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Andrews [41]
3 years ago
12

How many solutions does thisquadratic have?f(x) = -4x2 + 12x - 9​

Mathematics
1 answer:
BartSMP [9]3 years ago
4 0

Answer:

one, (1.5, 0)

Step-by-step explanation:

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Please help this quiz is worth a lot of point
sergiy2304 [10]

Answer:

YZ = 1

XY = 1.5

XYZ 1.33

Step-by-step explanation:

5 0
2 years ago
I need help please I have to finish this
4vir4ik [10]

Answer: x=4

Step-by-step explanation:

We know that line segment AC= AB + BC

we also know that AB= 3x+8 and BC= 2x-5

by substituting these, we get AC= (3x+8)+(2x-5)

AC is given as being 23, so we know that

23= (3x+8)+(2x-5)

by combining like terms, we get that

5x+3=23

simplify this to get that x=4

6 0
3 years ago
calculate how much 1% salt solution must be mixed with how much 5% salt solution to make 100 milliliters of 2% salt solution. yo
Setler79 [48]
Let x be the amount (the volume in milliliters) of the 5% solution to be mixed.

Then the volume of the 1% solution is 100-x milliliters.


Then your "concentration" equation is

%280.01%2A%28100-x%29+%2B+0.05%2Ax%29%2F100 = 0.02,


or, equivalently,

100-x + 5*x = 200,

which implies

4x = 100 ----> x = 100%2Fx = 25.


Answer: 25 milliliters of the 5% solution must be mised with 100-25 = 75 milliliters of the 1% solution.
7 0
3 years ago
What is the density of the oak board
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We need more info or a pic
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2 years ago
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DUMB KID need SMART KID help.Thanks​
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Answer:

SAS

Step-by-step explanation: Which stands for Side-Angle-Side.

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