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Eduardwww [97]
3 years ago
9

What should you do first in solving the quadratic equation? x² + 18x + 81 = 25

Mathematics
1 answer:
N76 [4]3 years ago
3 0

Answer:

x= -4,-14

Step-by-step explanation:

Try first to solve the equation by factoring. Be sure that your equation is in standard form before you start your factoring attempt.

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Solve -7/2=-28 please solve and show work
Assoli18 [71]

Step-by-step explanation:

-7/2 = -28

-7 = -28 × 2

-7 = -56

5 0
3 years ago
What is the value of c in the equation below?
Flauer [41]

Answer:

are the values of a or b given?

Step-by-step explanation:

6 0
3 years ago
If k is a positive integer and n = k(k + 7), is n divisible by 6 ? (1) k is odd. (2) When k is divided by 3, the remainder is 2.
olganol [36]

Answer:

1.) Yes

2.) Yes

Step-by-step explanation:

Given that

n = k(k + 7)

If k is a positive integer and n = k(k + 7), is n divisible by 6 ?

(1) k is odd. Yes.

Let assume that k = 3

Then, n = 3(3 + 7)

n = 3 × 10

n = 30.

30 is divisible by 6.

(2) When k is divided by 3, the remainder is 2. That is,

Let k = 5

Then,

5/3 = 1 remainder 2

Substitute k into the equation

n = k(k + 7)

n = 5(5 + 7)

n = 5 × 12

n = 60

And 60 is divisible by 6.

Therefore, the answer to both questions is Yes.

5 0
3 years ago
What shape is this????​
Sholpan [36]

Answer:

Quadrilateral

Step-by-step explanation:

4 0
3 years ago
( - 37 + 37 ) ÷ - 15 = What is the answerr​
Eduardwww [97]

Answer:

0

Step-by-step explanation:

~~~(-37+37 )\div(-15)\\\\=0\div (-15)\\\\=0

5 0
2 years ago
Read 2 more answers
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