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soldier1979 [14.2K]
1 year ago
9

If one wanted to solve the equation below using the quadratic formula, what would be the b value used to substitute into the qua

dratic equation.
3x 2 − 2 = - 5x
Mathematics
1 answer:
OLga [1]1 year ago
4 0

Answer:

b = 5

Step-by-step explanation:

All quadratic equations are formed in the format of a^{2} + bx + c = 0

Using this formula, we can re-arrange the equation to fit the given format.

3x^{2} - 2 = -5x
3x^{2} + 5x - 2 = 0

5 is plugged in for "b" in this equation, therefore b = 5.

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the angle of elevation of the top of a building from a point 80 ft away from the building on level ground is 70° determine the b
MA_775_DIABLO [31]
Draw a triangle with shortest side on the ground (horiz.).  The length of this side is 80 feet.  Two angles touch the ground:  a right angle, and the 70 degree angle.
 
Then the height of the building is the 2nd shortest side.

The tangent function is the appropriate one to use here:
                       opp          h
tan 70 deg = -------- = ----------
                        adj        80 ft
                                                                h
Since tan 70 deg  = 2.75,          2.75 = -------
                                                              80 ft

so h = building height = (80 ft)(2.75) = 219.8 ft
6 0
4 years ago
Fill in the arrows with the correct answer for each problem. Remember, begin at the START button highlighted in yellow.
Aliun [14]

Answer:

first 2.70, 4.00 , 7.20 , 7.65 , 6.00 , 12.60 , 62.50 , 45.00 ,32,00 , 12.60  and 2.00 done

Step-by-step explanation:

all correct

4 0
3 years ago
Read 2 more answers
A die is thrown . find the probability of (1) a multiple of 2 or 3​
tangare [24]

Answer:

A die is thrown which means that it can land on either 1-6 on the die.So if you want to find the probability of the multiple of 2 or 3....we have multiplies of 2 in the die from 1-6 which is 2,4 and 6 if you count them they are just 3 numbers and since there is a probability of it to land on any of them it will be 3/6 which is 1/2 if yiu divide by 3 to it's lowest term....Then multiple of 3 is 3,and 6.which will be 2/6 which is 1/3 if u cut to its lowest term. Or in the question means addition sign in probability then it is 2 or 3 which is (1/2)+(1/3)=5/6.Thank you for the question

7 0
3 years ago
what is the circumference of the circle with an arc length of 11 and an interior angle of 27° Round to nearest tenth plz
igor_vitrenko [27]

Answer:

146⅔ units

Step-by-step explanation:

27° : 11

360° : X

X = (11/27) × 360

X = 146 ⅔

6 0
3 years ago
Read 2 more answers
  5x + 11 = – 45 x + 11 = 2 - 4 ​
ANEK [815]

-45x-5x=11-11=2-4

Step-by-step explanation:

-50x = -2

-50/-2 = x

25=x

x=25

7 0
3 years ago
Read 2 more answers
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