A floor plan is drawn using a scale of 3cm/15ft what length is represented by 1 centimeter ?

1. The Brooklyn Nets basketball team played 82 regular-season games last

RSB [31]

Answer:

the answer is 48:34

Step-by-step explanation:

82 - 48 = 32

so 48 : 32

4 0

3 years ago

A randomly selected sample of college basketball players has the following heights in inches. See Attached Excel for Data. Compu

Illusion [34]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The confidence interval is $64.86$

Step-by-step explanation:

From the question we are given the following data

The following heights are

66, 65, 67, 62, 62, 65, 61, 70, 66, 66, 71, 63, 69, 65, 71, 66, 66, 69, 68, 62, 65, 67, 65, 71, 65, 70, 62, 62, 63, 64, 67, 67

The sample size is n =32

The confidence level is $k = 95$ % = 0.95

The mean is evaluated as

$\= x = 66+ 65+ 67+ 62+ 62+ 65+ 61+ 70+ 66+ 66+ 71+63+ 69+ 65+ 71+ 66+ 66+ 69+ 68+ 62+ 65+ 67,+\\65+ 71+ 65+ 70+ 62+ 62+ 63+ 64+ 67+ 67 / 32$

=> $\= x = \frac{2108}{32}$

=> $\= x = 65.875$

The standard deviation is evaluated as

$\sigma = \sqrt{ v}$

Now

$v = ( 66-65.875 )^2+(65-65.875)^2+( 67-65.875)^2+ (62-65.875)^2+ (62-65.875)^2+ (65-65.875)^2+( 61-65.875)^2+ (70-65.875)^2+ (66-65.875)^2+ (66-65.875)^2+ (71+63-65.875)^2+ (69-65.875)^2+ (65-65.875)^2+ (71-65.875)^2+( 66-65.875)^2+ (66-65.875)^2+ (69-65.875)^2+ (68-65.875)^2+ (62-65.875)^2+ (65-65.875)^2+ (67-65.875)^2,+\\(65-65.875)^2+ (71-65.875)^2+ (65-65.875)^2+ (70-65.875)^2+( 62-65.875)^2+( 62-65.875)^2+ (63-65.875)^2+ (64-65.875)^2+ (67-65.875)^2+ (67-65.875)^2 / 32$

=> $v= 8.567329$

=> $\sigma = \sqrt{8.567329}$

=> $\sigma = 2.927$

The level of significance is evaluated as

$\alpha = 1 - 0.95$

$\alpha = 0.05$

The degree of freedom is evaluated as

$Df = n- 1 \equiv Df = 32 -1 = 31$

The critical values for the level of significance is obtained from the z -table as

$t_c = t_{\alpha/2 } , Df = t _{0.05/2}, 31 =\pm 1.96$

The confidence interval is evaluated as

$\mu = \= x \pm t_c * \frac{\sigma }{\sqrt{n} }$

substituting values

$\mu =65.875 \pm 1.96* \frac{2.927}{\sqrt{32} }$

$\mu =65.875 \pm 1.01415$

=> $64.86$

4 0

3 years ago

If the simple interest on $3,000 for 8 years is $1,200, then what is the interest rate?

Usimov [2.4K]

Answer:

i THINK its 18.75% per year

Step-by-step explanation:

r = (1/8)((3,000/1200) - 1 ) = 0.1875

r = 0.1875 * 100 = 18.75

(dont take my word tho, u should double check yourself)

8 0

3 years ago

Find the measures of the angles of an isosceles triangle with a vertex angle of 42 degrees

I am Lyosha [343]

Answer:

69°, 69°, and 42°

Step-by-step explanation:

Isosceles triangles have three angles -- one vertex angle and two base angles.

The base angles have the same measure and the vertex angle has a different measure.

Remember all triangles' interior angles sum to 180°.

If the vertex angle is 42°, then the two base angles combined are:

180° - 42° = 138°

Since the base angles are the same, each base angle is:

138° ÷ 2 = 69°

Therefore the angles in the triangle measure 69°, 69°, and 42°.

3 0

3 years ago

Please help if you can I will mark brainliest when it lets me

Igoryamba

Let c be the hypotenuse in miles.
72 + 92 = c2
49 + 81 = c2
130 = c2
130‾‾‾‾√ = 2‾‾√
130‾‾‾‾√ = c
11.4 ≈ c
The path along Riverside Drive is shorter, about 11.4miles, compared to the path along Cypress and Control Avenues, 16 miles. The difference is about 4.6 miles. The Pythagorean theorem allowed me to calculate the distance along Riverside Drive because the three roads from a right triangle.

8 0

3 years ago