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Y_Kistochka [10]
3 years ago
7

Write an addition expression to describe each situation. Then find each sum.

Mathematics
2 answers:
Monica [59]3 years ago
4 0

Answer:

11 dollars

Step-by-step explanation:

Goger would owe his mom $11. (-6)+(-5)=11

liubo4ka [24]3 years ago
3 0
Roger=(-5)+(-6)=-11\\\\Ans.\ \ \ Roger\ owes\ his\ mum\ \$11.
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F(x)=8_-4x-x^3. g(x)=x^2+7x-9. Find f(x)+g(x)
11111nata11111 [884]

(8 - 4x -  {x}^{3} ) + ( {x}^{2}  + 7x - 9) \\  =  -  {x}^{3}  +  {x}^{2}  - 4x + 7x + 8 - 9 \\  =  -  {x}^{3}  +  {x}^{2}  + 3x - 1
(8x - 4x -  {x}^{3} ) + ( {x}^{2}  + 7x - 9) \\  -  {x}^{3}  +  {x}^{2}  + 8x - 4x + 7x - 9 \\  -  {x}^{3}  +  {x}^{2}  + 11x - 9
The answer is either B, and you forgot to put in the ^2 in the answer choice, or C, and you forgot to put an x where there is a _ in the question.

Check the actual question (the one you recieved, not the one posted here) and see where the mistakes are. If f(x) = 8x - 4x - x^3, then your answer is C. However, if B is actually -x^3 + x^2 + 3x - 1, then the answer is B.
7 0
3 years ago
Assume that y varies directly with x. If y=2/5 when x=1/3, find y when x=1/4. Enter in any fractions using a / (e.g. "1/2" is th
Oxana [17]

x=3/15 thus y=6/15 If x=1/4 then y =2/4

7 0
2 years ago
Whats 5/6 + 1/2 plz i am a starter​
Firdavs [7]
In exact form it would be 4/3
3 0
3 years ago
Read 2 more answers
In 2 hours, 305 cans at a factory can be filled. At that
svet-max [94.6K]

Answer:

The answer is 915

Step-by-step explanation:

Because if you add 305 three times you get the correct answer

hope this helps

5 0
3 years ago
Read 2 more answers
What is the missing length?
mamaluj [8]

Answer:

13.2''

Step-by-step explanation:

lets ? be x

x² + 15² = 20²

x² = 20² - 15²

x = √175

x = 13.2''

so missing length = 13.2''

5 0
2 years ago
Read 2 more answers
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