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frez [133]
3 years ago
6

A,b,c, or d??? Need help someone

Mathematics
1 answer:
storchak [24]3 years ago
5 0

Answer:

the answer is A

Step-by-step explanation:

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How many solutions does this system have?
Julli [10]

Answer:

one solution

Step-by-step explanation:

* Lets start to solve the question

- The 1st equation x - y = -4

- The 2nd equation 3x + y = 8

- We will use the elimination method to solve this system of equation

∵ x - y = -4 ⇒ (1)

∵ 3x + y = 8 ⇒ (2)

- Add the two equation (1) and (2) to eliminate y

∴ x + 3x = -4 + 8

∴ 4x = 4

- Divide both sides by 4

∴ x = 1

- Substitute the value of x in equation (1) or equation (2) to find

  the value of y

- We will use equation (1)

∴ 1 - y = -4

Subtract 1 from both sides

∴ -y = -5

- Divide both sides by -1

∴ y = 5

∴ The solution is (1 , 5)

* The system has one solution

6 0
3 years ago
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1. is the expression <img src="https://tex.z-dn.net/?f=8x8%5E5" id="TexFormula1" title="8x8^5" alt="8x8^5" align="absmiddle" cla
Lady_Fox [76]

Answer:

No

Step-by-step explanation:

No, because 8x8^58x85 only takes the 8 that it is up against to the fifth power, but (8x8)^5(8x8)5 takes the whole expression to the fifth power.

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2 years ago
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I need helppp pleaseeeeee!!!!!!!!!!!!!!
Mrrafil [7]

Answer:

$5.55

Step-by-step explanation:

4 0
2 years ago
The total number of degrees, D, in an n-sided polygon is given by the formula D=180(n-2). When Janelle solves for n, she gets n=
Rus_ich [418]
<span>D = 180 * (n -2)
D = 180n -360
180n = D +360
n = (D / 180) + 2

So, the answer is "A"
And we can test this with a square, sum of angles = 360
n = (D / 180) +2
n = (360 / 180) +2
number of sides = 4
correct

Source:
http://www.1728.org/polygon.htm



</span>
3 0
2 years ago
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Triangle R S T was dilated with the origin as the center of dilation to create triangle ′′′ R ′ S ′ T ′ . The triangle was dilat
Sergeu [11.5K]

Answer:

8=6       10=7.5       12=9

Step-by-step explanation.

Divide the number by 4 then multiply it by 3

3 0
3 years ago
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