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1 year ago

PLEASE HELP?

Mathematics

2 answers:

NeTakaya1 year ago

3 0

Answer:

Step-by-step explanation:

change = dollar_amount - spent_amount

change = 50 - 36.85

change = 13.15

boyakko [2]1 year ago

3 0

50-36.85
Change=13.15

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Please help I forgot how to do it :P

Naily [24]

Answer:

25%

Step-by-step explanation:

$115 - $92 = $23 (first blank)

To do the fraction it is the new amount/the original amount

23/92

divide 23 and 92

23/92 = 0.25 (second and third blank)

0.25 x 100% = 25%

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2 years ago

Which answer is correct ?????

julia-pushkina [17]

Answer:

Step-by-step explanation:

The answer is

y = .613x + 4.142

this function has answer of d

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3 years ago

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Consider the following hypothesis test.H0:μ1−μ2=0 Ha:μ1−μ2≠0The following results are for two independent samples taken from the

Julli [10]

Answer:

a) $z =\frac{104-106}{\sqrt{\frac{8.4^2}{80} +\frac{7.6^2}{70}}}= -1.53$

b) $p_v =2*P(z$

c) Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance

Step-by-step explanation:

Information given

$\bar X_{1}= 104$ represent the mean for 1

$\bar X_{2}= 106$ represent the mean for 2

$\sigma_{1}= 8.4$ represent the population standard deviation for 1

$\sigma_{2}= 7.6$ represent the population standard deviation for 2

$n_{1}=80$ sample size for the group 1

$n_{2}=70$ sample size for the group 2

z would represent the statistic

Hypothesis to test

We want to check if the two means for this case are equal or not, the system of hypothesis would be:

H0: $\mu_{1}=\mu_{2}$

H1: $\mu_{1} \neq \mu_{2}$

The statistic would be given by:

$z =\frac{\bar X_1-\bar X_2}{\sqrt{\frac{\sigma^2_1^2}{n_1} +\frac{\sigma^2_2^2}{n_2}}}=$ (1)

Part a

Replacing we got:

$z =\frac{104-106}{\sqrt{\frac{8.4^2}{80} +\frac{7.6^2}{70}}}= -1.53$

Part b

The p value would be given by this probability:

$p_v =2*P(z$

Part c

Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance

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3 years ago

(8c+8)–(c+3)<br> answer-

otez555 [7]

Answer:

7c + 5

Step-by-step explanation:

(8c+8)–(c+3)

8c - c = 7c

8 - + 3 = 5

7c + 5

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3 years ago

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Please Help me Please Please the question and options are in the picture

Lapatulllka [165]

If you eliminate the parentheses, then add mq, you have

... y - p + mq = mx

Then dividing by m gives you the equation for x:

... x = (y - p + mq)/m

3 0

3 years ago