All categories

3 years ago

Scientific notation 9.78 × 10^5 - 732,000 It has to be either 2.46 × 10^5 or 2.46 × 10^3

Mathematics

1 answer:

Morgarella [4.7K]3 years ago

3 0

Answer:

$2.46\times 10^5$

Step-by-step explanation:

$9.78 \times 10^5 - 732,000\\= 9.78 \times 10^5 - 7.32 000\times 10^5\\= 9.78 \times 10^5 - 7.32\times 10^5\\= 2.46\times 10^5$

You might be interested in

Helppppppp pleaseeee

Law Incorporation [45]

Answer:

Step-by-step explanation:

$E=\dfrac{1}{2}mv^{2}\\\\\\2E = mv^{2}\\\\\dfrac{2E}{m}=v^{2}\\\\\\\sqrt{\dfrac{2E}{m}}=v$

4 0

3 years ago

Yahoo creates a test to classify emails as spam or not spam based on the contained words. This test accurately identifies spam (

Amiraneli [1.4K]

Answer and Step-by-step explanation:

The computation is shown below:

Let us assume that

Spam Email be S

And, test spam positive be T

Given that

P(S) = 0.3

$P(\frac{T}{S}) = 0.95$

$P(\frac{T}{S^c}) = 0.05$

Now based on the above information, the probabilities are as follows

i. P(Spam Email) is

= P(S)

= 0.3

$P(S^c) = 1 - P(S)$

= 1 - 0.3

= 0.7

ii. $P(\frac{S}{T}) = \frac{P(S\cap\ T}{P(T)}$

$= \frac{P(\frac{T}{S}) . P(S) }{P(\frac{T}{S}) . P(S) + P(\frac{T}{S^c}) . P(S^c) }$

$= \frac{0.95 \times 0.3}{0.95 \times 0.3 + 0.05 \times 0.7}$

= 0.8906

iii. $P(\frac{S}{T^c}) = \frac{P(S\cap\ T^c}{P(T^c)}$

$= \frac{P(\frac{T^c}{S}) . P(S) }{P(\frac{T^c}{S}) . P(S) + P(\frac{T^c}{S^c}) . P(S^c) }$

$= \frac{(1 - 0.95)\times 0.3}{ (1 -0.95)0.95 \times 0.3 + (1 - 0.05) \times 0.7}$

= 0.0221

We simply applied the above formulas so that the each part could come

8 0

3 years ago

Please help me with this

DiKsa [7]

Answer:

5575.28

Step-by-step explanation:

Sphere volume: (4/3*3.14) multiplied by 11x11x11

Hope this helps :D

8 0

3 years ago

The area of the circle above is 1926.5 unit 2 what is the circumference?

Stolb23 [73]

Answer:

The circumference is 155.49 unit

Step-by-step explanation:

First we need to know the formulas of the area and the perimeter

π = 3.14

a = 1926.5 u²

a = π * r²

p = 2 π * r

First we have to clear the r

a = π * r²

r = √(a * π)

r = √(1926.5 / 3.14)

r = √613.535

r = 24.76

Now that we got r we can calculated the perimeter

p = 2 π * r

p = 2 * 3.14 * 24.76

p = 155.49

3 0

3 years ago

Given that Ray AB is an angle bisector, solve for x. Show your work for full credit

vovangra [49]

4x + 1 = 33
4x = 32
x = 8

5 0

3 years ago