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2 years ago

Solve the combined inequality

Mathematics

2 answers:

natta225 [31]2 years ago

6 0

Answer:

6.72<x<10.08

Step-by-step explanation:

multiply 1.12 and 6 for the low end

multiply 1.12 and 9 for the high end

Inessa05 [86]2 years ago

3 0

Answer:

6.72<=X<=10.08

Step-by-step explanation:

6*1.12<=X<=9*1.12

We put 6*1.12 because that is the least she would pay, putting it into the lower end.

We put 9*1.12 because that is the most she would pay, putting it into the higher end.

6.72<=X<=10.08

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Nancy has to cut out circles of diameter 1 3/ 7 cm from an aluminium strip of dimensions 7 1/ 7 cm by 1 3/ 7 cm . How many full

Alona [7]

Answer:

Nancy can cut 6 full circles

Step-by-step explanation:

Length of aluminium strip = $7 \frac{1}{7} cm$

Length of aluminium strip = $\frac{50}{7} cm$

Breadth of aluminium strip = $1 \frac{3}{7} cm$

Breadth of aluminium strip = $\frac{10}{7} cm$

Area of strip = $Length \times Breadth = \frac{50}{7} \times \frac{10}{7} =\frac{500}{49}$

Diameter of circle = $1 \frac{3}{7} cm$

Diameter of circle = $\frac{10}{7} cm$

Radius of circle = $\frac{10}{ 7 \times 2}=\frac{10}{14} cm$

Area of circle = $\pi r^2 = \frac{22}{7} \times (\frac{10}{14})^2=\frac{550}{343} cm^2$

No. of circles can be cut = $\frac{\frac{500}{49}}{\frac{550}{343}}=6.3636$

So,Nancy can cut 6 full circles

6 0

2 years ago

Find The Measure Of D

Leviafan [203]

Answer:

138 Degrees

Step-by-step explanation:

Because it is adjacent to the 42 degrees, just subtract 42 from 180 to get 138 degrees.

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2 years ago

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A random number generator generates numbers from 1 to 10. What is the probability that the number generator generates a 3 ?

AveGali [126]

Answer:

1/10

Step-by-step explanation:

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2 years ago

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What is the area of the circle in terms of pi? 3.7 m is the diameter

Liono4ka [1.6K]

Area of a circle is :
$\pi {r}^{2}$
Where r is the radius.
To find r, you divide the diameter by 2
$\frac{3.7}{2} = 1.85$
Then,
$\pi {1.85}^{2} \\ = \frac{1369}{400} \pi \\ or \\ = 3.4225\pi$

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2 years ago

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The formula for the circumference of a circle is c= 2pi r, where r is the radius. Rearrange the formula to solve for our and sel

ratelena [41]

Answer: r = C/(2pi)

This is the same as writing $r = \frac{C}{2\pi}$

=========================================================

Explanation:

pi is some number (approximately 3.14) which means 2pi is also some number (roughly 6.28)

Saying c = 2pi*r means we have 2pi times r, and the result is the circumference c. To isolate r, we'll undo the multiplication. We'll undo it by dividing both sides by 2pi like so

C = 2pi*r

C/(2pi) = r

r = C/(2pi)

in which we can write it like $r = \frac{C}{2\pi}$

So whatever C is, we divide it over 2pi (aka roughly 6.28) to get the radius.

-----------------

Extra Info (Optional Section):

As an example, let's say the circumference of the circle is 628 feet. This means the distance around the circle is 628 feet. So C = 628 would lead to...

r = C/(2pi)

r = C/(6.28)

r = 628/(6.28)

r = 100

So the radius would be roughly 100 feet.

8 0

2 years ago