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3 years ago

Explain your answer !! Have a nice day Will give braisnlt

Mathematics

1 answer:

Stels [109]3 years ago

6 0

The answer is B because in total you there are 15 bicycles and tricycles so b +t =15
Bicycles have 2 wheels and tricycles have 3 wheels so 2b + 3t = 45

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The measurement of Angle N is 64°. Which angle measurement is complementary to Angle N?

Verizon [17]

Answer:

116°

Step-by-step explanation:

complementary angles add to 180 so

180-64= 116

5 0

3 years ago

The standard deviation of pulse rates of adult males is more than 11 bpm. For the random sample of 153 adult males the pulse rat

Alenkasestr [34]

Answer: 160.4040

Step-by-step explanation:

Here , the claim is "The standard deviation of pulse rates of adult males is more than 11 bpm." , i.e. $\sigma>11$

We use Chi-square test statistic for the test statistic to test the standard deviations :

$\chi^2=\dfrac{(n-1)s^2}{\sigma^2}$ , where s= sample standard deviation , $\sigma$ = population standard deviations and n = sample size.

As per given , n=153 , s= 11.3

Then, Required test statistic will be :

$\chi^2=\dfrac{(153-1)(11.3)^2}{11^2}=\dfrac{152\times127.69}{121}\approx160.4040$

Hence, the value of the test statistic. = 160.4040

3 0

3 years ago

Homework #74

ollegr [7]

784 divide by 7 is 112 so answer 112

7 0

3 years ago

0, 7, 14, 21, next three terms

Nat2105 [25]

Answer:

28, 35, 42

Step-by-step explanation:

Adding by 7 every time. Also this is on the seven times table.

5 0

3 years ago

wanda works as an electrician with the current electric company. she earns $17.25 per hour with time and a half after 40 hours.

OLEGan [10]

1.5(17.25) = 25.88 --- this is ur overtime pay per hr

17.25(40) + 25.88(4) = 690 + 103.52 = 793.52...nice weekly pay :)

8 0

4 years ago