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3 years ago

Estimate the value of the function x=-1

Mathematics

1 answer:

-Dominant- [34]3 years ago

4 0

Answer:

1.5

Explanation:

You draw a vertical line going upward from x = -1, stop where your vertical line intercetpts the function (the red line); then draw a horizontal line unitl you reach the y-axis; finally, you can read the y-value on the y-axis. That is the value of the function.

It is pretty close to the midpoint between y = 1 and y = 2, thus a good estimate would be y = 1.5.

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Can i get some help please??? Thanks!!!!

Varvara68 [4.7K]

Answer:

9.6

Step-by-step explanation:

$d = \sqrt{ {8}^{2} + {2}^{2} + {5}^{2} } \\ = \sqrt{64 + 4 + 25} \\ = \sqrt{93} \\ = 9.64365076 \\ = 9.6$

8 0

2 years ago

Translate the given phrase to an expression. Subtract 2/7 from 25/28. Do not simplify

erastova [34]

25/28 - 2/7
it doesn’t need to be solved because it asked for an expression and not an equation, so no equal sign either

6 0

3 years ago

Read 2 more answers

The coordinates of the vertices of quadrilateral DEFG are D(−2, 5) , E(2, 4) , F(0, 0) , and G(−4, 1) .

daser333 [38]

Answer: The correct option is a.Quadrilateral DEFG is a rhombus because opposite sides are parallel and all four sides have the same length.

Explanation:

It is given that coordinates of the vertices of quadrilateral DEFG are D(−2, 5) , E(2, 4) , F(0, 0) , and G(−4, 1) .

The distance formula for two points is given below,

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$DE=\sqrt{(2+2)^2+(4-5)^2}=\sqrt{17}$

$EF=\sqrt{(0-2)^2+(0-4)^2}=\sqrt{20}$

$FG=\sqrt{(-4-0)^2+(1-0)^2}=\sqrt{17}$

$DG=\sqrt{(-4+2)^2+(1-5)^2}=\sqrt{20}$

Slope formula,

$m=\frac{y_2-y_1}{x_2-x_1}$

Slope of DE,

$m_1=\frac{4-5}{2+2}= \frac{-1}{4}$

Slope of EF,

$m_2=\frac{0-4}{0-2}= 2$

Slope of FG,

$m_3=\frac{1-0}{-4-0}= \frac{-1}{4}$

Slope of DG,

$m_4=\frac{1-5}{-4+2}= 2$

The slope of opposite sides are equal, it means the opposite sides are parallel.

All four sides do not have the same length. It means it is not a rhombus.

From the figure it is noticed that the opposite sides are parallel.

Therefore, the correct option is a.Quadrilateral DEFG is a rhombus because opposite sides are parallel and all four sides have the same length.

3 0

3 years ago

Read 2 more answers

Consider the function represented by the equation y-6x-9=0. Which answer shows the equation written in function notation with x

hichkok12 [17]

Y=6X+9 the A is #1
all you need to do is simp the equation

4 0

3 years ago

Read 2 more answers

Find the perimeter of a towel thay measures 2 feet by 3/4 foot

levacccp [35]

A typical towel is the shape of a rectangle.
Rectangles have 2 opposite pairs of congruent (equal) sides.
To find perimeter, find the sums of all the sides.

The measures of the towel's sides are:
2 feet
2 feet
3/4 foot
3/4 foot

Add these together to find the perimeter.

2 + 2 + 0.75 + 0.75 = 5.5

The perimeter of the towel is 5.5 feet.

Hope this helps!
:)

7 0

2 years ago