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leonid [27]
3 years ago
11

What is the discriminant of the quadratic equation 2x + 5x2 = 1? –18 –16 22 24

Mathematics
2 answers:
777dan777 [17]3 years ago
8 0

Answer:

D.24

Step-by-step explanation:

kakasveta [241]3 years ago
5 0
Hello,

Answer D

Δ=2²-4*5*(-1)=4+20=24

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Find the length of U and V. Show work. Giving out brainliest answer.
MrRissso [65]

Answer:

u =√6

v =√5

Step-by-step explanation:

u = √(1²+2²+1²) =√(1+4+1) = √6

v = √(1²+2²) =√(1+4) = √5

3 0
3 years ago
What is the slope of y=2x+1
Eva8 [605]

Answer:

2

Step-by-step explanation:

it is always the number before x, or the given variable

3 0
3 years ago
Two men on the same side of a tall building notice the angle of elevation to the top Of the building to be 30 and 60 respectivel
Vladimir [108]

Answer:

  115.47 feet

Step-by-step explanation:

You know the relation between opposite and adjacent sides of an angle in a right triangle is ...

  Tan = Opposite/Adjacent

If the "adjacent" side of the angle of elevation is the distance of the man from the building, we have ...

  tan(30°) = (100 ft)/d1

and

  tan(60°) = (100 ft)/d2

Solving these equations for d1 and d2 gives ...

  d1 = (100 ft)/tan(30°)

  d2 = (100 ft)/tan(60°)

Then the distance between the two men is ...

  d = d1 -d2 = (100 ft)(1/tan(30°) -1/tan(60°)) ≈ 115.47 ft

The distance between the two men is about 115 feet.

4 0
4 years ago
Find the value of -7 + 3(-12) = (-3).<br> 0-16<br> -40<br> -19
Serhud [2]

Answer:

-40

Step-by-step explanation:

7 0
3 years ago
Please s helppppppo!!!!
Arturiano [62]

Answer:

22

Step-by-step explanation:

Hey There!

So if you didn't know angle H is a right angle. So we are given two angles and they want us to find the missing angle

Remember all of the angles of a triangle add up to equal 180

so we subtract the given angles from 180 to find the missing angle

180-90-68=22

so we can conclude that angle G = 22

4 0
3 years ago
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