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3 years ago

Find a counterexample: Two sides of a

Mathematics

1 answer:

Shkiper50 [21]3 years ago

6 0

Answer: Any isosceles triangle is a counter example. More specifically, a triangle with sides 7, 7 and 3

When forming your triangle, make sure you apply the triangle inequality theorem. This is the idea where adding any two sides leads to a result larger than the third side. So we have

7+7 = 14 which is larger than 3

7+3 = 10 which is larger than 7

By definition, an isosceles triangle has two congruent sides. Some books say "at least 2 congruent sides", but I'll go with the first definition. If you want all three sides to be congruent, then you'd go for the term "equilateral".

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The price of a four-star dinner was $100 two decades ago. A report says that a dinner is 250% of what it was 20 years ago, how m

Nina [5.8K]

The dinner will cost $250 today.

Explanation

The price of a four-star dinner was $100 two decades ago and now the cost of the dinner is 250% of what it was 20 years ago.

So for finding the current cost, we will find 250% of $100 .

First we need to make 250% as decimal form after dividing it by 100. So....

250% = $\frac{250}{100}= 2.50$

Now we will multiply this 2.50 with $100 for getting the current cost of the dinner.

Thus, the current cost $=(100* 2.50)dollar = 250 dollar$

7 0

3 years ago

For the equation 8x + 2y = 16 What is the slope? What is the y-intercept (write as an ordered pair)? What is the x-intercept (wr

LiRa [457]

Answer:

y= -4x+16, (4,0), (0, 8)

Step-by-step explanation:

Let us rewrite the equation in slope intercept form, y=mx+b, where m is the slope:

2y= -8x+16

y= -4x+16

Therefore, -4 is the slope.

The x intercept can be found if we substitute 0 into the y:

0= -4x+16

4x=16

x=4

(4,0)

The y intercept can be found if we substitute 0 into the x:

2y= -8*0 +16

2y=0+16

2y=16

y=8

(0,8)

I hope this helps! :)

6 0

3 years ago

Read 2 more answers

Use your formula to find the area of a triangle with a base of 8 inches and a height of 3 1/2 inches.

MrRa [10]

Answer:

28 inches

Step-by-step explanation:

area = base times height (a = b x h)

8 times 3.5 (3 1/2) = 28 inches

Also, if you could label this brainliest that would be a great help!

Thanks xx

-Dante

6 0

2 years ago

. John Gray bought a basic car for $8,250.00, with options that cost $324.00. There's a 6% sales tax in

bogdanovich [222]

Cost of basic car = $8250
Optional cost = $324
Total cost of basic car and optional items for John= (8250 + 324) dollars
      = 8574 dollars
Then
Percentage of sales tax = 6%
Amount of sales tax = 8574 * (6/100) dollars
   = 514.44 dollars
License and registration fee combined = $50
Then total cost of John in regards to buying the car = 8574 + 514.44 + 50
      = 9138.44 dollars
So option "C" is the correct option in regards to the question given.

3 0

4 years ago

Which expression use the associative property and make it easier to evaluate 6 (3/2 x 1/5)

k0ka [10]

Answer:

Step-by-step explanation:

Associative property moves the parentheses, but the numbers stay in the same order.

3 0

3 years ago