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lora16 [44]
3 years ago
15

The sum of 18 and a number

Mathematics
2 answers:
Ann [662]3 years ago
7 0
18+x is what that means
Pani-rosa [81]3 years ago
6 0
The sum of 18 and 3 is 21
You might be interested in
Gina started with the circle (x−2)2+y2=16. She translated it 4 units left and 1 unit down. Then she reduced the radius by 1 unit
olchik [2.2K]

Answer:

(x + 2)² + (y + 1)² = 9

Step-by-step explanation:

Gina started with a circle with the given equation as,

(x - 2)² + (y - 0)² = 16

Since, standard equation of a circle is,

(x - a)² + (y - b)² = r²

Here (a, b) is the center of the circle and 'r' is the radius.

Therefore, from the given equation of the circle,

Center of the circle → (2, 0)

Radius of the circle → √16 = 4 units

She translated this circle 4 units left and 1 unit down.

Rule for the new center after translation will be,

(x, y) → (x - 4, y - 1)

(2, 0) → (2 - 4, 0 - 1)

         → (-2, -1)

Coordinates of the new center → (-2, -1)

Then she reduced the radius by 1 units.

Therefore, radius of the new circle = 4 - 1 = 3 units

Now we substitute these values in the standard equation of the circle to get the equation of the new circle.

(x + 2)² + (y + 1)² = 3²

(x + 2)² + (y + 1)² = 9

5 0
3 years ago
a hardware store marks up the price of all tools it gets from the ware house by 18% and then puts them on sale for 20% off what
Sauron [17]
Ksisiszijssjsndbdn 882728338388 Irish
8 0
2 years ago
When multiplying what number can go into 46 and 5
Whitepunk [10]
Since 5 is a odd number and 46 is even, the only number that can go into both evenly is 1.
6 0
3 years ago
How many quarts are there in 12 gallons and 3 quarts? enter the number only. Do not include units
lidiya [134]

Answer:

51

Step-by-step explanation:

5 0
3 years ago
Can somebody please help me with question b please?
snow_tiger [21]
\bf A=
\begin{bmatrix}
-2&0\\1&3
\end{bmatrix}\qquad B=
\begin{bmatrix}
1&0&3\\-1&3&0
\end{bmatrix}\\\\
-----------------------------\\\\
AB=
\begin{bmatrix}
(-2\cdot 1)+(0\cdot -1)&(-2\cdot 0)+(0\cdot 3)&(-2\cdot 3)+(0\cdot 0)\\\\
(1\cdot 1)+(3\cdot -1)&(1\cdot 0)+(3\cdot 3)&(1\cdot 3)+(3\cdot 0)
\end{bmatrix}

as you notice above, is the first-row components from A, multiplying all the columns subsequently on B, and you add the products of that row, that gives you one component on the AB matrix

in the one above, we end up with a 2x3 AB matrix
4 0
3 years ago
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