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2 years ago

The equation of a parabola is given.

Mathematics

1 answer:

Irina18 [472]2 years ago

5 0

y = −1/4x^2 + 4x − 19

1. Use x = -b/2a to find x.

x = -4/2(-1/4)

x = -4/(-1/2)

x = -4/1 • (-2/1)

x = 8/1

x = 8

2. Plug x into the function to find your vertex.

Replace every x you see in the function with 8 and do the math.

Take it from here.

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Rosa is saving money for a trip. She has already saved $250 and plans to save $40 per week. This situation can be represented by

MissTica

what i got was 490 what i did was first i did 40 times 6 then i added 250 and got 490

6 0

2 years ago

2. Let Y denote the average starting salary for 2014 U.S. college graduates, measured in dollars. Suppose that the average annua

Dafna11 [192]

Answer:

Average salary: 56

Standard deviation of the salary: 8

Step-by-step explanation:

$56,000 dollars is 56 thousand dollars.

$8,000 is 8 thousand dollars.

The mean is the average. So the average, measured in thousands of dollars, is 56.

The standard deviation is $8,000. So, the standard deviation measured in thousands of dollars, is 8.

5 0

2 years ago

For his exercise today, Manuel plans to both run and swim. Let r be the number of laps he runs and lets be the number of laps he

QveST [7]

Answer:

The Inequality describing the situation is $3r+2s>45$ .

Step-by-step explanation:

Let the number of laps he runs be $'r'$

Let the number of laps he swims be $'s'$

Now Given:

Time required to run each lap = 3 min

Time required to swim each lap = 2 min

Total minutes he need to exercise more than 45

we need to write the Inequality representing the same.

Solution:

Now we can say that;

Time required to run each lap multiplied by the number of laps he runs plus Time required to swim each lap multiplied by the number of laps he swims should be greater than Total minutes he need to exercise.

framing in equation form we get;

$3r+2s>45$

Hence The Inequality describing the situation is $3r+2s>45$ .

6 0

2 years ago

Find the length of the line segment formed by the points (2, 3) and (2, 5)

SCORPION-xisa [38]

Answer:

2 units

Step-by-step explanation:

Given data

The points are (2, 3) and (2, 5)

x1= 2

y1= 3

x2= 2

y2= 5

substitute into the distance between two points formula

d=√((x_2-x_1)²+(y_2-y_1)²)

d=√((2-2)²+(5-3)²)

d=√(2)²)

d=√4

d= 2 units

Hence the length is 2 units

3 0

2 years ago

Using the difference in perfect squares completely factor the binomial x^2-121

Murrr4er [49]

Answer:

unditified?

Step-by-step explanation:

6 0

3 years ago