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Anna71 [15]
2 years ago
13

Find the area of a sector with an arc length of 40 cm and a radium of 12 cm

Mathematics
1 answer:
bezimeni [28]2 years ago
7 0
The answer would be 480 and you need to do is multiply the two numbers
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Ronald measured a house and its lot and made a scale drawing. The front patio, which is 14 meters wide in real life, is 7 millim
zhannawk [14.2K]

Answer:

2 metre= 1millimetre

Step-by-step explanation:

From the measurement of the house The front patio, is 14 meters wide in real life, is 7 millimeters wide in the drawing

Real life= 14 meters

Drawing= 7 millimeters,

The scale he used is 2 metre= 1millimetre

Which means he magnify the drawing by scale of 2 metre to get the real life structure.

✓Let us clarify it

14 meters = 7 millimeters

2 metre= x millimeter

If we cross multiply

7 millimeters× 2 metre= 14 metre × X millimeters

Make X subject of the formula we have

X= 1millimetres

3 0
3 years ago
What is the volume of the triangular prism​
mestny [16]

Answer:

  • 308 cm³

Step-by-step explanation:

<u>The volume is:</u>

  • V = Bl = 1/2(ah)l
  • V = 1/2(7*8)*11 = 308 cm³
3 0
3 years ago
Read 2 more answers
You can upgrade lighting at your factory to LED bulbs that cost $6.95 each and last an average of 5 years. It costs S3 in labor
marshall27 [118]

Answer:

11.95 dollars

Step-by-step explanation:

Cost of one LED bulb = 6.95 dollars

Cost of changing one bulb = 3 dollars

Life of each bulb = 5 years.

In 10 years, only one time after 5 years the bulbs would have been changed

Hence cost of 100 lamps = 695 and

cost of changing once = 500

Total cost = 1195 dollars for 11 years

Divide this by 10 years to get average cost per year

Cost of 100 lamps per year = 1195/100 = 11.95 dollars


8 0
3 years ago
Evaluate.<br><br> 10^2 + 6 ⋅ 7 + 8<br><br> A. 70<br><br> B. 142<br><br> C. 150<br><br> D. 190
Kaylis [27]
I hope this helps you




100+42+8



100+50


150
8 0
2 years ago
Find JL if JK=17-x, KL=2x-16, and K is the midpoint if JL
Vlada [557]
JL=JK+KL\\&#10;JL=17-x+2x-16\\&#10;JL=x+1
3 0
3 years ago
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