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3 years ago

Help me with this .

Mathematics

2 answers:

guajiro [1.7K]3 years ago

5 0

The open circle is at negative one, pointing left and the closed circle is at two pointing right, the opposite direction.

Happy studying!
~Brooke❤️

vaieri [72.5K]3 years ago

4 0

Open circle at -1 pointing left and closed circle at 2 pointing right

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What is the approximate area of the triangle below?<br> 95 degrees 35 degrees 14cm.

svp [43]

By utilizing the law of the sines and Heron's formula, we find that the <em>approximate</em> area of the triangle is approximately 73.1 square centimeters. (Correct choice: A)

<h3>How to calculate the area of a triangle by Heron's formula</h3>

Prior to using Heron's formula, we must find the lengths of the missing sides by law of the sines:

A = 180° - 95° - 35°

A = 50°

$b = 14\,cm \times \frac{\sin 35^{\circ}}{\sin 50^{\circ}}$

b ≈ 10.483 cm

$c = 14\,cm \times \frac{\sin 95^{\circ}}{\sin 50^{\circ}}$

c ≈ 18.206 cm

Now, we proceed to calculate the area of the triangle:

s = 0.5 · (14 cm + 10.483 cm + 18.206 cm)

s = 21.345 cm

$A = \sqrt{(21.345\, cm) \cdot (21.345\, cm - 14\,cm)\cdot (21.345\, cm - 10.483\,cm)\cdot (21.345\,cm - 18.206\,cm)}$

A ≈ 73.113 cm²

By utilizing the law of the sines and Heron's formula, we find that the <em>approximate</em> area of the triangle is approximately 73.1 square centimeters. (Correct choice: A)

To learn more on triangles: brainly.com/question/2773823

#SPJ1

4 0

2 years ago

Evaluate (a + b)3 – 12 when a = 2 and b = 1.

dimulka [17.4K]

Answer:

the answer is -3

Step-by-step explanation:

(2+1)*3-12 is -3

4 0

3 years ago

A company that teaches self-improvement seminars is holding one of its seminars in Middletown. The company pays a flat fee of $1

Nutka1998 [239]

Answers:

To reach the breakeven point, how many attendees will that take? <u> 117 </u>

What will be the company's total expenses and revenues? <u> $1755 for each </u>

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

Explanation:

x = number of attendees

C(x) = cost function for the company

C(x) = 14x+117

This is because the company pays $14 per person, so x of them accounts for 14x dollars. Then we add on the flat fee of $117 to get 14x+117 dollars overall.

In contrast, the revenue is

R(x) = 15x

because each attendee brings in $15 for the company

The breakeven point is when the cost and revenue are the same. This produces a profit of $0.

R(x) = C(x)

15x = 14x+117

15x-14x = 117

x = 117

If 117 people attend the seminar, then the company breaks even.

To check this, we'll compute the cost and revenue

C(x) = 14x+117

C(117) = 14*117+117

C(117) = 1755

R(x) = 15x

R(117) = 15*117

R(117) = 1755

The cost and revenue is $1755 for each. Because we get the same value, this confirms the correct x value.

Since 117 people is the breakeven point, the company should aim for an attendee count above this, so they can get a positive profit. At some point, there is a max capacity so x can't go up forever.

7 0

2 years ago

Parenthesis 3 plus negative square root of 16 parenthesis 6 minus negative square root of 64

inessss [21]

Answer: 2

Explanation: got off math wy in pic

6 0

3 years ago

What is the volume of the prism that can be constructed from this net?

Alecsey [184]

That would make a rectangular prism with measurements of:

Length = 9
Width = 4
Height = 10

V = lwh

V = 9 * 4 * 10

V = 360

7 0

3 years ago

Read 2 more answers