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3 years ago

Evaluate the expression below. 20 – ||–13| + 17|

Mathematics

2 answers:

ratelena [41]3 years ago

4 0

Answer: -10

Step-by-step explanation:

The absolute value function |x| basically gives the non-negative values for x, where w be any real number.

The given expression : $20-||-13|+17|$

Since -13 is written in an absolute form , so |-13|=13

Then, the above expression becomes , $20-|13+17|=20-|30|$

Since 30 is already a positive number , so |30|=30

Then, the above expression becomes , $20-30=-10$

Hence, the final answer will be -10 .

Vladimir [108]3 years ago

3 0

Answer:

The answer would be -10

Step-by-step explanation:

Reason would be that since -13 is surrounded by the symbol, you would make it positive 13, then add 17 to get 30. from there you can subtract 30 from 20 to get -10.

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I need help the answers that are there are

Soloha48 [4]

$\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the Congruency of triangles,

since here, two sides with a in between angle is congruent, we will use the SAS congruency,

=> Side-Angle-Side congruency .

SAS.

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3 years ago

A sky jump makes an angle of 27° with respect to the water as shown below. How are the 27° angle and the unknown angle related?

Shtirlitz [24]

Answer:

153

Step-by-step explanation:

The figure shows a right triangle with acute angle of 27°, this angle is the angle between the water level and the ski ramp.

It is also shown the suplementary angle 27° marked as X°, which is the angle that you must determine.

In the figure is clear that x is the exterior angle of the corner with the angle of 27° and that X° + 27° = 180°.

Then you can solve for X.

X = 180° - 27° = 153°.

Answer: 153°

Read more on Brainly.com - brainly.com/question/2898898#readmore

4 0

4 years ago

Two supplementary angles are in the ratio 2:7. Find the measure of the Acute angle.

Black_prince [1.1K]

Answer:

y=42.3333333333 (repeating)

Step-by-step explanation:

You need to find the corresponding side. You can see D H is corresponding to E C. So here is what you have to do, find x to (8x - 43) and (2x + 13).

2x + 13 + 8x - 43= 90

10x -30 = 90

+30 +30

10x = 120

/10 /10 = 12

to check if this is right take x which is 12 and plug it in.

8 x 12= 96 then 96 - 43= 53

2 x 21= 24 then 24 + 13= 37

Next you take 53 and 37 and add it together

53 + 37= 90

about that corresponding side, now you know D H and E C both equal 53

Now you can solve your equation.

53 + 2y + y= 180

53 + 3y = 180

-53 -53

3y = 127

/3 /3

y = 42.333333 (repeating)

to check if this is right take y which is 42.3333333 (repeating) and plug it in.

2y means to multiply y two times so...

42.3333333 (repeating)+ 42.33333333 (repeating)= 84.6666666 (repeating)

y = 42.333333333 (repeating)

E C = 53

add all the numbers together

42.333333 (repeating) + 84.66666666 (repating)+ 53= 180

Therefore y equals 42.33333333 (repeating)

6 0

4 years ago

If 223x=78,find x. If 223x=78, find x

Maslowich

Answer:0.3273542601

Step-by-step explanation:

73÷223=0.3273542601

6 0

4 years ago

Simplify.<br><br> n 6 · n 5 ÷ n 4 · n 3 ÷ n 2 · n

trasher [3.6K]

Answer: $n^{9}$

Step-by-step explanation:

Given expression: $n^6\cdot n^5\div n^4\cdot n^3\div n^2\cdot n$

The law of exponents are given by :_

$a^m\cdot a^n=a^{m+n}\\\\a^m\div a^n=a^{m-n}$

Using PEDMAS, first we solve division, we get

$n^6\cdot n^{5-4}\cdot n^{3-2}\cdot n\\\\=n^6\cdot n\cdot n\cdot n$

Now, using product law of exponent we get

$n^{6+1+1+1}\\\\=n^{9}$

7 0

3 years ago

Read 2 more answers