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True [87]
3 years ago
6

Find the exact circumference of a circle with the given radius. 3½ cm C = 7.5π cm 7π cm 6.25π cm

Mathematics
2 answers:
Nimfa-mama [501]3 years ago
4 0
C = 2 * (pi) * r
C = 2 * (pi) * 3.5.....3 1/2 = 3.5
C = (2 * 3.5) * (pi)
C = 7(pi) cm <===
Anna [14]3 years ago
4 0

Answer:

(B) 7{\pi}cm

Step-by-step explanation:

We are given the radius of the circle that is equal to 3\frac{1}{2}cm.

Now, circumference of circle is given as:

C=2{\pi}r

C=2{\pi}(3\frac{1}{2})

C=2{\pi}(\frac{7}{2})

C=7{\pi}cm

Therefore, the circumference of the circle is 7{\pi}cm.

Hence, option B is correct.

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P(A)=.50 P(B)=.40, and P(A and B) = .15 what is P(a and B)
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0.75

Step-by-step explanation:

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3 years ago
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Directions: for questions 1 through 4, find the diagonal length of each solid figure.
Alex787 [66]
\text{The length of the diagonal is }11.2\text{ mm}

Here, we want to find the diagonal of the given solid

To do this, we need the appropriate triangle

Firstly, we need the diagonal of the base

To get this, we use Pythagoras' theorem for the base

The other measures are 6 mm and 8 mm

According ro Pythagoras' ; the square of the hypotenuse equals the sum of the squares of the two other sides

Let us have the diagonal as l

Mathematically;

\begin{gathered} l^2=6^2+8^2 \\ l^2\text{ = 36 + 64} \\ l^2\text{ =100} \\ l\text{ = }\sqrt[]{100} \\ l\text{ = 10 mm} \end{gathered}

Now, to get the diagonal, we use the triangle with height 5 mm and the base being the hypotenuse we calculated above

Thus, we calculate this using the Pytthagoras' theorem as follows;

\begin{gathered} d^2=5^2+10^2 \\ d^2\text{ = 25 + 100} \\ d^2\text{ = 125} \\ d\text{ = }\sqrt[]{125} \\ d\text{ = }11.2\text{ mm} \end{gathered}

7 0
11 months ago
Which alphabet is missing V S P W T P_​
slavikrds [6]

Answer:

E

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP I WILL GIVE 100 POINTS!!!!!!!!Given rectangle ABCD ~ HGFE , what is the length of HG ?
never [62]
Since rectangle ABCD is similar to  HGFE, the ratios of the lengths of their corresponding sides are equal. We can infer form our picture that AD is corresponding to EH and DC is corresponding to HG, so lets find the ratios of those corresponding sides and establish a proportion to find the length of HG:
\frac{AD}{EH} = \frac{DC}{HG}
We know that AD=45, EH=27, and DC=15, so lets replace those values in our proportion:
\frac{45}{27} = \frac{15}{HG}
HG= \frac{27*15}{45}
HG= \frac{405}{45}
HG=9

We can conclude that the length of the segment HG is 9.

8 0
3 years ago
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Image attached pls help 40 points
lutik1710 [3]

Answer:

Jake:y

grandma:6y

cousin:y+5

the sum of all their ages:8y+5

Step-by-step explanation:

given Jake:y

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so

grandma:6y

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so

cousin:y+5

the sum of all their ages is

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8y+5

6 0
3 years ago
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