of knowledge acquired in two week.

We put t = 2

$p = (100 -18)e^{-(0.6)(2)} + 18\\p = 42.69$

Thus, 42.69% of information is acquired by the student in two weeks.

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3 years ago