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wel
3 years ago
9

Factor by using the perfect-square trinomial 64x2 - 144x + 81

Mathematics
1 answer:
Tom [10]3 years ago
4 0

Answer:

the answer is -34

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Select the postulate that proves this fact. If G and H are different points in plane R, then a third point exists in R not on .
lara31 [8.8K]
B posulate 1a <span> a plane contains at least three points not all on one line .</span>
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3 years ago
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In a collision, a 5 kg mass moving at 2m/s transfers all of its momentum to a 1 kg mass. What is the velocity of the 1kg mass af
statuscvo [17]
Answer:
velocity = 10 m/sec in the same direction as the first body did

Explanation:
The momentum of the body can be calculated as follows:
momentum = mass * velocity

For the first body, we have:
mass = 5 kg
velocity = 2 m/sec
momentum = mass * velocity
momentum = 5 * 2 = 10 kg.m/sec

We know that this momentum is transferred completely to the second body

For the second bode, we have:
momentum = 10 Kg.m/sec
mass = 1 kg
momentum = mass * velocity
10 = 1 * velocity 
velocity = 10/1
velocity = 10 m/sec

Finally, we should get the direction of the motion:
Both the velocity of the first and second bodies have positive values. Therefore, the second body is moving in the same direction as the first body did.

Hope this helps :)
6 0
3 years ago
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Jen simplified a radical expression. Her work is shown.
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Answer:

im taking the same test lol

Step-by-step explanation:

6 0
3 years ago
1/3× 21/4-11/2÷22/5?? .btw they are improper fractions​
IceJOKER [234]
<h3>Solution:</h3>

\frac{1}{3}  \times  \frac{21}{4}  -  \frac{11}{2}  \div  \frac{22}{5}  \\  =  \frac{1}{3}  \times  \frac{21}{4}  -  \frac{11}{2}  \times  \frac{5}{22}  \\  =  \frac{1}{3}  \times  \frac{21}{4}  -  \frac{5}{4}  \\  =  \frac{7}{4}  -  \frac{5}{4}  \\  =  \frac{2}{4}  \\  =  \frac{1}{2}

<h3>Answer:</h3>

\frac{1}{2}

4 0
3 years ago
Solve the inequality x - 4 &lt; -3. Then graph the solution set. Show your work. ​
kari74 [83]

Answer:

x < 1

Step-by-step explanation:

x - 4 < - 3

+ 4    +4                        Do inverse operations by adding 4 on both sides

   x < 1

Therefore, the answer is x < 1.

(It isn't allowing me to attach a photo but I am just going to try make a visual of the graph below)

<------------------------------o------------------>

-4    -3    -2    -1     0    1     2    3      4

The circle is open because based on the concept that in inequalities, less/greater than and/or equal to (such as these ≥ ≤ ) signs are graphed with closed circles, while less/greater than (like these > <) signs are graphed with open circles. The direction of the arrow is moving to the left on the number line because all possible values for x would be less than 1. When graphing the inequality you would use a solid line rather than a dashed line (I had to improvise since I could not attach an image).

4 0
3 years ago
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