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Bezzdna [24]
3 years ago
7

What is the discriminant of the quadratic equation 0 = –x2 4x – 2? a.–4 b.8 c.12 d.24

Mathematics
1 answer:
MrMuchimi3 years ago
4 0
X^2 - 4x + 2
d = b^2 - 4ac, where a = 1, b = -4 and c = 2
d = (-4)^2 - 4 x 1 x 2
d = 16 - 8
d = 8
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Please help me gow to this bro , im confused
Airida [17]
Ok so remember that a circle is 360 degrees and a line is 180 degrees
so

IKJ
ok so we see that we have a triangle
to find the internal angles (which add to 180)
we do, opposite angles are equal
JIK=59
also CJI+KJI=180 so 132+KJI=180, KJI=48
so
59+48+IKJ=180
73=IKJ




HIB
we can assume that AB is paralell to CD
so therefor IJK=HIB=48 (from previous question)

EIJ is adding to EIH to get 180
EIJ+59=180
EIJ=121

AIK=AIJ+JIK
JIK=59
AIJ=HIB=48
AIK=59+48=107


IKJ=73
HIB=48
EIJ=121
AIK=107
6 0
3 years ago
Stephanie, Mike , and Howard gather blackberries for their grandmother. Stephanie picks 4 3/8 pounds, Mike picks 2.5 pounds, and
Zarrin [17]

Answer:B

Step-by-step explanation:

I don’t know

8 0
3 years ago
Read 2 more answers
In 2015, eighty-seven babies per one thousand died before reaching one year of age. This figure is called the
k0ka [10]

In 2015, eighty-seven babies per one thousand died before reaching one year of age. This figure is called the infant mortality rate.

Infant mortality is defined as a child dying before turning one. The number of newborn deaths for every 1,000 live births is known as the infant mortality rate. The infant mortality rate is a significant indicator of the general health of a society in addition to providing us with valuable information on maternal and baby health. In the United States, there were 5.4 infant deaths for every 1,000 live births in 2020.

Learn more about infant mortality rate here: brainly.com/question/13493110

#SPJ4

8 0
2 years ago
Determine the exact and approximate circumference of the circle.
madam [21]

Answer:

C (circumference) =2×π×r

we've got a 30-60-90 triangle

which means 9=d√3, d=5.19 exact inches

or ≈5.20 inches

d=2r, r=5.20÷2≈2.60 inches

C=2×3.14×2.60≈16.328

3 0
3 years ago
Without using a calcuator, determine the number of real zeros of the function f(x)=x^3+4x^2+x-6
Natalija [7]

Answer:

-3, -2, 1

Step-by-step explanation:

5 0
2 years ago
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