MATHEMATICS HIGH SCHOOL

Find the missing coordinate to complete the ordered-pair solution to the given linear equation:

A) y+6x=5 

(a) (-1,?)

      (b) (3,?) 

B) 3x+2y=-6 
      (a) (-2,?)

      (b) (?,3) 

C) 2x+1/3y=5 
      (a) (?,18)

      (b) (8/3,?)

Answers

Answer 1
Answer: A
a) y+6x=5 if x= -1  then y+6(-1)=5 then y = 11
b) same thing if x = 3 then y+6(3)=5 y+18=5  subtract both sides by -18 and leave y on left then add 5+(-18)= 13 then y=13

B same as above
question (a) asks you to solve for y because x is -2
(b) asks you to solve for x because y is known
3x+2y=-6 if y = 3 you write 3x+2(3)=-6 3x+6=-6 move the +6 over to right side by subtracting 6 from both side 3x=-6 + -6 so 3x=-12 to get rid of the 3 and only leave the x you want to divide both side by 3 then x= -12/3 then the answer would be x=-4
Answer 2
Answer:

Answer:

i think the answer is A

Step-by-step explanation:

Related Questions

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51/8 times 17/4and simplified
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Help me solve this problem for algebra 2
Marge cuts 16 pieces of tape. each piece is 3/8 inches long. how much tape did she use

Can someone help please? asap.

Answers

1. The answer is C.
2. It is the marginal relative frequency (The answer is D).
3. The answer is D.
4. The answer is D.
5. The answer is C.

What is the positive solution of x2 – 36 = 5x?

Answers

The equation x^2 - 36 = 5x is a quadratic equation and can be solved thus: x^2 - 36 = 5x x^2 - 5x - 36 = 0 x^2 + 4x - 9x - 36 = 0 x(x + 4) - 9(x + 4) = 0 (x - 9)(x + 4) = 0 x - 9 = 0 or x + 4 = 0 x = 9 or x = -4 Therefore, the positive solution of x^2 - 36 = 5x? is 9.

short answer is 9 for anyone who wants it.

Yes the full answer is -4, 9 but the question asks for the POSITIVE SOLUTION so the answer is just 9

hey sales person sells $2900 and merchandise and earns a commission of 522 what is the commission rate?

Answers

Answer: 18%

Step-by-step explanation: To find the commission rate, we can divide the commission earned by the total merchandise sold.

Given:

Total merchandise sold = $2900

Commission earned = $522

To calculate the commission rate:

Commission rate = (Commission earned / Total merchandise sold) * 100%

Substituting the given values into the formula:

Commission rate = (522 / 2900) * 100%

Calculating the commission rate:

Commission rate = 0.18 * 100% = 18%

Therefore, the commission rate for this salesperson is 18%.

Write the expression as the sine, cosine, or tangent of an angle. sin 57° cos 13° - cos 57° sin 13°
Select one:
a. cos 70°
b. cos 44°
c. sin 44°
d. sin 70°

Answers

Answer:  The correct option is (c) sin 44°.

Step-by-step explanation:  We are given to write the following expression as the sine, cosine or tangent of an angle :

T=\sin 57^\circ\cos13^\circ-\cos57^\circ\sin13^\circ.

We will be using the following trigonometric formula :

\sin (A+B)=\sin A\cos B-\cos A\sin B.

Therefore, we get

T\n\n=\sin 57^\circ\cos13^\circ-\cos57^\circ\sin13^\circ\n\n=\sin(57^\circ-13^\circ)\n\n=\sin 44^\circ.

Thus, the required expression can be written in sine of an angle of measure 44°.

Option (c) is CORRECT.
Use this formula: sin (x-y) = sinx cosy - cosx siny

sin57 cos13 - cos57 sin13 = sin (57 -13) = sin (44)

A full moon occurs every 30 days if the last full moon occurred on Friday how many days will pass before full moon occurs again on a Friday

Answers

Not sure but I think it will need 210 days

What is the domain of the relation {(2, 8), (0, 8), (–1, 5), (–1, 3), (–2, 3)}?

Answers

The domain is simply all of the x values.

We have a 2, 0, -1, -1, and -2.

Get rid of duplicates, so 2, 0, -1, and -2.

We're going to want to order those, so -2, -1, 0, and 2.

And put some fancy brackets on that. {-2, -1, 0, 2}
Domain          Range
    -1                    3
     0                    5
     2                    8
     3

The domain of the relation {(2, 8), (0, 8), (-1, 5), (-1, 3), (-2, 3)} is {-1, 0, 2, 3}.
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