1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
34kurt
3 years ago
13

-3(8/9)÷66.9[9(-8.9+9/5).01]i neeeed help or il fail the 6weeks​

Mathematics
1 answer:
kompoz [17]3 years ago
7 0

The answer of -3(8/9) ÷ 66.9[9 (-8.9 + 9/5) .01] is 0.06237948089

Step-by-step explanation:

To solve this problem -3(8/9) ÷ 66.9[9 (-8.9 + 9/5) .01] we must start with

1. Solve this bracket [9 (-8.9 + 9/5) .01] at first

2. Multiply the answer of the bracket by 66.9

3. Multiply -3(8/9) and divide the answer by the product of the previous

   step

In [9 (-8.9 + 9/5) .01]

∵ (-8.9 + 9/5) = (-8.9 + 1.8) = -7.1

∴ [9 (-8.9 + 9/5) .01] = [9 (-7.1).01]

∵ 9(-7.1)(.01) = -0.639

∴ [9 (-8.9 + 9/5) .01] = -0.639

∵ 66.9 [-0.639] = -42.7491

∵ -3(\frac{8}{9})=\frac{-8}{3}

∴ -3(8/9) ÷ 66.9[9 (-8.9 + 9/5) .01] = \frac{-8}{3} ÷ -42.7491

∴ -3(8/9) ÷ 66.9[9 (-8.9 + 9/5) .01] = 0.06237948089

The answer of -3(8/9) ÷ 66.9[9 (-8.9 + 9/5) .01] is 0.06237948089

Learn more:

You can learn more about decimals in brainly.com/question/1774450

#LearnwithBrainly

You might be interested in
For f(x)=4sin(x2) between x=0 and x=3, find the coordinates of all intercepts, critical points, and inflection points to two dec
telo118 [61]

Answer:

Intercepts:

x = 0, y = 0

x = 1.77, y = 0

x = 2.51, y = 0

Critical points:

x = 1.25, y = 4

x = 2.17 , y = -4

x = 2.8, y = 4

Inflection points:

x = 0.81, y = 2.44

x = 1.81, y = -0.54

x = 2.52, y = 0.27

Step-by-step explanation:

We can find the intercept by setting f(x) = 0

4sin(x^2) = 0

sin(x^2) = 0

x^2 = n\pi where n = 0, 1, 2,3, 4, 5,...

x = \sqrt(n\pi)

Since we are restricting x between 0 and 3 we can stop at n = 2

So the function f(x) intercepts at y = 0 and x:

x = 0

x = 1.77

x = 2.51

The critical points occur at the first derivative = 0

f^{'}(x) = 4cos(x^2)2x = 8xcos(x^2) = 0

xcos(x^2) = 0

x = 0 or

cos(x^2) = 0

x^2 = \frac{\pi}{2} + n\pi where n = 0, 1, 2, 3

x = \sqrt{\pi(n+1/2)}

Since we are restricting x between 0 and 3 we can stop at n =  2

So our critical points are at

x = 1.25, y = f(1.25) = 4sin(1.25^2) = 4

x = 2.17 , y = f(2.17) = 4sin(2.17^2) = -4

x = 2.8, y = f(2.8) = 4sin(2.8^2) = 4

For the inflection point, we can take the 2nd derivative and set it to 0

f^[''}(x) = 8(cos(x^2) - xsin(x^2)2x) = 8cos(x^2) - 16x^2sin(x^2) = 0

cos(x^2) = 2x^2sin(x^2)

tan(x^2) = \frac{1}{2x^2}

We can solve this numerically to get the inflection points are at

x = 0.81, y = f(0.81) = 4sin(0.81^2) = 2.44

x = 1.81, y = f(1.81) = 4sin(1.81^2) = -0.54

x = 2.52, y = f(2.52) = 4sin(2.52^2) = 0.27

3 0
3 years ago
Help me out with this question (geometry)
Usimov [2.4K]

Answer:

Step-by-step explanation:

∠UST=2 m∠2

10x+10=2(6x-1)

10x+10=12x-2

12x-10x=10+2

2x=12

x=6

m∠UST=10×6+10=70°

4 0
2 years ago
Between t=10 and t=60 the acceleration is 0.4 calculate the speed when t=60​
Lisa [10]

Answer:

i dont understand

Step-by-step explanation:

7 0
3 years ago
7.
Anuta_ua [19.1K]

Answer:

A. y ≥ 2x – 2

Step-by-step explanation:

4 0
3 years ago
An experienced carpenter could build a house in 5 days. How much would he have finished if he worked for 3 days?
kodGreya [7K]
I think it would most likely be  3/5
4 0
3 years ago
Read 2 more answers
Other questions:
  • Helpppppppppp mehhhhh plz
    8·1 answer
  • Bill must take an 8-question true/false quiz and has to guess on each problem. How many
    6·1 answer
  • A triangle has an area of 75 square centimeters. if the base and height have equal length, what is the link? Round to the neares
    6·1 answer
  • Can anyone plz solve this for me?
    9·1 answer
  • Find an equation of the line described below. Write the equation in slope-intercept form (solved for y), if possible. Slope: und
    5·1 answer
  • Henry steps onto an elevator at the first floor. He goes up to the 9th floor and then comes down 2 floors. He then goes up 4 flo
    14·2 answers
  • Is negative 12 a rational number
    9·1 answer
  • Who can help me please
    10·1 answer
  • Solve...............
    13·1 answer
  • The sales tax in your city is 8.8%, and an item costs $63.50. How much tax would you pay on that item?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!