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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 ASAP:)!!
Yakvenalex [24]

Answer:

Quadratic

Step-by-step explanation:

2705/500 = 5.41
10,818/1000 = 10.818
24 341/1,500 =24.227

43,273/2000 = 21.6365
67,613/2500 = 27.0452

Rate of change changes

4 0
2 years ago
Mr. McDowell invested $14,000 in equipment to print yearbooks for Ardrey Kell High School. Each yearbook costs $7 to print and s
Feliz [49]
14000+7x=35x (x being the number of books) solve for x and you have your answer. 14000=35x-7x=28x therefore x=14000/28=500 so he needs to sell 500 books before he breaks even.
8 0
4 years ago
Elaine wants to buy a couch for $899.99 if she pays $69.75 in sales tax what is the sales tax percent explain steps
tigry1 [53]

Answer:

the sales tax percent is therefore: 7.75%

Step-by-step explanation:

The sales tax she paid is $69.75, for a sofa whose sale price is $899.99.

Since $69.75 is the unknown (x) percent of $899.99, then we write this statement in math terms as:

69.75 = x * 899.99

solving for x we get:

x = 69.75 / 899.99

x = 0.0775

this is the decimal form of the percent, and in order to write it as percent, we multiply it by 100:

the sales tax percent is therefore: 7.75%

6 0
4 years ago
How do you factor m^2=2m?<br><img src="https://tex.z-dn.net/?f=m%20%5E%7B2%7D%20%20%3D%202m" id="TexFormula1" title="m ^{2} = 2
Sonbull [250]

First move all terms to one side:

m^2=2m\implies m^2-2m=0

Then all terms on the left side share a common factor of m:

m(m-2)=0

The zero product product property says that if ab=0, then a=0 or b=0. So either m=0 or m-2=0\implies m=2.

5 0
4 years ago
The larger of two numbers is twice the smaller . If the sum is 54 find the numbers
Rom4ik [11]
So there are 2 numbers

pretend the smaller number is x, so the larger number must be 2x because it's twice as large

so 2x+x equals 54

simplifies to 3x=54

x= 18

the smaller number is 18 and the larger one is 36 (because 36 is 18 x 2)
6 0
3 years ago
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