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anyanavicka [17]
4 years ago
12

What is radius and how do I solve it

Mathematics
2 answers:
Nadya [2.5K]4 years ago
6 0

Answer:

a straight line from the centre to the circumference of a circle or sphere.

Step-by-step explanation:

Oksana_A [137]4 years ago
3 0

Answer:

Radius: diameter divided by 2.

Area of a circle: A = pi * radius²

Hope this helped!!  :)

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3. Caleb has $25 to spend on prizes for a game at the school fair. Lip balm costs $1.25 each, and mini-notebooks cost $2.50 each
Snowcat [4.5K]

Answer:

linear equation in Standard form that can be used to determine how many of each prize Caleb can buy is 1.25x+ 2.50y = 25

Step-by-step explanation:

Given:

Total cost spent on prizes for games = $25

Cost of one lip balm = $1.25

Cost of one mini notebook  = $2.50

A) linear equation in STANDARD FORM that can be used to determine how many of each prize she can buy.

Let the number of lip balms be x and the number of mini note books be y. Then

1.25x+ 2.50y = 25

B. Graph the equation using x- and y- intercepts.

Now by trial and error method

1.25(0)+ 2.50(10) = 25

1.25(2)+ 2.50(9) = 25

1.25(4)+ 2.50(8) = 25

1.25(6)+ 2.50(7) = 25

1.25(8)+ 2.50(6) = 25

1.25(10)+ 2.50(5) = 25

1.25(12)+ 2.50(4) = 25

1.25(14)+ 2.50(3) = 25

1.25(16)+ 2.50(2) = 25

1.25(18)+ 2.50(1) = 25

1.25(20)+ 2.50(0) = 25

Thus Caleb can buy 0,2,4,6,8,9,10,12,14,1,6,18,20 lip balms and

0,1,2,3,4,5,6,7,8,9,10 mini note books respectively

Now plotting these value in the graph, we get the below graph

3 0
4 years ago
When graphing y = 2x^2 + 35x + 75, which viewing window would allow you to see all of the intercepts and the minimum as
ArbitrLikvidat [17]

Answer:

  x-axis from -20 to 5; y-axis from -80 to 80

Step-by-step explanation:

The attached graph shows my choice for a viewing window. The closest approximation among your answer choices is ...

  x: -20 to 5

  y: -80 to 80 . . . . . choice A

6 0
3 years ago
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