2.
The radius, r, and the coordinates of the centre, C, of the circle with equation
x2 + y2 - 6x + 4y - 12 = 0 are
A. r = 5, C(-2,3)
B. r = 25, C(2,-3)
C. r = 12, C(-3,2)
D. r = 5, C(3,-2)

Answer:

A B and C

Step-by-step explanation:

Lines that are parallel have the same x value

Ex. y=4x+5 is parallel to y=4x-12

Answer:

c different multiples numbers to see which is the complete one

Answer:

20 mins

Step-by-step explanation:

Answer:

20 mins

Step-by-step explanation:

ok first you divide 275 by 5 (so theh amount typed by the time)

them you get 55 (thats amount per min)

1100 divided by 55 so you get 20

20 minuets for that

Answer:

1500

Step-by-step explanation:

Given that :

Total number of marbles held by Layala and Zahra = 2700

Ratio = 2 : 7

Layala's share of marbles : (2 / (2+7)) * 2700

= 2/9 * 2700

= 600

Zahra's share of marble : (7 / (2+ 7)) * 2700

= 7 / 9 * 2700

= 2100

Hence, Zahra must have given away (2100 - x) = 600

2100 - 600

= 1500 marbles, so that both Zahra and Layala have the same number of marbles

Answer:

0.45hg

Step-by-step explanation:

Just move the decimal place two places to the left when converting something to hectograms, for example 1045 grams is 10.45 hectograms just move the decimal place twice to the left for this conversion.

Answer:

0.45

pls mark brainliest

Answer: I think its D

Step-by-step explanation:

9514 1404 393

Answer:

  1

Step-by-step explanation:

The sum of roots of quadratic ax^2 +bx +c = 0 is -b/a. Here, that means the sum of roots is ...

  -(-4)/4 = 1

The sum of the roots is 1.

Answer:

1/2

Step-by-step explanation:

By Vieta's formulas, the sum of the roots of $ax^2 + bx + c$ is given by $\dfrac{-b}{a}$. For this quadratic, that value is

\[ \frac{-b}{a} = \frac{-(-4)}{4} = 1.\]

Since the sum of the roots is $1$, the average of the roots is $\boxed{\dfrac 1 2}$.

Alternately, we could factor $4$ out of every term of this quadratic, giving $4(x^2 - x - 1)$. Since $4 \cdot 0 = 0$, any number that is a root of $x^2 - x - 1$ will also be a root of $4(x^2 - x - 1)$. Thus, the problem can change to finding the sum of the roots of $x^2 - x - 1$.

Since the coefficient of the linear term is $-1$ and this is the opposite of the sum of the roots, we find that the sum of the roots is equal to $1$, and the average is $\boxed{\dfrac 1 2}$.

Answer:

bq

Step-by-step explanation:

Answer:

300*41.9=12570

Answer:

t≤ 9

Step-by-step explanation:

3.5+4t≤ 39.5

subtract 3.5 from each side

4t≤ 36

divide each side by 4

t≤ 9

Answer:

t ≤ 9

Step-by-step explanation:

3.5 + 4t ≤ 39.5

3.5 + 4t - 3.5 ≤ 39.5 - 3.5

4t ≤ 36

4t ÷ 4 ≤ 36 ÷ 4

t ≤ 9

Answer:

∠ B = 45°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 given angles and equate to 180, that is

5x - 5 + 3x + 3 + 5x = 180, simplify

13x - 2 = 180 ( add 2 to both sides )

13x = 182 ( divide both sides by 13 )

x = 14

Thus

∠ B = 3x + 3 = 3(14) + 3 = 42 + 3 = 45°

Answer:

246.50

Step-by-step explanation:

Add each side which equale 58 then 58x1.25=72.50 then 58x3=174, 174+72.50=246.50

Answer: Ok what is the question though?

Step-by-step explanation:

Answer:

D it is d my guy you have fun with that

Answer:

im pretty sure its -1 because thats the answer i had before my answers didnt save n the same test you had. im not 100 percent sure though

Step-by-step explanation:

Answer:

her fee is $140 and she gets back $60

Step-by-step explanation:

step 1: multiply $20 by 7, which gives you 140

step too if you need how much money she gets back take 140 from 200 and you get $60

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Answer:

b

Step-by-step explanation:

it looks like the right anwser

Step-by-step explanation:

5x-3=3x+1

or, 5x-3x=1+3

or, 2x=4

or, X = 4÷2

or, X = 2

4x+2

4*2+2

= 1o

the ans is 10 units

Answer:

x=-10/8

Step-by-step explanation:

8x=-10

x=-10/8

Answer:

9/8

Step-by-step explanation:

Answer:

?????????????????????????

Step-by-step explanation:

????????????????????????

Answer:

[tex]\frac{p}{u} =k[/tex]

Step-by-step explanation:

Answer:

8  number of cakes were sold.

Step-by-step explanation:

Out of 12 baked goods sold , let the number of cakes sold be x in number and pies sold were 12 − x in number. Total sell was $ 144 , 1 cake costs $ 14 and 1 pie costs $ 8 ∴ 14 ⋅ x + ( 12 − x ) ⋅ 8 = 144 or 14 x − 8 x = 144 − 96 or 6 x = 48 ∴ x = 8 Therefore, 8 cakes were sold [Ans]

Answer:

3 cakes

Step-by-step explanation:

3x8=24

112-24=88

88/11=8

3cakes +8 pies= 11 baked goods

Answer:

x = -6

Step-by-step explanation:

So you need to start by simplifying the equation. Subtract 4 from both sides.

3x - 6 = -24.

Now, you can add the 6 to both sides.

3x = -18.

You can now divide by 3 to get x.

x = -6

Answer:

1.5

Step-by-step explanation:

pick two points on the graph I chose (3,0) and (1,-3) do y2 minus y1 over x2 minus x1. so 0 minus -3. and 3 minus 1 equals 3 over two or 3 divided by two and once it's divided you get 1.5

hope this helps

Answer:

4 is the maximum number of ride tickets she can buy

Step-by-step explanation:

Here, r represents the number of ride tickets and f represents number of food tickets.

The system of inequalities is given as:

r+f\geq 16                         ....[1]

4r+2f\leq 40                    .....[2]

To solve Mathematically:

Multiply equation [1] by -2 we have;

-2r-2f \leq -32               .....[3]

Add equation [2] and [3] we have;

2r \leq 8

Divide both sides by 2 we have;

r \leq 4

Since r must be less than or equal to 4.

You can also see the graph of the given system of inequalities as shown below.

The intersection point is, (4, 12)

Therefore, the maximum number of ride tickets she can buy is, 4

Answer:

A. 4

Step-by-step explanation:

edg2021 hope this helps :>

Answer:

x = 2 pizzas

Step-by-step explanation:

Let

x = number of pizza ordered

Stella’s Pizza charges $16.00 room rental fee and an additional $8.00 for each pizza ordered.

cost for a party at Stella’s Pizza = 16 + 8x

Napoli’s Pizza charges $24 for the room rental fee and an additional $6.00 for each pizza ordered.

cost for a party at Napoli’s Pizza = 24 + 6x

Equate the cost for a party at Stella’s Pizza and cost for a party at Napoli’s Pizza

16 + 8x = 24 + 6x

8x - 6x = 24 - 16

2x = 8

x = 8/4

= 2

x = 2

Answer:

The first one is correct.

Step-by-step explanation:

-3.5 is inside of the shaded area of the line.

I hope this helps.