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2 years ago

Does anybody know what 8(11-3) -2(4+1) is

Mathematics

2 answers:

lina2011 [118]2 years ago

8 0

Its 58................

Soloha48 [4]2 years ago

6 0

8(11-3)-2(4+1)
\/ \/
8*8 2*5
\/ \/
64 - 10
\/
54

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Solve for w 3w-3+4=1-5w

defon

The answer to your question is 0.

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2 years ago

In a lab experiment, a student is trying to apply the conservation of momentum. Two identical balls, each with a mass of 1.0 kg.

muminat

Answer:

Trial- 2 shows the conservation of momentum in a closed system.

Step-by-step explanation:

Given: Mass of balls are $m= 1.0\ kg$

Conservation of momentum in a closed system occurs when momentum before collision is equal to momentum after collision.

Let initial velocity of ball $A\ is\ u_1$
Initial velocity of ball $B\ is\ u_2$
Final velocity of ball $A\ is\ v_1$
Final velocity of ball $B\ is\ v_2$
Momentum before collision $= mu_1+mu_2$
Momentum after collision $=mv_1+mv_2$

Now, According to conservation of momentum.

Momentum before collision = Momentum after collision

$mu_1+mu_2=mv_1+mv_2$

We will plug each trial to this equation.

Trial 1

$mu_1+mu_2=mv_1+mv_2\\1.0(1)+1.0(-2)=1.0(-2)+1.0(-1)\\1-2=-2-1\\-1=-3$

Trial 2

$mu_1+mu_2=mv_1+mv_2\\1.0(.5)+1.0(-1.5)=1.0(-.5)+1.0(-\.5)\\.5-1.5=-.5-.5\\-1=-1$

Trial 3

$mu_1+mu_2=mv_1+mv_2\\1.0(2)+1.0(1)=1.0(1)+1.0(-2)\\2+1=1-2\\3=-1$

Trial 4

$mu_1+mu_2=mv_1+mv_2\\1.0(.5)+1.0(-1)=1.0(1.5)+1.0(-1.5)\\.5-1=1.5-1.5\\-.5=0$

We can see only Trial 2 satisfies the princple of conservation of momentum. That is momentum before collison should equal to momentum after collision.

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3 years ago

A scale drawing showing the distance from your house to the school has a scale of 1.5 cm to 5 km. If the actual distance from yo

nasty-shy [4]

<u>1.5</u> cm <u>x </u> cm
5 km 30 km

cross multiply and divide-

1.5 x 30 = 5x
45 = 5x
divide each side by 5

x = 9 cm

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2 years ago

What is 1 2/25 as a decimal?

Elena-2011 [213]

Well, first of all, you have to change the mixed fraction to a proper fraction. So you have to multiply 25 by 1 and add the answer to 2, and use it as the numerator, with the denominator remaining the same. So;
27/25
As a decimal, this fraction will be 1.08. Hope i helped. Have a nice day.

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3 years ago

Samir works at a carpet warehouse and is paid a 4% commission on his sales. in November, he sold $9455 of carpet. How much did S

vovikov84 [41]

Answer:

$378.20

Step-by-step explanation:

9455 * .04 = $378.20

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1 year ago