Answer:
30
Step-by-step explanation:
For a = <xa, ya> and b = <xb, yb>, the dot product is the sum of products ...
a·b = (xa)(xb) + (ya)(yb)
Substituting the given information, you have ...
a·b = 5·4 + 2·5 = 20 + 10
a·b = 30
_____
Some graphing calculators can do such math. There are also dot product calculators available on the Internet. If you have quite a few of these to calculate, you can put the appropriate formula into a spreadsheet.
Answer:
Presuming she eats the same amount of sweets each day, 9 days
Step-by-step explanation
The order of investment options from least to greatest risk is:
- B rated bond.
- Property.
- Speculative stock.
- Starting a business.
<h3>How risky are some investment options?</h3>
A B rated bond is considered safer than the rest because there is a high chance that the owners of the bond will redeem it. Property is not very risky but can be susceptible to market shocks.
Speculative stock is the third riskiest because its prices are prone to fluctuation. Starting a business is by far the riskiest because a lot of new businesses fail.
Find out more on risky investments at brainly.com/question/25219850.
F(x)= x+13
F(-2)= -2 +13
= 11
You plug in -2 for the x
