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zavuch27 [327]
2 years ago
7

Need help please I’m begging yeah.

Mathematics
1 answer:
Simora [160]2 years ago
4 0

Answer: The answer is B.

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9. Which of the following could be the side measures of a right triangle?
Lapatulllka [165]

Answer:

  A.  5 ft, 4 ft, 3 ft

Step-by-step explanation:

When you use the Pythagorean theorem with the numbers of the first choice, you find that these could be the sides of a right triangle:

  3² + 4² = 9 + 16 = 25 = 5²

__

You have found the correct answer at this point.

_____

If you want to check, you can examine the other choices:

  C: 6² +10² = 136 ≠ 11²

  B: 2² +4² = 20 ≠ 6²

  D: 5² +10² = 125 ≠ 15²

_____

<em>Comment on 3-4-5 triangle</em>

As you can see from the above, side measures of 3, 4, and 5 will form a right triangle. This is the smallest set of integers that will do so. It is also the ratios of the only set of side lengths in arithmetic progression that will do so.

This latter fact can help you rule out choices B and D in this problem, because each of those has sides in the progression 1 : 2 : 3.

(3, 4, 5) triangles come up often in algebra and geometry problems. This is a useful "Pythagorean triple" to remember.

6 0
3 years ago
Evaluate the function f(x)=x^2+2x+3 at the given values of the independent variable and simplivy
tatyana61 [14]

Answer: i) f(-9)= 66

ii) f(x+1)=x^2+4x+6.

iii) f(-x)=x^2-2x+3

Step-by-step explanation:

The given function : f(x)=x^2+2x+3.

i) For f(-9) , the independent variable is x= -9.

Put x= -9 in given function , we get

f(-9)=(-9)^2+2(-9)+3

=81-18+3=66

Thus ,  f(-9)= 66

ii) For f(x+1) , the independent variable is x= x+1.

Replace x  by x+1 in given function , we get

f(x+1)=(x+1)^2+2(x+1)+3.

=(x^2+1+2x)+2x+2+3  [\because\ (a+b)^2=(a^2+b^2+2ab)]

=x^2+1+2x+2x+5

=x^2+4x+6

Thus ,  f(x+1)=x^2+4x+6.

iii)For f(-x) ,  the independent variable is x=-x.

Replace x  by -x in given function , we get

f(-x)=(-x)^2+2(-x)+3.

=x^2-2x+3  [∵ (+)(-)=(-)]

Thus , f(-x)=x^2-2x+3

8 0
3 years ago
What is the theoretical probability of rolling two consecutive numbers<br>when rolling two dice?​
Art [367]

Answer:

2.7%

Step-by-step explanation:

The probability of rolling the number once is \frac{1}{6}, and the probability of it happening again is \frac{1}{6}, so multiply and get \frac{1}{36}, which is approximately 2.7%

4 0
3 years ago
Employees from a local store
miv72 [106K]
Forks :
20 x 12 = 240

Spoons:
10 x 12 = 120

Knives :
5 x 10 = 50

Paper plates :
175

Total :
175 + 50 + 120 + 240 = 585

585 picnic items were donated
8 0
2 years ago
Evaluate the expression
Ivenika [448]

Answer:

??

Step-by-step explanation:

8 0
3 years ago
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