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3 years ago

-X + 2y = 10 -3x+ 6y = 11

Mathematics

1 answer:

Tanzania [10]3 years ago

7 0

Answer:

1. y = 1 /2X +5

Step-by-step explanation:

2. m=1/2

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What is 7 9/14 in simplest form plz need help now plz plz plz plz

PSYCHO15rus [73]

The anwser is 5/14...... hope this helps! :)

4 0

3 years ago

Read 2 more answers

M = y2 - y1 / x2 - x1 What is the slope of line JK? A) 5/9 B) 9/5 C) -5/9 D) -9/5

meriva

So
(x,y)

J is -4 to the right and 2 up so
(-4,2)

K is 5 to the right and -3 up
(5,-3)

(x,y)

x1=-4
y1=2
x2=5
y2=-3

M= $\frac{y2-y1}{x2-x1}$
M= $\frac{-3-2}{5-(-4)$
M= $\frac{-5}{5+4}$
M= $\frac{-5}{9}$

answer is C -5/9

3 0

4 years ago

Read 2 more answers

What are these answers?

Shalnov [3]

#1 would be 45 degrees because you divide 360 by 8.

4 0

3 years ago

(3+i)^2 = c+di, find the value of d.

inna [77]

Answer:

d. $\displaystyle 6$

Step-by-step explanation:

$\displaystyle [3 + i]^2 = [3 + i][3 + i] = 9 + 6i + i^2 → 9 + 6i - 1 → 6i + 8$

Therefore, the d-value is 6.

Extended Information on the Complex Number System

$\displaystyle \sqrt{-1} = i \\ -1 = i^2 \\ -i = i^3 \\ 1 = i^4\:[every\:multiple\:of\:4]$

I am joyous to assist you anytime.

3 0

3 years ago

9. This piecewise function represents the Social Security taxes for 2009. How much did Rachel pay in Social

ANEK [815]

Answer:

Option c.

Step-by-step explanation:

It is given that the piecewise function represents the Social Security taxes for 2009.

$Tax=\begin{cases}0.062x & \text{ when } 0< x < 106,800 \\ \$6,621.60 & \text{ when } x > 106,800 \end{cases}$

We need to find Rachel's security tax if she earned $102,000 in 2009.

Since 102,000 lies in $0$ , therefore

$Tax=0.062x$

Put x=102000.

$Tax=0.062(102000)$

$Tax=6324$

So, the Social Security tax is $6324.

Therefore, the correct option is c.

5 0

4 years ago