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nirvana33 [79]
3 years ago
13

My daughter is 2nd grade I don't know how to explain draw and write to explain how these two problems are different 35-15=20 and

43-26=17

Mathematics
2 answers:
const2013 [10]3 years ago
8 0
35-15=20
43-26=17
20-17=3


 please make my answer the best
IRINA_888 [86]3 years ago
3 0
Hope this helps.
In the second problem, because 3 is not large enough to subtract 6 from, change 4 to 3 and add 1 before 3 to get 13-6.

God bless!!! xx

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devlian [24]

Answer:

Its D please mark Brainliest.

Step-by-step explanation:


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In the situation, simple interest is calculated yearly. How much interest was earned? Drag and drop the answer into the box. Pri
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I = PRT
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T = 4
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A researcher tests five individuals who have seen paid political ads about a particular issue. These individuals take a multiple
devlian [24]

Answer:

t=\frac{46-40}{\frac{5.148}{\sqrt{5}}}=2.606    

The degrees of freedom are given by:

df=n-1=5-1=4  

The p value wuld be given by:

p_v =2*P(t_{(4)}>2.606)=0.060  

For this case the p value is higher than the significance level so then we can conclude that the true mean is not significantly different from 40

The distribution with the critical values are in the figure attached

Step-by-step explanation:

Information given

48, 41, 40, 51, and 50

The sample mean and deviation can be calculated with these formulas:

\bar X= \frac{\sum_{i=1}^n X_i}{n}

s =\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

\bar X=46 represent the mean height for the sample  

s=5.148 represent the sample standard deviation

n=5 sample size  

\mu_o =40 represent the value that we want to test

\alpha=0.05 represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test

Hypothesis to test

We want to test if the true mean for this case is equal to 40, the system of hypothesis would be:  

Null hypothesis:\mu = 40  

Alternative hypothesis:\mu \neq 40  

The statistic is given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Replacing we got:

t=\frac{46-40}{\frac{5.148}{\sqrt{5}}}=2.606    

The degrees of freedom are given by:

df=n-1=5-1=4  

The p value wuld be given by:

p_v =2*P(t_{(4)}>2.606)=0.060  

For this case the p value is higher than the significance level so then we can conclude that the true mean is not significantly different from 40

The distribution with the critical values are in the figure attached

6 0
3 years ago
At Costco, you can buy a ten-pound bag of Halloween candy for $23.99. Kroger is running a special on the same brand of candy: bu
kirill [66]

Answer:

A. 2.40

B. 4

C. Costco is the better deal

Step-by-step explanation:

23.99/10= 2.399 (rounded to 2.40)

10/2.5 lbs (16 oz = 1 lb) = 4

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Have students write an explanation of how to find the slope of a line given the points A(1, 5) and B(−7, 8), also give me the an
Grace [21]

Answer:

3/-8

Step-by-step explanation:

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substitute in: 8-5/-7-1= 3/-8

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