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2 years ago

11

What is the justification for each step in solving the inequality?

1 answer:

Alik [6]2 years ago

4 0

75x+35≥7(11x+9)+475x+35≥7(11x+9)+4

75x+35≥77x+63+475x+35≥77x+63+4 [expand all blackets]

75x+35≥77x+6775x+35≥77x+67 [collect like terms]

−2x+35≥67−2x+35≥67 −2x≥32−2x≥32 [subtract 77x through]

x≤−16x≤−16 [subtract 35 through and divide through by 2]

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ASHA 777 [7]

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2 years ago

Can anyone pls ans this with clear steps

Sergio039 [100]

Answer:

Option C is correct

Step-by-step explanation:

<h3> $\frac{1}{2} (a + b)h$ </h3><h3>Hope it is helpful.....</h3>

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2 years ago

What is the answer to this?

katrin [286]

Answer:

$\huge\boxed{-28}$

Step-by-step explanation:

We can substitute the given values of $a$ , $b$ , and $c$ to find the value of this expression.

$-4 | a + b - c|$

$-4 | 3 + (-2) - (-6)|$

We know that <em>two negatives make a positive. </em>This means that $-2 - (-6)$ will be the same this as $-2+6$

$-4 | 3 + -2 + 6|$

Adding a negative is the same as subtracting a positive.

$\4 | 3-2+6|\\\\3-2+6 = 7$

$-4 \cdot 7 = -28$

Hope this helped!

7 0

2 years ago

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9. What is the tan(90-x)?

Aleonysh [2.5K]

$\\ \sf\longmapsto tanx=\dfrac{Perpendicular}{Base}$

$\\ \sf\longmapsto tanx=\dfrac{4}{3}$

$\\ \sf\longmapsto x=tan^{-1}(4/3)$

$\\ \sf\longmapsto x=53°$

$\\ \sf\longmapsto tan(90-x)$

$\\ \sf\longmapsto cotx$

$\\ \sf\longmapsto cot53$

$\\ \sf\longmapsto \dfrac{3}{4}$

$\\ \sf\longmapsto 0.75$

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1 year ago

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If a train travels at 80 mph for 12 min, what is the distance traveled?

AnnyKZ [126]

Answer:

<h2>ANSWER→ </h2>

16 miles
12 minutes is 1 /5 of a hour
80 ÷ 5 is 16
or 80x 1.466 =117.28 ft per second
12 minutes x 60 seconds is 720
117.28× 720= 84,441.6
84441.6÷ 5280= 15.992 miles.

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1 year ago

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