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4 years ago

If John drove 210 miles in 3 hours, how far will he have driven in 4.5 hours?

Mathematics

1 answer:

VashaNatasha [74]4 years ago

3 0

Answer:

3hours and 15 mins

Step-by-step explanation:

210 divied by 3=70

70=per hour

4 hours=280

70 divied by 2= 35

.5=35

280+35=315

315 miles in 4.5 hours

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Need help solving problems 29-32 please explain so I can understand concepts thank you!!

Fittoniya [83]

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3 years ago

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IM IN A HURRY PLEASE HELP ME QUESTION IS DOWN BELOW WORTH 15 POINTS each

mr_godi [17]

A circle is a shape formed by a curved side. Therefore, the required answers are:

1. An example of an inscribed angle is: <SQT or <QST or <QTS

2. An example of a minor arc is: arc QT or RS or QR

3. An example of a semicircle is: QRS or QTS

4. <QPR = $\frac{264600}{44r}$ degrees

An angle is said to be formed whenever two or more straight lines intersect or meet. But an inscribed angle is an angle formed within a given circle.

A circle is a shape formed by a curved side. Some of its parts are semicircle, radius, diameter, chord, sector, segment, etc.

Thus the following can be deduced from the given question:

1. An example of an inscribed angle is: <SQT or <QST or <QTS

2. An example of a minor arc is: arc QT or RS or QR

3. An example of a semicircle is: QRS or QTS

4. <QPR.

length of an arc = $\frac{x}{360}$ 2 $\pi$ r

where r is the radius of the circle

105 = $\frac{x}{360}$ x 2 x $\frac{22}{7}$ x r

= $\frac{44xr}{2520}$

44 xr = 105 x 2520

44xr = 264600

x = $\frac{264600}{44r}$

Therefore the measure of angle QPR in terms of r is $\frac{264600}{44r}$ degrees.

5. The length of arc QTR can be determined by;

Arc QTR = $\frac{x}{360}$ 2 $\pi$ r

For more clarifications on parts of a circle and the length of an arc, visit: brainly.com/question/27128255

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2 years ago

What irrational number is between 4.47 and 4.48?

shepuryov [24]

Answer: √20 is between 4.47 and 4.48

Step-by-step explanation: Square roots of numbers between perfect squares are irrational numbers. 16 and 25 are squares of 4 and 5, so the irrational number we are looking for must be about halfway between 16 and 25.

$\sqrt{20} =4.472135955$ is more than 4.47 and less than 4.48