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3 years ago

Rewrite as a simplified fraction. 3.4888888888...... =?

Mathematics

1 answer:

artcher [175]3 years ago

3 0

Answer:

3 22/45

Step-by-step explanation:

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a ruby throated hummingbird beats its wing 159 times in 3 seconds.how many times does the ruby throated humming beat its wings p

NikAS [45]

159 divided by 3 will give you the answer of 53.

5 0

3 years ago

Read 2 more answers

Help pls FAST !! Plsss

Lorico [155]

Answer:

$\sqrt{17}$ , 4.23 , 9/2

Step-by-step explanation:

$\sqrt{17} = 4.1231\\$

9/2 = 4.5

4.23

7 0

2 years ago

2. Given a quadrilateral with vertices (−1, 3), (1, 5), (5, 1), and (3,−1):

zlopas [31]

<h2>Explanation:</h2>

In every rectangle, the two diagonals have the same length. If a quadrilateral's diagonals have the same length, that doesn't mean it has to be a rectangle, but if a parallelogram's diagonals have the same length, then it's definitely a rectangle.

So first of all, let's prove this is a parallelogram. The basic definition of a parallelogram is that it is a quadrilateral where both pairs of opposite sides are parallel.

So let's name the vertices as:

$A(-1,3) \\ \\ B(1,5) \\ \\ C(5,1) \\ \\ D(3,-1)$

First pair of opposite sides:

<u>Slope:</u>

$\text{For AB}: \\ \\ m=\frac{5-3}{1-(-1)}=1 \\ \\ \\ \text{For CD}: \\ \\ m=\frac{1-(-1)}{5-3}=1 \\ \\ \\ \text{So AB and CD are parallel}$

Second pair of opposite sides:

<u>Slope:</u>

$\text{For BC}: \\ \\ m=\frac{1-5}{5-1}=-1 \\ \\ \\ \text{For AD}: \\ \\ m=\frac{-1-3}{3-(-1)}=-1 \\ \\ \\ \text{So BC and AD are parallel}$

So in fact this is a parallelogram. The other thing we need to prove is that the diagonals measure the same. Using distance formula:

$d=\sqrt{(y_{2}-y_{1})^2+(x_{2}-x_{1})^2} \\ \\ \\ Diagonal \ BD: \\ \\ d=\sqrt{(5-(-1))^2+(1-3)^2}=2\sqrt{10} \\ \\ \\ Diagonal \ AC: \\ \\ d=\sqrt{(3-1)^2+(-5-1)^2}=2\sqrt{10} \\ \\ \\$

So the diagonals measure the same, therefore this is a rectangle.

5 0

3 years ago

Mr. Tyler wants to rent a car for n days. The car rental company charges a fixed fee of $120 and an extra $18 for each day of re

11111nata11111 [884]

The cost of renting the car every day is going to be y=18n+120 so if you plug 8 into n you get 264

8 0

3 years ago

Item 7

Katyanochek1 [597]

i am sorry i was gonna anwer but i keep getting it wrong mys elf

4 0

3 years ago