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2 years ago

2.5 simplfied into a fraction i need it for my math test tomorow!

Mathematics

2 answers:

mars1129 [50]2 years ago

8 0

Answer:

2 1/2

Step-by-step explanation:

Finger [1]2 years ago

5 0

Answer:

The answer is $\frac{5}{2}$

Step-by-step explanation:

2.5 = $\frac{25}{10}$

to reduce it we divide it by 5

The answer is $\frac{5}{2}$

Hope this helps you! :)

Could you please mark this as brainiest?

It would help me a lot!

Thank you!

Good Luck on your math test!

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Help me im dangered plzzzzzzzzzzzzzzzzzzzz

ANTONII [103]

Answer:

Step-by-step explanation:

Hi!

An exponent is the same thing as just multiplying the expression by itself the number of times the exponent says. So we need to multiply 1/3 by itself three times.

1/3 * 1/3 * 1/3 = 1/27

5 0

3 years ago

Read 2 more answers

Solve: 17.2 = 8.9 + c c =

vaieri [72.5K]

Answer:

The square root of 8.3, and -8.3

Step-by-step explanation:

4 0

2 years ago

Write an equation in standard form of the line that passes through the point (9, 2) with a slope of 1/3

Elan Coil [88]

Answer:

y=1/3x-1

Step-by-step explanation:

You want to find the equation for a line that passes through the point (9,2) and has a slope of 1/3.

First of all, remember what the equation of a line is:

y = mx+b

Where:

m is the slope, and

b is the y-intercept

To start, you know what m is; it's just the slope, which you said was 1/3. So you can right away fill in the equation for a line somewhat to read:

y=1/3x+b.

Now, what about b, the y-intercept?

To find b, think about what your (x,y) point means:

(9,2). When x of the line is 9, y of the line must be 2.

Because you said the line passes through this point, right?

Now, look at our line's equation so far: . b is what we want, the 1/3 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the the point (9,2).

So, why not plug in for x the number 9 and for y the number 2? This will allow us to solve for b for the particular line that passes through the point you gave!.

(9,2). y=mx+b or 2=1/3 × 9+b, or solving for b: b=2-(1/3)(9). b=-1.

The equation of the line that passes through the point (9,2) with a slope of 1/3

y=1/3x-1

4 0

2 years ago

Whats 6 and 1 fifth times 2 and three thirds

Shtirlitz [24]

6 1/5 x 2 3/3

31/3 x 3

93/3

8 0

2 years ago

Read 2 more answers

A researcher reports an F-ratio with df = 2, 18 from an independent-measures research study. Based on the df values, how many tr

Romashka-Z-Leto [24]

Answer:

b. 3 treatments and 21 subjectcs

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"

On this case we have 4 degrees of freedom for the numerator and 95 for the denominator.

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

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

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

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

And we have this property

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

The degrees of freedom for the numerator on this case is given by $df_{num}=df_{within}=k-1$ where k represent the number of groups or treatments. So then if we solve for k we got $k=df_{num}+1=2+1=3$

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

$N=df_{den}+k =18+3=21$ so we have 21 individuals in total

And the total degrees of freedom would be $df=N-1=21 -1 =20$

On this case the correct answer would be:

b. 3 treatments and 21 subjectcs

8 0

3 years ago