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3 years ago

5

What is the difference between the greatest green bean weight and the least green bean weight.

1 answer:

igor_vitrenko [27]3 years ago

8 0

The Bigger weight minus the lower weight

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Use cramers rule to solve 4x+3y=4 -3x-y=7 show your work

Nataly_w [17]

$\left\{\begin{array}{ccc}4x+3y=4\\-3x-y=7\end{array}\right\\\\D= \left|\begin{array}{ccc}4&3\\-3&-1\end{array}\right|=(4)(-1)-(-3)(3)=-4+9=5\\\\D_x=\left|\begin{array}{ccc}4&3\\7&-1\end{array}\right|=(4)(-1)-(7)(3)=-4-21=-25\\\\D_y=\left|\begin{array}{ccc}4&4\\-3&7\end{array}\right|=(4)(7)-(-3)(4)=28+12=40\\\\x=\dfrac{D_x}{D}\Rightarrow x=\dfrac{-25}{5}=-5\\\\y=\dfrac{D_y}{D}\Rightarrow y=\dfrac{40}{5}=8$

8 0

3 years ago

7a-4b=2b-5a solve for a

uysha [10]

Step-by-step explanation:

7a - 4b = 2b - 5a

7a + 5a = 2b + 4b

12a = 6b

a = 6b/12

a = b/2

5 0

3 years ago

Which statements could you use to conclude that JKLM is a parallelogram

frez [133]

Parallelogram: opposite angles are equal ; opposite sides are equal

<JML = <LKJ and <MJK = <MLK

Answer is the second option (opposite angles are equal)

<JML = <LKJ and <MJK = <MLK

5 0

3 years ago

Read 2 more answers

Question 5 (12 points)

Dima020 [189]

Answer:

see attached for diagram

a) √13

b) √29

c) 4

Step-by-step explanation:

Equation of the circle: $(x + 1)^2 + (y - 3)^2 = 16$

⇒ center = (-1, 3)

⇒ radius = √16 = 4

Distance between 2 points formula:

$\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

a) let (-1, 3) = $(x_1,y_1)$

let (2, 1) = $(x_2, y_2)$

$\implies \sqrt{(2+1)^2+(1-3)^2} =\sqrt{13}$

b) let (-1, 3) = $(x_1,y_1)$

let (4, 1) = $(x_2, y_2)$

$\implies \sqrt{(4+1)^2+(1-3)^2} =\sqrt{29}$

c) let (-1, 3) = $(x_1,y_1)$

let (3, 3) = $(x_2, y_2)$

$\implies \sqrt{(3+1)^2+(3-3)^2} =4$

4 0

2 years ago

Read 2 more answers

Payne saves $2,000 at a yearly simple interest rate of 2%. He earns $280 in interest. How many years did he save his money?

Flauer [41]

The answer if 7 years, if you multiply 2,000 by .02 it equals 40. so you divide 280 by 40 and get 7

6 0

3 years ago