3 years ago

Write 0.00405 in scientific notation

Mathematics

2 answers:

jeka943 years ago

7 0

Answer:

4.05×10⁻³ is the a.

dolphi86 [110]3 years ago

3 0

Answer:

4.05×10⁻³

Step-by-step explanation:

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Factor 21a–27.

Ganezh [65]

Answer:

3(7a - 9)

Step-by-step explanation:

21a–27

3*7*a - 3*9

Factor out 3

3(7a - 9)

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If there 3 feet in a yard and a football field is 100 yards long how long is the football field in feet

givi [52]

300 because you have to multiply 100 and 3

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Write an equation in slope-intercept form for the line that passes through the

Pavlova-9 [17]

Make slope intercept
3x - y = 5
3x = y + 5
y = 3x - 5
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Y = 3x + b
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3 years ago

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Simplify the following expression:<br><br> (4x+8) - 3(x+1)

Umnica [9.8K]

Answer:

x + 5

Step-by-step explanation:

$4x + 8 + (-3)(x) + (-3)(1)$
$4x + 8 -3x -3$
$(4x-3x) + (8-3)$
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The recursive rule for a sequence is shown.an=an−1+9a1=21 what is the explicit rule for this sequence?

bixtya [17]

Answer:

Meaning of Explicit rule , is the general rule for a sequence.

The given sequence is defined as,

$a_{n}=a_{n-1}+9a_{1}-21$ ----(1)

Common Difference(d) of an airthmetic Sequence= N th term - (N-1) th term

$=a_{n}-a_{n-1}\\\\=a_{n-1}-a_{n-2}$

Equation 1 can be written as,

$a_{n}-a_{n-1}=9 a_{1}-21\\\\ d =9a_{1}-21$

General rule or explicit rule for this sequence is given as:

$a_{n}=a_{1} +(n-1)d\\\\a_{n}=a_{1}+(n-1)(9a_{1}-21)\\\\a_{n}=a_{1}+9na_{1}-21 n-9a_{1}+21\\\\a_{n}=-8a_{1}+21+n(9a_{1}-21)$

6 0

3 years ago

Write 0.00405 in scientific notation​

Write 0.00405 in scientific notation