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3 years ago

2. What is a line of symmetry? (1 Point)

Mathematics

1 answer:

neonofarm [45]3 years ago

8 0

Answer:

Step-by-step explanation:

I believe you're refering to an "axis of symmetry." This is most often seen in quadratic equations. If the parabolic graph opens up or down, the axis of symmetry is the vertical line passing through the vertex, and the graph is symmetrical about this axis. The same applies to a parabolic graph that opens left or right.

If y = ax^2 + bx + c, the equation of the axis of symmetry is x = -b / (2a).

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A ball is thrown vertically upward. After t seconds, its height h (in feet) is given by the function h(t)=92t-16t^2. What is the

nata0808 [166]

Answer:

132.25 feet

Step-by-step explanation:

Since the function is a quadratic representing height, and the coefficient of the t² is negative, the vertex of the parabola will be the maximum height achieved by the ball.

The general form for a quadratic equation is ax² + bx + c,

here a is -16, and b is 92

To find the x coordinate of the vertex, use x = -b/(2a)

We have x = -92/[2(-16)]

x = -92/-32

x= 23/8

Now plug that into the equation to find the y value, which will be the height...

y = 92(23/8) - 16(23/8)²

y = 2116/8 - 16(529/64)

y = 1058/4 - 529/4

y = 529/4

y = 132.25

6 0

3 years ago

Read 2 more answers

Which expression is number 20

borishaifa [10]

this looks like confusing stuff

7 0

4 years ago

Can you answer the question in the picture please?

wlad13 [49]

Answer:

Step-by-step explanation:

5x5+5=30

8x9+7=79

24x3+28=100

7 0

3 years ago

Point R is located at (1, 2) on a coordinate grid. Point S is located at (4, 5) on the same

Aleksandr-060686 [28]

Answer:

4.2 units

most likely answer choice B

Step-by-step explanation:

(1, 2) and (4, 5)

To find the distance between two points, we use the distance formula:

$d = \sqrt{(x_{2}-x_1)^2 + (y_2-y_1)^2 }$

Let's plug in what we know.

$d = \sqrt{(4 - 1)^2 + (5 - 2)^2 }$

Evaluate the parentheses.

$d = \sqrt{(3)^2 + (3)^2 }$

Evaluate the exponents.

$d = \sqrt{(9) + (9) }$

Add.

$d=\sqrt{18}$

Evaluate the radical.

d = 4.24

Round to the nearest tenth.

d = 4.2 units

*note: The answer choice is 4.6. I'm not sure if that is a typo on someone's end, but the distance between these two points is exactly 4.24264068712 units.

Hope this helps!

6 0

3 years ago

On a snow day, Jada created two snowmen in her yard. Snowman A was built to a height of 51 inches and Snowman B was built to a h

MaRussiya [10]

From the graph of the linear functions, we have that both snowman's will have the same height of 21 inches after 5 hours.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.

b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

For this problem, we have that:

The initial height is the intercept.

The melting rate, as a negative, is the slope.

Hence the functions are given as follows:

A(t) = 51 - 6t.

B(t) = 36 - 3t.

The functions are graphed at the end of the answer, with <u>A(t) in red and B(t) in blue,</u> and they intersect at (5,21), meaning that both snowman's will have the same height of 21 inches after 5 hours.

More can be learned about linear functions at brainly.com/question/24808124

#SPJ1

7 0

2 years ago