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KonstantinChe [14]
3 years ago
14

A plant cell has a length of 0.000085 meters. Which is this length written in scientific notation?

Mathematics
1 answer:
Komok [63]3 years ago
4 0

Answer:

Step-by-step explanation:

move the decimal point to the right untill you get a number less than or equal to 10. times it by 10 and put how many times you moved the decimal point for the power to multiply.

8.5x10x^5 (to the 5th power)

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This my last one help
Lerok [7]

Answer:

A2 = 120

A3 = 60

A5 = 60

A6 = 120

Step-by-step explanation:

Angle 1 and 2 are supplementary, so A2 = 180 - 60, which is 120.

Angle 1 and 3 are vertical angles, which are always the same measure.

Angle 5 is alternate interior angles with 3, which means it is also 60.

Angle 6 is alternate interior angles with 4, which means it is 120.

3 0
3 years ago
Which shows the expression below simplified? 0.00028 ÷ (7 × 10-4)
Katyanochek1 [597]
0.\underbrace{00028}_{\rightarrow5places}=28\times10^{-5}\\\\0.00028:(7\times10^{-4})=\dfrac{28\times10^{-5}}{7\times10^{-4}}=\dfrac{28}{7}\times\dfrac{10^{-5}}{10^{-4}}\\\\=4\times10^{-5-(-4)}=4\times10^{-5+4}=\huge\boxed{4\times10^{-1}}\leftarrow\boxed{b.}\\\\used\ \dfrac{a^n}{a^m}=a^{n-m}
6 0
3 years ago
Two lines are perpendicular, and neither line is horizontal. Which of the following is not necessarily true of the lines?
musickatia [10]
I think the correct answer from the choices listed above is option C. <span>Two lines are perpendicular, and neither line is horizontal so it must be that the slopes of the lines are opposite reciprocals, one slope is positive and the other has a negative slope. Having different slopes so they should intersect the y-axis at different values.</span>
7 0
3 years ago
The diameter of the base of the cone measures 8 units. The height measures 6 What is the volume of the cone? O 24t cubic units 3
polet [3.4K]

Answer:

32π cubic units

Step-by-step explanation:

Given: r=4, h=6, v=?

Volume of cone: v=(h*πr²)/3

Substitution: v=(6*π*4²)/3

v=2*π*16

v=32π unit³ or approx. 100.530965 unit³

4 0
3 years ago
Sarah, amy and liam stand on some weighing scales two at a time.here are the measurements:sarah and amy 70kgsarah and liam 80kgl
OLga [1]
A+s=70, s+l=80, l+a=80

from the first s=70-a which makes the second:

70-a+l=80

-a+l=10

a=l-10 which makes the third:

l+l-10=80

2l-10=80

2l=90

l=45

So Liam weighs 45 kg.
5 0
4 years ago
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