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Stels [109]
3 years ago
14

Cat had 575 shirts on Monday. On Tuesday she gave away 125 shirts. Which equation represents a one-step equation?

Mathematics
2 answers:
Dmitry_Shevchenko [17]3 years ago
8 0

Answer:

b

Step-by-step explanation:

im not 100% sure sorry

Natasha2012 [34]3 years ago
6 0

Answer:

It's (B) 125 + x = 575

Step-by-step explanation:

It is definetely correct

{First guy is correct}

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97 people are surveyed and 32 of them agree with closing campus for lunch. Is it discrete or continuous
Anton [14]

Discrete

It is a specific value

4 0
3 years ago
Solve the equation: <br> 8y - 3 = бу + 17
balandron [24]

Hey!

------------------------------------------------

Steps To Solve:

8y - 3 = бу + 17

~Subtract 8y to both sides

8y - 3 - 8y = бу + 17 - 8y

~Simplify

-3 = -2y + 17

~Subtract 17 to both sides

-3 - 17 = -2y + 17 - 17

~Simplify

-20 = -2y

~Divide -2 to both sides

-20/-2 = -2y/-2

~Simplify

10 = y

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Hence, the answer is \Large\boxed{\mathsf{y~=~10}}

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Hope This Helped! Good Luck!

3 0
2 years ago
Read 2 more answers
A zoologist is studying four very closely related feline species. She wishes to compare their gestation periods. An observationa
diamong [38]

Answer:

p_v= 0.01

Since the significance level is 0.05 we see that pv so we have enough evidence to reject the null hypothesis. And the best conclusion for this case would be:

b. at least some, but not all, of the gestation periods across all four species are the same

Because is only to identify if AT LEAST one mean is different, NOT to conclude that the all the means are different.

Step-by-step explanation:

Previous concepts

Analysis of variance (ANOVA) "is used to analyze the differences among group means in a sample".  

The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"  

Solution to the problem

The hypothesis for this case are:

Null hypothesis: \mu_{A}=\mu_{B}=\mu_{C}= \mu_D

Alternative hypothesis: Not all the means are equal \mu_{i}\neq \mu_{j}, i,j=A,B,C,D

In order to find the mean square between treatments (MSTR), we need to find first the sum of squares and the degrees of freedom.

If we assume that we have p=4 groups and on each group from j=1,\dots,p we have n_j individuals on each group we can define the following formulas of variation:  

SS_{total}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x)^2  

SS_{between}=SS_{model}=\sum_{j=1}^p n_j (\bar x_{j}-\bar x)^2  

SS_{within}=SS_{error}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x_j)^2  

And we have this property  

SST=SS_{between}+SS_{within}  

And in order to test this hypothesis we need to ue an F statistic and for this case the p value calculated is

p_v= 0.01

Since the significance level is 0.05 we see that pv so we have enough evidence to reject the null hypothesis. And the best conclusion for this case would be:

b. at least some, but not all, of the gestation periods across all four species are the same

Because is only to identify if AT LEAST one mean is different NOT to conclude that the all the means are different.

8 0
3 years ago
Can the sum of two mixed numbers be equal to 2?
igomit [66]
No it cant because a mixed number is over one unless that mixed number is negative
3 0
3 years ago
Read 2 more answers
True or False:
DIA [1.3K]
True. If you're just changing the form, yes. But remember when you change one side of an equation, you must change the other in the same way.
7 0
3 years ago
Read 2 more answers
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