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
bagirrra123 [75]
2 years ago
5

2. Tell whether the ordered pair (-1,-2) is the solution of the system. x + y =

Mathematics
1 answer:
liubo4ka [24]2 years ago
6 0

Answer:

Not the solution tp the system because the ordered pair should be true for both equations. However the last equation is not true.

Step-by-step explanation:

(-1,-2) is the solution of the system. x + y =-3 and 2x - y = -4*

<em />

<em>x + y =-3 :</em>

(-1)+ (-2) = -3

-1-2 =-2   -3=-3

<em />

<em>2x - y = -4:</em>

2(-1)-(-2)=-4

(-2) -(-2)= -4

0=-4

You might be interested in
At the park there is a pool shaped like a circle. A ring-shaped path goes around the pool. Its inner diameter is 22yd and its ou
jeka94
First, we need to think about what we're actually solving for: the area of the path. To find this, we can find the area of the whole thing, minus the area of the pool.

The diagram would look something like the picture I attached. We know that to find the area of a circle, you do πr^2. The radius is half of the diameter, so halve the diameters:

22/2 = 11 yards
32/2 = 16 yards

Then solve for the area of both circles.
π11^{2}= 121π ≈ <span>380.13 (area of the pool)</span>
π16^{2}= 256π ≈ <span>804.25 (area of the whole thing)
</span>
Next, subtract the area of the pool from the area of the whole thing to find the area of the walkway:
804.25 - 380.13 = 424.12 (area of the walkway)

Finally, divide the area of the walkway by 6 to see how many gallons of paint you'll need:

424.12 ÷ 6 ≈ 70.69

So you'll need 71 gallons of paint!

Hope I helped and let me know if you have any questions :)


6 0
3 years ago
Need help 10 points
Citrus2011 [14]

Answer:

50.24

Step-by-step explanation:

8 is the radius of the circle, so using A=πr^2, the equation would be A=(3.14*8^2)/4

(Dividing by 4 because we are solving for 1/4 of a circle, and substituting pi for 3.14)

(3.14*8^2)=200.96

200.96/4=50.24

3 0
2 years ago
What is the surface area of this figure below?
ivann1987 [24]

Answer:

answer: 189

Step-by-step explanation:

Formula to find triangles area is base x height ÷ 2 So... 7 x 10 = 70 70 ÷ 2 = 35 Now sense we have 4 identicle triangles we will just do 35 × 4 amd 35 × 4 = 140 now for the square its simply just base x height so 7 × 7 = 49 now we will add these up...140 + 49 = 189 so 189 is the area. Hope this helps!

7 0
2 years ago
The circumference of jj's basketball is 29.6 inches. Will it go through the basket that is 10 inches in diameter?
Olenka [21]

Step-by-step explanation:

circumference of jj's basketball = 29.6 inches

Circumference of basket = 3.14 * 10 = 31.4 inches

Because

circumference of jj's basketball < Circumference of basket

Therefore ball will go through the basket.

7 0
3 years ago
Read 2 more answers
Plz help me with this problem it’s not that hard at all !!
Brums [2.3K]

Answer:

43x-19y+74

hope this helps!!:)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Shawn and Ellie are construction workers. Shawn can complete a concrete job in 4 hours, while Ellie can complete it in 6 hours.
    15·1 answer
  • 12. Solve and circle ALL answers that apply. 1x1 - 1 - 10
    7·1 answer
  • the scale in a drawing is 2 in.:8 ft. On the drawing, a rolm is 3 inches long. What is the length in feet of the actual room?
    10·2 answers
  • What is the volume of the prism below?
    11·1 answer
  • Please help im very confused
    8·1 answer
  • A catering company uses different functions to estimate the itemized costs for a party. The table below represents the included
    10·1 answer
  • The slope that goes through the points (3,-4) and (-2,6)​
    11·1 answer
  • How do you calculate this?
    14·1 answer
  • A random variable x is uniformly distributed between 45 and 150:
    8·1 answer
  • 1. The spinner shown has six equal-size sections and is spun twice. What is the probability that the product of the number spun
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!