1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ipn [44]
3 years ago
8

When translating a number to the scientific notion (ex: 0.000157), do you count the zero to the left of the decimal point? Like

would the scientific notion of 0.000157 be 1.57 x 10^-4 ? If you could explain how scientific notion works that be great. thanks
Mathematics
2 answers:
tankabanditka [31]3 years ago
8 0
Yeah, you’re right, I like to think that when the number is a decimal and I have to put it in scientific notation the exponent next to the 10 is negative and then when the number is a whole number and I have to change it to scientific notation then the exponent next to the ten is positive.
makvit [3.9K]3 years ago
7 0

Answer:

You do not count the zero to the left of the decimal

Step-by-step explanation:

That zero is just a placeholder as there is nothing to the left of the decimal, you could also write the number as .000157

Your answer is correct, 0.000157 is 1.57x10^-4

Scientific notation is just expressing numbers in their exponential form. The power/exponent is found by counting how many times the decimal has moved to the right or the left.

You might be interested in
A boat is heading towards a lighthouse, whose beacon-light is 126 feet above the water. From point AA, the boat’s crew measures
vredina [299]

Using the slope concept, it is found that the distance from point A to point B is of 887 feet.

<h3>What is a slope?</h3>

The slope is given by the <u>vertical change divided by the horizontal change</u>.

It's also the tangent of the angle of depression.

In this problem, the vertical change is of 126 feet.

At point A, the angle is of 6º, while the horizontal position is of x_A, hence:

\tan{6^\circ} = \frac{126}{x_A}

x_A = \frac{126}{\tan{6^\circ}}

x_A = 1198.8

At point B, the angle is of 22º, while the horizontal position is of x_B, hence:

\tan{22^\circ} = \frac{126}{x_B}

x_B = \frac{126}{\tan{22^\circ}}

x_B = 311.9

Hence, the distance in feet is of:

d = x_A - x_B = 1198.8 - 311.9 \approx 887

More can be learned about the slope concept at brainly.com/question/18090623

6 0
2 years ago
Please help ill mark brainliest​
IgorLugansk [536]

Answer:

i think its 18

Step-by-step explanation:

5 0
3 years ago
WILL MARK BRAINLIEST
Sergeeva-Olga [200]

Answer:

a.$167.03

Step-by-step explanation:

6 0
2 years ago
NEED HELP FINDING SLOPE OF THE LINE
mamaluj [8]

Answer:

slope = - \frac{2}{3}

Step-by-step explanation:

calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 4, 2) and (x₂, y₂ ) = (2, - 2) ← 2 points on the line

m = \frac{-2-2}{2-(-4)} = \frac{-4}{2+4} = \frac{-4}{6} = - \frac{2}{3}

5 0
2 years ago
tamara finds the sum of two number cubes rolled at the same time. the chart below shows all possible sums frim thr 36 possible c
Alla [95]
Im notr sure but if we take the chances that the 4 sum has to be either (1.3) (3.1) (2.2) (2.2) that means its chance is 4/36 for each roll which is also 1/9 ,, we can multiply 1/9 times the roll times ( 252 ) we get =28
8 0
3 years ago
Other questions:
  • 70 points if you help me!!!!!!!!!!!!!!
    14·2 answers
  • What are the multiples of the factors of 15
    6·1 answer
  • Please help quick. Will give brainliest if correct.
    15·2 answers
  • What is the surface area of a cube if the cube has a base of 10ft, 10ft, 10ft
    14·1 answer
  • What is the median value of the data set shown on the line plot?
    14·1 answer
  • Aubree took a taxi from her house to the airport. The taxi company charged a pick-up
    8·1 answer
  • The sum of 5 times a number and 16 is 31.<br> What is the number? <br> Enter your answer in the box.
    7·2 answers
  • Select the correct answer.
    6·1 answer
  • A store sells 6 T-shirts for $58.20. What is the unit cost per T-shirt?
    12·1 answer
  • Elijah’s home is 1.1km from the library
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!