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daser333 [38]
3 years ago
9

2x + y = 13 What y????

Mathematics
2 answers:
hoa [83]3 years ago
8 0

Answer:

2(5) + 3 = 13

Step-by-step explanation:

x=5

y=3

2x+y=13

2(5)+3=13

10 +3 =13

kari74 [83]3 years ago
6 0

Answer:

Step 1

2x+y+-y = 13 +-y

2x=-y+13

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Lisa [10]
The correct answer is 5x+5
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3 years ago
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1 Suppose you choose at random a real number X from the interval [2, 10]. (a) Find the density function f(x) and the probability
antoniya [11.8K]

Answer:

Step-by-step explanation:

Given that you choose at random a real number X from the interval [2, 10].

a) Since this is a contnuous interval with all number in between equally likely

E = probability for choosing a real number is U(2,10)

pdf of E is \frac{1}{8}

b) P(X>5) = \int\limits^10_5 {1/8} \, dx = \frac{5}{8}

P(5

For

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P(X<5 or x>7) = 1-P(5<x<7)

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4 0
3 years ago
What is the total number of outcomes in the sample space for Tossing a coin and spinning a spinner with 5 equal sections
tangare [24]
2/5 i believe 
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hope it helps

7 0
4 years ago
What is the discriminant of the quadratic equation 0 = –x2 + 4x – 2?
kvv77 [185]
0=-x2+4x-2
+x2-4x+2=+x2-4x+2
___________________
x2-4x+2=0

(-4)^2-4(1)(2)

16-8

Final Answer: 8

3 0
3 years ago
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A certain game consists of rolling a single fair die and pays off as follows: $10 for a 6, $7 for a 5, $4 for a 4, and no payoff
beks73 [17]

Answer:

$3.50

Step-by-step explanation:

Given:

$10 for a 6, $7 for a 5, $4 for a 4, and no payoff otherwise

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Expectwd value ; E(x)

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E(x) = 3.50

6 0
3 years ago
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