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olga55 [171]
4 years ago
9

The expression (3r+5)(2r-6) is equivalent to ?

Mathematics
1 answer:
Sholpan [36]4 years ago
5 0
Is the answer 5r-1? I'm not sure tho sorry if it's wrong!
You might be interested in
A homeowner's backyard is a rectangle with width 18 yards long and length 16 yards long. They plan to put in a square pool with
Ugo [173]

Answer:

Step-by-step explanation:

Given the dimension of the  homeowner's backyard to be width 18 yards long and length 16 yards long, the area of the rectangular backyard id expreesed as;

Area of rectangle = Length * Width

Area of the rectangular backyard = 18yards * 16yards

Area of the rectangular backyard = 288yards²

If they plan to put in a square pool with side length 5 yards long in the backyard, the area of the pool = 5yd*5yd = 25yd²

The remaining area that will contain the tiles = Area of the rectangular backyard -  area of the pool

The remaining area that will contain the tiles = 288yd² - 25yd² = 263yd²

<em>Note that we cannot determine the amount of tiles they need to buy since we are not given the dimension of each tile to use</em>. The area needed for the tiles for the rest of the backyard is therefore 263yd².

Amount of tiles needed to buy can be expressed as 263/dimension of a tile.

4 0
3 years ago
find the equation of a line that is parallel to the straight line 2x-y=-3 and crosses the x-axis at x=-5​
Alecsey [184]

Answer:

y=2x+10

Step-by-step explanation:

In line equations its helpful to write your line in the form y = ax + b. This helps because a is always the gadient of the line and b is always the y intercept.

In this case it is y=2x+3

All parallel lines have the same gradient. The gradient of this line = 2.

If the line crosses the x axis at x=-5, then when x =-5 y = 0.

If you put all this in the form y =ax + b you get 0 = 2(-5) +b

So all you need to do to find b is rearrange. b = 10.

Therefore your line has gradient 2 and y intercept 10.

y = 2x + 10

7 0
3 years ago
Plz help me with this.
VashaNatasha [74]

Answer:zero

Step-by-step explanation:

6 0
3 years ago
Pls help me do absolute VALUE EQUATION<br><br> 3/4I8t-12I=6(t-1)
mrs_skeptik [129]
There is no solution
Distributive property
3/4 x 8t - 12 x 3/4=6 x t - 1 x 6
6t - 9=6t - 6
The 6t being on both sides makes the answer. No solution.
4 0
3 years ago
Determine the intercepts of the line. -7x - 6y = -15
Cerrena [4.2K]

Answer:

(0,5/2) y intercept

(15/7,0) x intercept

Step-by-step explanation:

To find the y intercept, let x = 0 and solve for y

0 - 6y = -15

Divide each side by -6

y = -15/-6

y = 5/2

(0,5/2)

To find the x intercept, let y = 0 and solve for x

-7x - 0 = -15

Divide each side by -7

-7x/-7 = -15/-7

x = 15/7

(15/7,0)

8 0
3 years ago
Read 2 more answers
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