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irga5000 [103]
3 years ago
7

Plz help me as soon as possible! Thank you

Mathematics
2 answers:
Anit [1.1K]3 years ago
8 0
The second one :) because humans can’t produce their own food they have to buy/grow food
Serhud [2]3 years ago
5 0

Answer:

Not all living things produce food. They usually need to find a source and take from it, like when animals are hunting.

So the answer is the second one.

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Linear equation topic. (Lisa is 5 years younger than his elder brother,Daniel.The product of their ages is 2/3 of their grandmot
alisha [4.7K]
Let Daniel's age be 'x' years , hence, Lisa's age is (x - 5) years. Let Grandma's age be 'y' = 54 years.
Hence,
x(x - 5) = 2/3 × y
x² - 5x = 2 × 54 years / 3
x² - 5x = 36 years
x² - 5x - 36 = 0
∆ = (-5)² - 4(1)(-36) = 25 + 144 = 169
√∆ = √169 = 13
x\:  =  \:  \frac{ - b \:   \frac{ + }{ }   \:  \sqrt{ {b}^{2}  \:  -  \: 4ac} }{2a}
x1 = (5+13)/2, x2 = (5-13)/2
x1 = 9, x2 = -4
Since, age can't be negative,
Daniel's age = x = 9 years.
7 0
3 years ago
Find the surface area of the right triangle prism(above) using the net (below)
kifflom [539]

Answer:

144

Step-by-step explanation:

2( 1/2 × 3 × 4 ) + ( 11 × 5) + ( 11 × 4 ) + ( 11 × 3)

= 12 + 55 + 44 + 33

= 144

7 0
2 years ago
Help please & thank you , need it asap
lapo4ka [179]

Answer:

x = 180 - 30 - 41 - 67 = 42°

5 0
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−2((5+3)(−2+4))<br><br><br> i need help with 7th grade math
drek231 [11]
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What phrase describes the algebraic expression r over 9
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R divided by 9 is the answer.
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3 years ago
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