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3 years ago

Which powers are listed in order from least to greatest value?

Mathematics

1 answer:

lord [1]3 years ago

6 0

I would go with B i had this question on my test and i got it correct

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A tank, shaped like a cone has height 11 meter and base radius 4 meter. It is placed so that the circular part is upward. It is

aksik [14]

Answer:

The tank is a cone, so the radius of the cross section increases linearly with h

At y=0, r=4 and at y=11, r=0

r(y)=4/11 (11−y)

A(y)=π[4(11−y)11]^2

Integral will be:

11∫0 (1000)(9.8)(4πy^2)(25)(11−y)dy

Step-by-step explanation:

3 0

3 years ago

Find the midpoint of A and B where A has coordinates (2,9)

timofeeve [1]

Answer:

$(\dfrac{9}{2}, \dfrac{13}{2})$

Step-by-step explanation:

The coordinates of A = (2,9)

The coordinates of B = (7,4)

Let M (x,y) be the mid point of A and B.

$M(x,y)=(\dfrac{x_1+x_2}{2}),(\dfrac{y_1+y_2}{2})\\\\=\dfrac{2+7}{2}, \dfrac{9+4}{2}\\\\=(\dfrac{9}{2}, \dfrac{13}{2})$

So, the coordinates of mid point of A and B is $(\dfrac{9}{2}, \dfrac{13}{2})$ .

7 0

3 years ago

The amount of money Sharita makes varies directly with the number of hours she works. If she earns $41.25 for 5 hours of work, h

fgiga [73]

Let M be the amount she earns and H the hours worked;
M $\alpha H$
M=aH
Where a is a constant of proportionality;
Given that M=41.25 and H=5
41.25=5a
a= $\frac{41.25}{5}$
a=8.25
The equation then is;
M=8.25H
When she works 8 hours;
M=8.25*8
=66 dollars

4 0

3 years ago

The following data represent the discrete probability distribution for the number of stars that reviewers have a first edition s

Shkiper50 [21]

Answer:

Step-by-step explanation:

given that the following data represent the discrete probability distribution for the number of stars that reviewers have a first edition statistics reference book.

Stars 5 4 3 2 1

Probability 25% 35% 20% 10% 10%

H0: Second edition is as per the above probabilities

Ha: atleast one is different from the above probability

(two tailed chi square test)

Alpha = 0.025

Assuming H0 to be true we calculate expected frequencies for total 80

chi square calculatons are shown below

df = 4

5 4 3 2 1 Total

Observed 28 28 13 6 5 80

Expected 20 28 16 8 8 80

chi square

(O_E)^2/E 3.2 0 0.5625 0.5 1.125 5.3875

p value =0.1455

Since p value >0.025, we accept H0

The expected requency of three-star reviews is ________.16

3 0

3 years ago

Using the order of operations, what should be done first to evaluate (-2)^3 + 4 / (-15 + 9)(3) - 4

kogti [31]

Answer:

A. add -15 and 9

Step-by-step explanation:

We follow the PEMDAS rule as the order of operations to evaluate expressions.

P-Parenthesis

E-Exponents

M-Multiplication

D-Division

A-Addition

S-Subtraction

Given expression : $(-2)^3+4\div(-15+9)(3)-4$

In order to evaluate the expression, the first step would be to do the parenthesis operations which requires to add -15 and 9.

7 0

3 years ago

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