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marta [7]
3 years ago
15

70:80 simplest form as a ratio

Mathematics
2 answers:
Snezhnost [94]3 years ago
8 0

70:80 \\  =  78

emmasim [6.3K]3 years ago
6 0

Answer:

7 : 8

Step-by-step explanation:

70 : 80 divided by 2 =

35 : 40 divided by 5 =

7 : 8

OR

70 : 80 divided by 10 =

7 : 8

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What is the factor of 25a2+b2?
Neko [114]

Answer:

(5a+b)⋅(5a−b)

Step-by-step explanation:

Changes made to your input should not affect the solution:

(1): "b2"   was replaced by   "b^2".  1 more similar replacement(s).

STEP

1

:

Equation at the end of step 1

 52a2 -  b2

STEP

2

:

Trying to factor as a Difference of Squares

2.1      Factoring:  25a2-b2

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check :  25  is the square of  5

Check :  a2  is the square of  a1

Check :  b2  is the square of  b1

Factorization is :       (5a + b)  •  (5a - b)

7 0
3 years ago
Select all the statements that describe the following set of numbers.
NeX [460]
1,2,3,3,4,5,6,8,8,9,9,10

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The mean is smaller han the meidan
The mean is approximately 5.66666667
This set has three modes.

3 0
3 years ago
Read 2 more answers
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Darya [45]

Answer:

MNP is congruent to QST.

N = S.

Angle S is 78 degress

6 0
3 years ago
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Find the area of the polygon.
svetlana [45]
This is a trapezoid and the trapezoid formula is b1 plus b2/ 2 times height. 

17 plus 5 is 22. Divided by 2 is 11. 

Now, we have to multiply 11 by the height : 5. 

11 times 5 is 55 and that is your area. 55 units squared.
7 0
3 years ago
Can anyone help with the question ! Thanks <3
Artist 52 [7]

Answer:

26, 42

Step-by-step explanation:

2, 4, 6, 10, 16

This sequence is a_n=a_{n-1}+a_{n-2}  ⇒  the next term is the sum of the previous 2 terms.

Therefore, the next 2 numbers in this sequence would be:

10 + 16 = 26  and 26 + 16 = 42    

7 0
2 years ago
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