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e-lub [12.9K]
2 years ago
11

Write a word phase for the algebraic expression 2t - 9

Mathematics
1 answer:
Hitman42 [59]2 years ago
6 0
The product of 2 and a number t minus 9
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Please help me in answers 3 and 5
Mama L [17]
3. The correct answer is 2) 3m² - 6. 
(2m² + 3m - 4) + (m² - 3m - 2)   Given
2m² + m²   These numbers are like terms, because they both end in m².
3m²   Since m² can also be written as 1m², and 2 + 1 = 3, this is the sum of 2m² and m² (1m²).

3m + (-3m)   These numbers are like terms, because they both end in m. -3m is negative because it was being subtracted.
0   Since we're adding a negative, it's the same as subtracting something. 3m - 3m is 0.

-4 + (-2)   These numbers are like terms, because they are both simple integers with no variable. Once again, we're adding a negative because it was being subtracted.
-6   -4 + (-2) is the same as -4 - 2, which is -6. Remember that when you're subtracting from a negative, the number seems to become larger. For instance, 1 - 1 is 0, but -1 - 1 is -2.

3m² - 6   Put all of the terms together. We don't have to write out 0, because 0 is the same as nothing.

5. This one is a bit unclear, but I think that the correct answer is 2) II and IV. The slope formula can be written as y = mx + b, where m is the slope and b is the y-intercept, or the place where the line crosses the y-axis. In this equation, b is 2, which is a positive number, so the y-intercept shifts upward. This means that the answer is either 2 or 3. As for |x - 6|, the way this is written makes the equation somewhat confusing. I believe that the bars are meant as absolute value bars, which, put simply, turn negatives into positives. This means that this part is x + 6, so the line shifts to the right. However, if they were intended as parentheses, the line would shift to the left, because we're subtracting 6 from x. I'm almost certain those were intended as absolute value bars, though, so I think that the answer is 2.

Hope this helps!
4 0
3 years ago
Three times four, plus two to the third power
Nadya [2.5K]
It is 20.because 3×4+2cubed is 20
^
=12 ^
2×2×2=8 so 8+12=20
8 0
3 years ago
Read 2 more answers
Point (a,b) is reflected about the x-axis. The resulting point is then reflected about the y-axis to produce a final point. Whic
Mekhanik [1.2K]

Answer:

A 180 degree rotation.

Step-by-step explanation:

I took the quiz.

7 0
2 years ago
When kettle is full of water it has a mass of 2900 grams.
Ratling [72]
Ok what do we know.

when the kettle is full its 2900g
when its half full is 2050g

that means that half the weight of water in the kettle was 850g so the other remaining half has to be 850g

850+850=1700

1700g is the weight of the water
but we want to know the weight of the kettle when its empty so you had 2900g when the kettle was full lets say you poured all 1700g of the water out you would be left with...

2900-1700= 1200g
this means the kettle when empty weighs 1200g 

3 0
3 years ago
What is 5/9 of 72 can someone get back to me asap because I have my gases in a bit
galben [10]
The answer is 40. 5/9 of 72 is 40
3 0
3 years ago
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