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hammer [34]
3 years ago
7

PLEASE ANSWER FAST BRAINLIEST TIMED !!!

Mathematics
1 answer:
Levart [38]3 years ago
8 0

Answer:

43.2

Step-by-step explanation:

First you take off 20% from $60, and get $48, but you would take 10% off and get 43.2.

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One mirror is to be in the shape of a triangle whose height is 6 feet less than twice the base of the mirror. If the mirror has
Vlad1618 [11]

Answer:

Base of the mirror is 12 feet and height of the mirror is 18 feet.

Step-by-step explanation:

Given:

Area of the triangular mirror = 108 sq ft.

Let base (b) of the mirror be x.

Now given:

height is 6 feet less than twice the base of the mirror

So we can say that;

Height (h) = 2x-6

We need to find the base and height of the mirror.

Solution:

Now we know that mirror is in triangular shape so we will apply area of triangle formula to find base and height.

Now Area of triangle is half times base times height.

framing in equation form we get;

108=\frac{1}{2} \times x \times(2x-6)\\\\108=\frac{1}{2}\times x \times 2(x-3)\\\\108=x(x-3)\\\\108=x^2-3x\\\\x^2-3x-108=0

Now we will find the roots of x by factorizing the equation we get;

x^2-12x+9x-108=0\\\\x(x-12)+9(x-12)=0\\\\(x-12)(x+9)=0

Now we will solve for 2 values of x we get;

x-12=0\\\\x=12\ ft\\\\Also;\\\\x+9=0\\\\x=-9\ ft

Now we get 2 values of 'x' one positive and one negative.

Since x is base of the triangle which cannot be negative.

so we will discard the negative value.

Hence;

base of triangle = 12 ft

Height of the triangle = 2x-6=2\times12-6 =24-6 =18\ ft

Hence Base of the mirror is 12 feet and height of the mirror is 18 feet.

7 0
3 years ago
In which quadrant does θ lie if the following statements are true: cos⁡θ>0 and sin⁡θ>0
Papessa [141]

Answer:

First quadrant

Step-by-step explanation:

cosθ > 0 in first/ fourth quadrants

sinθ > 0 in the first/ second quadrants

sinθ and cosθ are both > 0 in the first quadrant

Then θ lies in the first quadrant

6 0
2 years ago
Is this symmetrical or asymmetrical? <br>Dont guess!<br>I will mark brainliest if its correct!
lilavasa [31]

Answer:

im just saying this is supposed to help you, this is just flat out cheating, but its d

Step-by-step explanation:

5 0
2 years ago
A newspaper for a large city launches a new advertising campaign focusing on the number of digital subscriptions. The equation S
murzikaleks [220]
The answer is c. the number of digital subscriptions increases by 103.4% each month.
7 0
2 years ago
Determine if there was a percent increase or decrease in the number of trench coats sold, and by how much. (Round your answer to
nordsb [41]

The percentage of trench coats sold increased by 23. 3%. therefore, option D is correct.

<h3>What is the percentage?</h3>

A percentage is a minimum number or ratio that is measured by a fraction of 100.

First, we need to subtract the final from the initial, then divide the difference by the initial, then multiply your answer by 100 to get the percentage

the final is 127, and the initial is 103

127 - 103 = 24

24/103 = 0.233

0.233 x 100

= 23.3%

Thus, The percentage of trench coats sold increased by 23. 3%.

Learn more about percentages;

brainly.com/question/13450942

5 0
2 years ago
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