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1 year ago

Can someone help with these 2 questions? I will mark the person who helped me brainiest

Mathematics

1 answer:

MatroZZZ [7]1 year ago

6 0

Answer:

Surface Area of Triangular Prism=444 m

Surface Area of Square Pyramid= 146 cm

Step-by-step explanation:

Hope this helps.

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Andrew solved the following inequality, and his work is shown below:

Nataly_w [17]

It’s B. When dividing by -2, he did not change the direction of the sign

3 0

2 years ago

If you divide any number by itself, what is the result? How can you apply this result to the expression -1×60/-1×10?

Alex73 [517]

Answer:

Step-by-step explanation:

Any number divided by itself is 1. In the expression-1 times -10 over -1 times -60 ,the -1s in the numerator and the denominator cancel each other out to give the result , or 6.

4 0

2 years ago

The weight of an object on a particular scale is 175.2 lbs. The measured weight may vary from the actual weight by at most 0.1 l

snow_lady [41]

Either 175.25 ( 175.2 + 0.1/2) or 175.15 ( 175.2 - 0.1/2) ----------> Range. 175.15 < weight < 175.25

5 0

2 years ago

Read 2 more answers

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

2 years ago

Please help me I will mark brainliest

masha68 [24]

Answer:

C) $58,544

Step-by-step explanation:

the yearly tuition is $58,830 minus her scholarship of $44,194 leaves her with $14,636 to come up with so $14,636 times 4 equals $58,544

she needs $58,544 to attend this university for four years.

hope this helps!

3 0

2 years ago

Read 2 more answers