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3 years ago

PLEASE HELP MARKING BRAINLIEST

Mathematics

1 answer:

xeze [42]3 years ago

4 0

Answer:

a5 =243 x (1/3)^(5-1) = 243x 1/81 =3

Explanation

a(n) = a(1) x r^(n-1)

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Ronald wants to buy a shirt that is on sale for 25 % off the regular price of the shirt is p dollars . Which expressions represe

rewona [7]

The answer would be A. To find how much 25% of the original price is you have to do .25 multiplied by the price. Then you subtract the answer from the original price.

p - .25p

6 0

4 years ago

Please help giving lots of points!! Y varies directly with x. If

STALIN [3.7K]

Im gonna answer this in calculator form. It might be non-calculator but if y = 20.07 when x = 9, than u can divide 9 by 9 to get 1. 1 x 14 = 14. Now vise versa. 20.07 / 9 = 2.23. 2.23 x 14 = 31.22

= 31.22.

Thanks please heart because im depressed. bye

6 0

3 years ago

I need helpppppp i have no idea what im looking at lol

Y_Kistochka [10]

The correct answer is option B which is $SinA = \dfrac{4}{5}$ , $tanA = \dfrac{4}{3}$ , $SecA=\dfrac{5}{3}$ ,

$CosA=\dfrac{3}{5}$ , $CotA=\dfrac{3}{4}$ and $CscA=\dfrac{5}{4}$ .

<h3>What is trigonometry?</h3>

Trigonometry is the branch of mathematics which set up a relationship between the sides and angle of the right-angle triangles.

From the figure we can see that two sides are Ab = 15 cm and BC = 12 cm third side will be calculated by pythagorean theorem.

AC² = AB² - BC²

AC² = 15² - 12²

AC² = 81

AC = √81

AC = 9 cm

Now all the trigonometry identities are:-

$SinA =\dfrac{BC}{AB}=\dfrac{12}{15}= \dfrac{4}{5}$ ,

$tanA =\dfrac{BC}{AC}=\dfrac{12}{9}= \dfrac{4}{3}$ ,

$SecA=\dfrac{AB}{AC}=\dfrac{15}{9}= \dfrac{5}{3}$ ,

$CosA=\dfrac{AC}{AB}=\dfrac{9}{15}= \dfrac{3}{5}$ ,

$CotA=\dfrac{AC}{BC}=\dfrac{9}{12}=}\dfrac{3}{4}$

$CscA=\dfrac{AB}{BC}=\dfrac{15}{12}= \dfrac{5}{4}$ .

Therefore correct answer is option B which is $SinA = \dfrac{4}{5}$ , $tanA = \dfrac{4}{3}$ , $SecA=\dfrac{5}{3}$ , $CosA=\dfrac{3}{5}$ , $CotA=\dfrac{3}{4}$ and $CscA=\dfrac{5}{4}$ .

To know more about Trigonometry follow

brainly.com/question/24349828

#SPJ1

6 0

2 years ago

Given m∥n, find the value of x.

Dafna1 [17]

Answer:

x = 20

Step-by-step explanation:

The 2 given angles are alternate interior angles and are congruent, thus

7x - 3 = 6x + 17 ( subtract 6x from both sides )

x - 3 = 17 ( add 3 to both sides )

x = 20

3 0

3 years ago

What type of angle is CEB?

WITCHER [35]

Answer:

Obtuse

Step-by-step explanation:

CEB is and obtuse angle because it is wider than a right angle ( example: L )

3 0

3 years ago