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murzikaleks [220]
3 years ago
5

Factor each of the following using differences of squares

Mathematics
2 answers:
professor190 [17]3 years ago
8 0
The first is (x+10)(x-10)

The second one is (3x+14)(3x-14)
timofeeve [1]3 years ago
4 0
The first one is (x+10)(x-10)
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Two identical condominiums were built in a new high-rise building. Condo A’s living room is a rectangle 24 ft. long and 18 ft. w
nadezda [96]

Answer:

The perimeter of a rectangular playground is 46 m. ... 46 – 14 = 32 32 / 2 = 16 ... new carpeting for her family room. Her family room is a 12 ft by 21 ft rectangle. ... Charles has a rectangular flower garden that is 5 yd long and 12 yd wide. ... After installing the carpet, Betty decides to also install floor wood molding for her living.

(i just added names for explanation)

6 0
3 years ago
And an electronics warehouse ships TVs and DVD players to retailers all throughout the United States. The weight of three televi
vodomira [7]
X= weight of TV
y= weight of CD

3x+5y= 62.5
3x+ 2y= 52
You can either solve for a variable, or eliminate a variable by subtracting the second equation from the first:

3x + 5y = 62.5
-(3x+2y = 52)
0 + 3y = 10.5, so y = 10.5/3 or 3.5.

Now plug y= 3.5 back into any equation to get x:

3x + 5(3.5) = 62.5
3x + 17.5 = 62.5
3x = 45
x = 15
Always check work. Both equations should be true for x=15, y= 3.5
4 0
3 years ago
PLEASE HELP it should be easy for someone but I can’t do it
-Dominant- [34]

Answer:

Total crackers on the plate are 12

Step-by-step explanation:

Manuel ate crackers = \frac{1}{3}

His brother ate crackers = \frac{1}{4}

Crackers left on the plate = 5

We need to find how many crackers were there on the plate.

Let x be the total crackers on the plate

So, we can write the equation

x-\frac{1}{3}x-\frac{1}{4}x=5

Because 1/3 and 1/4 crackers are eaten and 5 are left so, we subtract 1/3x and 1/4x from x and equal it to 5

\frac{12x-4x-3x}{12}=5\\\frac{12x-7x}{12}=5\\\frac{5x}{12}=5\\x=\frac{5*12}{5}\\x=12

So, we get x = 12

Therefore, total crackers on the plate are 12

8 0
3 years ago
Im stuck between B and D please help
gayaneshka [121]

Answer:

maybe it's D ( not sure tho)

5 0
2 years ago
Read 2 more answers
Use the function r=n-7 to find the value of r when n =10​
harkovskaia [24]

Answer:

r=3

Step-by-step explanation:

if n=10

r=n-7

r=(10)-7

r=3

8 0
3 years ago
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