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adoni [48]
3 years ago
6

Solve the system of linear equations by graphing. y = x +2 y = -x -4 The solution is

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
8 0

Answer:

Solution: (-3,-1)

7nadin3 [17]3 years ago
7 0

Answer:

x = -3

Step-by-step explanation:

x + 2 and -x-4 is equal, because they are both y

we want to move the variables to one side and the numbers to the other side

x+x = 2x, and -4-2 = -6

so 2x = -6

and x = -3

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1000-200=800
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3 years ago
A coin is tossed, and a standard number cube is rolled. What is the probability that the coin shows heads and the number cube sh
Genrish500 [490]
The correct answer to this question is this one: "C. One-Fourth."

The total possibility that the head and even no on dice appears is 3.

The total possible choices are 12 {head ->(1,2,3,4,5,6) & tail->(1,2,3,4,5,6)}. so the probability is 3/12= 1/4.


These are independent events so the total probability will be the product of the individual probabilities:

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6 0
4 years ago
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REY [17]

The true statement about the graph of the function f(x) = x3 - 2x2 + 4x – 8 is (B) The function has 1 real zero that occurs 1 time.

<h3>How to determine the true statement</h3>

The function of f(x) is represented as:

f(x)=x^3-2x^2+4x-8

Differentiate the function f(x)

f'(x)=3x^2-4x+4

Calculate the minimum value using:

x = -\frac b{2a}

So, we have:

x = -\frac {-4}{2*3}

x = \frac {2}{3}

Substitute 2/3 in f'(x)

f'(2/3)=3*(2/3)^2-4(2/3)+4

f'(2/3)=\frac 83

The value of f'(2/3) is greater than 0.

This means that the function f(x) has 1 real zero, and it occurs once at point (2,0)

Hence, the true statement is (b)

Read more about functions at:

brainly.com/question/13136492

3 0
3 years ago
In the figure, Line BD bisecte angle ABC. <br><br>what is the length of line DC
NemiM [27]

BD is a angle bisector and Angle bisector theorem says
ratio of other sides of the triangle formed by bisector is equal
BA/AD=BC/CD
lets say AD is x so DC will be 4-x
3/x=4.5/4-x
x=1.6
AD=1.6units
so DC=4-x=4-1.6= 2.4 units
6 0
3 years ago
Write an equation for the line through (3.5,-2.3) x intercept 5.1
densk [106]
Slope = (-2.3 - 0)/(3.5 - 5.1) = -2.3/-1.6 = 1.4 
<span>The line's equation is </span>
<span>y - 0 = 1.4(x - 5.1) </span>
<span>y = 1.4x - 7.1</span>
4 0
3 years ago
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