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3 years ago

A quadratic equation is shown below: 4x2 − 12x + 9 = 0

1 answer:

6 0

A)

The discriminant (radicand) is √(b^2-4ac), let us call this "d" for the discriminant.

If:

d<0, there are no real solutions (though there are two imaginary ones)

d=0, there is one real solution

d>0, there are two real solutions.

In this case, d=12^2-4(4)9

d=144-144

d=0

So there is one real solution.

B)

9x^2-30x+25=0

9x^2-15x-15x+25=0

3x(3x-5)-5(3x-5)=0

(3x-5)(3x-5)=0

(3x-5)^2=0

x=5/3

x=1 2/3

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ANSWER THE FOLLOWING QUESTION FOR 5 POINTS

kkurt [141]

Answer:

they do inddeed make our lives whole!

Step-by-step explanation:

why dogs send happiness through us:

Dogs have served as man’s best friend and worked alongside us for thousands and thousands of years. The loyal companionship and unconditional love of dogs has been written about throughout human history.

Our canine buddies are always there for us, in good times and in bad. They are our friends when we are lonely and a reason to laugh when we are down. They are faithful, judgment-free sounding boards who we can play with, snuggle with, and – most importantly – be ourselves with.

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Our four-legged friends teach us patience, compassion, generosity, and kindness. These are all qualities that carry over into our personal and professional lives, and make us better equipped to work and socialize with others.

A study published in the Journal of Personality and Social Psychology revealed that “pet owners exhibited greater self-esteem, were more physically fit, were less lonely, were more conscientious, were more socially outgoing, and had healthier relationship styles (i.e., they were less fearful and less preoccupied) than non-owners.”

Dogs inspire us to get outside and be more active, which can lead to increased mental well-being over time. One way to look at it is that dogs make us happy because they are the catalyst for other healthy behaviors in our lives.

-petsforpatriots.org/dogs-make-us-happy/

5 0

3 years ago

Use the graph below for this question:

Anastaziya [24]

Answer:

-4

Step-by-step explanation:

Do (y1-y2)/(x1-x2) so (3-(-5))/(0-2)

8/-2=-4

8 0

2 years ago

Consider this three-digit sequence: 943. Is the first digit the largest or the second digit the smallest, AND, is the third digi

Delicious77 [7]

your question isn't very clear, but I'll try to answer

943
the first digit (9) is the largest, the second digit (4) is the 2nd largest, and the third digit (3) is the smallest.
the first digit is odd, the second is even, and the third is odd

8 0

3 years ago

Figure ABCD is a kite. Find the value of x.

julsineya [31]

Answer:

x=5

Step-by-step explanation:

i think you posted this question twice, but here it is:

in order for this figure to truly be a kite, AD and AB have to be equal.

So:

4x=x+15

now we must solve the equation:

3x=15

x=5

5 0

3 years ago

Suppose that each time Giannis Antetokounmpo shoots a free throw, he has a 3/4 probability of success. If Giannis shoots three f

GREYUIT [131]

Answer:

84.38% probability that he succeeds on at least two of them

Step-by-step explanation:

For each free throw, there are only two possible outcomes. Either Giannis makes it, or he does not. The free throws are independent. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$