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deff fn [24]
3 years ago
12

Please help me, i'll give you brainlyist 20 points (maths)

Mathematics
1 answer:
DedPeter [7]3 years ago
4 0

Answer:

Your answer would be 3/5 or 3:5

Step-by-step explanation:

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Please help
Mumz [18]

Step-by-step explanation:

multiplying expressions.

remember every term of one expression has to be multiplied with every term of the other expression, and the results are added up (while considering their individual signs, of course).

1.

(-3×3 + 2x - 4)(3x - 2)

(-9 + 2x - 4)(3x - 2)

(-13 + 2x)(3x - 2) = -13×3x + -13×-2 + 2x×3x + 2x×-2 =

= -39x + 26 + 6x² - 4x = 6x² - 43x + 26

2.

let's do the other multiplication and compare the result with the result of 1 :

(-13 + 2x)(2x - 3) = -13×2x + -13×-3 + 2x×2x + 2x×-3 =

= -26x + 39 + 4x² - 6x = 4x² - 32x + 39

no, this product is not the same as in 1.

8 0
2 years ago
Find the product of 2/3x4/7x14/5
Luden [163]
To multiply fractions, the numerator of the product is the product of the numerators, likewise for the denominators. (2/3) x (4/7) x (14/5) = (2 x 4 x14) / (3 x 7 x 5) = (112) / (105) = 1 and 1/15 .
5 0
3 years ago
Read 2 more answers
How many permutations exist of the letters a, b, c, d taken two at a time?
Fittoniya [83]
The number of permutations of the 4 different letters, taken two at a time, is given by:
4P2=\frac{4!}{2!}=12
3 0
4 years ago
Read 2 more answers
What is the volume of a prism that is 11×13×21?
posledela

Answer:

3003 units^3.

Step-by-step explanation:

Just multiply the dimensions :

11 * 13 * 21

= 143 * 21

= 3003 units^3.

8 0
3 years ago
My question is in the attachment.<br>​
Nikolay [14]

Answer:

5 and 25

Step-by-step explanation:

let the son's age be x then the father's age is x + 20

In 5 years

son = x + 5 and father = x + 20 + 5 = x + 25

Then

x + 25 = 3(x + 5) ← father is three times as old as son

x + 25 = 3x + 15 ( subtract x from both sides )

25 = 2x + 15 ( subtract 15 from both sides )

10 = 2x ( divide both sides by 2 )

5 = x and x + 20 = 5 + 20 = 25

si=on is 5 and father is 25

8 0
3 years ago
Read 2 more answers
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