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3 years ago

The bar graph shows the recommended number of hours of sleep for each age group.

Mathematics

2 answers:

Hitman42 [59]3 years ago

8 0

Answer:

about 10 hours

Step-by-step explanation:

OverLord2011 [107]3 years ago

4 0

Answer:

The answer is about 10 hours. The recomened amount of sleep for school aged children between the ages of 6-13 years old is 9-11 hours of sleep per night.

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rjkz [21]

Answer:

2/3

Step-by-step explanation:

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3 years ago

Complete the equation: x^2+8x + _=(_)^2

pentagon [3]

Answer:

x^2+8x+16=(x-4)^2

EXPLANATION:

(a+b)^2=a2+2.a.b+b2

we have to break the middle term in 2ab here a is x then 2xb=8x, => b=4, but value of a and b to get the required equation!

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3 years ago

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sasho [114]

Step-by-step explanation:

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3 years ago

In the figure below, segment AC is congruent to segment AB:

stepladder [879]

Answer: A. "Segment AD bisects angle CAB." is the right answer.

Step-by-step explanation:

Given : In ΔABC ,AC≅AB.

⇒∠ACB=∠CBA....(1) (∵ angles opposite to equal sides of a triangle are equal )

Now in ΔACD and ΔABD

AD=AD (common)....(2)

Here we need one more statement to prove the triangles congruent that is only statement (A) fits in it.

If AD bisects ∠CAB then ∠CAD=∠BAD..(3)

Now again Now in ΔACD and ΔABD

∠ACB=∠CBA [from (1)]

AD=AD [common]

∠CAD=∠BAD [from (3)]

So by ASA congruency criteria ΔADC≅ΔABD.

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3 years ago

What is the answer for this problem if f(x)= 3x+10x and g(x)=5x-3, find (f+g)(x).

hammer [34]

$(f+g)(x) =f(x)+g(x)=3x+10x+5x-3=\boxed{18x-3}\ D.$

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3 years ago

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