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
Colt1911 [192]
3 years ago
6

1)Which of these systems of linear equations has an infinite number of solutions?

Mathematics
1 answer:
Alja [10]3 years ago
7 0
1) <span>B)3x+6y=22
6x+12y=44
because the equations are equivalent to each other
 2*(3x+6y=22) -----> 6x+12y=44

2) </span><span>5x+10y=15 should be multiplied by -2, to get 5x*(-2)=-10x, and x then can be eliminated
</span><span>A)-2</span>
You might be interested in
I WILL GIVE BRAINLEIST PLS HELP
stepladder [879]

Answer:

the answer is $65

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the measure of ABD
Paladinen [302]

Answer:

Where is the question?

Step-by-step explanation:

7 0
3 years ago
Does anybody know the answer???
Rasek [7]

Answer:

Rectangle

Step-by-step explanation:

According to this grapher that I am using it shows a rectangle using your coordinates

Please give brainliest

6 0
3 years ago
Read 2 more answers
The approximate dimensions of an olympic size swimming pool are 164ft by 82ft by 6ft?what is the volume?
harkovskaia [24]

To find the volume multiply the length by the width by the depth.


Volume = 164 x 82 x 6 = 80,688 cubic feet.

7 0
3 years ago
Read 2 more answers
I need help with these 2 questions!! please 20 points!!!
bezimeni [28]

9514 1404 393

Answer:

  1. 45 cm²
  2. 38 cm²

Step-by-step explanation:

The conventional way to work these problems is to make use of the formulas for areas of a triangle, rectangle, and semicircle. If you've used these formulas for a while, you recognize that they give you certain relationships that may make these problems easy to do mentally.

__

1. The area of a triangle is half the product of height and width, so is equivalent to the area of a rectangle either half as high, or half as wide. We note that the width of the sail is 5 cm, so half that is 2.5 cm--exactly the same as the height of the boat's hull. That means we can add the height of the sail to the length of the boat, and the total area can be considered to be the same as that of a rectangle that is

  2.5 cm high × (12 cm + 6 cm) long = (2.5)(18) cm² = 45 cm²

__

2. The usual formula for the area of a circle is ...

  A = πr²

When expressed in terms of diameter, this becomes ...

  A = π(d/2)² = (π/4)d²

Then the area of a semicircle is half that, or (π/8)d². This is equivalent to the area of a rectangle that is "d" wide and "π/8·d" high. That is, the approximate area of the semicircle is that of a rectangle 4 cm high by (π/8·4 cm) = π/2 cm wide. In other words, the semicircle effectively adds π/2 cm to the left end of the 6 cm central rectangle of the figure.

As discussed above, the area of a triangle is equivalent to the area of a rectangle half as high. In this figure, the triangle is 10-6 = 4 cm wide, so can be considered to contribute 4/2 = 2 cm to the right end of the 6 cm central rectangle.

If we consider π ≈ 3, then the approximate area of the figure is ...

  (4 cm)(3/2 cm + 6 cm + 2 cm) = (4)(9.5) cm² = 38 cm²

__

The exact value is 4(8+π/2) = 32+2π ≈ 38.283 cm².

7 0
2 years ago
Other questions:
  • A polynomial has two terms.
    9·1 answer
  • The number of cats increased from 1650650 to 2250015. What is the percentage change to the nearest tenth?
    6·1 answer
  • How do you evaluate a polynomial function?
    7·1 answer
  • R+r+2r-r+4r combine like terms and solve
    8·1 answer
  • Help me i’m in need
    13·2 answers
  • Four research teams each used a different method to collect data on how fast a new iron skillet rusts. Assume that they all agre
    9·2 answers
  • PLEASE HELP!! 20 points! Determine the operation that results in the simplified expression below.
    8·1 answer
  • For what value of q is in the question -13(q+4)=7q+16​
    13·1 answer
  • In the answer to the question
    9·2 answers
  • Hi, can someone help me with this question?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!