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elena-14-01-66 [18.8K]
3 years ago
7

Help me please? I'm kind of lost

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
3 0
The best choice is a
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Find the length of the hypotenuse of a right triangle whose legs have lengths 4 and 8
Irina18 [472]
Ya gotta use the Pythagorean theorem :)

a² + b² = c²      (reminder: c is the hypotenuse)

4² + 8² = c²

16 + 64 = 80

√80 = 8.94

H = 8.94

6 0
3 years ago
Find the difference.<br> (3-4x)-3(2.4x-7)
murzikaleks [220]

(3-4x)-3(2.4x-7)

3-4x-7.4x+21

-11.4x+18    

5 0
3 years ago
(Need help) pls read all of it?
Tems11 [23]

Answer:

total amount of tickets for the rides: 21+32+31=84

total amount of tickets she has: 23-6= 17

total amount of tickets she needs left: 84-17=67

answer: 67

Hope this helped :) have a great rest of your day or evening!!!

6 0
3 years ago
Read 2 more answers
Dad’s truck is 15 feet long. The trailer it tows is 40% longer the truck. How long the trailer?
elena-14-01-66 [18.8K]

Answer:

21 Feet Long

Step-by-step explanation:

You just reverse how you find a percentage.

1) 40 / 100 = .40

2) .40 * 15 = 6

3) 6 + 15 = 21

I did it this way because I need to find what 40% is to 15. But the trailer isn't 40% of the truck, it's 40% longer than the truck. So, we must add those 2 numbers together getting 21 Ft.

3 0
3 years ago
Read 2 more answers
How many millimeters are in 4.3 centimeters? How many centimeters are in 57 millimeters? Approximately how many centimeters are
3241004551 [841]

Answer:

a) 43

b) 5.7

c) 2.54

Step-by-step explanation:

The metric system is so easy to work with, everything is in base of 10, and all measures use a prefix. Here, we're talking about length, with the main measure being the meter.

1 m = 100 centimeters (centi- = 1/100)

1 m = 1000 millimeters (milli- = 1/1000)

So, for each centimeter, you have 10 millimeters.

a) How many millimeters are in 4.3 centimeters?

1 cm = 10 mm as shown above, so 4.3 cm = 43 mm

b) How many centimeters are in 57 millimeters?

10 mm = 1 cm so, 57 mm = 5.7 cm

c) Approximately how many centimeters are in an inch?

There are approximately 2.54 cm in an inch.  No real calculation to make here, it's just a unit conversion between systems, done following a known reference table.

8 0
3 years ago
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