2 years ago

How to write an algebraic expression for (r+1) /14

1 answer:

8 0

I'm not so good but I think thatmeans r is a different number and its half of 14 so figure out an equation

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nlexa [21]

For this case we must complete squares:

$x ^ 2 + 10x = 15$

We add the square of half the coefficient of the term "x",

$(\frac {b} {2a}) ^ 2$ on both sides of the equation:

$x^2+10x+(\frac {10} {2 (1)}) ^ 2 = 25 + 15\\x ^ 2 + 10x + 5 ^ 2 = 25 + 15$

According to the perfect square trinomial we have:

$(a + b) ^ 2 = a ^2 + 2ab + b ^ 2$

Rewriting the expression we have:

$a = x\\b = 5\\(x + 5) ^ 2 = 25 + 15\\(x + 5) ^ 2 = 40$

ANswer:

$(x + 5) ^ 2 = 40$

6 0

3 years ago

Brrunno [24]

Cos= 24/25

7^2+24^2=25^2

3 0

3 years ago

denis-greek [22]

Answer:

Step-by-step explanation:

4 0

2 years ago

Crazy boy [7]

Answer:

-0.95

Step-by-step explanation:

Divide the percent by 100 and since you are decreasing it would be a negative.

4 0

3 years ago

Amiraneli [1.4K]

$y = 2x + 7$ because it's a linear function.

5 0

2 years ago