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4 years ago

Help please !!!!!!!!!!!!!!!

Mathematics

2 answers:

vfiekz [6]4 years ago

7 0

8/9-2/5
40/45-18/45
(40-18)/45
22/45 hours or 0.48 hours

nexus9112 [7]4 years ago

5 0

You would do 8/9 - 3/5

convert everything to whatever/45
so 40/45 - 27/45

the answer is 13/45 of an hour.

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Holli's house is located at (−1, 4). She can walk in a straight line to get to Jedd's house. A fast food restaurant is located a

GrogVix [38]

Answer:

The coordinates of Jedd's house is (-5, 0)

Step-by-step explanation:

Given;

Location of Holli's House = (−1, 4)

Location of fast food restaurant = (−3, 2)

To Find:

The coordinate of Jedd's house.

Solution:

If the distance between the two points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is divided by the point (x,y) in the ratio of m : n then

$x=\frac{x_{1}n+x_{2}m}{m + n}$

$y=\frac{y_{1}n+y_{2}m}{m + n}$

Hollis house is located at (-1 , 4)

So, $(x_{1},y_{1}) = (-1 , 4)$

She walks in a straight line to get to Jedds house

The restaurant is located at (-3 , 2) and partitions the way from

(x , y) = (-3 , 2)

The ratio of Hollis house to Jedds house is 1 : 1

(m : n) = 1 : 2

Lets consider that Jedds house is located at $(x_{2},y_{2})$

Then $x_2$ will be

$-3=\frac{-1(1)+x_{2}(1)}{1+1}$

$-3=\frac{-1 +x_{2}}{2}$

$-3 \times 2=-1 +x_{2}$

$-6 = -1 +x_{2}$

$-5 = x_{2}$

Now $y_{2}$ will be

$2=\frac{4(1)+y_{2}(1)}{1+1}$

$2=\frac{4+y_{2}}{2}$

$2 \times 2=4+y_{2}$

$4 = 4+y_{2}$

$4 - 4 = y_{2}$

$y_{2} = 0$

∴ The coordinates of Jedd's house is (-5, 0)

5 0

3 years ago

*WILL MARK BRAINLIEST*

user100 [1]

Answer:

64 + 64sqrt(3)

174.9 cm²

Step-by-step explanation:

AD/2 = 8cos(60) = 4

AD = 8 cm

Height of each triangle = 8sin(60)

= 4sqrt(3)

sqrt: square root

Area = 8² + 4(½ × 8 × 4sqrt(3))

= 64 + 64sqrt(3) cm²

= 174.8512517 cm²

5 0

3 years ago

Lillian is ordering a flower arrangement with roses and carnations. She doesn't want to spend

belka [17]

Answer:

6x+y=36

Step-by-step explanation:

6x - A rose is $6 and you do not know how many she will buy so you would put an "x" after that symbolizing how many she will buy.

y - Carnations cost $1 and the amount purchased is unknown so you would use "y". Because they cost 1 dollar, you will not need to add 1 in front of "y" because "y" by itself is already known as one variable.

36 - The total cost of the arrangement is ultimately going to be $36

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Which set of 3 sides could make a triangle?

scoundrel [369]

Answer: any set of the choices given can make a triangle.

The shapes and sizes will be different, of course. None of the sets given will produce a Right Triangle.

Step-by-step explanation:

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SashulF [63]

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