3 years ago

when you multiply my digits, the product is 20. When you add my digits the sum is a square number. What number am i

Mathematics

1 answer:

icang [17]3 years ago

6 0

Answer:5 and 4

Step-by-step explanation:

5*4=20

5+4=9 which is a square number

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If A, B, and Care 2x2 matrices; and det(A) = -2, det(B) = -3, and det(C)=-4 then compute: det(4C^TA^-1 C^TB^3) = 0 Official Time

almond37 [142]

Answer with explanation:

|A| = -2

|B|= -3

|C| = -4

$|4 C^TA^{-1}C^TB^{3}|=4 |C||A|^{-1}|C||B|^3, \text{as}|C^T|=|C|,|A^n|=A^n\\\\=4 \times (-4) \times (-2)^{-1} \times (-4) \times (-3)^3\\\\=4 \times (-4) \times \frac{-1}{2} \times (-4) \times (-27)\\\\=-1728 \times \frac{-1}{2} \\\\=864$

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3 years ago

Whats (c-7)(c+5) , (double brackets)

kherson [118]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

let's evaluate :

$(c - 7)(c + 5)$

${c}^{2} + 5c - 7c - 35$

${c}^{2} - 2c - 35$

6 0

3 years ago

Read 2 more answers

Three guys split the cost of $30. They each kick in $10. The manager tells the clerk the room is only $25. He hands five $1 bill

Mamont248 [21]

The bell hop took 2 bucks, gave them back three bucks, that's 5 bucks total. 30 minus 5 is 5. What your doing wrong is your adding the sums up when you should be subtracting. 27 minus 2 bucks is 25.

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3 years ago

The area of a rectangle is 63 square inches. The length is 9 inches. What is the measure of its width? Which equation represents

Brut [27]

A=LW
63=9W
63/9=9/9W
7=W
7in

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3 years ago

How do I get the recursive and explicit formulas of this: ..., -3, -18, -108, ...

PtichkaEL [24]

Answer: multiply by 6

Step-by-step explanation:

3×6=18

18×6=108

108×6=648

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3 years ago