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3 years ago

15

Find the mean for the given set of data 18,15,22,18,25,19,23

1 answer:

Bezzdna [24]3 years ago

4 0

Answer:

The mean for this data set is 20

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Find what the question asks. 200 points. Will mark brainleist

kotegsom [21]

Note:
The area of a circle with radius r is πr².
An entire circle has a central angle of 360°.

For the sector with radius = (3+4) = 7cm and a central angle of 120°, the area is
$A_{1}= \frac{120}{360}*(49 \pi ) = \frac{49}{3} \pi \, cm^{2}$

For the sector with radius = 3 cm and a central angle of 120°. the area is
$A_{2}= \frac{120}{360} *(9 \pi ) = 3 \pi \, cm^{2}$

The area of the shaded sector (see the figure) is
$A=A_{1}-A_{2} = ( \frac{49}{3} -3) \pi = \frac{40}{3} \pi \, cm^{2}$

Answer: $\frac{40}{3} \pi \, cm^{2}$

6 0

3 years ago

Read 2 more answers

Is -451 in the sequence below?<br> 15,7,-1,-9,,-17..

Andrews [41]

Answer:

No, the closest to -451 in the sequence is -429

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

The best estimate of 45 percent of 76

Vedmedyk [2.9K]

45% of 76
45%=0.45
0.45*76
34.2
34.2 is about 34
so 34

6 0

2 years ago

Read 2 more answers

Devin's DVD case has 3 rows of slots, but 5 slots are broken.If x equals the number of slots in a row explain how the expression

Paul [167]

Answer:

The total number of unbroken / working slots

Step-by-step explanation:

Given that Devin's DVD case has 3 rows of slots, but 5 slots are broken

Also given that the number of slots in a row is x

1 row has x slots

3 rows has y slots

on cross multiplication we get y = 3x

ie there are a total of 3x slots in the 3 rows

Given that out of these 3x slots 5 . of the slots are broken

Therefore the total number of working slots = total number of slots - number of slots which are broken

total number of working slots are = 3x - 5

Therefore the given expression is the number of working / good slots

6 0

2 years ago

$750 are deposited into an account quarterly for eight yeara at an interest rate of 7.9% compounded quarterly how much is in the

IgorC [24]

750*7.9%*8=474 is the account at the end of 8 years. Good luck

4 0

3 years ago