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PilotLPTM [1.2K]
3 years ago
8

Find the area of a circle with a diameter of 4 . Either enter an exact answer in terms of use 3.14 3enter your answer as a decim

al.
Mathematics
1 answer:
Sphinxa [80]3 years ago
5 0

Answer:

 4pi

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

where r is the radius

The radius of a circle is found by

r =d/2 where d is the diameter

r = 4/2 = 2

So A = pi (2)^2

        pi (4)

        4pi

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Joe began to increase the speed of his car at 2:00 P.M. Since that time,the speed of Joes car has been steadily increasing by 1
Olegator [25]

Answer:

7 mins

Step-by-step explanation:

Current speed of Joes Car = 65.5 mph

We have to find the time interval for which the car exceeded the speed limit of 55 mph.

While, we are given that the speed of the car was constantly increasing, hence the speed over all increased from the limit of 55 mph = 65.50-55.00 = 10.50 mph

We are also given that Joes car was increasing speed at a constant rate of 1.50 mph for every passing minute. Hence

1.50 mph is increased in 1 minute

1 mph will be increase in \frac{1}{1.5} minutes

Hence

10.50 mph will be increased in \frac{1}{1.5} \times 10.50 minutes

= \frac{10.5}{1.5}

=7

Hence joes car was exceeding the limit of 55 mph for 7 minutes.

8 0
3 years ago
Which are whole numbers ? 0,4,-2,2/3,-1.8,16,3.2,-5/4
Rasek [7]

Answer:

0,4,16

Step-by-step explanation:

i hope that helps

7 0
3 years ago
Read 2 more answers
Inga divided two identical rectangles into equal parts. She colored one part of each rectangle.
likoan [24]

Answer:

The areas are equal.

Step-by-step explanation:

Let the first rectangle be R and

the second rectangle be R'.

Sine R and R' are identical, their lengths are equal and their breadths are equal.

So, if Inga divided each into equal parts, then each part of both rectangles are equal.

Hence, the colored parts of both rectangles are equal.

8 0
3 years ago
Given e (-2,3) f(-2,-2) g(3,-2) h(3,3) prove efgh is a rhombus
lyudmila [28]

the answer to this question (-2,3)


8 0
3 years ago
What is the common ratio between successive terms in the sequence? 2, –4, 8, –16, 32, –64, ... –2 –6 6 2
Nataly_w [17]

Answer:

-2

Step-by-step explanation:

You multiply each term by -2 to get the next term.

To find this for this sequence, divide the term on the right by the term on the left.

8 / -4 = -2              or          -4 * -2 = 8

-16 / 8 = -2             or         8 * -2 = -16

32 / -16 = -2           or         -16 * -2 = 32

-64 / 32 = -2           or         32 * -2 = -64

4 0
3 years ago
Read 2 more answers
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