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3 years ago

Can someone help me

Mathematics

1 answer:

trapecia [35]3 years ago

7 0

This uses the properties of a 30-60-90 triangle. the 90 m is opposite the 60 degree angle to convert to the side opposite the 30 divide 90 by $\sqrt{3}$
90 / $\sqrt{3}$ = 51.96 m or B

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Ann buys a dress in a sale. The normal price of the dress is reduced by 20%. The normal price is £36.80. Work out the sale price

marshall27 [118]

Hello!

Let's do this step by step!

#1

"Reducing" means to make something smaller, like a discount. So we are reducing the price of the dress by 20%. This means we must first find what 20% of the dress's price is and then subtract that from the price.

#2

36.80 * 20% = 7.36

So, 20% of 36.80 is 7.36. Subtract that:

#3

36.80 - 7.36 = 29.44

Answer:

The sale price of the dress is $29.44.

Good day!

5 0

3 years ago

Help ASAP!!

VMariaS [17]

Answer:All answers are to 2 decimal places for accuracy.

1. Width is 27.71"

2. TV Size is 69.84"

3. Width is 51.96"

4. TV Size is 40.13"

5. Height is 26.06"

Part 1: Diagonal is 61.91"

Part 2: Diagonal is 60.21"

Step-by-step explanation:

7 0

2 years ago

Problem 5 Statement: 1. Andre received and spent money in the following ways last month. For each example write a positive or ne

dalvyx [7]

Answer:

$48

Step-by-step explanation:

3 0

2 years ago

Express the complex number z = -4+3i in polar form: r(cos⁡(θ)+i sin(θ)).

kirill [66]

Answer:

5( cos(- 0.64)+ $i$ sin(-0.64))

Step-by-step explanation:

Given:

z = -4+3i

$r=\sqrt{(-4)^2+3^2}= 5$

θ= $tan^-^1(\frac{3}{-4} ) = -0.64$

Polar form=r(cosθ+ $i$ sinθ)=> 5( cos(- 0.64)+ $i$ sin(-0.64))

8 0

3 years ago

Anna, Ben, and Cathy are having a treasure hunt. They head off in three different directions to start looking for treasure. Afte

Olegator [25]

Answer: C. Ben and Cathy

Step-by-step explanation:

The diagram showing the triangle ABC is shown in the attached photo.

a represents the distance between Ben and Cathy.

b represents the distance between Andy and Cathy

c represents the distance between Andy and Ben,

The unknown angle A is determined by subtracting the sum of angle B and angle C from 180 degrees. This is because the sum of angles in a triangle is 180 degrees.

Angle A = 180 - (55 + 50)

= 180 - 105 = 75 degrees.

75 degrees is the biggest angle and thus, the farthest distance. It corresponds to a, the distance between Ben and Cathy.

3 0

3 years ago