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3 years ago

14

Which expression is represented by the diagram? ( Marked 1-4, I can't paste the question.)

1 answer:

wel3 years ago

8 0

Answer:

-6-(-1)

Step-by-step explanation:

Since all the boxes are negative, and there are 6 boxes, the first part of the equation is -6. Then since the last box is being taken away, we are subtracting it. The last box is still negative though so the last part is -1. Since -6 subtracted by -1 is -6-(-1), the answer is:

-6-(-1)

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What expression are equivalent to - (-5/3)

saw5 [17]

a is the answer to the problum !

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3 years ago

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5x + 3x - 2 = 22<br><br> Number only please.

sattari [20]

x=3

5x+3x-2=22

8x-2=22

8x=24

x=3

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3 years ago

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

Stolb23 [73]

Hello! My name is Chris and I’ll be helping you with this problem.

Date: 9/27/20 Time:

Answer:

x = -1

Explanation:

Step 1: Simplify both sides of the equation.

−2(x+3)=−4(x+1)−4

(−2)(x)+(−2)(3)=(−4)(x)+(−4)(1)+−4(Distribute)

−2x+−6=−4x+−4+−4

−2x−6=(−4x)+(−4+−4)(Combine Like Terms)

−2x−6=−4x+−8

−2x−6=−4x−8

Step 2: Add 4x to both sides.

−2x−6+4x=−4x−8+4x

2x−6=−8

Step 3: Add 6 to both sides.

2x−6+6=−8+6

2x=−2

Step 4: Divide both sides by 2.

2x = -2

/2 /2

x=−1

I hope this helped answer your question! Have a great rest of your day!

Furthermore,

Chris

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3 years ago

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Evaluate 5c+cd when c=1/5 and d=15

Ad libitum [116K]

5c = 1
cd = 3
5c + cd = 4

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3 years ago

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the hoover dam is 725 feet tall. how long would it take an object to fall from the top to the base of the dam? round the answer

Alinara [238K]

Answer:

45.05 seconds

Step-by-step explanation:

Use the formula: d = v $i$ t + $\frac{1}{2}$ a $t^{2}$

d = distance v $i$ = initial velocity (m/s)

t = time (s) a = acceleration (m/ $s^{2}$ )

m is meters and s is seconds. They are units of measurement so leave them be.

Assuming the object is simply dropped, the initial velocity is 0 since the object was not moving before it was dropped.

The distance is 725 feet, which is 220.98 meters.

The acceleration is 9.81m/ $s^{2}$ since that is the acceleration of Earth's gravity, aka free fall.

Time is what we are trying to find so just leave it as the variable t.

So plug the values into the equation:

220.98m = (0)(t) + $\frac{1}{2}$ (9.81m/ $s^{2}$ )(t)

220.98m = (4.905m/ $s^{2}$ )(t)

45.0519877676s = t

t = 45.05s

Remember to pay attention to units because your answer will be wrong otherwise

7 0

2 years ago