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brilliants [131]
3 years ago
15

1x²-4x-21=0 solve for x​

Mathematics
1 answer:
mr_godi [17]3 years ago
6 0
Slice for slush is what I think you had to do x and 0 21
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jen makes necklaces by stringing different color beads. each necklace is 18 inches long. jen has an 86-inch length of beaded str
miv72 [106K]
You have to divide 86 by 18 .which she can make about 5 necklaces
4 0
4 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!!
Pani-rosa [81]

Answer:

750 Ml

Step-by-step explanation:

5.25L ÷ 42 = 0.125L

1 Liter = 1000 Mililiter

0.125 × 1000 = 125

125Ml × 6 = 750Ml

6 0
3 years ago
when you solve a problem by working backward, what does your answer represent? how can you check your answer?
Rus_ich [418]
Lets say you have an addition problem

3 + 7 = ?

To figure that you can just add in your head since its easy.

3 + 7 = 10

You can work backwords to check to see if your awnser is right.

When you work backwards you do the opposite of what you are doing, so if your adding the opposite would be subtracting, and if your multiplying than the opposite would be dividing.

So you could work it out like this:

(Regular⬇️)
3 + 7 = 10
(Backwards⬇️)
10 - 7 = 3

And if you get the same numbers that were in the original awnser than you are correct! Hope this helps!!!!
8 0
3 years ago
HURRY PLS The length of time in hours of two airplane flights are represented by the following functions, where x is the number
mamaluj [8]

Answer:

h(x) = 0.0045x – 0.4

Step-by-step explanation:

The length of time in hours of two airplane flights are represented by the following functions, where x is the number of miles for the flight.

Flight A: f(x) = 0.003x - 1.2

Flight B: g(x) = 0.0015x + 0.8

Then the function  

h(x) = f(x) + g(x) = (0.003 + 0.0015)x + (-1.2 + 0.8) = 0.0045x - 0.4.

Therefore, the third option is the right option. (Answer)

4 0
3 years ago
Read 2 more answers
What is the surface area of the right cone with the a raidus of 3 and a slant hieght of 15
Novosadov [1.4K]
The surface area of the cone will be  : 169.65 so it would be answer A as          54 x pi = 169.646003
6 0
3 years ago
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