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SCORPION-xisa [38]
4 years ago
7

Help please!! ~~~~~~~~~~~~~~~~

Mathematics
1 answer:
podryga [215]4 years ago
3 0
Estimate of discount: $4.50
total after discount: $18

hope this helps :)

edit: just saw the answer choices, the answer should be b.0.2

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Without using calculator or table find the value of sin 15°​
lubasha [3.4K]

Answer:

.25881

Step-by-step explanation:

sin15

=sin(45-30)

=sin45.cos30-cos45.sin30

=(0.707×0.86)-(0.707×0.5)

=(0.6082)-(0.3535)

=0.25

6 0
3 years ago
Help wanted pls math
Serjik [45]

Answer:

39 ft²

Step-by-step explanation:

Area of a triangle = 1/2bh

Let:

base = b = 4 ft

height = h = 3 ft

Solve for the area of the triangle:

A = 1/2(4)(3)

A = 2 * 3

A = 6 ft²

Area of a rectangle = bh

Let:

base = b = 9 ft

height = h = 5 ft

Solve for the area of the rectangle:

A = (9)(5)

A = 9 * 5

A = 45 ft²

Subtract the area of the triangle from the area of the rectangle:

45 - 6 = 39 ft²

39 ft² is your answer.

~

3 0
3 years ago
Read 2 more answers
At a football game, 92% of people attending were supporting the home team, while 8% were supporting the visiting team. If the to
Harlamova29_29 [7]

Answer:

552 supporters of the home team.

Step-by-step explanation:

92% × 600 = 552

4 0
3 years ago
Find the center and the radius of the circle with the equation x^2-4x+y^2-12y+31=0
ivanzaharov [21]
<h2>C: Center: (2, 6)</h2><h2>Radius: 3</h2>

<em />

5 0
3 years ago
David keeps a range of stationery in his study. one could find pencils, erasers and pens in his study.5/7 of his stationery cons
tiny-mole [99]

The total units of stationery he has would be 55 approximately.

<h3>What is a system of equations?</h3>

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

David keeps a range of stationery in his study.

Let the pencil is represented by x.

Let the erasers be represented by y.

Let the pens be represented by z.

Let n be the stationery.

5/7 of his stationery consists of pencils.

x = 5/7 n

1/6 of the remaining stationery consists of erasers.

y = 1/6 n

There are 20 pens in his study.

z = 20

The total stationery

X + y + z

5/7 n + 1/6 n + 20 = n

20 = n -23/ 36 n

20 = 13 / 36 n

n = 55.38

Therefore, the total units of stationery he has would be 55 approximately.

Learn more about equations here;

brainly.com/question/10413253

#SPJ1

6 0
2 years ago
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