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Reil [10]
3 years ago
10

What are the values of a, b, and c in the quadratic equation 0 = 5x – 4x2 – 2?

Mathematics
1 answer:
Sever21 [200]3 years ago
9 0

Answer:

a = -4

b = 5

c = -2

(That's the 3rd line you posted)

Step-by-step explanation:

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I do t know how to do it
Luba_88 [7]

We know: the sum of the angles measures in a triangle is 180°.

Therefore we have the equation:

64° + 75° + α = 180°

139° + α = 180°      <em> subtract 139° from both sides</em>

α = 41°

α and ∠2 are Supplementary Angles - they add up to 180°.

α + m∠2 = 180°

41° + m∠2 = 180°    <em>subtract 41° from both sides</em>

<h3>m∠2 = 139°</h3>

7 0
3 years ago
Can someone answer this pleaseee
vichka [17]

Answer:

1.  384 feet squared 2. 60 cubic feet 60 3. 444

Step-by-step explanation:

best i did

6 0
3 years ago
15. A cylindrical glass 10 cm tall and 8 cm in diameter is filled to 1 cm
ANTONII [103]

Answer:

No. The new height of the water is less than the height of the glass(6.33 cm<10 cm)

Step-by-step explanation:

-For the water in the glass to overflow, the volume of the inserted solid must be greater than the volume of the empty space or the ensuing height of  water >height of glass.

#Volume of the golf ball:

V=\frac{4}{3}\pi r^3\\\\=\frac{4}{3}\pi \times 4^3\\\\\approx 268.08\ cm^3

#The volume of the water in the glass:

V=\pi r^2 h\\\\=\pi \times 4^2\times 10\\\\\approx 50.27\ cm^2

We then equate the two volumes to the glass' volume to determine the new height of the water:

V=\pi r^2h\\\\(206.08+50.27)=\pi r^2 h\\\\h=318.35/(\pi \times 4^2)\\\\=6.33\ cm

Hence, the glass will not overflow since the new height of the water is less than the height of the glass(6.33 cm<10cm).

4 0
3 years ago
Two vertical angles will always equal 180 degrees
Margarita [4]

Answer:

Hi there!

Vertical angles are angles that are opposite each other when two lines intersect each other. The two pairs of opposite angles are equal to each other. The two pairs of neighboring angles are supplementary, meaning they add up to 180 degrees.

7 0
3 years ago
Your checking account has grown from 2,675.25 to 3,750.25. what is your growth rate in percentage
zvonat [6]

Answer:

40.2%

Step-by-step explanation:

(New-old)/old

(3750.25-2675.25)/2675.25=0.4018

0.4018×100= 40.2%

6 0
3 years ago
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