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ra1l [238]
3 years ago
9

2.3 The diameter of a circle is 8 m long. Calculate its: radius

Mathematics
2 answers:
slavikrds [6]3 years ago
4 0

Answer:

4

Step-by-step explanation:

Diameter is equal to 2r

so,

8÷2=4

xxMikexx [17]3 years ago
4 0

Answer:

4

Step-by-step explanation:

diameter is 2 times greater than radius

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I need help with number 4 I can’t get an answer
Alecsey [184]

Answer:

14.93

Step-by-step explanation:

For this problem you need to know distance formula, which is

d=√(x2-x1)²+(y2-y1)². You'll want to plug in (0,3) and (-2, 9) and go on to plug in all of them at some point. You'll get 6.32 as the distance between (0,3) and (-2, 9), 3.61 as the distance between (-2, 9) and (-4, 6), and 5 as the distance between (-4, 6) and (0, 3). You add them up and get your answer.

7 0
3 years ago
Barb earns 26% commission on each lab manual she sells. If she sells 1200 manuals at $9.95 each, find her commission.
kvasek [131]
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6 0
3 years ago
A boundary stripe 6 in. wide is painted around a rectangle whose dimensions are 120 ft by 230 ft. Use differentials to approxima
Nimfa-mama [501]

Answer:

350 square feet

Step-by-step explanation:

We are given that

Width of strip=6 in

Dimension of rectangle=20 ft\times 230 ft

We know that

Area  of rectangle ,A=xy

Differentiate

dA=\frac{\partial A}{\partial x}x+\frac{\partial A}{\partial y}y

We have \frac{\partial A}{\partial x}=y=230 ft

\frac{\partial A}{\partial y}=x=120

dx=\frac{12}{12}=1 ft

1 ft=12 in

Because 6 in added in both side of breadth

dy=\frac{12}{12}=1 ft

Because 6 in added on both sides of length of rectangle

Substitute the values

dA=230\times 1+120\times 1=350 ft^2

Hence, the number of square feet of paint in the strip=350 square feet

7 0
3 years ago
What is an expression that is equivalent to 10c
slega [8]
Expressions equivalent can be:
-2(5c)
-2*-5c
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3 0
3 years ago
What decimal is equivalent to negative 3 over 8
timurjin [86]

Answer:

-9 / 24

Step-by-step explanation:

<u>Step 1:  Find an equivalent to -3/8</u>

(-3*3) / (8*3)

<em>-9 / 24</em>

<em />

Answer:  -9 / 24

7 0
3 years ago
Read 2 more answers
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