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Serga [27]
2 years ago
7

Which of the following equations has one real solution?

Mathematics
1 answer:
erastovalidia [21]2 years ago
4 0

Answer:

4x2−12x+9=0

Step-by-step explanation:

The equation, 2x2+x+3=0, does not have a solution

The equation, x2+5x−3=0, equals -5/2+1/2√37 and -5/2+-1/2√37

The equation, x2−5x+4=0, equal 1 and 4

The equation, 4x2−12x+9=0, equals only 3/2

Hope this Helps

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PLEASE ANSWER FIRST ONE TO ANSWER GETS BRAINIEST!!!!!!!!!!!
Evgen [1.6K]

Answer:A

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
There are 130 people in a sport centre.
Mashcka [7]

Answer:

<h2>7/130</h2>

Step-by-step explanation:

Using set notation to answer the question. let:

n(U) be the total people in a sport centre =130

n(G) be number of people that use the gym.  = 76

n(P) be number of people that use the swimming pool. = 60

n(T) be number of people that use the track = 32

n(G∩P) be number of people that uses the gym and the pool = 23

n(P∩T) be number of people that uses the  pool and the track = 8

n(G∩T) be number of people that uses the gym and the track = 320

n(G∩P∩T) be number of people that uses all three facilities = 6

Using the relationship below;

n(U)= n(GUPUT)+n(GUPUT)'

where n(GUPUT)' is the number of people that doesn't use any facility.

Before we can get that, we need to know n(GUPUT) using the formula;

n(GUPUT) = n(G) + n(P)+n(T)-n(G∩P)-n(P∩T)-n(G∩T)+n(G∩P∩T)

n(GUPUT) = 76+60+32-23-8-20+6

n(GUPUT) = 123

n(GUPUT)' = n(U)- n(GUPUT)

n(GUPUT)' = 130 - 123

n(GUPUT)' = 7

This means that 7 person doesn't use any facility.

Probability that a person selected at random doesn't use any facility = n(GUPUT)' /n(U) = 7/130

3 0
3 years ago
A 3.5 ft by 5.5 ft mirror is placed in a wooden frame. What is the area of the frame
Alborosie

Answer:

19.25ft

Step-by-step explanation:

area = length x width so 3.5 x 5.5 = 19.25

8 0
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The weight of 1000 identical samples is 1 pound. what is the weight of 10 samples
Leno4ka [110]
1/100 of a pound.
since 1000/100=10, you must do 1/100 to get the weight of 10 samples.
6 0
3 years ago
F(x) = x^4- x^4 - 20<br><br> find all zeros by factoring and explaining the steps
Soloha48 [4]
No x-intercept/zero

Step by step

To find x-intercept/zero, substitute f(x)=0

F(x)=-20

0=-20

The statement is false for any value of

X=0

Since there is no solution for f(x)=0, there is no -intercept/Zero

Your welcome:)
5 0
3 years ago
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