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
Assoli18 [71]
3 years ago
11

Please help me idk this

Mathematics
2 answers:
dedylja [7]3 years ago
5 0

Answer:84

Step-by-step explanation:

morpeh [17]3 years ago
4 0

The area of the figure is 84

You might be interested in
if the kinetic energy of an aeroplane moving at a velocity of 100m/s is 200j ,what is the mass of the aeroplane
Black_prince [1.1K]

Answer:

<u>0.04kg</u>

Step-by-step explanation:

Kinetic energy Formula: eK=0.5×m×v²

to work out mass

we can rearrange the formula and make it:

~m=eK÷(0.5×v²)

now insert the missing digits into the formula:

m=200÷(0.5×100²)

work it out, and you get your answer

m=0.04kg

Hopefully this helped-have a good day)

8 0
2 years ago
A student takes ten exams during a semester and receives the following grades: 90, 85, 97, 76, 89, 58, 82, 102, 70, and 67. Find
slamgirl [31]
The answer is D because i found it online
4 0
3 years ago
"A rectangle has a height of 5 cm and its base is increasing at a rate" of 3/2 cm/min. When its area is 60 cm2, at what rate is
sukhopar [10]

Answer:

The diagonal is increasing at the rate of 119/104cm/min of the given rectangle.

Step-by-step explanation:

Dimensions of the rectangle

Height = 5cm

Rate of base = 3/2 cm/min

Area = 60cm^2

We know the area of a rectangle of given by = base* Height

b*h = 60

b*5 = 60

b = 12cm

Applying Pythagoras theorem while drawing a diagonal to the rectangle

  b^2 +h^2 =  D^2\\

 5^2 +12^2 = 13^2

so our diagonal will be 13cm  

Upon differentiating the area of the rectangle  we get

b*h = A=60cm^2

using  the chain rule of differentiation

h*db/dt + b*dh/dt  = 0

b*dh/dt = -h*db/dt

12*dh/dt = -5*3/2

dh/dt = -5/8 cm//min

so the height of the rectangle is decreasing at the rate of -5/8cm/min

now we have all the measurements we need

b = 12 , db/dt = 3/2cm/min

h = 5 , dh/dt = -5/8 cm/min

b^2 +h^2  = D^2

Upon differentiating we get

2b*db/dt + 2h*dh/dt = 2D*dD/dt

b*db/dt + h*dh/dt = D*dD/dt

12*3/2 + 5*(-5/8) = 13*dD/dt

18 -25/8 = 13*dD/dt

\frac{144-25}{8} = 13*dD/dt

dD/dt = \frac{119}{104} cm/min

Therefore the diagonal is increasing at the rate of 119/104cm/min of the given rectangle.

6 0
3 years ago
In order to evaluate the performance of the artificial pancreas, a researcher randomly draw 5 rats as a control group, and draw
forsale [732]

Answer: 42.190

Step-by-step explanation:

From the question, the population variances are not equal. The calculation has been attached in the picture below.

The answer is 42.190 to 3 decimal places.

4 0
3 years ago
Walter pays $2.53 to ship a package
Ivan

Answer:

what is the rest of the equation?

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • The bearing of a plane from an airport is 65 degrees
    9·2 answers
  • What is the volume of the cylinder shown<br> 14 radious and 10 height
    11·2 answers
  • What is 6 ones 7 hundredths -2.3
    7·2 answers
  • Using the data below, what is the equation for the line of best fit? Remember, put your answer in y = ax + b form and round any
    14·1 answer
  • A triangle has two sides of lengths 7 and 12. What value could the length of the third side be? Check all that apply.
    12·2 answers
  • 4/12 greater or less than 4/6
    9·2 answers
  • Ama's age is two thirds that of her elder sister. Four years ago ama's age was half the sister's. How old is the sister?
    5·2 answers
  • 2b - 19 = 11<br> Show explanation
    14·2 answers
  • Why do you think adding and subtracting polynomial expressions is like adding and subtracting
    15·1 answer
  • Can anyone solve this?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!