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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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Degger [83]

Answer:

first one is 90

second one is 108

Step-by-step explanation:

7 0

3 years ago

Write an expression that is equivalent to

finlep [7]

Answer:

15/2r - 40; Distributive Property

Step-by-step explanation:

You can use the Distributive Property to multiply the 5 across the expression in the parentheses.

5(3/2r - 8)

5 × 3/2r = 15/2r

5 × -8 = -40

Combine.

15/2r - 40

Hope this helps!

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2 years ago

A road is

Airida [17]

9514 1404 393

Answer:

25/42 mi

Step-by-step explanation:

5/6 of 5/7 of a mile is ...

(5/6)(5/7 mi) = 25/42 mi

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3 years ago

410 miles on 20 gallons of gas 75 gallons of gas What is the cars gas mileage

Setler79 [48]

410/20 * 75 = 1537.5 miles.

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2 years ago

Dream Loan Bank offers loans. Carrie borrows $10,500 to help start a business. The loan must be repaid at 4.5% simple interest o

MaRussiya [10]

$~~~~~~ \textit{Simple Interest Earned Amount}\\\\A=P(1+rt)\qquad\begin{cases}A=\textit{accumulated amount}\\P=\textit{original amount given}\dotfill & \$10500\\r=rate\to 4.5\%\to \frac{4.5}{100}\dotfill &0.045\\t=years\dotfill &10\end{cases}\\\\\\A=10500(1+0.045\cdot 10)\implies \boxed{A=15225}$

7 0

2 years ago