If Diana spends 25 more minutes running at the gym how many minutes does she spend lifting weights?

Approximately 13.2% of US drivers are younger than age 25, with 37.7% in the 25-44 age group, and 49.1% in the 45-and-over-categ

Elan Coil [88]

Answer:

could not be the same

Step-by-step explanation:

Given that approximately US drivers are agewise as follows:

<25 13.2

25-45 37.7%

>45 49.1%

Observations are made for a sample of 200 fatal accidents.

Let us create hypotheses as

$H_0: Proportions age wise are the same as for US drivers\\H_a: Proportions are different$

(Two tailed chi square test at 5% significance level)

Age <25 25-45 >45

Expected 13.2 37.7 49.1 100

Observed 42 80 78 200

Expected no 26.4 75.4 98.2 200

Chi square 9.218181818 0.280636605 4.155193483 13.65401191

df = 2

p value = 0.001084

Since p <0.05 we reject null hypothesis

At the 0.05 level, the age distribution of drivers involved in fatal accidents within the state could not be the same as the age distribution of all US drivers as there seems to be significant difference.

5 0

3 years ago

Simplify. 16 + 24 ÷ 4 • 2 - 3. A. -2 B. - 10 C. - 11 D. - 25

Bess [88]

Answer:

25

Step-by-step explanation:

16+24÷4•2-3

16+6•2-3

16+12-3

28-3

25

5 0

3 years ago

Read 2 more answers

Express thos number in scientific notaion 0.0008235

tatuchka [14]

8.235 X 10 -4exponent. The exponent is negative because you moved the decimal to the right instead of left :) hope this helps!

5 0

4 years ago

A vacant city lot is being turned into a neighborhood garden. The neighbors want to fence in a triangular section of the lot and

Dennis_Churaev [7]

Step-by-step explanation:

=>>. Hello mate. (◕ᴗ◕✿)

= Given :-

perimeter of traingle = 58 feet

 let the third side be. "X" feet

  longest side = (2x - 8) feet

 shorter side = (x + 2) feet

Perimeter of traingle = sum of all three sides

=> A/q. ,

( x ) + ( 2x - 8 ) + ( x + 2) = 58. ✓✓✓

 x + 2x - 8 + x + 2 = 58

=>. 4x - 6 = 58

=> 4x = 58 + 6

=> 4x = 64

=>. x = 64/4

 =|. x = 16 feet

length of third side = 16 feet

length of shorter side = 18 feet

length of longest side = 24 feet

 Hope it helps you.......

5 0

3 years ago

Jim ordered a sports drink and three slices of pizza for $8.50. His friend ordered two sports drinks and two slices of pizza for

vagabundo [1.1K]

Answer:

total is 16.50

Step-by-step explanation:

add 8.50+8.00

8 0

3 years ago