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masha68 [24]
3 years ago
13

What is the discriminant of the equation -4.9t^2+6.1t-0.8=0

Mathematics
1 answer:
vlabodo [156]3 years ago
8 0
\sqrt{6.1^2-4*-4.9*-0.8}  ≈ 4.64
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In the diagram, JOK and MON are straight lines. Angle NOP and Angle NOQ are complimentary angles. Calculate the value of x - y.
Pepsi [2]

Answer:

x - y = 118

Step-by-step explanation:

Since ∠ NOP and ∠ NOQ are complimentary then ∠ POQ = 90°

Since JOK is a straight line then

∠ JOP + ∠ POQ + ∠ QOK = 180 , that is

76 + 90 + y = 180

166 + y = 180 ( subtract 166 from both sides )

y = 14

Since MON is a straight line then

∠ MOK + ∠ KOQ + ∠ QON = 180, that is

x + 14 + 34 = 180

x + 48 = 180 ( subtract 48 from both sides )

x = 132

Thus

x - y = 132 - 14 = 118

5 0
3 years ago
Write each of the mixed numbers below as a fraction greater than one, and write each of the fractions greater
Softa [21]

Answer:

a. 13/3

b. 3 3/4

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Step-by-step explanation:

a. 4 1/3 given

4*3=12 multiply the whole numbers with the denominator

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13/3 put sum over denominator

b. 15/4 given

15/4=3 with a remainder of 3 divide numerator by denominator

3 3/4 rewrite as mixed number

d. 15/8 given

15/8=1 with a remainder of 7 divide numerator by denominator

1 7/8 rewrite as mixed number

c. 3 1/2 given

3*2=6 multiply whole number by denominator

6+1=7 add numerator to product

7/2 put sum over denominator

7 0
2 years ago
PLEASE HELP!!!!!!!!!!!!!!!!!!!
Advocard [28]

Answer:

i believe the answer is a. There are no solutions to the system because the equations represent parallel lines.

Step-by-step explanation:

3 0
3 years ago
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saul85 [17]

Answer:.

Step-by-step explanation:.

7 0
3 years ago
Brandon buys a radio for $48.17 in a state where the sales tax is 7%. How much does he pay in taxes? If necessary, round to the
shusha [124]

Answer:

49.0809

Step-by-step explanation:

Round it up to 49.10

8 0
2 years ago
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