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3 years ago

11

What's the answer of the this-48.3÷(-7)

1 answer:

goblinko [34]3 years ago

4 0

the answer is 6.9.

When you divide a negative by a negative it is a positive

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A sphere has a radius of 5.3 ft. What is the volume of the sphere to the nearest tenth? use 3.14 for pi. Question 3 options:

Alenkinab [10]

Your answer would be c
623.3 ft^3

5 0

2 years ago

Add the two expressions.

Ierofanga [76]

-3.2b + 9
by adding like terms together.

3 0

2 years ago

Read 2 more answers

The distribution of the test statistic for analysis of variance is the F-distribution. true or false

lubasha [3.4K]

Answer:

True. See explanation below

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"

If we assume that we have $k$ groups and on each group from $j=1,\dots,k$ we have $k$ 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

$SST=SS_{between}+SS_{within}$

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 $df=N-1$

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

8 0

3 years ago

a town has a population of 16000 and grows at 2% every year. to the nearest tenth of a year, how long will it be until the popu

miss Akunina [59]

20100 = 16000 * (1.02)^ t

20100/16000 = 1.02^t

1.25625 = 1.02^t

log 1.25625 = t * log 1.02

t = log 1.25625 / log 1.02
= 11.5

8 0

2 years ago

Read 2 more answers

Michelle earns 3% comission for selling furniture. This week, she sold $2200 in furniture. She also made $250 in her hourly wage

Dominik [7]

Answer:

$2266

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, 3% of $2200 is $66

$2200+$66=$2266

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Also I would so so so appreciate a brainliest, I only need one more to advance!

3 0

2 years ago