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svetlana [45]
3 years ago
11

Is 6.89 a rational number

Mathematics
2 answers:
PolarNik [594]3 years ago
3 0

Answer:

Yes

Step-by-step explanation:

A number that can be made by dividing two integers

Ksenya-84 [330]3 years ago
3 0

Answer:

6.89 is a rational number

Step-by-step explanation:

6.89 is a rational number because it can be written as a simple fraction which is 6\frac{89}{100}. Additionally, it's not a continuous decimal so it is in fact a rational number

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Broccoli cost $1.50 per pound at the store.How much money does 32 ounces of broccoli cost
balandron [24]
Hope this will help u

8 0
3 years ago
Follow the directions to solve the system of equations by elimination.
omeli [17]

Answer:

X= 1/2 Y= 5

Step-by-step explanation:

8x+7y=39-------------(1)--------×2

4x-14y= -68-----------(2)-------×1

16X + 14Y = 78--------(3)

4X- 14Y = -68----------(4)

Addy equation (4) and (3)

20X = 10

dividing bothsides by 20

20X/20= 10/20

X = 1/2

substitute the value of X into equation (1)

8X+7Y = 39

8(1/2)+7Y= 39

4+7Y = 39

7Y = 39-4

7Y = 35

dividing bothsides 7

7Y= 35/7

Y = 5

5 0
2 years ago
Pls help me ASAP I have other homework to do and I don’t have time for this. It also detects if it’s right or wrong:(
Tems11 [23]
The answer is B. 5 hours.
7 0
3 years ago
Read 2 more answers
Help me fast please!
velikii [3]

Answer:

10^6

Step-by-step explanation:

The reason is because 2x5 = 10 and then you add the exponents when multiplying, making it 10^8

7 0
2 years ago
ind the value of the test statistic z using z equals StartFraction ModifyingAbove p with caret minus p Over StartRoot StartFract
Sergeeva-Olga [200]

Answer:

z=\frac{0.262 -0.25}{\sqrt{\frac{0.25(1-0.25)}{530}}}=0.638  

Step-by-step explanation:

Data given and notation

n=530 represent the random sample taken

X=139 represent the yellow pods in the random sample

\hat p=\frac{139}{530}=0.262 estimated proportion of yellow pods

p_o=0.25 is the value that we want to test

\alpha represent the significance level

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the true proportion is 0.25 or 25%:  

Null hypothesis:p=0.25  

Alternative hypothesis:p \neq 0.25  

When we conduct a proportion test we need to use the z statistic, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.262 -0.25}{\sqrt{\frac{0.25(1-0.25)}{530}}}=0.638  

6 0
3 years ago
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