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
sweet [91]
3 years ago
5

Can someone help me please

Mathematics
1 answer:
madam [21]3 years ago
4 0

Answer:

r=-3,

Step-by-step explanation:

You might be interested in
This figure is made up of a rectangle and parallelogram.
ivann1987 [24]

The area of the figure is 40 units. (rounded off from 39.998 units)

Step-by-step explanation:

1. Area of the figure = Area of Rectangle + Area of Parallelogram.

2. Naming points:

Let the rectangle consist of points A(-6,-1), B(-5,-5), C(3,-3) and D(2,1).

Let the parallelogram consist of points C(3,-3), D(2,1), E(2,7) and F(3,3).

3. Each coordinate has a point on the x-axis and a point on the y-axis. We shall refer to these points as x', x'' ,x''' and so on corresponding to the x-axis values of A, B, C and so on in that order till F. For the y-axis points, we will name them in the series of y', y'', y''' and so on.

In simple words, in A(-6,1), x' = -6; y' = -1

4. Formula for finding area:

Area of a rectangle = length (l) × width (w)

Area of a parallelogram = base (b) x height (h)

5. Finding area of the rectangle:

l = AD = \sqrt{[x'''' - x']^{2} - [y'''' - y']^{2}}

, i.e. AD = \sqrt{[2 - (-6)]^{2} - [1 - (-1)]^{2}}

, i.e. AD = √68 = 8.246 (rounded to 3 decimals) = l

Now, w = AB = \sqrt{[x'' - x']^{2} - [y'' - y']^{2}}

, i.e. AB = \sqrt{[(-5) - (-6)]^{2} - [(-5) - (-1)]^{2}}

, i.e. AB = √17 = 4.123 (rounded to 3 decimals) = w

Area of rectangle = l x w = 8.246 x 4.123 = 33.998 units.

6. Finding area of the parallelogram:

b = DE = 6 units (we can observe this from the graph, i.e. points from 1 to 7 on the y axis)

h = Height is the line drawn perpendicular to the base from point F, which as we can see is 1 unit long.

Hence, Area of parallelogram = b x h = 6 x 1 = 6 units.

7. Now, adding both, we can arrive at the final answer.

Area of the figure = Area of rectangle + Area of parallelogram,

i.e. 33.998 units + 6 units = 39.998 units. (can be rounded off to 40 units)

4 0
3 years ago
Given that a triangle has sides of length 4.1 cm and 7 cm. What is the range of possible length of the third side?
Citrus2011 [14]

Answer:

82.8

Step-by-step explanation:

5 0
3 years ago
What the meaning of the acronym lcm​
Korvikt [17]

Answer:

Least Common Multiple

5 0
3 years ago
Find the missing dimension.Use the Scale factor 1:12
strojnjashka [21]

Answer:

64.8 ft

12 times 5.4 is 64.8

3 0
3 years ago
Read 2 more answers
What would be the first step to solve for n in the equation 3n-7=30?
taurus [48]
The first step would be to add 7 to both sides.
3n-7=30
add 7
3n=37
divide by 3
n=12.33
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is 1/12 (12-v)=1/6(v-6)
    11·1 answer
  • Explain how knowing 1+7 help you find th sun
    10·1 answer
  • Steve is analyzing two linear functions, f(x) and g(x). Will they intersect?
    11·1 answer
  • All vertical lines are perpendicular to what type of line
    6·2 answers
  • PLEASE HURRY I WILL MARK AS BRAINLIEST!!!!!
    10·2 answers
  • Determine if the sequence is geometric. If it is, find the term named in the problem.
    9·1 answer
  • What is the answer please help
    12·1 answer
  • Penelope is saving up to buy a new bicycle. She already has $65 and can save an
    8·1 answer
  • Suppose Ray BD bisects ZABC. If m ZABD=30 degrees what is mZDBC
    13·1 answer
  • Balance on a 20,000 deposit earning 3.5% compounded quarterly after 10 years
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!