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Sloan [31]
3 years ago
15

I give brainlist helPPPPPP

Mathematics
1 answer:
m_a_m_a [10]3 years ago
8 0

Answer:

Step-by-step explanation:

25.57, 123/5, 49/2, 241/10

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Factor the polynomial x2 + 18x + 81 as the product of two binomials
hram777 [196]

Answer:

(x+9)^2

Step-by-step explanation:

We have the polynomial x^2 + 18x + 81 and are being asked to factor this into two binomials.

A rule that I follow is what two numbers multiplied make c (in this case 81) and when added make b (in this case is 18).

So what two numbers when :

A. Multiplied make 81

B. Added make 18

This would be 9.

Now that we have the answer, we can put it into binomials.

(x + 9)(x + 9)

Since these are the same, we can combine it and make it into one.

(x+9)^2

3 0
3 years ago
What is the value of x? PLEASE HELP
Natali5045456 [20]

Answer:

4

Step-by-step explanation:

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3 years ago
You have 800 quarter-inch-long beads. if you use them all to make 16 bracelets, what will be the rate of beads per bracelet
Murljashka [212]
50 bead per bracelet 
5 0
3 years ago
Hailey cuts a 7-inch square piece of plywood for a birdhouse. She rotates the piece 90° counterclockwise. What is the length in
Readme [11.4K]

Answer:

\huge\boxed{7\  \text{inches}}

Step-by-step explanation:

As I mentioned earlier with a single side (line), rotations do not change the size of something. Only dilations do that. This goes for both lines AND shapes.

However, if the question said she dilated the piece, then yes, the length in inches would be different. However, rotation just changes the position and nothing happens to the length.

Hope this helped!

3 0
3 years ago
A test that is valid must have scores that fit a normal curve A be reliable B be normed on a random sample C predict future beha
sasho [114]

Answer:

A: be reliable

Step-by-step explanation:

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3 years ago
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