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umka2103 [35]
3 years ago
8

5 + (-3) what is the answer

Mathematics
2 answers:
Fynjy0 [20]3 years ago
8 0

5 + (-3) = 2. This is because adding a negative to a positive is the same as subtracting two positives.

prohojiy [21]3 years ago
6 0

5-3 is 2 the answer is 2

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A pack of 13 candles is priced at $78. At that rate, how much would only 10 candles cost?
Sphinxa [80]

Answer:

78/13 = 6 (is the price of one candle)

6(price) x 10(candles) =60 is the answer

Hope it helped

8 0
3 years ago
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
What is a joint relative frequency
Iteru [2.4K]
[Rewritten and Fixed]

Joint relative frequency is the ratio of the frequency in a certain category and the total number of data points in that category.

5 0
3 years ago
Please help. #10 &amp; #11. Thanks
zmey [24]
11. h(3)= 137 is the answer to the equation.
8 0
2 years ago
Eleven is 20% of _______?
strojnjashka [21]
55
You Times 20% by 5 to get fully 100%
So if 11 is 20%
You have to Times 11 by 5 to get fully 100%
11 x 5 is 55.
The answer is 55
5 0
3 years ago
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