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3 years ago

I really need the answer please the question 2 and 3 plz

Mathematics

1 answer:

Lena [83]3 years ago

7 0

Answer:

Step-by-step explanation:

If angle A = 4x + 12 and x is given as 15 we can say that angle A is an acute triangle because its measure is less than 90° ➡ 4 × 15 + 12 = 72°

if the angle BAM is a right triangle then

4x + 22 = 90 subtract 22 from the both sides

4x = 68 divide both sides by 4

x = 17

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suppose you are headed toward a plateau 58 meters high if the angle of elevation to the top of the plateau is 20° how far are yo

vaieri [72.5K]

Answer:

159.35 meters

Step-by-step explanation:

-We use the law of Sines to calculate the distance to the plateau's base.

-The angle of depression (90-20=70°) corresponds to this distance:

$\frac{a}{Sin \ A}=\frac{b}{Sin \ B}\\\\\frac{58}{Sin \ 20\textdegree}=\frac{x}{Sin \ 70 \textdegre}\\\\x=Sin \ 70\textdegree\times 58/Sin \ 20\textdegree\\\\=159.35\ m$

Hence, the distance to the base is 159.35 meters

7 0

3 years ago

13. Which is the range of the relation

Fittoniya [83]

The range is all y-values.

In the relation, all the y-values are in the

second row.

-2, -1, 0, 1, 2

Therefore, the answer is B.

Best of Luck!

8 0

3 years ago

Please help worth 10 points and I’ll mark as brainiest

Helen [10]

Answer:

1.666666667

Step-by-step explanation:

7 0

3 years ago

Helppppppppppppppppppppp 9x(x+6)–(3x+1)^2=1

mel-nik [20]

Answer:x=1/24

Step-by-step explanation:

To find 9x(x+6)-(3x+1)^2=1

Open the brackets

9x^2+54x-(3x+1)(3x+1)=1

9x^2+54x-(9x^2+6x+1)=1

9x^2+54x-9x^2-6x-1=1

54x-6x-1=1

Collect like terms

48x=1+1

48x=2

Divide through by 48

x=2/48

x=1/24

4 0

4 years ago

Multiple choice! please show how u got the answer

mafiozo [28]

${ \qquad\qquad\huge\underline{{\sf Answer}}}$

The only order pairs among the given options that represent a function is :

(9 , -3) , (9 , -1) , (9 , -1)

Because : To be a function, every element of domain (x) can have only one unique value y, and if we get more than two values of y for same x, it isn't a function at all.

5 0

2 years ago