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Aneli [31]
2 years ago
11

Help what's the answer to this??

Mathematics
2 answers:
True [87]2 years ago
8 0

Answer:

AD

Step-by-step explanation:

Jobisdone [24]2 years ago
4 0
AD knowing how AB are the same and AD are the same too because AD And AB are in the same line and shape, they are not moving spots,, so AD is the answer
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If miley has 200 pencils and Katie has 300 more pencils then how many more does Katie have then miley
Yakvenalex [24]

Answer: 300

Step-by-step explanation: 300+200=500

then 500-200=300

3 0
3 years ago
Read 2 more answers
Many airline companies have begun implementing fees for checked bags. Economic theory predicts that passengers will respond to t
valentinak56 [21]

Answer:

Step-by-step explanation:

a. The hypothesis test is  one tailed_____ test.

(Because we check whether sample weight is greater than hence one tailed or right tailed)

The test statistic follows a __t___ distribution.(Because only sample std deviation s is known)

The value of the test statistic is___Mean difference/Std error =\frac{17.1-16}{\frac{6}{\sqrt{67} } } \\=1.58__

b. df = 66

Reject H0 if t ≥ 1.668

c. The p-value is_____0.059444

d. Using the critical value approach, the null hypothesis is _accepted____, because __t <1.668___ Using the p-value approach, the null hypothesis is__accepted___, because__p value <0.05 our significance level.___ Therefore, you __may___ conclude that the mean weight of the airline's passengers' carry-on items has increased after the implementation of the checked-bag fee.

4 0
2 years ago
The gas mileage for a certain vehicle can be approximated by m=−0.05x2+3.5x−49, where x is the speed of the vehicle in mph. Dete
Whitepunk [10]

Answer:

<h2>14mph</h2>

Step-by-step explanation:

Given the gas mileage for a certain vehicle modeled by the equation m=−0.05x²+3.5x−49 where x is the speed of the vehicle in mph. In order to determine the speed(s) at which the car gets 9 mpg, we will substitute the value of m = 9 into the modeled equation and calculate x as shown;

m = −0.05x²+3.5x−49

when m= 9

9 = −0.05x²+3.5x−49

−0.05x²+3.5x−49 = 9

0.05x²-3.5x+49 = -9

Multiplying through by 100

5x²+350x−4900 = 900

Dividing through by 5;

x²+70x−980 = 180

x²+70x−980 - 180 = 0

x²+70x−1160 = 0

Using the general formula to get x;

a = 1, b = 70, c = -1160

x = -70±√70²-4(1)(-1160)/2

x = -70±√4900+4640)/2

x = -70±(√4900+4640)/2

x = -70±√9540/2

x =  -70±97.7/2

x = -70+97.7/2

x = 27.7/2

x = 13.85mph

x ≈ 14 mph

Hence, the speed(s) at which the car gets 9 mpg to the nearest mph is 14mph

4 0
2 years ago
Can u help me solve this
Nezavi [6.7K]

Answer:

615.44 m²

Step-by-step explanation:

the area of circle = 3.14 x 14² = 3.14×196

= 615.44 m²

6 0
2 years ago
At a basketball game, a team made 57 successful shots. They were a combination of 1- and 2-point
levacccp [35]

Answer:

  • 2-point shots = 41, 1-point shots = 16

Step-by-step explanation:

Let the number of 1-point shots is x and 2-points shots is y.

The system as per question is

  • x + y = 57
  • 1*x + 2*y = 98

Solve it by elimination, subtract the first equation from the second

  • x + 2y - x - y = 98 - 57
  • y = 41

Find the value of x

  • x + 41 = 57
  • x = 16
4 0
2 years ago
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