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3 years ago

Please help, This is due soon!!! I’ll mark brainiest or what ever it is called

Mathematics

2 answers:

umka2103 [35]3 years ago

3 0

Answer:

c and d

Step-by-step explanation:

using the two angles in the triangle, 1 and 2, it can be 180- the sum of angles 1 and 2, which is c. using angle 4, it can also be 180 - the equation for angle 4

GuDViN [60]3 years ago

3 0

Answer:

C and D

Step-by-step explanation:

Choice C says that if you take 180 minus the sum of angles 1 and 2, you will find the measure of angle 3. Choice D says that is you take 180 minus angle 4, you will find the measure of angle 3 due to both angles forming a straight angle.

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Tamika builds a wooden skateboard ramp. The ramp measures 63 centimeters, and the length of its horizontal base is 60 centimeter

Ulleksa [173]

Answer:

Answer is 19.2

Step-by-step explanation:

60x60= 3600 63x63= 3969

3969

- 3600 = 369 square root of the 369= is 19.2

7 0

3 years ago

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Can someone help me here please!?

Maksim231197 [3]

The answer is A p = 1.6m

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3 years ago

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Andrew bought 7 bundles of drawing sheets that each cost the same amount of money. The tax on his purchase was $1. He spent a to

Annette [7]

Solve the equation 7x-1=15 where x is the cost of each bundle of drawing sheets.

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6 0

3 years ago

In a one-way ANOVA, what is the difference between the among-groups variance MSA and the within-groups variance MSW?

LuckyWell [14K]

Answer:

$MSR=MSA=\frac{SSR}{k-1}$

And $MSE=MSW=\frac{SSE}{N-k}$

The difference is that MSA takes incount the variation between the groups and the grand mean, and the MSW takes in count the variation within groups respect to the mean of each group .

Step-by-step explanation:

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"

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

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

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

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

And we have this property

$SST=SS_{between}+SS_{within}=6750+8000=14750$

The degrees of freedom for the numerator on this case is given by $df_{num}=k-1$ where k represent the number of groups.

The degrees of freedom for the denominator on this case is given by $df_{den}=df_{between}=N-k$ .

And the total degrees of freedom would be $df=N-1$

We can find the $MSR=MSA=\frac{SSR}{k-1}$

And $MSE=MSW=\frac{SSE}{N-k}$

The difference is that MSA takes incount the variation between the groups and the grand mean, and the MSW takes in count the variation within groups respect to the mean of each group .

And the we can find the F statistic $F=\frac{MSR}{MSE}=$

8 0

3 years ago

WORTH 25 POINTS!!!!!!!!!!!!!!!

Tpy6a [65]

I'll help you later ok sorry tho

7 0

3 years ago