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krok68 [10]
3 years ago
15

How can you use equations to solve problems involving area and volume?

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
8 0

Answer:

Step-by-step explanation:

I think you're asking how we use formulas to find areas and volumes.

There's no one area formula; the formula we use to calculate an area depends upon the shape.

For example, the area of a square of side length s is A = s^2.

The area of a triangle with base b and height h is (1/2)*b*h.

Similarly, the choice of formula for the purpose of calculating voume depends upon the shape of the 3-dimensional object.

For example, the volume of a cube with side length s is V = s^3.

The volume of a cylinder with radius r and height h is V = (1/3)πr^2*h.

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Find P(6) when p = 0.45
Finger [1]

Answer:

2.7

Step-by-step explanation:

6 0
3 years ago
The spinner below is spun 60 times.<br> Results are shown in the table<br> below.
mezya [45]

Answer:

Step-by-step explanation:

Theortical probability

A = 1/4

B = 1/3

C = 5/12

Experamental probability

A = 18/60 = 3/10

B = 20/60 = 1/3

C =  22/60 = 11/30

8 0
2 years ago
Do the ratios 10:9 and 17:15 form a proportion?
KIM [24]

Answer:

Nope! these ratios do not form a proportion

Step-by-step explanation:

if you use a calculator to divide 10/9, you get 1.111 repeating.

if you use a calculator to divide 17/15, you get 1.133 repeating.

<em>since 1.111 does not equal 1.113, </em><em>these ratios are not proportional. </em>

8 0
4 years ago
A store owner offered a 25% discount off the regular price of a pair of shoes. The amount of the discount is $4.
m_a_m_a [10]

Answer:

D

Step-by-step explanation:

25% of 16 is 1/4x16=4, which leaves D as as your answer

3 0
3 years ago
Read 2 more answers
PQR is a right angled triangle calculate the size of angle marked x
romanna [79]

Answer:

\displaystyle x \approx 37.4^\circ

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

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] cosθ = adjacent over hypotenuse<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

Angle θ = <em>x</em>

Adjacent Leg = 5.8

Hypotenuse = 7.3

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

  1. Substitute in variables [Cosine]:                                                                    \displaystyle cosx^\circ = \frac{5.8}{7.3}
  2. [Fraction] Divide:                                                                                             \displaystyle cosx^\circ = 0.794521
  3. [Equality Property] Trig inverse:                                                                    \displaystyle x^\circ = cos^{-1}(0.794521)
  4. Evaluate trig inverse:                                                                                      \displaystyle x = 37.39^\circ
  5. Round:                                                                                                             \displaystyle x \approx 37.4^\circ
8 0
3 years ago
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