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2 years ago

What is the equation for the line of symmetry in this figure?

Mathematics

1 answer:

Lera25 [3.4K]2 years ago

4 0

Answer:

x = -1

Step-by-step explanation:

the line of the simetry is x = -1

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What is the value of x to the nearest<br> tenth?

Colt1911 [192]

Answer:

C. 17.6

General Formulas and Concepts:

Rounding

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality<u> </u>

<u>Trigonometry</u>

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

<u>Step 1: Identify Variables</u>

Angle θ = 40°

Opposite Leg = <em>x</em>

Adjacent Leg = 21

<u>Step 2: Solve for </u><em><u>x</u></em>

Substitute in variables [tangent]: $\displaystyle tan(40^\circ) = \frac{x}{21}$
[Multiplication Property of Equality] Isolate <em>x</em>: $\displaystyle 21tan(40^\circ) = x$
Rewrite: $\displaystyle x = 21tan(40^\circ)$
Evaluate: $\displaystyle x = 17.6211$
Round: $\displaystyle x \approx 17.6$

6 0

2 years ago

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3.8x 10^2 + 1.7 x10^3

mamaluj [8]

Answer:

2080

Step-by-step explanation:

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2 years ago

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What is the area, in square centimeters, of a right triangle with side

Yanka [14]

Answer:

210 cm^2

Step-by-step explanation:

Let, a=37 cm, b=35 cm, c= 12 cm

s=(a+b+c)/2 = 42 cm

Δ= $\sqrt{s(s-a)(s-b)(s-c)}$

Δ= $\sqrt{42(5)(7)(30)}$

Δ=210 cm^2

5 0

2 years ago

15 points<br> Describe the relationship between the probability of an event and its complement.

Lynna [10]

Probability<span>: </span>Complement<span>. </span>Complement<span> of an </span>Event: All outcomes that are NOT theevent<span>. So the </span>Complement<span> of an </span>event<span> is all the other outcomes (not the ones we want). And together the </span>Event and its Complement<span> make all possible outcomes.</span>

7 0

3 years ago

(i)If the circumference of the circle is 88 cm ; Find the diameter. <br> (Take π = 22/7 )

xxTIMURxx [149]

<h3>Given:</h3>

Circumference of the circle = 88 cm

π = 22/7

The Diameter of the circle.

<h3>Formula:</h3>

Circumference of circle = 2πr

r = radius

<h3>Solution:</h3>

Circumference of the circle = 2πr = 88 cm

Circumference of the circle = πr = 88/2 = 44 cm

Circumference of the circle = r = 44 × 7/22 = 14 cm

r (radius) = 14 cm

d (diameter) = 2r = 2(14) = 28 cm

<h2>Answer:</h2>

Diameter of the circle = 28 cm

4 0

2 years ago