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vlada-n [284]
3 years ago
12

What are the equivalent expressions for aº and a " ? Why do these rules work?

Mathematics
1 answer:
Allisa [31]3 years ago
6 0
Hopefully this helps and makes sense to you if you don’t understand ask another question to me or anyone hehe

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32% of an amount of money is $200. What is the total amount?
Alik [6]
0.32x=200\\x=625

$625.
8 0
3 years ago
Read 2 more answers
Here are two shapes with the same area. Work out the perimiter of the rectangle.
Lilit [14]
So, we know the perimeter is 24 cm. and the top part is the left part, (x) + 2, but remember, we need to have it be a number that, multiplied by 2, is 24. So, using this formula, the length, (top / bottom) is 7, and x = 5. Because 5 + 5 = 10, and when length is +2, it adds up to 14. 10 + 14 = 24. So, length is 7, width, (left, right) is 5.
3 0
3 years ago
A diameter of a circle has enpoints (-2, 10) and (6, -4) in the standard (x, y) coordinate plane. What is the center of the circ
wlad13 [49]

Answer:

The center of the circle is C(x,y) = (2, 3).

Step-by-step explanation:

The center of the circle is the midpoint of the segment between the endpoints. We can determine the location of the center by this vectorial expression:

C(x,y) = \frac{1}{2}\cdot R_{1}(x,y)+ \frac{1}{2}\cdot R_{2}(x,y) (1)

Where:

C(x,y) - Center.

R_{1} (x,y), R_{2} (x,y) - Location of the endpoints.

If we know that R_{1} (x,y) = (-2,10) and R_{2} (x,y) = (6,-4), then the location of the center of the circle is:

C(x,y) = \frac{1}{2}\cdot (-2,10)+\frac{1}{2}\cdot (6,-4)

C(x,y) = (-1, 5) + (3, -2)

C(x,y) = (2, 3)

The center of the circle is C(x,y) = (2, 3).

8 0
3 years ago
Nellle has her hair styled by her hair stylist. The styling costs $85 and Nellie wants to leave a 30% tip. There is a tax rate o
Setler [38]

Answer:

115.60

Step-by-step explanation:

for a tip 85x 0.30=25.50

tax 85x0.06=5.10

total extra money 5.10+25.50=30.60

total money payed 85+30.60=115.60

Hope this helped

Please mark Brainlist

4 0
2 years ago
How many thousands make 30 million? (just curious)
fenix001 [56]

Answer:

30,000 thousands make 30 million

Step-by-step explanation:

Solve by dividing 30 million by 1,000

8 0
3 years ago
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