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2 years ago

A new Smart TV is on sale for $760.89. To round this to the nearest dollar, the digit in the tenths

Mathematics

1 answer:

Vikki [24]2 years ago

7 0

The digit in the tenths place is 8.

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Which of the following best describes a three-dimensional solid made from a pile of similar circles that grow smaller as the sol

Bad White [126]

Your answer is D) Cone

3 0

4 years ago

You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal mass (3,000 kg each)

Kazeer [188]

Answer:

1) Kinetic energy of the truck 1 is 600,000 joules.

Kinetic energy of the truck 2 is 1,837,500 joules.

2 a)Potential energy of truck 1 is 646,800 Joules.

b) Energy lose by the truck 1 just got converted into heat and sound energy during the collision.

Step-by-step explanation:

Mass of the truck 1 and truck 2,m = 3000 kg

Velocity of the truck 1, $v_1$ = = 20 m./s

Velocity of the truck 2, $v_2$ = 35 m./s

1. Kinetic energy of the truck 1: $\frac{1}{2}mv_{1}^2=\frac{1}{2}\times 3000 kg\times (20 m/s)^=600,000 joules$

Kinetic energy of the truck 2: $\frac{1}{2}mv_{2}^2=\frac{1}{2}\times 3000 kg\times (35 m/s)^=1,837,500 joules$

2.a) Energy loose by the truck 1:

Initial height of the truck on the hill = 22 m

At that height potential energy will be maximum:

Potential energy of truck 1 at that height = $mgh=3000\times 9.8 m/s^2\times 22 m=646,800 Joules$

b) Energy lose by the truck 1 just got converted into heat and sound energy during the collision.

3 0

4 years ago

How do I do it and show my work along with it?

Rudiy27

Be kind and say please,that is being rude when you don't say it. Well, how much times does 6 go into 34? 5 times right. So then put 30 under the 34. You get 4. So then bring down the 5. How much times does 6 go into 45. 7 right. So then put 42 under 45. You get 3. Now add a decimal point after the 5 and after the 7. Add zero after the 5 . Bring down the zero. How much times does 6 go into 30? 5 times, so you put 30 under 30 and get zero. If you have any more questions,please leave them below in the comments.

8 0

3 years ago

Shoe size and grade point average

sergey [27]

Answer:

Mild correlation.

Step-by-step explanation:

Girls tend to have smaller feet and so smaller shoe sizes and they tend to score better at school.

7 0

3 years ago

A hockey stick cost $79. How much will Steven save if he has a coupon for 20% off.

inn [45]

your answer is 15.8 (im pretty sure)

6 0

4 years ago