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3241004551 [841]
3 years ago
9

Use this information to answer the following 7 questions.

Mathematics
1 answer:
Phantasy [73]3 years ago
8 0

Answer:

1) b. an experimental study

2) a. μ1=μ2=μ3

3) a. MSE

4) MSTR =85.735

5) value of the F-statistics =7.472

6) b. 0.004

7) a. We reject the null hypothesis

8) b. Yes

Step-by-step explanation:

See the attached image

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A sea turtle swims at a speed of 27 kilometers per hour. A girl swims 14 decimeters per second. 1 m = 10 dm 1000 m = 1 km How mu
insens350 [35]
The sea turtle's speed is
v_{t} = (27 \, \frac{km}{h} )*(1000 \, \frac{m}{km} )*( \frac{1}{60} \, \frac{h}{min} ) = 450 \, \frac{m}{min}

The girl's speed is
v_{g} = (14 \, \frac{dm}{s} )*( \frac{1}{10} \, \frac{m}{dm} )*(60 \, \frac{s}{min} ) = 84 \, \frac{m}{min}

The ratio of the turtle's speed to that of the girl is
\frac{v_{t}}{v_{g}} = \frac{450}{84} =5.357

Answer: 5.36 faster  (nearest hundredth)


4 0
4 years ago
Read 2 more answers
A new electronics company, HOTWIRED, is working on two new docking stations to release this
inna [77]

Answer:

The objective function is P(x,y) = 55x + 95y

P(600, 1400) is $166000

P(600, 1700) is $194500

P(1500, 1700) is $244000

P(1200, 800) is $142000

P(1500, 800) is $158500

They need to sell 1500 of the basic models  and 1700 of the advanced models to make the maximum profit

Step-by-step explanation:

Let us solve the question

∵ x denotes the number of  basic models

∵ y is the number of advanced models

∵ They will make $55 on each basic model

∵ They will make $95 on each advanced model

→ The profit is the total amount of money-making on them

∴ Profit = 55(x) + 95(y)

∴ Profit = 55x + 95y

∴ The objective function is P(x,y) = 55x + 95y

Let us test the vertices on the objective function

∵ The vertices are (600, 1400), (600, 1700), (1500, 1700), (1200, 800),

   and (1500, 800)

→ substitute each vertex in the objective function

∵ x = 600 and y = 1400

∴ P(600, 1400) = 55(600) + 95(1400) = 166000

∴ P(600, 1400) = $166000

∵ x = 600 and y = 1700

∴ P(600, 1700) = 55(600) + 95(1700) = 194500

∴ P(600, 1700) = $194500

∵ x = 1500 and y = 1700

∴ P(1500, 1700) = 55(1500) + 95(1700) = 244000

∴ P(1500, 1700) = $244000

∵ x = 1200 and y = 800

∴ P(1200, 800) = 55(1200) + 95(800) = 142000

∴ P(1200, 800) = $142000

∵ x = 1500 and y = 800

∴ P(1500, 800) = 55(1500) + 95(800) = 158500

∴ P(1500, 800) = $158500

∵ The greatest profit is $244000

→ That means the maximum profit will be with vertex (1500, 1700)

∴ They need to sell 1500 of the basic models  and 1700 of the

   advanced models to make the maximum profit

3 0
4 years ago
A local bake shop sells cookies and cakes.On monday , sean bought 3 cookies and 5 cakes and spent $78.75 on tuesday , sean bough
Bond [772]

Answer:

The price of one cookie is $1.25 and the price of one cake is $15.

Step-by-step explanation:

Let $x be the price of one cookie and $y be the price of one cake.

1. On Monday, Sean bought 3 cookies and 5 cakes, then he spent $(3x+5y) and this is $78.75. Thus,

3x+5y=78.75.

2. On Tuesday, Sean bought 8 cookies and 2 cakes, then he spent $(8x+2y) and this is $40. Thus,

8x+2y=40.

3. Solve the system of two equations:

\left\{\begin{array}{l}3x+5y=78.75\\8x+2y=40\end{array}\right.

Multiply the first equation by 2 and the second equation by 5 and subtract them:

2(3x+5y)-5(8x+2y)=2\cdot 78.75-5\cdot 40,\\ \\6x+10y-40x-10y=157.5-200,\\ \\-34x=-42.5,\\ \\x=\$1.25.

Then

8\cdot 1.25+2y=40,\\ \\2y=40-10,\\ \\y=\$15.

8 0
3 years ago
Can someone please help me?
Tatiana [17]
It can be solved by factoring or taking the root of both sides.

x= 2 radical 3. and -2 radical 3
7 0
3 years ago
The sides of a regular polygon are always congruent (Fto each other.<br> True<br> False
BaLLatris [955]

Answer:

Polygons are congruent

Step-by-step explanation:

Polygons are congruent when they have the same number of sides, and all corresponding sides and interior angles are congruent

6 0
3 years ago
Read 2 more answers
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