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luda_lava [24]
3 years ago
9

Please help it’s a timed exam

Mathematics
1 answer:
lina2011 [118]3 years ago
7 0

Answer:

Here 86 is answer.

So you better choose 86.

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A high school took a survey to find out the number of activities students participate in during the high school year. Complete t
N76 [4]
144+216=360
720-360=360

choice B is the correct answer
4 0
3 years ago
Which of these cannot represent the lengths of the sides of a right triangle?
Sholpan [36]
<h3>Answer: Choice D. 8m, 9m, 10m</h3>

==================================

Explanation:

If a = 8 and b = 9 are the two legs of a triangle and c = 10 is the hypotenuse, then

a^2 + b^2 = c^2

8^2 + 9^2 = 10^2

64 + 81 = 100

145 = 100

We get a false equation as 145 and 100 are two different values. So the original equation is false when (a,b,c) = (8,9,10)

By the converse of the pythagorean theorem, we have proven that this particular triangle is not a right triangle

-------------

Contrast this with something like choice A where we have a = 3, b = 4, c = 5 leading to

a^2 + b^2 = c^2

3^2 + 4^2 = 5^2

9 + 16 = 25

25 = 25

we get a true equation so a triangle with sides 3,4,5 is a right triangle. Choices B and C follow a similar path.

4 0
3 years ago
Read 2 more answers
Tamara has 12 pencils. There are three red pencils and p other pencils. Write an equation to represent this situation.
Novosadov [1.4K]
The answer is either 3+x=12 or 3x=12
5 0
3 years ago
Read 2 more answers
Plzzzz help asap!!! marking brainiest!!!
Rama09 [41]

Answer:

see below

Step-by-step explanation:

3 ^ ( 6/5)

The base a is 3

The power is 6 which is b

the root is 5 which is c

\sqrt[5]{3^6}

3 0
3 years ago
A rectangular park is 6x + 2 ft long and
Novosadov [1.4K]

Answer: 18x^2 + 48x - 50

Step-by-step explanation: In order to determine the area of the rectangle not covered by the turtle pond, we shall calculate the area of the square pond and subtract it from the area of the rectangle.

The area of the square is given as

Area = L x B, where A and B are of equal measurement (sides of a square)

Area = 8 x 8

Area = 64 ft^2

Next we calculate the area of the rectangle which is given as

Area = L x B, where L = 6X + 2 and W = 3X + 7

Area = (6X + 2) (3X +7)

Area = 18X^2 + 42X + 6X + 14

Area = 18X^2 + 48X + 14

We can now subtract the area of the square from the area of the rectangle

That is Area of the shaded region

= 18X^2 48X + 14 - 64

= 18X^2 + 48X - 50

Therefore, the area of the shaded region = 18X^2 + 48X - 50

5 0
3 years ago
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