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Lerok [7]
3 years ago
13

Please help with my math due soon

Mathematics
1 answer:
MaRussiya [10]3 years ago
4 0

Answer:

x=2 y=6

Step-by-step explanation:

Using the substitution method 3x=9x-12 then combine like -6x=-12 then divide by -6 and x=2 then plug x=2 into any equation for example the bottom one. y=3(2) which y equal 6

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The graph below represents which systems of inequalities?​
SashulF [63]

Answer:

Step-by-step explanation:

y > - x + 3

y ≤ 2x - 2

3 0
3 years ago
HELP ASAP 5 STARS, THANKS, 20 POINTS, BRAINLIEST,
Bingel [31]

Answer:

b.7

Step-by-step explanation:

you take the three and substitute that in for x.  2(3) + 1

2(3)=6 then add 1

5 0
3 years ago
Read 2 more answers
to angie's ladder was 22 feet tall above the ground lying against the wall of her house.the base of the ladder was 5 feet tall.w
Talja [164]

Answer:


Step-by-step explanation:

Okay, so attached is a diagram of the triangle we are solving. Because buildings are almost always perpendicular (90 degrees) to the ground, it is a right triangle.

You can now use the pythagorean theorem with the sides to fill in the other side:


a^2+ b^2= c^2

5^2 + b^2= 22^2

25+b^2=484

b^2= 459

b=21.42


Okay, so for slope you need 2 points- think of the wall as your y axis, and the ground as your x axis. The ladder is the line.

Your first point is (-5,0) because the bottom of the ladder is touching the ground (no y movement) and the bottom of the ladder is 5 feet from the base of the wall and ground (origin).

The second point is going to be (0, 21.42) because that is the height of the wall where the ladder is touching (x is at origin). The 21.42 is positive, because you can't have negative height.

Okay so far? :)

(-5,0) and (0, 21.42)

(x1, y1) and (x2, y2)

slope= (y2-y1)/(x2-x1)

slope= (21.42-0)/ (0-(-5)) ---- becomes positive

slope= 4.284

(Note: slope could also be negative if you put the ladder on the other side of the wall- 5 would become positive... google "positive vs negative slopes" for more info)


Hopefully that answers your question!

3 0
3 years ago
2 1/2 cases of soda to split between 5 families
Charra [1.4K]

Answer:

OK SO A Which polynomial is prime?

7x2 – 35x + 2x – 10

9x3 + 11x2 + 3x – 33  

10x3 – 15x2 + 8x – 12  

12x4 + 42x2 + 4x2 + 14

Step-by-step explanation:

Which polynomial is prime?

7x2 – 35x + 2x – 10

9x3 + 11x2 + 3x – 33  

10x3 – 15x2 + 8x – 12  

12x4 + 42x2 + 4x2 + 14

5 0
3 years ago
Help im confusted about remainder therom
Schach [20]

Answer:

(x + 2) is a factor of f(x)

Step-by-step explanation:

Using the remainder theorem to divide f(x) by (x - h)

Evaluate f(h) and if equal to 0 then (x - h) is a factor

f(- 3) = (- 3)³ - 7(- 3)² + 36 = - 27 - 63 + 36 ≠ 0

f(- 2) = (- 2)³ - 7(- 2)² + 36 = - 8 - 28 + 36 = 0

f(- 6) = (- 6)³ - 7(- 6)² + 36 = - 216 - 252 + 36 ≠ 0

f(2) = 2³ - 7(2)² + 36 = 8 - 28 + 36 = 16 ≠ 0

Hence (x + 2) is a factor of f(x)

3 0
3 years ago
Read 2 more answers
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