2 years ago

How many different isosceles right triangles can be formed from three dots in the grid below? Two examples are shown.

Mathematics

1 answer:

oksano4ka [1.4K]2 years ago

8 0

Answer:

Step-by-step explanation:

The attached figure shows 7 triangles (counting the original 2). Each has degree-4 rotational symmetry about the center of the figure, so there can be 7×4 = 28 triangles.

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A car drives 40 miles on local roads at 20 mph, and 180 miles on the highway at 60 mph, w Your dinner bill is $25 before tax. Th

Anastasy [175]

Answer and Step-by-step explanation:

$Let's~solve~your~problem!$

Formula :

$speed=\frac{distance}{time}$

Solving for time:

$Time~taken~to~cover~40~miles~on~local~ roads~= \frac{40}{20} = 2~hours$

$Time~taken~to~cover~180~miles~on~the~highway~=$ $\frac{180}{60}=3~hours$

$Total~Time~=~5~hours$

Solving for distance:

 $Total~Distance=40 + 180 = 220$ 

Average speed:

 $\frac{Total~distance}{Total~time} = \frac{225}{5} = 44~miles~per~hour$ 

6 0

2 years ago

Mario is making dinner for 9 people.Mario buys 6 containers of soup.Each container is 18 ounces.If everyone gets the same amount

Triss [41]

The equation for this problem would be
(6*18)/9

6*18 is 108
108/9 is 12
Each person gets 12 oz of soup. This is if they mean mario isnt eating

7 0

2 years ago

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A manufacturer inspects 500 personal video players and finds that 296 of them have no defects. the manufacturer sent a shipment

snow_tiger [21]

3351/500 = 6.702
296 times 6.702 is 1983.79
Answer is 1984

7 0

2 years ago

A cylindrical rain barrel has a radius of 2 feet and holds a total of 30 cubic feet of water. How tall is the rain barrel? Use 3

KATRIN_1 [288]

2.39 feet is the answer

5 0

2 years ago

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suppose for everyone cup of rice I add 2 3/4 cups of water. If I add 2 1/2 cups of rice, how much cups of water do I add?

Brrunno [24]

Answer:

6 7/8

Step-by-step explanation:

Since 1 cup of rice is added to 2 3/4 water

We are to determine the Amount of water to be to 2 1/2 cups of rice

Let the unknown number for water be x

So let's solve

1 cup of rice=11/4 water

5/2 cup of rice=x water

Cross multiply

x=5/2×11/4

x=55/8

X=6 7/8

Therefore,6 7/8 water is needed

8 0

2 years ago