All categories

2 years ago

Find out the area and perimeter of circle of radius 7cm

Mathematics

1 answer:

Paraphin [41]2 years ago

4 0

Answer:

Step-by-step explanation:

radius, r = 7 cm

$Area = \pi r^2 = \pi \times 7^2 = 49 \pi = 153.94 \ cm^2\\\\Perimeter = 2 \pi r = 2 \pi \times 7 = 43.98 \ cm$

You might be interested in

3. Sandy's Sweets sells cookies for $1.50 cach while Barbara's Bakery sells cookies for $2.10 each. After

Anna11 [10]

Answer:

5 times

11.50

plz give brainiest

Step-by-step explanation:

4 0

1 year ago

Factorise 4a²_4ab+b²

Natalija [7]

Answer:

$(2a -b)^2$

Step-by-step explanation:

7 0

2 years ago

Simplify 4x-2y(5xyz)

Anna007 [38]

4x-2y(5xyz)

=10xy2z+4x

4 0

2 years ago

Twenty-six students apply to serve as an usher at a school function. Eight of the those applying are freshmen, 7 are sophomores,

Gelneren [198K]

Answer:

Step-by-step explanation:

from usatestprep:

The situation is not an example of uniform probability because freshmen, sophomores, juniors, and seniors do not have equal probabilities of being selected.; Uniform probability → equal probability of being selected

P(freshman) =

; P(sophomore) =

7 /

; P(junior) =

6 /

; P(senior) =

5 /

; unequal probabilities → not uniform

6 0

2 years ago

Read 2 more answers

Find the missing side length

Slav-nsk [51]

Answer:

x ≈ 4.8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Trigonometry

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] cos∅ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Identify Variables

Angle measure = 58°

Adjacent side of angle = x

Hypotenuse = 9

Step 2: Solve for x

Substitute [cosine]: cos58° = x/9
Isolate x: 9cos58° = x
Evaluate: 4.76927 = x
Rewrite: x = 4.76927
Round: x ≈ 4.8

5 0

2 years ago

Read 2 more answers