(x+3)y=14 which ordered pair is a solution to this equation ? A. 7,2 B 11,1 C 3,2 or D 5,2

Answers

Answer 1

Answer: The answer would be B.
Steps:
1. Take your X coordinate and plug it into your equation where the X is.
2. Take your Y coordinate and plug it into your equation where the Y is.
3. Distribute your Y to your numbers in the parenthesis.
4. Finally add the two numbers together.
5. See if you got the same answer on both sides of the equal sign.
Hope this helps! (:

Answer 2

Answer: (x + 3)y = 14

We just test each option.

A. x = 11, y = 1

(x + 3)y = 14

(7 + 3)*2

10*2

20 = 14 This is not correct, so the option is wrong.

B. x = 11, y = 1

(x + 3)y = 14

(11 + 3)*1

14*1

14 = 14 This is correct, so the option is the correct.

So option B is the correct one. No need to test the other options.

I hope this helps.

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The binomial expansion 1.728x^3+ 3,456x² + 2,304x + 512 can be expressed as (ax + b)^3. What is the value of b?A: -12
B: -8
C: 8
D: 12

Answers

Answer:

C: 8

Step-by-step explanation:

8^3=512

if it was -8^3 it would equal -512

I believe the answer i c

Hurry The distance traveled by a sound wave through a substance is proportional to time. The graph shows this relationship for several substances. Which substances have a unit rate greater than 2 km/s?

Choose all answers that are correct.

A.
cork

B.
glass

C.
lead

D.
titanium

Answers

Glass and Titanium. Glass is because (10,40) (y over x) is 4 and Titanium is because (10,60) is 6 cork and lead are not since when dividing y over x it doesn't equal 2.

What is the prime factorization of 58

Answers

The prime factorisation for 58 is 2 x 29

:)

divide by 2, you get 2 *29, the factorization is 2 *29

What is the slope of the line through (-1, 4) and (1, -2)

Answers

Answer:

Slope = -3

Step-by-step explanation:

The slope is the change in y over the change in x

The slope formula is m=y₂-y₁/x₂-x₁ (y over x)

So, plug in your coordinates (the subscript represents the order in which your points are going to be subtracted in)

So, you would get m=-2-4/1-(-1)

Simplify (first subtract the top, then subtract the bottom)

This would get you to -6/2 (remember your rules: a negative and a negative makes a positive)

-6/2 would get you to -3

-3 is the answer

The correct answer is A

Cone A has a height of 3 meters and a radius of 2 meters. Cone B has the same radius, but the height is 6 meters. Calculate the volume of each cone. Which conclusion is correct?A) The volume of cone A is twice the volume of cone B.
Eliminate
B) The volume of cone B is twice the volume of cone A.
C) The volume of cone B is 4 times the volume of cone A.
D) The volume of cone B is three times the volume of cone A.

Answers

V=(1/3)hpir^2

Avol is (1/3)3pi2^2=4pi m^3

Bvol is (1/3)6pi2^2=2pi4=8pi m^3

B is twice vol A

answer is B

Answer:

Step-by-step explanation:

Based on the graph, which statement is correct about the solution to the system of equations for lines K and J?(1, 1) is the solution to both lines K and J.
(−1, 0) is the solution to line K but not to line J.
(1, 1) is the solution to line K but not to line J.
(0, 4) is the solution to both lines K and J.

Answers

The answer is (1,1) since that is where J and K intersect.

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