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Elina [12.6K]
3 years ago
15

Twice a number increased by 2 is zero

Mathematics
2 answers:
ikadub [295]3 years ago
8 0
Equation 2x + 2=0
Hope this helps you
Dmitry_Shevchenko [17]3 years ago
7 0
Alright, so 2x+2=0 (with x being the number) is what I'm getting from this. Subtract 2 from both sides to get 2x=-2, and then divide by 2 to get x=-1
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What is the decimal, mixed number and fraction for 600%
VARVARA [1.3K]
Decimal
To convert a percentage to decimal, you move the decimal point 2 places to the left. 600% - 6.0

Fraction
To convert a percentage to a fraction, divide the percentage by 100. 600/100 = 6/1 = 6
4 0
3 years ago
Gillian purchased 25 books at the library book sale. Each hardcover book cost $1.50, and each paperback book cost $0.50. Gillian
stepan [7]
25-14=11 and 26.5-21=5.5
11 paperback books
3 0
3 years ago
Read 2 more answers
sarah invests £9600 at a simple interest rate of 8% per year. Work out the value of the investment after 3 years
Bess [88]

Answer:

£11,904

Step-by-step explanation:

Simple interest = PRT/100 where P = initial investment, R = rate and T = time.

So interest on £9600 = 9600*8*3/ 100

= £2304

So the value after 3 years = 9600 + 2304

= £11,904   (answer)

3 0
3 years ago
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Find the center of a circle with the equation: x2 y2−32x−60y 1122=0 x 2 y 2 − 32 x − 60 y 1122 = 0
mixas84 [53]

The equation of a circle exists:

$(x-h)^2 + (y-k)^2 = r^2, where (h, k) be the center.

The center of the circle exists at (16, 30).

<h3>What is the equation of a circle?</h3>

Let, the equation of a circle exists:

$(x-h)^2 + (y-k)^2 = r^2, where (h, k) be the center.

We rewrite the equation and set them equal :

$(x-h)^2 + (y-k)^2 - r^2 = x^2+y^2- 32x - 60y +1122=0

$x^2 - 2hx + h^2 + y^2 - 2ky + k^2 - r^2 = x^2 + y^2 - 32x - 60y +1122 = 0

We solve for each coefficient meaning if the term on the LHS contains an x then its coefficient exists exactly as the one on the RHS containing the x or y.

-2hx = -32x

h = -32/-2

⇒ h = 16.

-2ky = -60y

k = -60/-2

⇒ k = 30.

The center of the circle exists at (16, 30).

To learn more about center of the circle refer to:

brainly.com/question/10633821

#SPJ4

7 0
1 year ago
Sorry this is the picture
castortr0y [4]

Answer:

ok so use the degrees

Step-by-step explanation:

x should be 8 + 17 and then multiply the 110 degrees by 8 + 17

3 0
2 years ago
Read 2 more answers
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