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2 years ago

A skateboard ramp forms a 42º angle as shown. Find the value of x.

Mathematics

2 answers:

VladimirAG [237]2 years ago

8 0

Answer:

138° would be the value of x

Step-by-step explanation:

the whole line we are looking at is 180° because it is a straight line, so I subtracted 42 from 180 (180-42) and that gave me 138°

please let me know if this answer is inncorect and i will remove it, good luck!

(if this correct please mark brainliest <3

Firlakuza [10]2 years ago

5 0

Answer:

138/6=23

Step-by-step explanation:

Basic Equation for 180 angle.

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Surface area of this right prism

Sphinxa [80]

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

$\textsf{Let's calculate the surface area of given right prism}$

$\textbf{Area of Triangles :}$

$\sf{\dfrac{1}{2}\cdot 16\cdot 12}$

$\sf{8×12}$

$\sf96 \: \: cm {}^{2}$

$\textsf{Since there are two triangles, }$

$\textsf{Area of Triangles = 96 × 2 = 192 cm²}$

$\textbf{Now, calculate the Areas of rectangles :}$

$\textsf{Area - 1 = 12 × 10 = 120 cm²}$

$\textsf{Area - 2 = 16 × 10 = 160 cm²}$

$\textsf{Area - 3 = 20 × 10 = 200 cm²}$

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$\textsf{120 + 160 + 200 + 192}$

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2 years ago

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What integer increased by - 12 is 28?

guajiro [1.7K]

Answer:

Step-by-step explanation:

Let n represent the integer. Then the increase can be written as ...

n + (-12) = 28

We can add 12 to both sides of this equation:

n + (-12) + (+12) = 28 +12

n + 0 = 40 . . . . . . -12 and 12 total to zero; 28 and 12 total to 40.

n = 40

The integer is 40.

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2 years ago

What is the value of x if the sides of a equilateral triangle are x+9 , 3x-9 , and 2x

Yakvenalex [24]

Answer:

x=9

Step-by-step explanation:

The triangle is equilateral which means the sides are equal.

x+9 = 2x

Subtract x from each side

x+9-x = 2x-x

9 =x

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2 years ago

What is the slope of a line that is perpendicular to the graph of y = –3x?

Morgarella [4.7K]

Step-by-step explanation:

Hey there!

The equation is; y= -3x

or, 3x+y = 0.......... (I)

From equation (I)

$slope(m1) = \frac{ - coeff. \: of \: x}{coeff. \: of \: y}$

$m1= \frac{ - 3}{1}$

Therefore, m= -3

Now, As per the condition of perpendicular lines;

M1*M2 = -1

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M2= -1/-3

Therefore, the slope of a line which is perpendicular to the equation is; 1/3.

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2 years ago

1. Solve for the variable. x - 4.5 = 11.3

polet [3.4K]

Answer:

15.8

Step-by-step explanation:

do 11.3 + 4.5 = 15.8

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2 years ago

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