All categories

2 years ago

Y = 2x - 4 y = - 2x + 8 Math

Mathematics

1 answer:

WITCHER [35]2 years ago

3 0

Answer:

(3,2)

Step-by-step explanation:

Since both equations are equal to each others.

2x-4=-2x+8

2x+2x=8+4

4x=12

x=3

Substitute x = 3 in any given equations but I will substitute in the first equation.

y = 2(3)-4

y = 6-4

y = 2

You might be interested in

5 + 3(2+6) ÷ 4 can someone explain how to solve this

konstantin123 [22]

Answer: 4.5

Step-by-step explanation:

do the numbers that are in parentheses first which is 2+6=8 next is 5+3=8 then add both ur answers together then divide that by 4 which should equal 4.5

7 0

3 years ago

Read 2 more answers

Point B is a point of tangency. Find the radius r of OC. А 9 B r n

insens350 [35]

Answer:

Radius, r, is 3.75

Step-by-step explanation:

From the given diagram,

AB = 9

AC = 6 + r

BC = r

Thus applying the Pythagoras theorem, we have;

$/AC/^{2}$ = $/AB/^{2}$ + $/BC/^{2}$

$(6 + r)^{2}$ = $9^{2}$ + $r^{2}$

36 + 12r + $r^{2}$ = 81 + $r^{2}$

collecting like terms,

12r = 81 - 36

12r = 45

r = $\frac{25}{12}$

= 3.75

r = 3.75

The radius is 3.75.

3 0

2 years ago

Directions- Solve the following problem and write your answer in scientific notation. The mass of the moon is about 7.3X10^22 kg

Masteriza [31]

Answer:

Step-by-step explanation:

7.3×10^22 = 73,000,000,000,000,000,000,000

73,000,000,000,000,000,000,000 × 26,000,000 = 1,898,000,000,000,000,000,000,000,000,000 or 1.898 × 10^30

3 0

2 years ago

Read 2 more answers

Help ASAP I’ll mark you as brainlister

Rainbow [258]

Answer:

If your install Bratleby on your device, It will help you with this. But you will have to put in an email. and it will give 10 questions to answer for free. Sorry that I cannot help you with this.

Step-by-step explanation:

8 0

2 years ago

What's the value of x ? (I marked a random answer )

kondor19780726 [428]

X^2 = 60
x = +-sqrt(60)

6 0

2 years ago