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tekilochka [14]

4 years ago

6

When are the absoulte value and the oppposites of a rational number equal

1 answer:

telo118 [61]4 years ago

4 0

Answer:

The opposite of a number is sometimes equal to the opposite of the absolute value of the number. When the number is positive or 0, the statement is true.

Step-by-step explanation:

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The length of the shadow of a pole on level ground increase 90m, when the angle of elevation of the sum changes from 58-38.calcu

bazaltina [42]

Answer: h = 137.4 metres

Step-by-step explanation:

Given that the length of the shadow of a pole on level ground increase 90m, that is, (x + 90)m will be the total length of the shadow. Also we are given that the angle of elevation of the sum changes from 58-38.

To calculate the height, we will employ trigonometry ratio. SohCahToa which are: tan 58 and tan 38.

Please find the attached files for the solution

8 0

4 years ago

RUDIKE [14]

Answer:

Test 1

1. 15.09, 15.90, 15.009, 15.909

ans) 15.009, 15.09, 15.90, 15.909

2. 26.006, 26.606, 2.606, 26.060

ans) 2.606, 26.006, 26.060, 26.606

3. 404.40, 40.404,4.404,404.4

ans) 4.404, 40.404, 404.4, 404.40

4. 54.06,54.6,54.64,54.61

ans) 54.06, 54.6, 54.61, 54.64

5. 3.87,3.087,3.875,3.807

ans) 3.87, 3.087, 3.807, 3.875

Test 2

1. 21.216, 21.612, 21.162, 21.621

ans) 21.162, 21.216, 21.612, 21.621

2. 435.9, 453.9, 45.93, 94.35

ans) 45.93, 94.35, 435.9, 453.9

3. 3.224, 2.432, 3.422, 4.322

ans) 2.432, 3.224, 3.422, 4.322

4. 80.17, 80.02, 80.3, 80.63

ans) 80.02, 80.17, 80.3, 80.63

5. 5.463,5.036,5.36,5.003

ans) 5.003, 5.036, 5.36, 5.463

I hope it helps.

3 0

2 years ago

How do you solve 3(2×+5)-(4×_9)

zhuklara [117]

Answer: 3(2×+5)-(4×9) = -15

Step-by-step explanation:

4 0

3 years ago

Solve for x: 3(x + 1) = -2(x - 1) - 4

shepuryov [24]

Answer:

x = -1

Step-by-step explanation:

3(x+1) = -2(x-1) - 4

3x + 3 = -2x + 2 - 4

3x + 3 = -2x - 2

Add the -2x to both sides

5x + 3 = -2

Subtract the 3 to both sides

5x = -5

Divide both sides by 5

x = -1

4 0

3 years ago

Leni [432]

$\longrightarrow{\green{ x\:=\:12}}$

$\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}$

$(x - 9) \frac{2}{3} = 2$

$➺ \: (x - 9) = 2 \times \frac{3}{2}$

$➺ \: x = 3 + 9$

$➺ \: x = 12$

Therefore, the value of $x$ is 12.

$\large\mathfrak{{\pmb{\underline{\blue{To\:verify}}{\blue{:}}}}}$

$(x - 9) \frac{2}{ 3} = 2$

$➺ \: (12 - 9) \frac{2}{3} = 2$

$➺ \: 3 \times \frac{2}{3} = 2$

$➺ \: 2 = 2$

$➺ \: L.H.S.=R. H. S$

Hence verified.

$\huge\bf\purple{*Mystique 35♡༉}$

6 0

3 years ago