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3 years ago

6y + 3y. Plssssssssssssssssss help me

Mathematics

2 answers:

Airida [17]3 years ago

7 0

This is very simple math let me show you:

Add similar elements:

6y + 3y = 9y

Your Answer Is 9y

plz mark me as brainliest :)

GuDViN [60]3 years ago

4 0

Answer:

Step-by-step explanation:

It's simple. Adding like terms. Let y represent anything you want. Lets just say for this case, y is equal to 5. So the equation would then be 6(5) + 3(5). Which equals 30+15=45. So when we go back to the 9y [9(5)]. It would be 9*5 which equals to 45. Hope that gave a brief overview and helped.

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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 $CscA=\dfrac{5}{4}$ .

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6 0

2 years ago

What is the relation between adjacent and congruent angles?.

AlladinOne [14]

Vertical angles are always congruent, which means that they are equal. Adjacent angles are angles that come out of the same vertex. Adjacent angles share a common ray and do not overlap. The size of the angle xzy in the picture above is the sum of the angles A and B.

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3 years ago

Slope of (-7,-2) (9,4)

Olenka [21]

Answer:

m= $\frac{3}{8}$

Step-by-step explanation:

1. Use the slope equation to solve the problem

$\frac{y_{2} -y_{1}}{x_{2} -x_{1} }$

2. Plug in your values into the equation.

$\frac{4-(-2)}{9-(-7)}$

3. Simplify the equation.

m= $\frac{3}{8}$

4 0

3 years ago

5. En el estado de Puebla sembraron 84,092

Nesterboy [21]

Answer:

128,158 hectáreas

Step-by-step explanation:

Aquí, en esta pregunta, nos interesa calcular las hectáreas totales de trigo que se sembraron entre los tres estados.

Para calcular esto, simplemente sumamos las hectáreas de trigo que se sembraron en cada uno de los estados.

Matemáticamente;

Eso sería; 84,092 + 42,634 + 1,432 = 128,158 hectáreas

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3 years ago

What is the area of a regular hexagon with an apothem 18.5 inches long and a side 21 inches

earnstyle [38]

The area of a regular hexagon with an apothem 18.5 inches long and a side 21 inches is 1, 165. 5 In²

<h3>How to calculate the area of a regular hexagon</h3>

The formula is given thus;

Area of hexagon = (1/2) × a × P

where a = the length of the apothem

P = perimeter of the hexagon

Given a = 18. 5 inches

Note that Perimeter, p = 6a with 'a' as side

p = 6 × 21 = 126 inches

Substitute values into the formula

Area, A = 1 ÷2 × 18. 5 × 126 = 1 ÷2 × 2331 = 1, 165. 5 In²

Thus, the area of the regular hexagon is 1, 165. 5 In²

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2 years ago