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Yanka [14]
2 years ago
13

Which phrase correctly describes the solution to the quadratic equation?

Mathematics
1 answer:
otez555 [7]2 years ago
7 0

Answer:

Step-by-step explanation:

hello :

2x² + 25 = -x² + 10x

2x²+x²-10x+25 =0

3x²-10x+25=0

∆ = b²- 4ac      a=3  and  b=-10   and  c=25

∆ = (-10)²- 4(3)(25)=100 -300 = -200< 0

two complex solutions

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In a science experiment, Shelly has to weigh a compound in grams. The balance in her school measures in milligrams (mg). Shelly
exis [7]

Answer:

8.45 grams

Step-by-step explanation:

In a science experiment, Shelly has to weigh a compound in grams. The balance in her school measures in milligrams (mg). Shelly finds that the weight of the compound is 8,450 mg. What is the value in grams (g) that Shelly should enter?

1 mg = 0.001 g

8450 mg = x

Cross Multiply

= 8450 × 0.001 g

= 8.45 g

Therefore, Shelly should enter 8.45 grams

7 0
2 years ago
A skateboarder leaves a 12-foot tall ramp with an initial vertical velocity of 8 feet per sen
taurus [48]

To answer this, we substitute 12 ft to the f(h) in the given equation,   
f(h) = -8t² + 8t + 12 = 12

Subtracting 12 from both sides of the equation will give us an answer of,

-8t² + 8t = 0

Then, we transpose 8 to the other side and divide the equation by -8 and t, we get an answer of t = 1 second. 

7 0
1 year ago
Read 2 more answers
−0.63p − 5.04 + 3.57 = 7.05 + 2.21p?
grandymaker [24]

Answer:

p = -3

Step-by-step explanation:

−0.63p − 5.04 + 3.57 = 7.05 + 2.21p

−0.63p − 1.47 = 7.05 + 2.21p    (add 0.63p to both sides)

− 1.47 = 7.05 + 2.21p + 0.63p

− 1.47 = 7.05 + 2.84p  (subtract 7.05 from both sides)

− 1.47 - 7.05 =  2.84p

-8.52 = 2.84p  (rearrange)

2.84p = -8.52   (divide both sides by 2.84)

p = -8.52 / 2.84

p = -3

6 0
3 years ago
Read 2 more answers
Find the slope given the following points: (8,-6) (-9,12)
skelet666 [1.2K]

Answer:

Slope (m) =  18 /-17 =-1.0588235294118

Step-by-step explanation:

3 0
3 years ago
How many solutions does this equation have?
Greeley [361]

Answer:

No solution

Explanation:

-4+19-7f = -15-7

cancel terms on both sides ( add 7f on both sides)

Calculate the sum

-4+19= -15

-4+19=15

15 = -15

The statement 15 = -15 is false so there is no solution :)

4 0
2 years ago
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