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GaryK [48]
3 years ago
9

180/9times10^-5 what’s the answer to this in scientific notation

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
7 0

Answer:

180/9= 20

20x10^-5= 0.00020

Step-by-step explanation:

Move the decimal point 5 times to the left :)

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Fill in the blanks below in order to justify whether or not the mapping shown
MrRa [10]

Answer:

wheres the picture?

Step-by-step explanation:

6 0
3 years ago
Could someone please help me
spin [16.1K]

Answer:

A is correct since,

x>-3 and x<1

x=(-2,-1,0)

|x+1|<2

|-2+1|<2

|-1|<2

1<2

|-1+1|<2

|0|<2

0<2

|0+1|<2

|1|<2

1<2

Therefore A is correct

please mark me brainliest

8 0
2 years ago
Which answer is the approximate standard deviation of the data set?
Ierofanga [76]

Answer:  A. 6.5

Step-by-step explanation:

Here, the given set = { 15, 19 3, 12, 17, 2, 2, 8}

Mean, \overline{ x} = \frac{15+19+3+12+17+2+2+8}{8} = \frac{78}{8} = 9.75

Number of elements, n = 8

\frac{\sum (|x-\overline{x}|)^2}{n}=42.4375

Thus, the standard deviation, \sigma =\frac{\sqrt{\sum(|x-\overline{x}|)^2} }{n}=\sqrt{\frac{339.5}{8}}=\sqrt{42.4375} = 6.51440711\approx 6.5

⇒ Option A is correct.

4 0
4 years ago
Read 2 more answers
Someone help me please. I don't just want the answer, I need an explanation on how it's done too.​
NARA [144]

Answer:

Below.

Step-by-step explanation:

f) (a + b)^3 - 4(a + b)^2  

The (a+ b)^2 can be taken out to give:

= (a + b)^2(a + b - 4)

= (a + b)(a + b)(a + b - 4).

g)  3x(x - y) - 6(-x + y)

=  3x( x - y) + 6(x - y)

= (3x + 6)(x - y)

= 3(x + 2)(x - y).

h) (6a - 5b)(c - d) + (3a + 4b)(d - c)

=  (6a - 5b)(c - d) + (-3a - 4b)(c - d)

= -(c - d)(6a - 5b)(3a + 4b).

i)  -3d(-9a - 2b) + 2c (9a + 2b)

= 3d(9a + 2b) + 2c (9a + 2b)

=  3d(9a + 2b) + 2c (9a + 2b).

= (3d + 2c)(9a + 2b).

j)  a^2b^3(2a + 1) - 6ab^2(-1 - 2a)

=  a^2b^3(2a + 1) + 6ab^2(2a + 1)

= (2a + 1)( a^2b^3 + 6ab^2)

The GCF of a^2b^3 and  6ab^2 is ab^2, so we have:

(2a + 1)ab^2(ab + 6)

= ab^2(ab + 6)(2a + 1).

4 0
3 years ago
martin reads 19 pages of a novel in 12 minutes. complete the proportion and use it to find x, the number of pages he reads in 42
Korvikt [17]

Answer:

67 pages in 42 minutes

Step-by-step explanation:

3 0
3 years ago
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