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Leni [432]
2 years ago
7

A rectangle has a length of 1.5abc and a width of 10abc find the area of the rectangle

Mathematics
1 answer:
Vikentia [17]2 years ago
5 0

Answer:

A =  15 a²b²c² square units

Step-by-step explanation:

Area of a rectangle = LW

                    A = (1.5abc)(10abc)

                    A =  15 a²b²c² square units

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N = 9
g100num [7]

Answer:

The <em>p</em>-value is 0.809.

Step-by-step explanation:

In this case we need to perform a significance test for the standard deviation.

The hypothesis is defined as follows:

<em>H</em>₀: <em>σ</em>₀ = 4 vs. <em>Hₐ</em>: <em>σ</em>₀ ≤ 4

The information provided is:

<em>n</em> = 9

<em>s</em> = 3

Compute the Chi-square test statistic as follows:

\chi^{2}=\frac{(n-1)s^{2}}{\sigma_{0}^{2}}

     =\frac{(9-1)\cdot (3)^{2}}{(4)^{2}}\\\\=\frac{8\times 9}{16}\\\\=4.5

The test statistic value is 4.5.

The degrees of freedom is:

df = n - 1

   = 9 - 1

   = 8

Compute the <em>p</em>-value as follows:

p-value=P(\chi^{2}_{9}>4.5)=0.809

*Use a Chi-square table.

Thus, the <em>p</em>-value is 0.809.

7 0
2 years ago
I need help ASAP. If TU=10 and ST=15, What is the measure of the radius of the circle?
Svetach [21]

Answer:

5.6

Step-by-step explanation:

Use pythag to get SU. 10^2 + x^2 = 15^2, this will give you x = 11.2. 11.2 is the diameter of SU so divide it by 2 to get the radius. 11.2/2= 5.6.

3 0
2 years ago
John rides his bike with a constant speed of 20 km/h. How far can he travel in 2 1/2 hours?
Olegator [25]

Ok so,

20*2= 40

20*1/2=10

40+10=50

So Johncan travel 50 km in 2 1/2 hours.

Hope this helps :)

4 0
3 years ago
Find any values of the variable for which each rational expression is undefined. Write answers with the symbol ≠.
astra-53 [7]

Answer:

x \neq 3

Step-by-step explanation:

if  x = 3 then  the rational expression    4 / (x - 3) is undefined

because we get   4/0 = undefined .

4 0
2 years ago
Hi i am having trouble with this question can some one help me on it i heard this app really helps you understand question i mig
Evgen [1.6K]

Answer:

n = -1

Step-by-step explanation:

Guess your question is to find n

Given:

-6 + 3n = -9

-6 + 3n = -9

Add 6 to both sides

-6 + 6 + 3n = -9 + 6

3n = -3

Divide both sides by 3

n = -3 / 3

= -1

n = -1

Check:

-6 + 3n = -9

-6 + 3(-1) = -9

-6 - 3 = -9

- 9 = - 9

6 0
2 years ago
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