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3 years ago

Help please I don’t understand

Mathematics

2 answers:

mestny [16]3 years ago

5 0

Answer:

It is xy

Step-by-step explanation:

yawa3891 [41]3 years ago

4 0

Answer:

Step-by-step explanation:

omit the hypotenuse (XZ) since it's always hypotenuse while the adjacent and opposite sides vary.

hypotenuse cannot be both adjacent and hypotenuse at the same time.

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A computer store decides to increase the prices of all the items it sells by 15%. the store manager uses matrices to prepare the

Andrews [41]

The matrix exists as a set of numbers placed in rows and columns to create a rectangular array. The manager could achieve scalar multiplication on Matrix A, utilizing the scalar 1.15.

<h3>What is the matrix?</h3>

The matrix exists as a set of numbers placed in rows and columns to create a rectangular array. The numbers exist named the elements, or entries, of the matrix. Matrices contain wide applications in engineering, physics, economics, and statistics as well as in different branches of mathematics.

Increasing the price by 15% would mean we exist taking 100% of the value + another 15%

100 + 15 = 115%

115% = 115/100 = 1.15.

Multiplying every value in Matrix A by 1.15 will give the price raised by 15%.

Therefore, the correct answer is option c. by multiplying each entry of matrix a by 1.15.

To learn more about matrix refer to:

brainly.com/question/12567347

#SPJ4

7 0

2 years ago

Use Lagrange multipliers to find the maximum and minimum values of the function subject to the given constraint. f(x,y)= e^xy; X

kotykmax [81]

Answer:

f(x,y) = $e^{xy}$ is maximum at x = 2 and y = 2 and f(2,2) = $e^{4}$

Step-by-step explanation:

Since f(x,y) = $e^{xy}$ and x³ + y³ = 16, Ф(x,y) = x³ + y³ - 16

df/dx = y $e^{xy}$ , df/dy = x $e^{xy}$ , dФ/dx = 3x² and dФ/dy = 3y²

From the method of Lagrange multipliers,

df/dx = λdΦ/dx and df/dy = λdΦ/dy

y $e^{xy}$ = 3λx² (1) and x $e^{xy}$ = 3λy² (2)

multiplying (1) by x and (2) by y, we have

xy $e^{xy}$ = 3λx³ (4) and xy $e^{xy}$ = 3λy³ (5)

So, 3λx³ = 3λy³

⇒ x = y

Substituting x = y into the constraint equation, we have

x³ + y³ = 16

x³ + x³ = 16

2x³ = 16

x³ = 16/2

x³ = 8

x = ∛8

x = 2 ⇒ y = 2, since x = y

So, f(x,y) = f(2,2) = $e^{2 X2}$ = $e^{4}$

We need to determine if this is a maximum or minimum point by considering other points that fit into the constraint equation.

Since x³ + y³ = 16 when x = 0, y is maximum when y = 0, x = maximum

So, 0³ + y³ = 16

y³ = 16

y = ∛16

Also, when y = 0, x = maximum

So, x³ + 0³ = 16

x³ = 16

x = ∛16

and f(0,∛16) = $e^{0X\sqrt[3]{16} } = e^{0} = 1$ .

Also, f(∛16, 0) = $e^{\sqrt[3]{16}X0 } = e^{0} = 1$ .

Since f(0,∛16) = f(∛16, 0) = 1 < f(2,2) = $e^{4}$

f(2,2) is a maximum point

8 0

3 years ago

What can you conclude about dilations from your observations in question 5

Over [174]

Answer:

The angles remain the same for all values of n. After a dilation, the angle measurements for the image and the preimage are always equal.

Step-by-step explanation:

5 0

3 years ago

Analia wants to know which school has higher athletic achievement relative to the budget per student

user100 [1]

Answer:

SAT average divided by budget per student

Graduation rate divided by budget per student

No. The definitions have opposite results.

Step-by-step explanation:

DID IT ON KHAN and

The key understanding here is that there isn't a single way to define "academic achievement." Graduation rate can be a good measure of that. Average SAT is also a good measure. The rate of students who are accepted into college can also be a good measure, but we are not given information about that.

Now let's go over the options and see which of them might be used to describe "academic achievements relative to the budget per student."

Hint #22 / 4

Definition Analysis Appropriate?

SAT average divided by budget per student "SAT average" is a measure of academic achievement. Dividing this by the budget per student gives us a good definition.

Yes

Yesstart color #1fab54, start text, Y, e, s, end text, end color #1fab54

Graduation rate divided by budget per student "Graduation rate" is a measure of academic achievement. Dividing this by the budget per student gives us a good definition.

Yes

Yesstart color #1fab54, start text, Y, e, s, end text, end color #1fab54

Number of sports medals won divided by budget per student "Number of sports medals won" isn't a measure of academic achievement.

Nostart color #e84d39, start text, N, o, end text, end color #e84d39

Graduation rate divided by number of sports medals won "Graduation rate" is a measure of academic achievement, but it's divided by the number of sports medals won, and not by the budget per student.

Nostart color #e84d39, start text, N, o, end text, end color #e84d39

Hint #33 / 4

We are left with two definitions for academic achievements relative to the budget per student:

SAT average divided by budget per student

Graduation rate divided by budget per student

Let's calculate the academic achievements relative to the budget per student for each school according to each definition:

School Definition #1 Definition #2

≈

0.114

student points

dollar

≈0.114

dollar

student points

approximately equals, 0, point, 114, start fraction, start text, s, t, u, d, e, n, t, space, p, o, i, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

≈

0.0082

student percents

dollar

≈0.0082

dollar

student percents

approximately equals, 0, point, 0082, start fraction, start text, s, t, u, d, e, n, t, space, p, e, r, c, e, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

0.105

student points

dollar

0.105

dollar

student points

0, point, 105, start fraction, start text, s, t, u, d, e, n, t, space, p, o, i, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

0.009

student percents

dollar

0.009

dollar

student percents

0, point, 009, start fraction, start text, s, t, u, d, e, n, t, space, p, e, r, c, e, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

Which school has higher academic achievements relative to the budget per student? School A School B

[Show me the calculations used for this table.]

Hint #44 / 4

In conclusion:

1) These are the two definitions Analia came up with to define the quantity:

SAT average divided by budget per student

Graduation rate divided by budget per student

2) The definitions have opposite results.

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7 0

3 years ago

What is 156 divided by 12?

madreJ [45]

The answer for your question is thirteen

7 0

3 years ago