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stiks02 [169]
3 years ago
15

Helpp! subtract8/9-1/3​

Mathematics
2 answers:
Archy [21]3 years ago
8 0

Answer:

=5/9 or 0.5

Step-by-step explanation:

Fed [463]3 years ago
8 0

Answer:

0.55

Step-by-step explanation:

8/9-1/3

8*1/9*1 - 1*3/3*3

8/9 - 3/9

8-3/9

5/9

0.55

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Determine which functions have two real number zeros by calculating the discriminant, b2 – 4ac. Check all that apply.
pantera1 [17]

Step-by-step explanation:

We need to write the function that have two real number zeros by calculating the discriminant i.e. b^2-4ac.

We know that,

If D>0  the roots are real and unequal

If D= 0 roots are real and equal

If D< 0 roots are imaginary or not real and unequal

Function (1)

f(x)=x^2 + 6x + 8\\\\D=6^2-4\times 1\times 8\\\\D=4

D>0  the roots are real and unequal

Function (2)

g(x)=x^2 + 4x + 8\\\\D=4^2-4\times 1\times 8\\\\D=-16

D<0  the roots are real and unequal

Function (3)

h(x)=x^2 -12x+32\\\\D=(-12)^2-4\times 1\times 32\\\\D=16

D>0  the roots are real and unequal

Function (4)

k(x)=x^2 +4x-1\\\\D=(4)^2-4\times 1\times (-1)\\\\D=20

D>0  the roots are real and unequal

Function (5)

p(x)=5x^2 +5x+4\\\\D=(5)^2-4\times 5\times 4\\\\D=-55

D<0  the roots are real and unequal

Function (6)

t(x)=x^2 -2x-15\\\\D=(-2)^2-4\times 1\times (-15)\\\\D=64

D>0  the roots are real and unequal

(1),(3),(4) and (6) have two real number zeroes.

5 0
3 years ago
Please help me I’ve asked this questions several times and I really need help with this I do not understand it at all
Ulleksa [173]

Answer:

(-5,-2)

(-4,-3)

(-6,-1)

Step-by-step explanation:

-5(x)-2(y)=-7

-4(x)-3(y)=-7

-6(x)-1(y)=-7

6 0
2 years ago
Can someone help on both of the questions, i dont get it
o-na [289]

Answer:

A. finished 1km

Step-by-step explanation:

b. 8km per hour

6 0
3 years ago
Can someone please help me figure out how to find the volume of this shape?​
Phantasy [73]

Answer:

The volume of the shape is 29376

Step-by-step explanation:

You multiply 12 x 17 and get 204 x 12 and get 2448 x 12 and get 29376.

4 0
3 years ago
Read 2 more answers
PLEASE THESE 2 HELPPPPPPPPPPPP
nirvana33 [79]

Answer:

c and g

Step-by-step explanation:

6 0
3 years ago
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