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padilas [110]
3 years ago
15

GET THIS RIGHT GET BRAINLYEST!!! whats 4 plus 4?????

Mathematics
1 answer:
nirvana33 [79]3 years ago
8 0

Answer:

8

Step-by-step explanation:

4+4=8

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Alfonso leans a 20 ft ladder long against the wall with a base of 6 feet from the wall. How far up the wall does the ladder reac
jolli1 [7]

Answer:

19.1 ft

Step-by-step explanation:

-This a Pythagorean theorem problem given by the function:

b^2+h^2=H^2

Where

H is the Hypotenuse length

h is the perpendicular height

b is the base length.

#Given that H=20 ft and base length,b =6 ft, the perpendicular height is calculated as:

h^2+b^2=H^2\\\\h^2=H^2-b^2\\\\h^2=20^2-6^2=364\\\\h=\sqrt{364}\\\\=19.0788\approx 19.08\ ft\approx 19.1 \ ft

Hence, the ladder reaches the wall at a height of 19.1 ft

5 0
3 years ago
The scale of a map says that 4 cm represents 5 km.
vaieri [72.5K]

Answer:

16 cm

Step-by-step explanation:

4 cm represents 5 km. There is a total length of 20 km, so you do 20/5=4. Since you have to multiply 5 by 4 to get 20, you also multiply 4cm by 4, and you get 16, or the amount of cm that represents 20 km.

8 0
3 years ago
The sum of the ages of two siblings is 29. The brother is eleven more than half the age of his sister. How old is each sibling
mina [271]

Answer: the brother is 20 and the sister is 9

Step-by-step explanation:

29 - 11 = 18  18 divided by 2 is 9

9+11 is 20 the brothers age so the sister is 9

3 0
3 years ago
Read 2 more answers
If 3 apples cost $6, how much would 12 apples cost?
zhenek [66]
So 3 apples=6 dollars
therefor if we divide both sides by 3
1 apple=2 dollares

so therfor for every 1 apple, you pay 2 dollars

so if 12 apples
12 times 2=24
24 dollars

anonther way is
3 apples=6 dollars
6 apples=12 dollars
9 apples= 18 dollars
12 apples= 24 dollars

4 0
4 years ago
Read 2 more answers
REALLY EASY MATH WORTH A LOT OF POINTS<br><br> what is the name of this graph please help me
ivann1987 [24]

Answer:

a plot

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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