9514 1404 393
Answer:
8.83 × 10⁻³
Step-by-step explanation:
Your calculator can do this for you. Your scientific or graphing calculator can be set to display the answer in scientific notation, if you need that. Any spreadsheet can do this, too.
The formula for a spreadsheet would be =8.65e-3+2.7e-4-9e-5.
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If you want to do it "by hand", you can factor out 10⁻³ to get ...
8.65×10⁻³ +2.7×10⁻⁴ -9×10⁻⁵ = (8.65 +0.27 -0.09)×10⁻³ = 8.83×10⁻³
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<em>Additional comment</em>
Since the values after the first have more negative exponents, those numbers will affect digits farther right than the decimal point in the first number. (You can see this in the sum shown above.) Simply by estimating, you can determine that the answer will be slightly more than 8.6×10⁻³, but not as much as 9.01×10⁻³.
Answer:
27 is the answer
Step-by-step explanation:
Answer:
4 Units
Step-by-step explanation:
EF=x
FG=3x-5
EG=5x−8
Since F is on line segment
EG=EF+FG
5x−8=x+3x-5
5x-8=4x-5
Collect like terms
5x-4x=-5+8
x=3 Units
Therefore:
Answer:
x = 6
Step-by-step explanation:
The line of reflection is x = 6.
Answer:
y = (1/2)x + 2, in which 1/2 represents a fraction.
Step-by-step explanation:
Remember your formula y = mx + b; where m is the slope, and b is the y-intercept.
Now, simply look for the y-intercept (should be 0, 2), and plug in the x value in for the b.
The equation is now y = mx + 2.
For the next part, you'll find the slope; forewarning is that it doesn't matter how you do it, as long as you do it right. You can either use the slope formula, but I like to do rise over run. They're the same thing. If you don't know what rise over run is, look it up, it's pretty easy to understand. If not just do the slope formula.
Anyways, you need to grabs two different points that plot on the line; let's say (0, 2) and (2, 3). If you do the formula it should be (3 - 1) / (2 - 0). This will get you your 1/2.
Plug that into m, and your formula should be y = (1/2)x + 2, where 1/2 is a fraction.