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julia-pushkina [17]
3 years ago
13

A patio floor is shaped like a rectangle with a

Mathematics
1 answer:
Anna007 [38]3 years ago
7 0
The area of a rectangle is length x width.

Note that
1 in = 2.54 cm
1 cm = 1/2.54 = 0.3937 in 
1 cm = 0.3937/12 = 0.032808 ft
w cm = w*0.032808 = 0.032808w ft

Therefore the area of the floor is
(21 ft)*(21 cm)
= (21 ft x 0.032808w ft)
= 0.689w ft²

Answer:  0.689w ft²  (nearest hundredth)
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7. In 2015 a club has 250 members who each
Evgen [1.6K]

2015:

250 members

$95 annual subscription

2016

250 members + 4%

$95 annual subscription + 6%

Work:

250 x 1.04 = 260

95 x 1.06 =  100.7

260 x 100.7 = 26,182

Thus, the club makes $26,182 from 260 members who pay a subscription of $100.7

3 0
3 years ago
What's the following rotational symmetries of oranges regular hexagon​
Semmy [17]

Answer:

rotational symmetry of 60 degrees around the origin - yes

rotational symmetry of 120 degrees around the origin - yes

Step-by-step explanation:

A regular hexagon has 6 congruent angles

the the angles created on the line of symmetry are equal to 60 so the angle of rotational symmetry is 60 degrees.

The regular hexagon, like stated before, has 6 congruent angles so the order of symmetry is 6

Here is a visual from basic-matematics

6 0
2 years ago
Solve the inequality<br> 4b−4≤−20
devlian [24]

Answer:

b ≤ -4

Step-by-step explanation:

4b−4≤−20

4b - 4 + 4 ≤ - 20 + 4

4b ≤ -16

Divide both sides by 4

b ≤ -4

8 0
2 years ago
Andy and Samantha are performing an experiment in a science lab. The number of bacteria cells recorded by Andy in his experiment
-Dominant- [34]
Andy will record 6x + 5 bacteria cells, while Samantha will record 2^x + 3 bacteria cells. These will be equal at a time when:
6x + 5 = 2^x + 3
Plotting both of these shows that they are equal when x = 5 and y = 35.
Therefore, the number of bacteria cells will be equal at 35, at t = 5 hours.

7 0
3 years ago
Read 2 more answers
Brainiest for the smart cookie that solves this. It's hard, good luck!
marysya [2.9K]

Answer:

672

Step-by-step explanation:

If there must be at least 4 people in each group, then the number of people in the group for tennis must be 4, 5, or 6.

There are

(10/k)=(10!)/(k!(10−k)!)

ways of choosing k people from a group of 10, and so there are

(10/4)+(10/5)+(10/6)=(10!)/(4!6!)+(10!)/(5!5!)+(10!)/(6!4!)

=2×(10×9×8×7)/(4×3×2×1)+(10×9×8×7×6)/(5×4×3×2×1)

=2×(10×3×1×7)/(1×1×1×1)+(1×3×2×7×6)/(1×1×1×1×1) =420+252=672

5 0
3 years ago
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