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lisov135 [29]
3 years ago
13

Tiara kept track of the number of good tennis serves that she made in a row.

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
5 0
First we put them in order....

9,11,12,15,16,17,17,19
Q1 (lower quartile) = (11 + 12) / 2 = 23/2 = 11.5
Q2 (median) = (15 + 16) / 2 = 31/2 = 15.5
Q3 (upper quartile) = (17 + 17)/2 = 34/2 = 17

so the upper quartile (Q3) = 17 <==
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A carnival tent is set up using a 32-foot pole as the center. The Support wires each have an angle of elevation of 38 degrees fr
BARSIC [14]

Answer:

about 52 feet

Step-by-step explanation:

The figure is omitted--you may draw it to confirm my answer.

sin (38°) = 32/x

x sin (38°) = 32

x = 32 / sin (38°) = about 52 feet

5 0
1 year ago
A group of church members chartered a bus for $832. After making the arrangements, 6 more members decided to join the excursion
g100num [7]
Let x = # of original members
Cost per person (originally) = 832/x
Cost per person after 6 more people = 832/(x+6)
Solve 832/x=832/(x+6) +6  (because the cost was reduced by 6 
Solve for x.
x = 26 or -32 (but x is number of members, so it can't be negative)
# of original members is 26.
Original cost is 832/26 = $32 per person.
3 0
3 years ago
A pack of 6 batteries of the same type costs £2.79. By caculating the price, per battery, determine if this is better value. You
Fittoniya [83]

Answer:

£0.465. It is a better value.

Step-by-step explanation:

If a pack of 6 batteries costs £2.79, price of a battery can be calculated as shown;

6batteries = £2.79

1 battery = x

x = cost of a battery

6x = £2.79

x = £2.79/6

x = £0.465

Price per battery will be £0.465. This price is a better value since the price is lesser than the cost of the 6batteries (£2.79) in a pack.

6 0
3 years ago
What is the value of the expression 2x²- 3x + 7 when x = 3? *
kupik [55]
16

.......................
3 0
3 years ago
Read 2 more answers
I will give brainliest
Natasha_Volkova [10]

Answer:

  • 225°
  • quadrant 3
  • reference angle of 45°

Step-by-step explanation:

585-360= 225

225° is in quad 3

reference angle for quad 3 is

225° - 180°

3 0
3 years ago
Read 2 more answers
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