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Katen [24]
3 years ago
12

I need some help with this one

Mathematics
2 answers:
Mrac [35]3 years ago
8 0

Answer:

300+90+9

-45=0+40+5

Step-by-step explanation:

399-45=354

zhenek [66]3 years ago
6 0
Sheeesh the prodigy tho.

300 + 90

-45

300 + 50 + 4 = 354

My first answer ever I think I’m right don’t hate me if I’m wrong :D
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mylen [45]

Answer:

The answer to number one is 3 1/2, the answer to number two is 3 1/3, the answer to number three is 1 1/4, the answer to number four is 1 3/5, the answer to number five is 3 1/5, the answer to number six is 19/4, the answer to number seven is 27/5, the answer to number eight is 35/3, the answer to number nine is 24/7, and the answer to number ten is 13/6.

Step-by-step explanation:

To change an improper fraction into a mixed number, you hate to divide the numerator by the denominator. For example, if the improper fraction was 10/5, you would get 2 because 5 goes into 10 two times. If the improper fraction was 8/5, you would do the same thing and get 1 3/5 because 5 goes into 8 once, and since 8 minus 5 is 3, you get 3 over 5.

To change a mixed number into an improper fraction, you have to multiply the denominator my the whole number, and then take that number and add it by the numerator. For example, if the mixed number was 8 2/3, the improper fraction would be 26/3 because 3 times 8 is 24, and 24 plus 2 is 26.

I hope this helps you have a wonderful day :D

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3 years ago
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Camila drove 30 miles per hour to get to her math class. what is the dependent quantity
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Equations with Independent and Dependent Variables
 Common Core Standard: Use variables to represent two quantities in a real-world problem that change in relationship to one another; write an equation to express one quantity, thought of as the dependent variable, in terms of the other quantity, thought of as the independent variable. Analyze the relationship between the dependent and independent variables using graphs and tables, and relate these to the equation.
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3 years ago
A horticulturist working for a large plant nursery is conducting experiments on the growth rate of a new shrub. Based on previou
sergejj [24]

Answer:

t=\frac{2.9-3}{\frac{0.3}{\sqrt{50}}}=-2.357    

df=n-1=50-1=49  

p_v =P(t_{(49)}  

Since the p value is less than the significance level of 0.1 we have enough evidence to reject the null hypothesis and we can conclude that the true growth rate is significantly less than 3 cm per week

Step-by-step explanation:

Information given

\bar X=2.90 represent the sample mean for the growth

s=0.30 represent the sample standard deviation

n=50 sample size  

\mu_o =3 represent the value to check

\alpha=0.1 represent the significance level

t would represent the statistic

p_v represent the p value for the test

System of hypothesis

We want to verify if the true mean for the growth us less than 3cm per week, the system of hypothesis are:  

Null hypothesis:\mu \geq 3  

Alternative hypothesis:\mu < 3  

We don't know the population deviation so we can use the t statistic:

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

Replacing the info given we got:

t=\frac{2.9-3}{\frac{0.3}{\sqrt{50}}}=-2.357    

The degrees of freedom are given by:

df=n-1=50-1=49  

The p value for this case would be given by:

p_v =P(t_{(49)}  

Since the p value is less than the significance level of 0.1 we have enough evidence to reject the null hypothesis and we can conclude that the true growth rate is significantly less than 3 cm per week

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nasty-shy [4]

Answer:

132cm ^ 2

Step-by-step explanation:

First solve the top rectangle, 4x7 = 28cm

then solve the bottom rectangle, 8x7 = 56cm

then solve the triangle, we know the entire bottom is 19cm, and 7 is subtracted, thereforth leavin 12, since there is 2 triangles its a base of 6, with a height of 8 making 48cm (and since there is 2 triangles no need to divide by 2)

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-- Gage Millar, Algebra 2 Tutor

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