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Harlamova29_29 [7]
3 years ago
7

Please explain how to get the answer, with step by step explination. I would like to know, so I can do it by my self in the futu

re.

Mathematics
1 answer:
natulia [17]3 years ago
4 0

Answer:

(-8, 135°)

Step-by-step explanation:

(8, -45°) has magnitude 8 and direction -45°.

If we add 180° to the direction and change the sign of the magnitude, we'll have the same point.

(-8, -45° + 180°) = (-8, 135°)

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Ted says that 7 tenths multiplied by 10 equals 70 hundredths. Is he correct? Use a place value chart to explain your answers
shutvik [7]
No he isn't..
. 7×10=7
for each time it's multiplied by ten, the decimal point goes back one.
3 0
3 years ago
A 90 oz. bottle of shampoo is sold for $18.95. What is the price per ounce
Veseljchak [2.6K]

This sets up as a very commonly  used proportion.

90 oz / 18.95 = 1 oz / x             Cross multiply

90 x = 18.95                              Divide by 90

x = 18.95 / 90

x = 0.21 dollars or 21 cents.

So each ounce of shampoo costs 0.21 dollars or 21 cents.

This is a very handy way to check best deals. Stores have trained us for years to believe that the more we buy of a brand, the better the price. It isn't always true. Sometimes buying the  smaller quantity is the better deal. There is only one way to be sure and that's to do a proportion like this one.

Try this is an example. The same company makes a smaller container of shampoo of 45 oz for 9.15. How much is 1 oz and which is the better deal? You should get 0.20333 dollars so this is marginally (just) the better deal.

4 0
3 years ago
The boiling point of water is 212°F. What is this temperature in degrees Celsius? Use the formula C = 59(F – 32), where C repres
vampirchik [111]

Answer:

100

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help <br><br> A. 13<br> B. 26<br> C. 40<br> D. 36<br> D. 41
Morgarella [4.7K]
The value of x is 26.
4 0
3 years ago
Read 2 more answers
Help Me on this palzz
eimsori [14]

Answer:

That should be 11.99+35.50+6.75+3+ 7.15% of EACH of those items added together minus 11.99+35.50+6.75+3+ 6.35% of EACH of the same items added together

6 0
3 years ago
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