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Natalka [10]
3 years ago
8

Rút gọn Giúp em với ạ. em lm mãi ko ra

Mathematics
2 answers:
elena55 [62]3 years ago
5 0

Answer:

Step-by-step 12explanation:

12

anastassius [24]3 years ago
4 0

Answer:

Nhân đa thức đối xứng

(2\sqrt{3} -4)/(\sqrt{3} -1) + (2\sqrt{2} -1)/(\sqrt{2} -1) - (1+\sqrt{6} )/(\sqrt{2} +3)

=(2\sqrt{3} -4)(\sqrt{3} +1)/(\sqrt{3} -1)(\sqrt{3} +1) + (2\sqrt{2} -1)(\sqrt{2} +1)/(\sqrt{2} -1)(\sqrt{2} +1) - (1+\sqrt{6} )(\sqrt{2} -3)/(\sqrt{2} +3)(\sqrt{2} -3)

=3-\sqrt{3} -2+4+\sqrt{2} -1 +(\sqrt{2} -3+2\sqrt{3} -3\sqrt{6} )/7

= 2.900712176

Step-by-step explanation:

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Lyla grew 16 flowers with 2 seed packets. How many seed packets does Lyla need to have a total of 40 flowers in her garden? Assu
Tresset [83]

Answer:

Lyla needs 5 seed packets to have 40 flowers in her garden

Step-by-step explanation:

* Lets explain the direct proportion

- Direct proportion is the relationship between two variables when

 their ratio is equal to a constant value

- If m and n are in direct proportion m ∝ n , then m = kn, where

 k is constant

- We can write the direct proportion as m/n = k

* Lets solve the problem

- Lyla grew 16 flowers with 2 seed packets

- The relationship between the number of flowers and the number

 of the seed packets is direct proportional

∴ F ∝ P , where F is the number of the flowers and P is the number

 of the seed packets

∵ F = kP

∵ F = 16 when P = 2

∴ 16 = k(2)

- Divide both sides by 2

∴ k = 8

- Substitute the value of k in the equation

∴ F = 8P

Lets find how many packets does Lyla need to have 40 flowers

∵ F = 40

∴ 40 = 8P

- Divide both sides by 8

∴ P = 5

∴ Lyla needs 5 seed packets to have 40 flowers in her garden

7 0
4 years ago
During a class election 12 people voted for candidate A. If there were 42 votes total, what is the ratio of votes for candidate
yarga [219]
12:30
A to B

30 + 12 is 42

so... the final answer would be 12:30.
3 0
3 years ago
Suppose tie structural equations of 3 economies are given as: AD = C +10 C =250 + 0.8Y I0 = 200 Find the equilibrium values of Y
timama [110]

Answer:

Step-by-step explanation:

LMAFOOOOOOOOOOOOOOOOOOOOOO

5 0
3 years ago
Which of the following is an arithmetic sequence?
Novosadov [1.4K]
The answer is B or C
7 0
3 years ago
Read 2 more answers
Prove or disprove that if a and b are two rational numbers, then a b is also a rational number.
Harman [31]
That is not correct, In a quotient or any type of equation numbers are considered rational number when they have repeating values, for this we will use {x} for example when comparing repeating values.


So if we have {a} + {b} from a equation prior to obtaining these values then we will take {a} + {b} and add {c} we will end up with {a} + {b} + {c}. We are using addition for an example.


{c} would only be a rational if it as well had repeating {x} values 

{x}=Repeating value
5 0
4 years ago
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