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3 years ago

Is it possible to construct a triangle with side lengths of 6 cm, 11 cm, and 13 cm? Why or why not?

Mathematics

1 answer:

andriy [413]3 years ago

6 0

Answer:

B. Yes, because 6 + 11 ≠ 13.

Step-by-step explanation: So for this one, you have to add two numbers and if the third number is bigger it is a possible construct but if it less than the third number than it is not a possible construct. So 6+ 11 = 17 (its good so far) 11 + 13 = 24(its good so far) 13 + 6 = 19( its good so far) everything checks out that means B is right. And also it is not D because that is saying 6 + 11 is less than 13 which is wrong. Hope this helps someone :)

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A sports magazine claims that in a certain country, 45% of people like soccer A news channel asked 30 randomly selected people i

LiRa [457]

Answer:

Step-by-step explanation:

Hello!

The parameter of interest is "the population proportion of people that like soccer A news channel"= p

The hypothesis are:

H₀: p = 0.45

H₁: p ≠ 0.45

To study the population proportion you have to use the approximation of the standard normal distribution:

$Z= \frac{p'-p}{\sqrt{\frac{p(1-p)}{n} } }$ ≈ N(0;1)

A sample of n=30 was taken and surveyed, 18 of those answered positively, then the sample proportion is:

p'= 18/30= 0.6

The statistic under the null hypothesis is:

$Z_{H_0}= \frac{0.60-0.45}{\sqrt{\frac{0.45*0.55}{30} } } = 1.6514$

I hope it helps!

6 0

3 years ago

If the pattern in the table continues when will sales for DVD players equal sales for mobile phones?

omeli [17]

Answer:

<em>never </em>because they are continually increasing at the same rate without multiplying and dividing

3 0

2 years ago

If a number a is chosen at random from the set

Paraphin [41]

Answer:

D. 3/19

Step-by-step explanation:

12/1 = 12

12/2 = 6

12/3 = 4

These are the only ones that make the equation true.

There are also only 19 numbers because they need to be less than 20 like the question indicated. Therefore, the answer is D.

7 0

3 years ago

Which of the following statements is true about the sequence? Select all that apply.

oksano4ka [1.4K]

Answer:

f(5)=33f of 5 is equal to 33

Step-by-step explanation:

f(5)=33f of 5 is equal to 33ieieieuejehrdjdjhdhhrhd

7 0

2 years ago

Solve for x. Please help quick, it’s my last question for my test

Sladkaya [172]

Answer:

x = 9

Step-by-step explanation:

84 + (7x + 5) + (180 - (17x-1)) = 180

84 + 7x + 5 + (181 - 17x) = 180

270 + (-10x) = 180

90 = 10x

x = 9

3 0

2 years ago