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patriot [66]
3 years ago
15

Please help ASAP! I will friend you (probably)! The first person to answer correctly gets to be the brainiest! All of the member

s of our spray-painting team paint at the same speed. If 12 team members can paint a 2400 square foot wall in 45 minutes, then how many minutes would it take for 9 team members to paint a 3600 square foot wall?
Mathematics
1 answer:
Illusion [34]3 years ago
3 0
It would take 90 minutes for 9 men to paint a 3600 square foot wall.
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Find the area of a regular hexagon with apothem 2√3 mm. Round to the nearest whole number.
Varvara68 [4.7K]
Join the center of the hexagon with the 2 base angles.

An equilateral triangle, with side length x, is formed.

(remark: a regular hexagon is made up of 6 equilateral triangles with equal length)

The height 2 \sqrt{3} forms 2 congruent right triangles with :

hypotenuse= x, side_1=x/2, and side_2= 2 \sqrt{3}.

From the pythagorean theorem we have:

x^{2} = ( \frac{x}{2} )^{2}+(2 \sqrt{3})^{2}

x^{2} =  \frac{ x^{2} }{4} +12

\frac{3}{4} x^{2} =12

x^{2} = \frac{12*4}{3}=4*4

thus, x=4.

The area of the triangle is 1/2 * 4 * 2 \sqrt{3}=6.93 (mm squared)

The area of the hexagon is 6* the area of the triangle = 42 (mm squared)


Answer: a. 42 (mm squared)
8 0
4 years ago
Suppose the rate of growth of bacteria in a petri dish is given by q(t)=12 t, where t is given in hours and q(t) is given in mil
ycow [4]

Answer:

a) Q(t) = 89 + 12t

b) Q(3) = 125  millions of bacteria

Step-by-step explanation:

a)

to write a function of the growth of bacteria, we need to consider the initial population and add it to the new bacteria. Also we need to consider that the result of the function is in millions of bacteria, so when we get a result, we express it in millions.

Data

Initial population = 89 just add it to the function given   12t

          Q(t) = 89 + 12t

b) Data     time = 3 h

      Q(3) = 89 + 12(3)    substitution

      Q(3) = 89 + 36       simplifying

      Q(3) = 125 millions of bacteria

3 0
3 years ago
*An isosceles trapezoid ABCD has bases AD = 17cm, BC = 5cm, and leg AB = 10 cm. A line is drawn through vertex B so that it bise
Snowcat [4.5K]
Asked and answered elsewhere.
brainly.com/question/9635743
5 0
4 years ago
Read 2 more answers
Which of the following is an equation of the line in the figure below?
spin [16.1K]

Answer:

c I had the same worksheet

Step-by-step explanation:

5 0
3 years ago
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Last year the 6th grade had 350 students. This year the number Increased 36%. How many students are in this year's 6th-grade cla
kupik [55]

Answer:

476 Students

Step-by-step explanation:

36% of 350 = 126 Students

350 + 126 = 476 students

7 0
3 years ago
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