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2 years ago

A chord 12cm long subtends an angle of 40° at the centre of the circle. calculate the radius of the circle.

Mathematics

1 answer:

kramer2 years ago

5 0

Ok 12cm 40• is 50 minutes

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3 - 2(b - 2) = 2 - 7b<br> b =<br><br><br> Please show work

Firdavs [7]

3- 2b +4 = 2-7b
3+4 = 2 - 5b
7 = 2 -5b
5 = -5b
-5b /-5 = -1
b = -1

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3 years ago

The equation for line A is y = -2/3 x -4. Line A and Line B are perpendicular and the point ( -2 , 1) lies on Line B. Write the

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Step-by-step explanation:

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3 years ago

3 to the fourth power +9

Igoryamba

Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

Steffie makes a scale drawing for a crate with the demensions 15 inches long by 12 inches wide. Her scale factor is 1:3. Brian m

rodikova [14]

Answer:

Dimensions → (5 inches × 4 inches)

Step-by-step explanation:

Scale factor used for the drawing by Steffie = $\frac{1}{3}$

Since, scale factor = $\frac{\text{Dimension of the drawing}}{\text{Actual dimension}}$

For Steffie,

Actual length of the crate = $\frac{\text{Dimension of the drawing}}{\text{Scale factor}}$

= $\frac{15}{\frac{1}{3}}$

= 45 inches

Actual width of the crate = $\frac{12}{\frac{1}{3} }$

= 36 inches

Since Brian used the scale factor = $\frac{1}{9}$

Length of the drawing = Actual length × Scale factor

= 45 × $\frac{1}{9}$

= 5 inches

Width of the drawing = Actual width × Scale factor

= 36 × $\frac{1}{9}$

= 4 inches

Therefore, dimensions of the drawing made by Brian are (5 inches × 4 inches)

6 0

3 years ago