5. Two different classes took a survey to determine the number of minutes spent on
homework one evening. Here is a box plot showing the results from Class A:
35 40 45 50 55 60 65 70 75 80 85 90 95 100
Here are the results from Class B:
10, 15, 20, 20, 25, 30, 30, 35, 40, 45, 45, 45, 60, 60, 80
class did students spend less time on their homework?
a. In wh
b. Which class had less variability in the amount of time spent on homework?

Answer:

( x + 8 )( x - 8 ); None of the above

Step-by-step explanation:

Apply quadratic formula a^2 - b^2 = ( a + b )( a - b );

x^2 - 64 ⇒

x^2 - 8^2 ⇒

Answer: ( x + 8 )( x - 8 ); None of the above

Answer:Graph y=5-2x. y=5−2x y = 5 - 2 x. Reorder 5 5 and −2x - 2 x . y=−2x+5 y = - 2 x + 5.

To be in the 90th percentile of birth weights, a baby would need to weigh approximately 8.976 lbs at birth.

The 90th percentile corresponds to the value below which 90% of the data falls.

In this case, we have a normal distribution with a known mean and standard deviation of birth weights. To find the weight at the 90th percentile, we can use the properties of the standard normal distribution.

First, we convert the percentile to a Z-score using a Z-table or calculator. For the 90th percentile, the Z-score is approximately 1.28.

Next, we can use the Z-score formula to calculate the corresponding weight:
Z = (x - mean) / standard deviation

By rearranging the formula and substituting the values:
1.28 = (x - 6.8) / 1.7

Solving for x, the weight at the 90th percentile, we have:
1.28 * 1.7 = x - 6.8
2.176 = x - 6.8
x = 2.176 + 6.8
x ≈ 8.976 lbs

Therefore, a baby would need to weigh approximately 8.976 lbs at birth to be considered in the 90th percentile of birth weights.

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Answer:

14

Step-by-step explanation:

Answer:

Use: sin

h= 78.8

Step-by-step explanation:

Answer:

The answer is D. {(8, 1), (4, 1), (0, 1), (-15, 1)}

Step-by-step explanation:

It's not A because Since  

x

=

−

2

produces  

y

=

4

and  

y

=

11

, the relation  

(

−

2

,

−

12

)

,

(

−

2

,

0

)

,

(

−

2

,

4

)

,

(

−

2

,

11

)

is not a function.

The relation is not a function.

it's not B. because Since  

x

=

1

produces  

y

=

2

and  

y

=

3

, the relation  

(

0

,

1

)

,

(

0

,

2

)

,

(

1

,

2

)

,

(

1

,

3

)

is not a function.

The relation is not a function.

It's not C. because Since  

x

=

1

produces  

y

=

−

2

and  

y

=

0

, the relation  

(

−

4

,

−

6

)

,

(

−

3

,

−

2

)

,

(

1

,

−

2

)

,

(

1

,

0

)

is not a function.

The relation is not a function.

Answer:

$160

Step-by-step explanation:

$100-$75=$25

$9*15=$135

$25+$135=$160

Hope this helps

Answer:

3 9/32

Step-by-step explanation:

First:

Convert any mixed numbers to fractions.

Then your initial equation becomes: 105/32

Applying the fractions formula for multiplication,

Simplifying 105/32, the answer is 3 9/32

Using the property of fractions, we know that Frank ran 2.79 miles.

So, in this case, we have the mixed fraction:

Convert in proper fractions as follows:

We know, 1 km = 0.62 miles.

So, now converting 4.5km into miles as follows:

Therefore, using the property of fractions, we know that Frank ran 2.79 miles.

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Answer:

D

Step-by-step explanation:

Answer:

232 units

Step by step explanation

The congruent triangles in this problem are given as follows:

Triangles A and B.

Two figures are classified as congruent if their side lengths are the same.

If we rotate triangle B 180º over it's base, we have that it will have a similar format to triangle A, and also with the same side lengths.

Hence the congruent triangles in this problem are given as follows:

Triangles A and B.

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Check the graph below, please.

1) From this problem, we can see that the amplitude is given by the radius of 9.5m. Since this Ferris wheel rotates at once every 10 seconds, then we can write out the period as 10. Adding the period to the 1.2 meters above the ground yields us the midline: 9+1.2= 10.2

2) From this we can write out the following:

Period:

Phase Shift (C):

a) So we can write out the following equation:

So this is the sinusoidal function (sine) with the height in meters, and time in seconds.

b) Let's sketch the graph for this sinusoidal function, considering two complete cycles:

Note that since the period is 10, we have two cycles when x=20.

Answer:

x=8

Step-by-step explanation:

Answer:

x=8

Step-by-step explanation:

30-3x=3x-24+6

-3x-3x= -24+6-30

-6x= -18-30

-6x= -48

x= -48/-6

x=8

The expression that results in 45.37 is (int)(45.378 * 100) / 100.0.

To find which of the expressions results in 45.37, we need to evaluate each of them one by one.

Let's evaluate each expression one by one.

(int)(45.378 * 100) / 100 = (int)(4537.8) / 100

                                      = 45 / 100

                                      = 0.45(int)(45.378 * 100 / 100)

                                      = (int)(45.378)

                                      = 45(int)(45.378 * 100) / 100.0

                                      = (int)(4537.8) / 100.0

                                      = 45.0 / 100.0

                                      = 0.45(int)(45.378) * 100 / 100.0

                                      = 45 * 100 / 100.0

                                      = 4500.0 / 100.0

                                      = 45.0

Out of the given expressions, the expression that results in 45.37 is (int)(45.378 * 100) / 100.0.

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The Top left is the graph you're looking for. It matches the inequalities and the intercepts.

The formula for the expression g (f (x)) is

We can simply g(f(x)) as follows

Given that f(x) = 7x, and g(x) = x³

gf(x) = (7x)³

= 7 * 7 * 7 * x * x * x

= 49 * 7 * x² *x

= 343 * x³

= 343x³

Therefore, the solution for g(f(x)) = 343x³

Among the options provided, the correct answer is  B

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The 30th term a30 of the sequence is -1445

The definition of the function is given as

arithmetic sequence of 1,-4,-9,-14

The above definitions imply that we simply subtract 5 from the previous term to get the current term

Using the above as a guide,

so, we have the following representation

First term, a = 1

Common difference, d = 5

An arithmetic sequence is represented as

a(n) = a + (n - 1)d

For the 30th term, we have

a(30) = a + 29d

So, we have

a(30) = 1 + 29 * -5

Evaluate

a(30) = -144

Hence, the value of a30 is -144

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Answer:

1/6th chance.

P.s.

please give brainliest

Answer:

3,-4

Step-by-step explanation:

The volume of the right prism include the following: 8,640 in³.

In Mathematics and Geometry, the volume of a rectangular prism can be calculated by using the following formula:

Volume of a rectangular prism = L × W × H

Where:

Next, we would determine the area of the triangle at the base of the right prism as follows:

Base area = 1/2 × ( 36 × 12)

Base area = 1/2 × 432

Base area = 216 in².

Now, we can calculate the the volume of this right prism:

Volume = base area × height

Volume = 216 × 40

Volume = 8,640 in³.

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The solution to the system of differential equations is x(t) = -\(3e^{(31t)\) and z(t) = -\(3e^{(31t\)).

To solve the given system of differential equations, we'll begin by finding the eigenvalues and eigenvectors of the coefficient matrix.

The coefficient matrix is A = [[-22, 54], [-9, 23]]. To find the eigenvalues λ, we solve the characteristic equation det(A - λI) = 0, where I is the identity matrix.

det(A - λI) = [[-22 - λ, 54], [-9, 23 - λ]]

=> (-22 - λ)(23 - λ) - (54)(-9) = 0

=> λ^2 - λ(23 + 22) + (22)(23) - (54)(-9) = 0

=> λ^2 - 45λ + 162 = 0

Solving this quadratic equation, we find the eigenvalues:

λ = (-(-45) ± √((-45)^2 - 4(1)(162))) / (2(1))

λ = (45 ± √(2025 - 648)) / 2

λ = (45 ± √1377) / 2

The eigenvalues are λ₁ = (45 + √1377) / 2 and λ₂ = (45 - √1377) / 2.

Next, we'll find the corresponding eigenvectors. For each eigenvalue, we solve the equation (A - λI)v = 0, where v is the eigenvector.

For λ₁ = (45 + √1377) / 2:

(A - λ₁I)v₁ = 0

=> [[-22 - (45 + √1377) / 2, 54], [-9, 23 - (45 + √1377) / 2]]v₁ = 0

Solving this system of equations, we find the eigenvector v₁.

Similarly, for λ₂ = (45 - √1377) / 2, we solve (A - λ₂I)v₂ = 0 to find the eigenvector v₂.

The general solution of the system is x(t) = c₁e(λ₁t)v₁ + c₂e(λ₂t)v₂, where c₁ and c₂ are constants.

Using the initial condition x(0) = -3, we can substitute t = 0 into the general solution and solve for the constants c₁ and c₂.

Finally, substituting the values of c₁ and c₂ into the general solution, we obtain the particular solution for x(t).

Since z(t) = x(t), the solution for z(t) is the same as x(t).

Therefore, the solution to the system of differential equations is x(t) = \(-3e^{(31t)\) and z(t) = -\(3e^{(31t)\).

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Answer:

Is that all

_______

_______

answer:ok

there are 3 and one fith apples

he need 4

apples

he adds 5/8

apples to his basket

how many apples doess  he end up with

Step-by-step explanation:you add them together

To find the approximate number of years until the species is extinct, we need to determine the value of t when the population, p(t), reaches zero.

The given equation for the population of the species is p(t) = -t^4 + 72t^2 + 225. To find the years until the species is extinct, we set p(t) equal to zero and solve for t:

0 = -t^4 + 72t^2 + 225

Unfortunately, this equation cannot be easily solved algebraically. However, we can approximate the solution using numerical methods or graphing software. By plotting the graph of p(t) = -t^4 + 72t^2 + 225, we can visually determine the value(s) of t where the population becomes zero.

To find the approximate number of years until the species is extinct, we need to solve the equation -t^4 + 72t^2 + 225 = 0. This requires either using numerical methods or graphing software to determine the value(s) of t when the population reaches zero.

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Answer: I believe the answer is c

Step-by-step explanation:

has the cat will need to weigh more than 14 pounds it will need the greater than sign and not the greater than or equal than

Answer:

I think the answer is -7 1/5, -7.1 repeating, 23/3, square root of 50

Ms. Lemm follows a constructivist view of learning, which recognizes that students bring their own knowledge, ideas, and values to the learning experience, resulting in individualized constructions of knowledge.

Ms. Lemm's approach to learning aligns with the constructivist view. Constructivism is a learning theory that emphasizes the active role of learners in constructing their own understanding and knowledge. According to this perspective, learners are not passive recipients of information but actively engage with the learning materials, drawing upon their prior knowledge, experiences, and beliefs.

Ms. Lemm recognizes that students enter the learning process with their own unique backgrounds, perspectives, and existing knowledge. She understands that these factors significantly influence how students interpret and make sense of new information. Consequently, Ms. Lemm embraces the idea that students construct their own understanding and meaning through interactions with the subject matter and the learning environment.

In Ms. Lemm's classroom, the focus is on creating an environment that encourages student engagement, collaboration, and critical thinking. She acknowledges that different students may interpret and internalize the same lesson in distinct ways, based on their prior knowledge, interests, and individual perspectives. By acknowledging and valuing these diverse ways of learning, Ms. Lemm supports personalized learning experiences and fosters the growth and development of each student's unique understanding.

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Answer:0=0

Step-by-step explanation: