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luda_lava [24]
3 years ago
8

Help me pleaseeeeee!!!!!!

Mathematics
1 answer:
mojhsa [17]3 years ago
3 0

Step-by-step explanation:

AC = 20

AB = 18

BC² = 20²+ 18² -2•20•18•cos(52°)

BC² = 280.72

BC = √280.72

BC ≈ 16.75

Angle C:

18² = 20² + 16.75² -2•20•16.75•cos(C)

324 = 400 + 280.72 -670•cos(C)

cos(C) = -356.72/-670

cos(C) ≈ 0.53

acos(0.53) = C

C = 57.8°

Angle B:

180-52-57.8 = 70.2°

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a store is having a clearance sale where merchandise on the sales racks is reduced by 80% from the original. if a jacket was ori
posledela

The sales price is $15.2

Step-by-step explanation:

Given,

Discount = 80%

Original price = $76

Discount price = 80% of original price

Discount\ price=\frac{80}{100}*76\\Discount\ price=\frac{6080}{100}\\Discount\ price=\$60.8

Sale's price = Original price - Discount price

Sale\ price= 76-60.8\\Sale\ price= \$15.2

The sales price is $15.2

Keywords: Subtraction, percentage

Learn more about subtraction at:

  • brainly.com/question/8280736
  • brainly.com/question/8301701

#LearnwithBrainly

8 0
3 years ago
A number is chosen at random from 1 to 10. Find the probability of selecting factors of 4 and factors of 6
disa [49]
4,6,8 because 4 times 2 is 8 and 6 times 1 equals 6 and 1 times 4 equals 4
5 0
3 years ago
Math help please, thank you!
CaHeK987 [17]
The answer to the first question of the attached document is option 1. We obtain the answer subtracting the term n from the series with the term n-1.For example:
 -3 - (- 5) = 2
 -1 - (- 3) = 2
  1 - (- 1) = 2
 So you can see that the common difference is the 2.

 The answer to the second question is option 3:
 y = | x + 7 |
 We can confirm it by substituting values in the equation.
 For example:
 if we do y = 0 then x = -7
 if we do x = 0 then y = 7.
 As corresponds in the graph shown.
 Remember also that as a general rule yes to the equationy = | x | whose vertex is in the point (0,0) we add a positive real number "a" of form y = | x + a | then the graph of y = | x | will move "to" units in the negative direction of x.

 The answer to the third question is option 4.
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 k = y / x
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3 0
3 years ago
Use the following expression to
IgorLugansk [536]

Answer:

part A :BODMAS ( Bracket of Division Multiplication Addition Subtraction )

part b; Bracket (2+3.2) = - 2- 3.2

= 16- 2-3.2 +30-5

ADDITION:-3.2+30 = - 33.2

16-2(-33.2)30-5

14-33.2 +30-5

14-33.2 +25

-19.2+25

-44.2

Step-by-step explanation:

THE FOLLOWING EQUATION CAN ONLY BE SOLVED USING BODMAS

3 0
2 years ago
Shannon burns 46 calories each hour while sleeping. When she plays basketball, she burns 11 times as many calories as she does w
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Answer: 1012 calories

Step-by-step explanation:

Shannon burns 46 calories each hour while sleeping.

When she plays basketball, she burns 11 times as many calories as she does when sleeping. The amount of calories burnt when she plays basketball will be:

= 11 × 46

= 506 calories

She burns twice as many calories each hour when she runs than when she plays basketball. The amount of calories burnt when she runs will be:

= 2 × 506 calories

= 1012 calories

The amount of calories that Shannon burn when she runs for 1 hour will be 1012 calories

6 0
3 years ago
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