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Nitella [24]
2 years ago
11

Which expression is equivalent to 8+20 ? A. 4(4+20) B.4(2+5) C.2(2+10) D. 2(6+18) Find the missing fac or in the given expressio

n: 30+12= O(5 + 2)​

Mathematics
1 answer:
Firlakuza [10]2 years ago
6 0

Answer:

the expression that is equivalent to 8+20 is 4(2+5)

the missing factor in the expression 30+12=O(5+2) is 6

Step-by-step explanation:

Using PEMDAS, we have to multiply the number on the outside by the numbers within the parentheses. 4 x 2 = 8, 4 x 5 = 20. 8 + 20 equals 28.

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You want to calculate the displacement of an object thrown over a bridge. Using -10 m/s^2 for acceleration due to gravity, what
MrRissso [65]

<u>Answer</u>

<em>The total displacement of the object is 320 m</em>

<u>Solution-</u>

From the formulas of mechanics,

s=ut+\frac{1}{2}at^{2}

Where,

s = displacement

u = initial velocity = 0               ( ∵ As the body was in rest in the beginning )

t = time taken = 8 s

a = acceleration = -10 m/s²      ( ∵ -ve is because of the downward motion)

Putting all the values,

s= 0 \times 8 + \frac{1}{2}(-10)8^{2} = -320 \ m ( ∵ -ve displacement means it is in downwards)

5 0
3 years ago
Zachary travels on a journey of 50 miles. He spends half of
Mars2501 [29]
I divided 50 miles by 2 = 25 miles (walked) 25 miles (horseback)
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I divided 25 by 9 = 3
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7 0
2 years ago
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What is the smaller of the numbers 1 and -10/3
antiseptic1488 [7]

-10/3 is smaller and 1 is bigger.

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2 years ago
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The theater sells two types of tickets: adult tickets for $15 and
UkoKoshka [18]

Answer:

68

Step-by-step explanation:

Let x=adult tickets and y=child tickets

1) 15x+11y=1889

2) x+y=147

multiply equation 1 by -1/11 on both sides to get:

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add new equation with equation 2 to get

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Isolate x to get:

x=67.99999

Round up to get 68 adult tickets

6 0
3 years ago
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LenKa [72]

Answer:

194.5315427 grams

Step-by-step explanation:

The half-life of element x would be 66 years. So, after 20 years you would have:

.5^(20/66) x 240=0.810548 x 240

        =194.5315427 grams of the element left ......

3 0
2 years ago
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