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Gelneren [198K]
3 years ago
14

Which of the following is a true polynomial identity?

Mathematics
1 answer:
AlladinOne [14]3 years ago
5 0
C or d i think is the correct answer
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What is the answer because i need help with it
DENIUS [597]

Answer:14

Step-by-step explanation:

He takes 2 a week so 2 times 7 is 14

7 0
2 years ago
3.) What must be the value of b to make the statement true?
cricket20 [7]
Answer= 7
Explanation: combine all like numbers
5-b+4-2=0
5-2+4=7
7-b=0
Then you can tell the answer is 7 because that is the only thing that can replace b and equal 0
7 0
3 years ago
Help pls!!!!!!!!!!!!!!!!!
const2013 [10]

Answer: just turn them into decimals and use a calculator then turn them back into fractions in simplified form

Step-by-step explanation:

7 0
3 years ago
A certain jet can reach an altitude of 8000 ft while flying 16000 ft through the air. what is the angle of the elevation that th
irina1246 [14]

Answer:

27 degrees

Step-by-step explanation:

First, we can draw this out. Since the altitude is 8000, we can make that the height, and it goes 16000 feet through the air, that can be the length. I have drawn this out, as shown in the image. Note that when drawing, because the airplane is going up and forward, that path should represent the hypotenuse. The angle of elevation is the angle connecting the length and the path, as shown by the angle x in the picture.

We know than tan(x) = opposite/adjacent, so tan(x) here = 8000/16000 = 1/2. Then, arctan(1/2) =x = 27 degrees

4 0
2 years ago
What does -2(-5x+9)-9x equal
Ann [662]
-2(-5x+9)-9x
-2(-5x)+-2(9)-9x
10x-18-9x
+9        +9
19x=-18
----    ----
19     19
x=-1.05
7 0
3 years ago
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