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denis-greek [22]
3 years ago
15

Asap!! 85=2x(x^2+3)(2x+5) use quadratic equation

Mathematics
1 answer:
emmainna [20.7K]3 years ago
6 0

Answer:

Step-by-step explanation:

85=2x(x^2+3)(2x+5)

85=2x(2x^3+5x^2+6x+15)

85=4x^4+10x^3+12x^2+30x

4x^4+10x^3+12x^2+30x-85=0

2x^2(2x^2+5x+6)+30x-85=0

shoot, this isn't possible with quadratic, maybe you can get somewhere from here

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Select all the correct locations on the image.
schepotkina [342]

Answer:

box a and b

Step-by-step explanation:

5 0
2 years ago
10 points to the person who answers this whole thing:)
stepan [7]

Answer:

perimeter = 24

Step-by-step explanation:

it´s a regular hexagon = 6 sides

perimeter = 6(4x) = 24x

7 0
3 years ago
there are a total of 500 students in grades 1 through 5 in an elementary school. 17% of the total number of students are in 1st
Dmitry_Shevchenko [17]
17% of the total number of students are in 1st grade
→0.17×500=85 students in 1st grade
19% of the total number of students are in 4th grade
→0.19×500=95 students in 4th grade
<span>The number of 3rd-grade students is 9 less than the number of 4th-grade students.
→95-9=86 students in 3rd grade
</span><span>The number of 2nd-grade students is 10 less than the number of 5th-grade students.
1st grade+4th grade+3rd grade=85+95+86=266
500-266=234=total number of students in 2nd grade and 5th grade
Let x=2nd grade students
Let y=5th grade students
x+y=234
2nd grade students is 10 less than the number of 5th grade students
→x=y-10
Since x=y-10 so we substitute y-10 for x
→y-10+y=234
→2y-10=234
       +10  +10
→2y=244
→2y/2=244/2
→y=122 students in 5th grade
x+y=234
→x+122=234
→x=112 students in 2nd grade
ANSWERS:
1st: 85
2nd: 112
3rd: 86
4th: 95
5th: 122

</span>
4 0
3 years ago
Read 2 more answers
The vector u = (2700, 3700) gives the number of units of two models of laptops produced by a company. The vector v = (1900, 950)
Scilla [17]
Well, what is 6% of "v"? well, 6% of anything is just 6/100 * anything, so 6% of v is just 6/100 * v or 0.06v

so, v + 0.06v is just 1.06v  <--- that'd be the increased price for <1900, 950>

well, what's that vectors wise?  < 1900 * 1.06  , 950 * 1.06 >

that is <2014 , 1007>

now.. the Revenue is just price * quantity

so, I take it, it's just asking for the dot product of <2014, 1007> • <2700, 3700>

which should just be (2014 * 2700) + (1007 * 3700)
8 0
3 years ago
2 less than one third of the points that the Panthers scored
gayaneshka [121]
1/2 p-2 = x is the answer to 2 less than one third of the points the panthers scored...
8 0
3 years ago
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