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pogonyaev
4 years ago
8

Factor completely.

Mathematics
2 answers:
Alona [7]4 years ago
8 0
The correct answer is D as it matches the first equation

the answer looks like this in number form <span>(<span><span>3x</span>+5</span>)</span><span>(<span><span>3x</span>−5</span><span>)
original equation </span></span>9* x^2-25
lidiya [134]4 years ago
4 0

9 \times {x}^{2}  - 25 \\  = 9 {x}^{2}  - 25 \\  = (3x - 5)(3x + 5)

Answer is D.

Hope this helps. - M
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How do I determine which is y=-1/3x+2?
Jlenok [28]

Step-by-step explanation:

This is a linear equation in slope intercept form which is

y = mx + b

where m is the slope and b is the y intercept.

The equation

y =  -  \frac{1}{3} x + 2

Has a slope of -1/3 so this means that the slope will be decreasing. A negative linear equation increases as we go left. and decreases as we go right. The y intercept is 2. So this means the graph must pass through (0,2) and when x=0, y must be 2.

In other words, look for a line that the y values increase as we go left and decrease we go right. Also look for a point (0,2) and make sure the graph pass through it.

6 0
3 years ago
the remains of an ancient ball court include a rectangular playing alley with a perimeter of about 48 M. the length of the alley
Firdavs [7]

Answer:

Length is 20 m and width is 4 m.

Step-by-step explanation:

Given:

Perimeter of the rectangular alley, P=48\textrm{ m}

Length is 5 times the width.

Let width be x.

So, as per question,

Length,l = 5x

Now, perimeter of rectangle is given as:

P=2(l+b)

Plug in 48 for P, 5x for l and x for b.

48=2(5x+x)\\48=2(6x)\\48=12x\\x=\frac{48}{12}=4

Therefore, width is 4 m.

Length is 5x=5\times 4=20 m.

8 0
4 years ago
Solve these questions. Pls show your work.
zhannawk [14.2K]
I solved it but don’t know how to show my work
6 0
3 years ago
Read 2 more answers
The difference of three times a number x and 4
ra1l [238]

Answer:

3x - 4

Step-by-step explanation:

Difference means subtraction.

Times means multiplication.

Three times a number x; 3 * x = 3x

3x - 4

Best of Luck!

8 0
4 years ago
Read 2 more answers
6/36 simplified and 2/36 simplified
Stolb23 [73]
6/36=1/6 or 0.166
2/36=1/18 or 0.555
7 0
3 years ago
Read 2 more answers
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