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Ostrovityanka [42]

3 years ago

14

Need some help with this

1 answer:

bogdanovich [222]3 years ago

3 0

Okay:

For line “l”: y=4
For line “m”: y=-2/1+4
For line “p”: x=-4
For line “n”: y=1x-1

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1. use rounding or compatible numbers to estimate each product or quotient

Lady bird [3.3K]

#1. About 15.
5x3

#2. About 9
26/3=8 2/3

3 0

4 years ago

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The coordinates of the vertices of a rectangle are (−3, 4) , (7, 2) , (6, −3) , and (−4, −1) . What is the perimeter of the rect

ki77a [65]

Answrer

Find out the what is the perimeter of the rectangle .

To prove

Now as shown in the figure.

Name the coordinates as.

A(−3, 4) ,B (7, 2) , C(6, −3) , and D(−4, −1) .

In rectangle opposite sides are equal.

Thus

AB = DC

AD = BC

Formula

$Disatnce\ formula = \sqrt{(x_{2} - x_{1})^{2} +(y_{2} - y_{1})^{2}}$

Now the points A(−3, 4) and B(7, 2)

$AB = \sqrt{(7- (-3))^{2} +(2- 4)^{2}}$

$AB = \sqrt{(10)^{2} +(-2)^{2}}$

$AB = \sqrt{100+4}$

$AB = \sqrt{104}$

$AB = 2\sqrt{26}\units$

Thus

$CD= 2\sqrt{26}\units$

Now the points

A (−3, 4) , D (−4, −1)

$AD = \sqrt{(-4 - (-3))^{2} +(-1- 4)^{2}}$

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

$AD = \sqrt{1 + 25}$

$AD = \sqrt{26}\units$

Thus

$BC = \sqrt{26}\units$

Formula

Perimeter of rectangle = 2 (Length + Breadth)

Here

$Length = 2\sqrt{26}\ units$

$Breadth = \sqrt{26}\ units$

$Perimeter\ of\ rectangle = 2(2\sqrt{26} +\sqrt{26})$

$Perimeter\ of\ rectangle = 2(3\sqrt{26})$

$Perimeter\ of\ rectangle = 6\sqrt{26}$

$\sqrt{26} = 5.1 (Approx)$

$Perimeter\ of\ rectangle = 6\times 5.1$

Perimeter of a rectangle = 30.6 units.

Therefore the perimeter of a rectangle is 30.6 units.

8 0

3 years ago

Help PLEASE I need help on this question ASAP!!!!

loris [4]

Answer:

$8

Step-by-step explanation:

14 - 6 = 8

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4 years ago

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Katie is To Receive 2-1/2 drops of medication every 6hours. How much Medication will she receive in 24 hours?

bezimeni [28]

First, how many periods of 6 hours are in 24 hours? 24 / 6 = 4.
So every 6 hours, Katie needs 2.5 drops.
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3 years ago

Which line represents a proportional relationship?

GREYUIT [131]

The yellow one is the answer

Explaintion: Proportional relationships are relationships between two variables where their ratios are equivalent.

Heres an example of a proportional relationship on a graph:
The top is non proportional and the bottom is a proportional relationship

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