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Hunter-Best [27]
3 years ago
7

Pls help question is in the images

Mathematics
1 answer:
hodyreva [135]3 years ago
8 0
The symbol \displaystyle{ T_{\ \textless \ -4, 2\ \textgreater \ }(\triangle ABC) means that:

we translate ( shift ) the triangle ABC -4 units horizontally and 2 units vertically.

This means that the triangle needs to be shifted 4 units left, and 2 units up.


The only figure which displays such a movement of the triangle (left, up) is the one in the attachment below. That is the answer.

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9 cos(sin¯¹(x)) = √81 – 81x²
Ira Lisetskai [31]

The equation 9cos(sin¯¹(x)) = √(81 – 81x²) is true since L.H.S = R.H.S

To answer the question, we need to know what an equation is

<h3>What is an equation?</h3>

An equation is a mathematical expression that show the relationship between two variables.

Given 9cos(sin¯¹(x)) = √(81 – 81x²), we need to show L.H.S = R.H.S

So, L.H.S = 9cos(sin¯¹(x))

= 9[√{1 - sin²(sin¯¹(x)}] (Since sin²y + cos²y = 1 ⇒ cosy = √[1 - sin²y])

9[√{1 - sin²(sin¯¹(x)}] = √9² × √{1 - sin²(sin¯¹(x)}]

= √[9² × {1 - sin²(sin¯¹(x)}]

= √[81 × {1 - sin²(sin¯¹(x)}]

= √[81 × {1 - x²}]   (since sin²(sin¯¹(x) = [sin(sin¯¹(x)]² = x²)

= √(81 – 81x²)

= R.H.S

So, the equation 9cos(sin¯¹(x)) = √(81 – 81x²) is true since L.H.S = R.H.S

Learn more about equations here:

brainly.com/question/2888445

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6 0
2 years ago
Triangle L N M is shown. Angle L N M is 90 degrees and angle N M L is 20 degrees. The length of L N is 21.
Margaret [11]

The length of the triangle will be equal to 2.7.

<h3>How to calculate the length?</h3>

It should be noted that that sin will be the opposite divided by the hypothenuse.

The measure of angle L is 20°.

This will be:

sin 20 = LN/8

NM = 8 sin 20

NM = 2.7

In conclusion, NM is 2.7.

Learn more about triangles on:

brainly.com/question/16232822

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7 0
2 years ago
A 14-foot tree casts an 18-foot shadow. Find the angle of elevation from the tip of the shadow to the top of the tree. Round the
serious [3.7K]
The tangent of the angle would be given by 14/18, so the angle would be:
tan⁻¹(14/18)
= 37.9 to the nearest tenth of a degree
6 0
3 years ago
Unit 3: Parallel &amp; Perpendicular Lines Homework 5: Linear Equations Slope-Intercept &amp; Standard Form
Alona [7]
And you can see that I don’t have respect you don’t deserve that you
4 0
3 years ago
8q=3(10+q) what is the value of Q
abruzzese [7]

Answer:

Step-by-step explanation:

8q=30+3q

5q=30

q=6

3 0
3 years ago
Read 2 more answers
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