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Anna [14]
3 years ago
10

mark pays a $2 enterance fee and $0.75 every time he plays his favorite video game. If he has $17 , how many video games can he

play?
Mathematics
1 answer:
Murrr4er [49]3 years ago
5 0

Answer:

6 video games

Step-by-step explanation:

divide 17 by 2.75

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A study was designed to compare the attitudes of two groups of nursing students towards computers. Group 1 had previously taken
Leviafan [203]

Answer:

a. H0:μ1≥μ2

Ha:μ1<μ2

b. t=-3.076

c. Rejection region=[tcalculated<−1.717]

Reject H0

Step-by-step explanation:

a)

As the score for group 1 is lower than group 2,

Null hypothesis: H0:μ1≥μ2

Alternative hypothesis: H1:μ1<μ2

b) t test statistic for equal variances

t=(xbar1-xbar2)-(μ1-μ2)/sqrt[{1/n1+1/n2}*{((n1-1)s1²+(n2-1)s2²)/n1+n2-2}

t=63.3-70.2/sqrt[{1/11+1/13}*{((11-1)3.7²+(13-1)6.6²)/11+13-2}

t=-6.9/sqrt[{0.091+0.077}{136.9+522.72/22}]

t=-3.076

c. α=0.05, df=22

t(0.05,22)=-1.717

The rejection region is t calculated<t critical value

t<-1.717

We can see that the calculated value of t-statistic falls in rejection region and so we reject the null hypothesis at 5% significance level.

7 0
3 years ago
How might foreign investment be problematic for a transitioning economy?
KengaRu [80]
The foreign investment is problematic for the economy of a transitioning country because it provides profit to the foreign investors only. They use cheap labor of the developing country. Moreover, the local producers and investors are directly harmed. The major profits are going in the pockets of the other nation's investors. This also causes inflation in the country.
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3 years ago
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Find a cubic function with the given zeros. 6, -3, 5
sergeinik [125]
We would find it by multiplying:
(x -6) * (x +3) * (x -5) =

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2 years ago
How can you use substitution method to solve a system of equations that does not have a variable with a coefficient of 1 or –1?
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You can multiply or divide one equation so that it has a variable with a coefficient opposite of the other equation.
Example:
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B) 4x +2y = 20
Notice that neither equation has a "1" or "-1"
Let's multiply Equation A) by -2
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y= -2

A) 2x + 3*-2 = 6
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3 years ago
original salary. An editing assistant receives an 8% raise, bringing her salary to $42,066. what was her salary before the raise
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