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vazorg [7]
3 years ago
15

Convert this number expressed in standard form to scientific notation. 28,500,000 1. Move the decimal to create the coefficient:

   2.8500000 2. Write in scientific notation:          2.85 × 10x What is the value of x in the scientific notation?
Mathematics
2 answers:
Scilla [17]3 years ago
4 0
It is 10 to the power 7
astra-53 [7]3 years ago
4 0

Answer: The value of x is 7.

Step-by-step explanation:-

Scientific notation is defined as the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power.

For example : 5000 is written as 5.0\times 10^3

As we are given that the value is 28,500,000

This number is written in scientific notation as : 2.85\times 10^{7}

Therefore, the value of x comes out to be 7.

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The point slope form of a line that has a slope of -2 and passes through point (5,-2) is shown below.
Likurg_2 [28]
Insert the point, (5,-2) with the slope of the line to figure out the equation. You can either use point-slope form, or plug it for for slope-intercept form.

Slope-intercept form:
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Add 10 on both sides
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4 0
3 years ago
Y = x² + 6x + 3
olganol [36]

Vertex<em> </em>is at \left(-3,-6\right)

<em>y-intercept</em> is 3.

The parabola <em>opens up</em>.

Step-by-step explanation:

The graph of the equation is hereby attached in the answer area.

Vertex is the point on the parabola where the graph crosses its axis of symmetry. The axis of symmetry here(x =-3), is shown with the dotted line in the graph attached.

<em>y-intercept </em>is defined as the value of y where the graph crosses the y-axis. In other words, when x=0. Putting

And, the graph opens up as shown the graph figure as well. It is also evident from the co-efficient of x in the given equation y =x^{2} + 6x + 3. Here, co-efficient of

So, vertex<em> </em>is at \left(-3,-6\right)

<em>y-intercept</em> is 3.

The parabola <em>opens up</em>.

7 0
3 years ago
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irinina [24]
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8 0
3 years ago
Which of the following ( 15, 20, 30, 57 ) is the product of exactly three different prime numbers?
Andrei [34K]

Answer:

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Step-by-step explanation:

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20=2*2*5, so it's not 20

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57=19*3, so it's not 57

3 0
2 years ago
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