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Mariana [72]
1 year ago
11

I need help I dont know how to do it

Mathematics
1 answer:
ludmilkaskok [199]1 year ago
4 0

To solve this problem, we will use the completing the square method of solving quadratic equations

12)

First we find half the coefficient of x:

\begin{gathered} \frac{1}{2}\text{ of B}=\frac{B}{2} \\  \end{gathered}

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last month john spent 75.00 dollars on games. this month he only spent 63.00. he spent ___ percent less this month
aivan3 [116]
First, subtract 63 from 75 to find out how much it decreased. 
75 - 63 = 12 
Divide 12 by 75. 
12 / 75 = 0.16
In percents, that is 16%. 
He spent 16% less this month. 
Hope this helps!
3 0
4 years ago
Read 2 more answers
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
How do you rearrange the equation (2x) /(4pi) +((1-x) /2) =0 to solve for x?
USPshnik [31]
\frac{2x}{4 \pi } + \frac{1-x}{2} =0 \\ 
 \frac{x}{2 \pi } + \frac{1-x}{2} = 0
Then we will multiply both sides of the equation by 2 π :
x + π ( 1 - x ) = 0
x + π - π x = 0
x ( 1 - π ) = - π    / · ( - 1 )
x ( π - 1 ) = π
x = π / ( π - 1 )
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Answer

Cut out the shapes, and then multiply them.

Step-by-step explanation:

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3 years ago
What is (-oo,-11) U (5,oo)​
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Can you please please give me more information please thank you
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