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zmey [24]
3 years ago
15

What is 27ac-9abc+15acf

Mathematics
1 answer:
Oliga [24]3 years ago
5 0
3ac(9-3b+5f) you got to do factorization
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What is the 15% service tip on a $25.50 dinner in a restraunt
adell [148]
Basically you do 25.50 time .15 (15% is equal to .15) and you get 3.825 or $3.83 

hope this helped
8 0
2 years ago
PLEASE HELP!!!!! I WILL GIVE BRAINLIEST TO THE CORRECT ANSWER
Luda [366]

Answer:

Step-by-step explanation:

4 0
2 years ago
George is 14 years old. His age is 2 years more than twice his brother, Jhon's age. How old is John?
Luda [366]

Answer:

30

Step-by-step explanation:

14×2=28

28+2=30

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8 0
2 years ago
AD = 4, BC = 5, AB + DC = 12. Найти AB, DC, AC.
Black_prince [1.1K]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Given: Triangle ABC : triangle ADB. AB =24, AD =16 <br> Find: AC
RoseWind [281]

Answer:

<h2>AC = 36.01</h2>

Step-by-step explanation:

Given ΔABC and ΔADB, since both triangles are right angled triangles then the following are true.

From ΔADB, AB² = AD²+BD²

Given AB = 24 and AD = 16

BD² = AB² - AD²

BD² = 24²-16²

BD² = 576-256

BD² = 320

BD = \sqrt{320}

BD = 17.9

from ΔABC, AC² = AB²+BC²

SInce AC = AD+DC and BC² = BD² + DC² (from ΔBDC )we will have;

(AD+DC)² = AB²+ (BD² + DC²)

Given AD = 16, AB = 24 and BD = 17.9, on substituting

(16+DC)² = 24²+17.9²+ DC²

256+32DC+DC² =  24²+17.9²+ DC²

256+32DC = 24²+17.9²

32DC = 24²+17.9² - 256

32DC = 640.41

DC = \frac{640.41}{32}

DC = 20.01

Remember that AC = AD+DC

AC = 16+20.01

AC = 36.01

6 0
3 years ago
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