A student is trying to solve the system of two equations given below: Equation P: y + z = 4 Equation Q: 3y + 7z = 15 Which of the following steps can be used to eliminate the y term? A. –3(y + z = 4) B. 3(y + z = 4) C. –1(3y + 7z = 15) D. –3(3y + 7z = 15)

Answers

Answer 1

Answer: look at them
P: 1y
Q: 3y
multiply first equation by -3 becuase 3y-3y=0
-3P
-3(y-z=4) is answer

A is answer

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F(x) = 12x - 3x + 12Find f(10x - 5)

How do i find the slope

Answers

Answer:

Step-by-step explanation:

Pick 2 points: (-3,2) and (1,-1) I chose these points because they are whole numbers, but you can choose any 2 points

Slope: -0.75 or -3/4; Negative because the line is going down from left to right

y2-y1/x2-x1

-1-2/3-(-3)= -0.75

This is the formula which I am asking you all

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Answer:

That is literally still the same formula for mean.

Step-by-step explanation:

Whats the complete factored form of the polynomial 5b-15c???

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All you need to do is pull out a 5 :)

5(b-3c)

To factore 5b - 15 c you have to find a least common multiple which happens to b 5

Divide all factors by 5

answer : b - 3c

GeometryThe diagonals of a kite are in the ratio of 3:2. The area of the kite is 27 cm^2 . Find the length of both diagonals. (Hint: Let the lengths of the diagonals be 3x and 2x)

How do I do this?

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$A=27 \ cm^2 \n \n d_(1)=3x , \ \ d_(2) = 2x \n \n S=(1)/(2)\cdot d_(1)\cdot d_(2)\n \n27 = (1)/(2)\cdot 3x \cdot 2x \n \n 3x^2 = 27 \ \ /:3$

$x^2 = 9 \n \n3x=x=√(9)\n \nx=3 \ cm \n \n d_(1)=3x = 3*3 =9 \ cm \n \nd_(2)=2x=2*3 = 6 \ cm \n \n Answer : \n The \ length \ of \ the \ diagonal \ is: \ d_(1)= 9 \ cm \ and \ d_(2)= 6 \ cm$

Find the circumference of a circle if the area is 300 square centimeters

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61 is the answer i think

!!!!!!!PLEASE HELP!!!!!!!!!
*35 POINTS PLUS BRAINLIEST PLEASE*

Answers

Well I can’t draw anything out but the 15 foot ladder will be at a slant enough so she can reach the bulb. Yes she will be safe. Hope this helps. ;)

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Two numbers are in ratio of 2 to3 if the smaller number is 18 the larger number is what

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Two lines, A and B, are represented by the following equations:Line A: 4x + 4y = 16 Line B: x + y = 4 Which statement is true about the solution to the set of equations? It is (1, 2). There are infinitely many solutions. It is (1, 5). There is no solution.

The formula below is the general form of which of the following formulas?X= -b+-(√b^2 - 4ac) /2aA. Distance formulaB. Discriminant formulaC. Quadratic formulaD. Slope formula