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2 years ago

7

In its first year, an infant averages 40% of each day awake, 25% of each day sleeping and dreaming, and 35% of each day sleeping

without dreaming. How many hours does the infant spend on each activity during its first year?

1 answer:

Evgesh-ka [11]2 years ago

8 0

Answer: Only 57 percent of babies stay asleep for eight hours straight at the age of one year, Canadian researchers found

Step-by-step explanation:

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Nimfa-mama [501]

Angelica is 5 steps to the right while Brion is 12 steps to the left it is 17 steps because theyre going in the opposite directions :P

<em>please give brainly if you can</em>

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3 years ago

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emmasim [6.3K]

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3 years ago

A person 6 feet tall standing 18 feet away from a lamppost casts a 9 foot shadow. When the same person moves 4 feet farther from

Len [333]

Answer:

<h2>12 feet 8 inch long cast a shadow</h2>

Step-by-step explanation:

A person 6 feet tall standing 18 feet away a lamppost cast a 9 foot shadow.

than move 4 feet than total distance is 22 feet

According to trigonometry rule make 30 degree angle

$tan\left ( 30\ \right )^{o}=\frac{p}{b}$

$\left ( \frac{1}{\sqrt{3}} \right )=\left ( \frac{x}{18+4} \right )$

or

$x\sqrt{3}=22$

than

$x=\frac{22}{\sqrt{3}}$

$=12feet$ $8 inch$ answer

3 0

3 years ago

Helpp plz: use inverse operations to write the inverse of f(x)= x/2 - 1

Aleksandr-060686 [28]

Answer:

f-1 (x) = 2x + 2

Step-by-step explanation:

f(x) = x/2 -1

y = x/2 -1

interchanging the position of x and y

x= (y-2)/2

2x =y - 2

y = 2x + 2

f^-1 (x) = 2x + 2

6 0

3 years ago

2,4 help me idk how to do it ASAP and show work if possible

azamat

Answer:155in^2

Step-by-step explanation:

Area of the poster board that she has left=Area of ||gm- area of ∆

Area of the poster board that she has left= 10*20-1/2*9*10

Area of the poster board that she has left=200-45=155in^2

7 0

3 years ago