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Serjik [45]
2 years ago
8

Which of the following expressions is written in scientific notation

Mathematics
1 answer:
nata0808 [166]2 years ago
7 0
Maybe 6788654.57777-33554-3555+6788
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Let f(x) = x2 − 3x − 7. Find f(−3)
uranmaximum [27]
Substituting -3 for x, we have:  (-3)^2-3*-3-7.  This simplifies to 9+9-7, or 11.
3 0
2 years ago
Also may i have help with this one
mote1985 [20]
The answer should be 11 since adding all the x’s up before 13 equals 11
4 0
2 years ago
I need help on 6-98 can you please help me
OLga [1]
Molly got 20 because she did not follow the order of operations, so this is incorrect. Nancy got the correct answer because she multiplied 4 * 3, and then added 2, giving her 14. Molly added 3+2, and multiplied that by 4. Nancy is correct with 14.


4 0
2 years ago
What is 15 5/7+3/7?<br> i need help!
kobusy [5.1K]

Answer:

16 1/7

Step-by-step explanation:

simple add

start with the fractions

5/7+3/7 = 8/7

simplify 1 1/7

add your whole numbers 15+1= 16 and the add your fraction 16+1/7= 16 1/7

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2 years ago
Lisa is now 6 years older than Cheryl. In two years , Lisa will be twice as old as cheryl. How old is Lisa now ?
Tanzania [10]
I hope this helps you

5 0
2 years ago
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