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2 years ago

Multiple Representations:Question 1

Mathematics

1 answer:

alexdok [17]2 years ago

7 0

Answer:

y = 27.1

Step-by-step explanation:

We have the value of x:

x = 12

and we need to find the value of y in the expression:

y = x + 15.1

as we can see by the equation, the value of y depends on the value of x.

thus, we substitute x = 12 on the previous equation:

y = 12 + 15.1

y = 27.1

the value of y is 27.1

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3. Let sin 21 = 0.358. What is the value of x for cos x=0.358?

r-ruslan [8.4K]

Answer:

$\cos(69)$

Step-by-step explanation:

We will use the co-function identity for sine, where:

$\sin(x)=\cos(90-x)$

Since sin(21)=0.358=cos(x). This means that:

$21=90-x$

Solve for x. Add x to both sides:

$x+21=90$

Subtract 21 from both sides:

$x=69\textdegree$

Hence:

$\sin(21)=\cos(69)\approx0.358$

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2 years ago

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Alex_Xolod [135]

Answer:

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Step-by-step explanation:

We want to reflect across the x axis

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3 years ago

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frez [133]

Answer:

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Step-by-step explanation:

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2 years ago

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cestrela7 [59]

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2 years ago

Show each single-step equation. Show your work. V/8 = 2

denis-greek [22]

Answer: V = 16

=========================================================

Explanation:

The notation V/8 means we are dividing V over 8.

To isolate V, we undo this division by applying multiplication. We'll multiply both sides by 8 to get V = 2*8 = 16.

Replacing V with 16 will lead to a true equation

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This helps confirm the answer.

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2 years ago