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Vadim26 [7]
3 years ago
13

Rút gọn câu sau (a+b)^3 - ( a-b )^3 - 6a^2b

Mathematics
1 answer:
klasskru [66]3 years ago
4 0

Answer:

eat same gooo

Step-by-step explanation:

bhosadi wala wala

khurta pajama kala kala

you ra bosadi wala

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What is 35% of 80? use the if/of formula
omeli [17]

Answer:28

Step-by-step explanation:

10%= 8

35%/10%= 3.5

8 x 3.5 = 28

8 0
3 years ago
Read 2 more answers
-) In a poll, 9 out of 25 students in Lydia's science class say they will vote for her for class president.
V125BC [204]
A) Divide and compare in decimal form -
9/25 = 0.36
4/6=2/7 = 1/4 = 0.25
0.6... > 0.25

B) Fraction to decimal conversion:
4/16 = 2/8 = 1/4 = 0.25

Use long decision or a calculator - 1 divided by four

C) Again, 9/25 = nine divided by twenty-five = 0.36

% Science class)

0.36 = 36%
Move decimal place to right twice and place “%” at the end.



0 0
3 years ago
Can anyone help me plz?
Nat2105 [25]
<h3>Answer: Third choice. \overline{AC} \perp \overline{BD}</h3>

==================================================

Explanation:

SAS stands for Side Angle Side. Note how the angle is between the two sides. To prove the triangles congruent with SAS, we need to know two sides and an angle between them.

We already see that BC = CD as shown by the tickmarks. Another pair of sides is AC = AC through the reflexive theorem.

The missing info is the angle measures of ACB and ACD. If we knew those angles were the same, then we could use SAS to prove triangle ACB is congruent to triangle ACD.

It turns out that the angles are congruent only when they are 90 degrees each, leading to AC being perpendicular to BD. We write this as \overline{AC} \perp \overline {BD}. The upside down T symbol meaning "perpendicular" or "the two segments form a right angle".

4 0
3 years ago
Six more than twice a number is 20
4vir4ik [10]

Answer:

7

Step-by-step explanation:

7x2=14

14+6=20

5 0
3 years ago
Which ordered pair is a solution to the system of linear equation? 2x+ 3y=6 <br> -3x+5y=10
allochka39001 [22]

Answer:

<h3>x = (-2)</h3><h3>y = 2</h3>

Step-by-step explanation:

2x + 3y = 6________( 1 )

-3x + 5y = 10_______( 2 )

( 1 ) × 3 ---- 6x + 9y = 18_____( 3 )

( 2 ) × 2 ---- -6x + 10y = 20_____( 4 )

(4)  +  (3) \\ 6x + 9y  +  ( - 6x + 10y) = 20 - 18 \\ 6x + 9y  -  6x - 10y = 2 \\ y = 2

y = 2 ,

2x + 3y = 6 \\ 2x + 3(2) = 2 \\ 2x + 6 = 2 \\ 2x = 2 - 6 \\ 2x =  - 4 \\x =  \frac{ - 4}{2}  \\ x = ( - 2) \\

6 0
2 years ago
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