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3 years ago

If ab=5 and aa+bb=25,then (a+b)(a+b)=?

Mathematics

1 answer:

rosijanka [135]3 years ago

7 0

Answer:

(a + b) (a + b) = 35

Step-by-step explanation:

${(a + b)}^{2} = {a}^{2} + {b}^{2} + 2ab \\ \\ (a + b) (a + b) = a \ast a + b \ast b + 2ab \\ \\ = 25 + 2 \times 5 \\ \\ 25 + 10 \\ \\ (a + b) (a + b) = 35$

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Answer:

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4 years ago

I am stuck on this one lol. Coleman pays $12.99 for 3 hamburgers. How much would Coleman pay for 10 hamburgers? Enter your answe

gayaneshka [121]

Answer:

$43.30

Step-by-step explanation:

What we know,

3 hamburgers = $12.99

Coleman wants to know how much would he have to pay for 10 hamburgers,

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To find how much 1 hamburger costs divide 12.99 by 3,

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2 years ago

Explain why every positive number has two square roots

sasho [114]

Let's explain this by using an example. Let's take the square root of 4.
sqrt(4)
You'd think the answer is 2, and you are correct, but the answer is also -2.
Remember that a square root means that the two numbers must be the same, and multiply back up to 4. In this case, the number is 2.
2•2=4
BUT
-2•-2 ALSO =4
therefore there are two square roots...
2 is a square root
AND
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3 years ago

Figure ABC is to be translated to Figure A'B'C' using the rule (x, y) → (x−3, y+4).

REY [17]

Answer:
(-2,5)

Explanation:
We are given the following translation rule:
(x,y) .............> (x-3 , y+4)
This means that:
new x coordinate can be found by subtracting 3 from the old x coordinate
new y coordinate can be found by adding 4 to the old y coordinate

From the figure, we can note that the coordinates of point A are (1,1).

Applying the above translation rule, we can get the coordinates of A' as follows:
x coordinate of A' = x coordinate of A - 3
x coordinate of A' = 1 - 3 = -2

y coordinate of A' = y coordinate of A + 4
y coordinate of A' = 1 + 4 = 5

Based on the above, the coordinates of A' would be (-2,5)

Hope this helps :)

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3 years ago

Read 2 more answers

If ab=5 and a*a+b*b=25,then (a+b)(a+b)=?​

If ab=5 and aa+bb=25,then (a+b)(a+b)=?