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andrew11 [14]
3 years ago
9

The mean length of 10 childrens' big finger is 8.1cm.

Mathematics
1 answer:
sergiy2304 [10]3 years ago
8 0

Answer:

  • The mean length of 10 children's big finger is 8.1 cm

Average length of all the 10 children's finger is (8.1×10) cm = 81 cm.

  • The mean length of 11 adult's big finger is 14.1 cm

Average length of all the 11 adult's big finger is (14.1×11) cm =155.1

  • Mean length of these 21 people's big finger is
  • \frac{(81 + 155.1)}{21}  = 11.242857
  • Hence, <em><u>11.24</u></em> is the right answer.
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The ratio of dogs to cats being treated at a veterinarian's office this week is 5 : 2. Suppose there are 168 dogs and cats sched
Alexeev081 [22]

Answer:

48 cats

Step-by-step explanation:

Am interesting factoid about ratios:

The ratio a:b can be separated into fractional parts of \frac{a}{a + b} and \frac{b}{a + b}. We need to know the cat part. \frac{2}{5 + 2} = \frac{2}{7}, so that is the fraction part. Then, we multiply this fraction by 168 to get the total number of cats. This number is 48.

4 0
2 years ago
Give me equations that will equal to 16.. it can also b solving for x
STatiana [176]
It is a very simple answer but it works!

3 0
3 years ago
Need help ASAP !!!<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B6854%20%5Ctimes%206854%7D%20" id="TexFormula1" title="
aniked [119]

Answer:

√{6854×6854}=√6854²=±6854 is your answer

3 0
2 years ago
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The angle of depression from the top of a lighthouse to a boat is 27*. if the direct distance from the top of lighthouse to the
alisha [4.7K]

Answer:

Correct answer:  Db = 411 .18 ft

Step-by-step explanation:

Given:

α = 27°  angle of depression

Dt = 462 ft  distance from the top of lighthouse to the boat

Db = ?   distance from the base of the lighthouse to the boat

Here we have a right triangle with hypotenuse Dt and one leg Db.

By definition

cos α = Db / Dt  ⇒ Db = Dt · cos α

Db = 462 · cos 27° = 462 · 0.89 = 411 .18 ft

Db = 411 .18 ft

God is with you!!!

5 0
3 years ago
Solve the quadratic equation.<br> (x + 1)2 = 16<br> x = 3 or-5<br> x= -3 or 5<br> X = 35
Damm [24]

Answer:

X=7

(x - 3 )(x +5)

(x+3) (x-5)

X - 35

Step-by-step explanation:

(x + 1)2 = 16

Expanding , we have

2x + 2 = 16

2x = 16 - 2

2x = 14

X= 7.

4 0
3 years ago
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