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JulsSmile [24]
2 years ago
15

Answer this please please please please please ​

Mathematics
1 answer:
Sergio [31]2 years ago
8 0

Answer:

4.5 cm

Step-by-step explanation:

Circunference = 2π*radius = 2*3.14*radius = 6.28*radius = 28.26

so radius = 28.26/6.28 = 4.5 cm

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determine the intercepts of the line that correspond to the following table of values. -14,9 -10,18 -6,27
Nataliya [291]

I'll need to assume that your "-14,9" means (-14,9); if so, please use parentheses next time to indicate that you're sharing the coordinates of a point.

As we go from (-14,9) to (-10,18), x increases by 4 and y increases by 9.  Thus, the slope of this line is m = rise / run = 9/4.

We want the intercepts of this line.  Let's use the slope-intercept form y = mx + b.  Substituting the given info:  -10 for x and 18 for y, and m = 9/4, we get:

18 = (9/4)(-10) + b, where b is the y-intercept.

Solving for b, we get 18 + 90/4 = (72+90)/4 = 162/4, or 81/2.

Then b = 81/2, and the equation of the line is y = (9/4)x + 81/2.

Now find the x-intercept.  To do this, let y = 0; then (9/4)x = -81/2,  Mult. both sides by 4 to eliminate the fractions:  9x = -162, or x = -18.  The x-intercept is (-18,0) and the y-intercept is (0,81/2)

8 0
3 years ago
Please help! Thank you!
Schach [20]

Answer:

\huge \boxed{ \boxed{ \sf \: y = x + 15}}

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know:</h3>
  • linear equation
  • linear equation word problems
  • PEMDAS
<h3>tips and formulas:</h3>
  • linear equation:y=mx+b
<h3>let's solve:</h3>

all we need to care about the middle condition which is

<h3>the new test score is 15 points more than the original score</h3>

given that

original score is x

New score is y

if you pay attention to the given condition

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therefore

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the equation is

<h2>y=x+15</h2>

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3 years ago
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liubo4ka [24]

Answer:

A cylinder has parallel discs bases that are congruent in size.

Step-by-step explanation:

5 0
2 years ago
The chicken pen held 7 chickens. Each chicken lay 6 eggs a day. How many eggs world they get altogether after 30 days.
Tcecarenko [31]

Answer:

1260 eggs in 30 days

7*6=42

42*30=1260

3 0
2 years ago
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Amy and two of her friends eat lunch at a restaurant. Their bill, including tax, comes to $27.63. They decide to split the bill
Art [367]

Answer:

Step-by-step explanation:

$27.63 / 2 = $13.82

$13.82 * 0.20 = $2.76

$13.82 + $2.76 = $16.58

6 0
3 years ago
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