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Black_prince [1.1K]
4 years ago
7

Write a quadratic equation whose roots are -4 and one and who's leading coefficient is five

Mathematics
1 answer:
Alex4 years ago
7 0

Step-by-step explanation:

- 4 and 1 are roots.

Therefore, (x + 4) & (x - 1) are factors and 5 is leading coefficient.

Therefore, required quadratic equation is:

5 (x + 4) (x - 1)  \\  = 5( {x}^{2}  - x + 4x - 4) \\  = 5( {x}^{2}  + 3x - 4) \\  = 5 {x}^{2}  + 15x - 20

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O A. {1,2,3,4,...)

Step-by-step explanation:

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3 years ago
If 1 1/4 kg sugar cost 2.25, find the cost of 3 1/4 kg of sugar
GalinKa [24]
<h2><u><em>$6.25</em></u></h2><h2><u><em></em></u></h2>

Step-by-step explanation:

because 1 kg is worth 2 is 1/4 is worth .25

so multiply 2 by 3 and add 1/4

good luck hope this helps.

3 0
3 years ago
Read 2 more answers
3) A box of tile contains 12 tiles. If
vichka [17]

Answer:

3 tiles left

Step-by-step explanation:

You can only use a maximum of 9 tiles to make a perfect square. You would need 7 more tiles to make a larger square. Having used 9 tiles, you will have 3 leftover. (12 - 9 = 3)

Hope I helped!

3 0
3 years ago
5 = 4a - 7<br> 3 - 8c = 35<br> -1/2x -7 = -11<br> Solve this please.
Hitman42 [59]

Answer:

a=3, c=-4, x=8

Step-by-step explanation:

5=4a-7

4a-7=5

4a=5+7

=12

a=12÷4

=3

3-8c=35

-8c=35-3

=32

c=-32÷8

=-4

-1/2x-7=-11

-1/2x=-11+7

=-4

x=4÷1/2

=4/1×2/1

=8

3 0
3 years ago
Given Sine (30 degrees) = one-half and Cosine (30 degrees) = StartFraction StartRoot 3 EndRoot Over 2 EndFraction, use trigonome
MA_775_DIABLO [31]

Answer:

square root 3

Step-by-step explanation:

6 0
4 years ago
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