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Diano4ka-milaya [45]
3 years ago
8

What is the value of the discriminant of the quadratic equation −1 = 5x2 −2x, and what does its value mean about the number of r

eal number solutions the equation has? The discriminant is equal to −16, which means the equation has no real number solutions. The discriminant is equal to −16, which means the equation has two real number solutions. The discriminant is equal to 24, which means the equation has no real number solutions. The discriminant is equal to 24, which means the equation has two real number solutions.
Mathematics
2 answers:
Svetlanka [38]3 years ago
7 0
5x^2 -2x +1 = 0

D = 4 -20 = -16 

so this mean that the quadratic has no real solutions 
pentagon [3]3 years ago
4 0

Answer:

A. The discriminant is equal to −16, which means the equation has no real number solutions.

Step-by-step explanation:

You might be interested in
an apple orchard sells apples in bags of 10 the orchid sold a total of 2430 apples one day how many bags of apples was this
zheka24 [161]
2340/10=234 bags of apples

hope this helps :)
5 0
4 years ago
Shaq wrapped 5 presents in 4 minutes. At that rate how many presents would he rap in 6 hours
posledela

Answer: 90 presents in 6 hours.

Step-by-step explanation:

First, you turn the 6 hours into minutes. You should get 360 minutes.

Next, divide 360 by 4 and you get the answer of 90.

--- Your answer is 90 presents.

5 0
4 years ago
Please help me!!!! Help me find the dimensions. :(
Gnom [1K]
The volume, surface area and the ratios of the SA to volume will be as follows:
Volume=πr²h
Area=2πr²+πdh
Ratio of SA to volume=Area/volume
π=3.14
Thus using the above formula:

1.
a]
Radius: 3 inches
Height: 2 inches
Volume=πr²h
volume=π×3²×2=56.52 in³

b]
Area=2πr²+πdh
2×π×3²+π×2×3×2
=56.55+37.68
=94.23 in²

c]
Ratio=area/volume
=94.23/56.52
=1.6672


1. 
Radius: 2 inches
Height: 9 inches

a]
V=πr²h
V=3.14*2^2*9
V=113.04 in³

b] 
Area=2πr²+πdh
=2*3.14*2^2+3.14*2*2*9
=25.12+113.04
=138.16 in²

c]
Ratio=area/volume
=138.16/113.04
=11/9

3.
Diameter=4 inches
Height= 9 inches

a]
V=πr²h
V=3.14×2²×9
V=113.04

b]
Area=2πr²+πdh
=2*3.14*2^2+3.14*4*9
=25.12+113.04
=138.16 in²

c]
Ratio=area/volume
=138.16/113.04
=11/9

4]
Diameter: 6 inches
Height: 4 inches

a]
Volume=πr²h
=3.14×3²×4
=113.04 in³

b]
Area=2πr²+πdh
=2×3.14×3²+3.14×6×4
=56.52+75.36
=131.88 in²

c] Ratio
131.88/113.04
=7/6

1. For the surface area to volume to be small it means that the area is smaller than the volume, for surface area to volume  be larger it means that the surface area is larger than the volume. It is more economical for the surface area to volume to be small because it will mean that small amount of materials make cans with large volume. This means cost of production is cheaper.

2. To evaluate this process let's use one of the dimensions:
Radius: 3 inches
Height: 2 inches:

i. add radius and height:
3+2=5 inches
ii. Multiply radius and height:
3×2=6
iii. Dividing the result from step 1 by the result in step 2:
5/6

iv. Multiply the result from step 3 by 2:
5/6×6
=5
This result does not seem to add up to the result in our earlier ratio. Thus we conclude that Khianna was wrong. This method can't work with 3-D figures.


7 0
4 years ago
Find the pair that has given product and sum. the product -40 the sum is -3
BlackZzzverrR [31]
The product is -8*5=-40& sum is -8+5=-3
4 0
4 years ago
Solve for x: (5x + 12) = 18
Aleksandr [31]
Solutions 

<span>Simplify brackets 
</span>
5x+12=18 

Subtract 12 <span>from both sides 
</span>
5x=18-12 

Simplify <span>18−12</span><span> to </span>6 

5x=6 

Divide both sides by <span>5 
</span>
x=<span>6/<span>5</span></span>
5 0
3 years ago
Read 2 more answers
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