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valkas [14]
3 years ago
11

How many unique lines of reflection are in an equilateral triangle?

Mathematics
1 answer:
LenaWriter [7]3 years ago
7 0
The answer to this is letter A
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A Japanese bullet train travels 558 miles per 3 hours A. What is the rate B. How far does the train travel in 1 hour WHO EVER A
Delicious77 [7]

Answer:

Step-by-step explanation:

Remark

The rate is going to be the same as the distance travelled in 1 hour. The units will be different.

Formula

d = r * t

Givens

d = 558 miles

t = 3 hours

Problem A

r = d / t

r = 558/ 3 = 186 miles / hr

Problem B

Givens

r = 186 miles / hour

t = 1 hour

d = ?

Solution

d = 186 mi/hr * 1 hr

d = 186 miles

<u>Note</u>

This looks really trivial, but it's not. You have to learn to see the difference between a number and its units. It's not very often that the numbers will be the same, but if the units differ, then it is an entirely different question.

7 0
3 years ago
Help please ............
Crank

Answer: it’s between A or C. Most likely to be C

6 0
2 years ago
Read 2 more answers
Doheney bake sale 1 1/2 dozen cookies were sold in 1/3 hour what is the unit rate for the dozens of cookies sold per hour
netineya [11]
1/3 hour = 20 minutes


1 1/2 dozen = 12 + 6 = 18 cookies

18 cookies x 3 (3 sets of 20 minutes = 1 hour) = 54 cookies per hour
5 0
3 years ago
Read 2 more answers
What is the name of the shapes A,B,D
artcher [175]

Answer:

i believe the bottom is a <em>irregular quadrilateral </em>and the first one is a <em>parallelogram </em>

Step-by-step explanation:

4 0
2 years ago
The length of a rectangle is 4 centimeters more than its width. if the ratio of the length to width is seven to five, find the d
Marina86 [1]
L = 4 + w
l/w = 7/5
l = 7w/5

7w/5 = 5 + w
7w = 25 + 5w
2w = 25
w = 12.5

l = 4 + 12.5
l = 16.5

the dimensions are 16.5 x 12.5 cm
6 0
3 years ago
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