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ValentinkaMS [17]
3 years ago
15

Which number is not written in scientific notation??

Mathematics
1 answer:
DerKrebs [107]3 years ago
3 0
The answer should be '0' because if you multiply anything times '0' it is still '0'.
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Which expression is equivalent to 7(7y)?
Elis [28]

Answer:

49y

Step-by-step explanation:

7 x 7 x y= 49 x y = 49y

7 0
3 years ago
Each week, Darin's Lawn Service mows 90 lawns in 45 hours at a housing c
sweet [91]

9514 1404 393

Answer:

  6 h

Step-by-step explanation:

The bottom number in the table is half the top number. The missing value is 6 (hours).

__

I like to put the variable in the numerator of a proportion. Here, we can write it as ...

  t/12 = 45/90

Multiplying by 12 gives ...

  t = 12(45/90) = 12(1/2) = 6

It will take Darin 6 hours to mow 12 lawns.

4 0
3 years ago
(x+5)(x+4)(x-2)-(x^2+11x-9)(x+1)+5x^2
Luda [366]
(x+5)•(x+4)•(x-2)•(x2+11x-9)•(x+26)
STEP
2
:
Equation at the end of step 2

(((x+5)•(x+4)•(x-2))•(x2+11x-9))•(x+26)
STEP
3
:
Equation at the end of step 3

((x+5)•(x+4)•(x-2)•(x2+11x-9))•(x+26)
STEP
4
:
Trying to factor by splitting the middle term

4.1 Factoring x2+11x-9

The first term is, x2 its coefficient is 1 .
The middle term is, +11x its coefficient is 11 .
The last term, "the constant", is -9

Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9

Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is 11 .

-9 + 1 = -8
-3 + 3 = 0
-1 + 9 = 8

Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored

Equation at the end of step
4
:

(x+5)•(x+4)•(x-2)•(x2+11x-9)•(x+26)
6 0
3 years ago
Read 2 more answers
No clue what to do. show all steps too please. thanks. HELP DUE NOW!!!
dangina [55]
An isosceles triangle has two equal sides.
a= one equal side
b=base

b+2a=35
a=b+4
b+ 2(b+4)=35
b+2b+8=35
3b+8=35
3b=27
b=9
a=13
4 0
3 years ago
Dan is a software salesman. His base salary is $1700, and he makes an additional $120 for every copy of History is Fun he sells.
sashaice [31]
We know that P is 1700, plus 120 for every copy of the book he sells.  As a result, P=120N+1700.  If N=29, we have P=120*29+1700, or P=3480+1700, so P=5180.
3 0
3 years ago
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