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3 years ago

Is 6,7,13 a right triangle

Mathematics

1 answer:

Scilla [17]3 years ago

7 0

Answer:

Step-by-step explanation:

For a right triangle, according to the Pythagorean Theorem, the 2 sides squared must equal the hypotenuse squared. ( $a^{2} +b^{2} =c^{2}$ )

The hypotenuse is the longest side so $13^{2}=169$

$6^{2}=36\\7^{2}=49$

36 + 49 does not equal 169

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A nearby pond has 5 frogs, and the population doubles every year. The inequality 5(2)^t>75, where t is the number of years, m

My name is Ann [436]

Answer:

4 and 7.5 years will be greater than 75

Step-by-step explanation:

4 year 10,20,40,80

7.5 years 10,20,40,80,160,320,640,960

5 0

3 years ago

Given the function h(n)= n squared - 1, find h(-4).

Tema [17]

H(-4)= (-4)^2-1
(-4)^2=16
16-1=15

h(-4)=15

4 0

3 years ago

-4(x-5 ) - 25 = -5 x =?*

patriot [66]

Answer:

x=0

Step-by-step explanation:

First distribute -4 to x and -5 and get -4x+20-25=-5

Then you combine like terms and get -4x-5=-5

Then add 5 to both sides and get -4x=0

Then divide both sides by -4 and get x=0

7 0

3 years ago

The width of a rectangular is 4 feet, and the diagonal length of the rectangle is 13 feet. Which measurement is closest to the l

Montano1993 [528]

Answer:

It would be Choice C, 12.4 feet.

Step-by-step explanation:

By using Pythagoras Theorem a² + b² = c²

c²- b²= a²

13²-4²=

169 - 16 = √153

√153 = 12.3693168769

12.3693168769 ≅ 12.4

6 0

3 years ago

Gardener has 780 plants. He wants to plant there in such a way that the number of rows and the numbers of columns remains same.

AleksAgata [21]

Answer:

<em>Gardener will need 4 more plants.</em>

Step-by-step explanation:

Gardener has 780 plants and wants to plant them in an array of n rows and n columns.

The number of plants needed to do that is:

$n*n=n^2$

He actually has 780 plants, thus it should occur:

$n^2=780$

Taking the square root:

n=27.9

Since n needs to be an integer, we round up n to get

n=28

But $28^2=784$ , 4 more than the actual number of plants, thus:

Gardener will need 4 more plants.

Note: There are other possible results for n. If we set n=29, then $n^2=841$ and Gardener would need 841-780=61 more plants, but the question asked for the minimum number of plants.

5 0

3 years ago