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Luda [366]
3 years ago
5

Solve the quadratic equation 27y^2-314y+699​

Mathematics
1 answer:
Burka [1]3 years ago
3 0

Answer:

3; \frac{233}{27}.

Step-by-step explanation:

1) to calculate the discriminant of the given equation:

D=(314/2)²-699*27=5776.

2) to calculate the roots of the given equation:

\left[\begin{array}{ccc}y=\frac{157-\sqrt{5776} }{27} \\ y=\frac{157+\sqrt{5776} }{27} \end{array}

\ \left[\begin{array}{ccc}y=3\\y=\frac{233}{27} \end{array}

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For the equation, complete the solution. 8x + y = −7 <br> (x, y) = , 1
butalik [34]

Answer:

(x, y) = (-1, 1)

Step-by-step explanation:

8x + y = −7

for y = 1

8x + 1 = -7

subtract 1 from boh sides

8x = -8

divide bot sides by 8

x = -1

(x, y) = (-1, 1)

7 0
3 years ago
Find the product of 20x9x5. tell which property you used
alexdok [17]
Your product is 900 and you used associative property
3 0
4 years ago
Yesterday noah ran 2 1/2 miles in 3/5 hour. Emily ran 3 3/4 miles in 5/6 hour. Anna ran 3 1/2 miles in 3/4 hour how fast in mile
Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

To calculate the speed of each one we proceed as follows:

speed=distance/time

a] Noah's speed:

distance=2.5 miles

time=3/5 hours

speed=(2 1/2)/(3/5)

=(5/2)/(3/5)

=5/2×5/3

=25/6

=4 1/6 mi/hr

Emily's speed

distance=3 3/4 miles

time=5/6 hour

thus

speed=(3 3/4)/(5/6)

=15/4)/(5/6)

=15/4×6/5

=4 1/2 mi/hr

Anna's speed:

distance=3 1/3 miles

time=3/5

speed=(3 1/3)/(3/5

=(10/3)/(3/5)

=10/3×5/3

=5 5/9 mi/hr

Anna was the fastest

6 0
3 years ago
Read 2 more answers
An _____has income and expenses
diamong [38]

Answer:

Step-by-step explanation:

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6 0
4 years ago
Read 2 more answers
2) What is the relationship between the coefficient of f(x)=a/x/ and its effects on the graph?
True [87]

<em>Greetings from Brasil...</em>

The coefficient a in a linear function (or even a modular function) implies the slope of the function line. The higher the value of a, the greater the slope of the line. the lower the value of a, the lower the slope of the line

4 0
3 years ago
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