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miss Akunina [59]
3 years ago
5

Bob and carol want to hire able refinishing to sand and refinish the dining room floor to match the floor in the living room. ab

le charges $2.89 per square foot to sand and refinish a hardwood floor. the dining room is rectangular and measures 17 feet 9 inches by 11 feet 9 inches. find the area of the dining room floor, rounded to the nearest square foot, and the cost of the work.

Mathematics
1 answer:
stiv31 [10]3 years ago
5 0
Area to nearest sq.feet = 209 sq.feets

Cost = $ 604.01

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the speed that a tsunami can travel is modeled by the equation mc025-1.jpg , where s is the speed in kilometers per hour and d i
Flura [38]
The answer is a.0.32 km.

The speed that a tsunami can travel is modeled by the equation is s = 356√d.

It is given:
s = 200 km/h
d = ?

Now, let's substitute s in the equation and find d:
s = 356√d
200 = 356√d
√d = 200 ÷ 356
√d = 0.562

Now, let's square both sides of the equation:
(√d)² = (0.562)²
d = (0.562)² = 0.316 ≈ 0.32

Therefore, <span> the approximate depth (d) of water for a tsunami traveling at 200 kilometers per hour is 0.32 km.</span>
5 0
2 years ago
Read 2 more answers
To get an A in a course, you must have an average of at least 90% on four tests worth 100 points each. Your scores so far are 85
kondaur [170]

Answer:

A score of 117 is needed, which Is not possible since the test is over 100.

Step-by-step explanation:

The other 3 scores are 85, 94,84 . Let's x be the 4th score he must score.

Therefore ( 85 + 94 + 84 + X)/4 =95

Then 263+X /4 =95

Cross mutiplying 4*95=263+X

Therefore X= 380-263

X= 117 which is not possible since the test score is over 100.

6 0
3 years ago
What is the position of 7 in the number 876,543?
Butoxors [25]
A. The ten-thousands place.
If you write it out its Eight hundred seventy six thousand, five hundred forty three.
<span />
5 0
2 years ago
Read 2 more answers
(a) What is wrong with the following equation? x2 + x − 42 x − 6 = x + 7 (x − 6)(x + 7) ≠ x2 + x − 42 The left-hand side is not
jeka94

Answer:

Attached please find answer

Step-by-step explanation:

= (x² + x - 42) / (x - 6)

= [x² + (7x - 6x) - 42] / (x - 6)

= [x² + 7x - 6x - 42] / (x - 6)

= [(x² + 7x) - (6x + 42)] / (x - 6)

= [x(x + 7) - 6(x + 7)] / (x - 6)

= [(x + 7)(x - 6)] / (x - 6)

= x + 7 → when x approches 6

= 6 + 7

= 13

Other method:

Lim   (x² + x - 42) / (x - 6)

x→ 6

When x → 6, there is an indeterminate expression because: 6 - 6 = 0

Do you know the l'Hôpital's rule, when x → a:

Lim [ f(x) / g(x) ] = Lim [ f'(x) / g'(x) ]

f(x) = x² + x - 42

f'(x) = 2x + 1

g(x) = x - 6

g'(x) = 1

= f'(x) / g'(x)

= (2x + 1)/1

= 2x + 1 → when x approches 6

= 12 + 1

= 13

3 0
2 years ago
What point lies on the line described by the equation below? Y+3=2 (x-1
Inessa [10]

Answer:

\boxed{(1, -3)}

Step-by-step explanation:

y+3=2 (x-1)

Put equation in slope-intercept form.

y=mx+b

y=2(x-1)-3

y=2x-2-3

y=2x-5

Let x = 1

y=2(1)-5

y=2-5

y=-3

The point (1, -3) lies on the line.

3 0
3 years ago
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