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eduard
3 years ago
13

I really need help ;-;) pls explain this

Mathematics
1 answer:
pav-90 [236]3 years ago
8 0

Answer: A: 180= 90+4x+x

B: x=18

Step-by-step explanation:

1. Every triangle has a length of 180

2. So all the measurements combined would equal 180

3. So write the equation 180=90+4x+x

4. Let‘s simplfy, 180=90+5x

5. Subtract 90 from each side, 90=5x

6. Divide each side by 5, 18=x.

7. Double check our work! 90+(4*15)+18=180

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30 meter building casts a shadow the distance from the top of the building to the tip of the shadow is 37 M find the length of t
Pavlova-9 [17]

Answer:  22 meters

<u>Step-by-step explanation:</u>

Draw a picture of a right triangle and label the height as 30 meters and the hypotenuse as 37 meters.  Use the Pythagorean Theorem to find the base (the length of the shadow).

a² + b² = c²

x² + 30² = 37²

x²          = 37² - 30²

x²          = 1369 - 900

x²          = 469

√x²       = √469

        x = 21.656

        x ≈ 22

3 0
3 years ago
Point C is located 8 inches from point A and 6 inches from point B. Points A and B are 2 inches apart.
marshall27 [118]

Answer:

B

Step-by-step explanation:

4 0
2 years ago
Can someone solve and explain how to do these absolute equations for 40 points? I'll give brainliest to the best correct answer.
irga5000 [103]

Answer:

Explanation Below

Step-by-step explanation:

1.    -4 + | x - 1 | = 3

= -4 + | x - 1 | + 4 = 3 + 4

= | x - 1 | = 7

= x - 1 = -7     or    x - 1 = 7

= x = -6 or x = 8

2.   6 + 4 | 2x + 6| = 14

 = 6 + 4 | 2x + 6 | - 6 = 14 - 6

 = 4 | 2x + 6 | = 8

 = 4 | 2x + 6 | / 4 = 8/4

 = 2x + 6 = -2          or         2x + 6 = 2

 = x = -4    or     x = -2

3.  -10 + | -6 - x | = 1

  = -10 + | -6 + x | + 10 = 1 + 10

  = | -6 - x | = 11

  =  -6 - x = -11     or   -6 - x = 11

  = x = -17        or       x = 5

4.    | 7 - 2x | + 4 = 5

   = | 7 - 2x | + 4 - 4 = 5 - 4

   = | 7 - 2x | = 1

   = 7 - 2x = -1            or             7 - 2x = 1

   = x = 3       or   x = 4

Here are the Steps:

SOLVING EQUATIONS CONTAINING ABSOLUTE VALUE(S)

Step 1: Isolate the absolute value expression.

Step2: Set the quantity inside the absolute value notation equal to + and - the quantity on the other side of the equation.

Step 3: Solve for the unknown in both equations.

Step 4: Check your answer analytically or graphically.

Hopes this Helps :D

Mark me Brainliest : )

4 0
2 years ago
A circle has a circumference of 907.46.<br> What is the diameter of the circle?
Anna007 [38]

\bf \textit{circumference of a circle}\\\\ C=\pi d~~ \begin{cases} d=diameter\\[-0.5em] \hrulefill\\ C=907.46 \end{cases}\implies 907.46=\pi d\implies \cfrac{907.46}{\pi }=d \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill 288.85\approx d~\hfill

7 0
3 years ago
3/5 and 0.4. Which number is the smallest?
jeyben [28]
0.4 is the answer, 3/5= 0.6
6 0
3 years ago
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