2 years ago

Test tomorrow and I need this to make sense please

Mathematics

1 answer:

GarryVolchara [31]2 years ago

7 0

x=-4

Step-by-step explanation:

see the picture for full solution

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For a relation where y is a function of x, y = 4 when x = 6. Which of the following does not represent another possible mapping

hodyreva [135]

Answer: D. X = 6 maps to y = 2

Step-by-step explanation:

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3 years ago

A circle has a radius of 10 inches. Find the approximate length of the arc intersected by a central angle of 2π/3

Aleksandr-060686 [28]

Answer: Option 'C' is correct.

Step-by-step explanation:

Since we have given that

Radius of circle = 10 inches

Central angle is given by

$\frac{2\pi }{3}$

As we know the formula for " Length of an arc " :

Length of arc is given by

$l=r\theta\\\\l=10\times \frac{2\pi}{3}\\\\l=10\times \frac{2}{3}\times \frac{22}{7}\\\\l=20.95\ inches$

Hence, length of an arc is 20.95 inches.

Hence, Option 'C' is correct.

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3 years ago

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The difference between 4 twenty fives and three twenty fives

-Dominant- [34]

Answer:

4 twenty fives is 100 and 3 twenty fives is 75

Step-by-step explanation:

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3 years ago

Ivan and Tanya share £150 in the ration of 4:1

Zarrin [17]

Answer:

Money Ivan gets extra = 120 - 30 (or 3x) = 90

Step-by-step explanation:

Ivan = 4x

Tanya = 1x

Total = 150

4x + x = 150

5x = 150 ; x = 150 / 5 = 30

Ivan = 4x = 120

Tanya = 1x = 30

Money Ivan gets extra = 120 - 30 (or 3x) = 90

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3 years ago

Select all ratios equivalent to 30:6

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Answer:

60 : 12

90 : 18

120 : 24

150 : 30

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