3 years ago

REALLY NEED HELP!!! PLZ

Mathematics

1 answer:

Advocard [28]3 years ago

7 0

Take a pic of whole page so I can see instructions

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Select the correct answer

bulgar [2K]

The answer is b bc it’s all real numbers since it won’t stop

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3 years ago

Math help please!!!!!!!!!!!!

KonstantinChe [14]

The answer to the question is B

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3 years ago

What is the speed (approximately) of a 2.5-kilogram mass after it has fallen freely from rest through a distance of 12 meters?

Norma-Jean [14]

Answer:

15.3 m/s

Step-by-step explanation:1) Find the gravitational potential energy using the equation :

$PE_g=mgh$

$PE_g=2.5(12)(9.8)\\PE_g=294$

2) Then use the equation for kinetic energy to solve for the velocity:

$KE=\frac{1}{2} mv^{2}$

$294=\frac{1}{2}(2.5)(v^2)\\235.2=v^2\\\sqrt{235.2} =v\\15.3 m/s=v$

6 0

2 years ago

Which of the following situations have a net sum of 0? Select three that apply.

statuscvo [17]

Answer:

B,C,E

Step-by-step explanation:

Done this before. A is the first and so on and so forth

7 0

2 years ago

Read 2 more answers

Which of the following is a solution of x2 + 2x + 4?

RideAnS [48]

Answer:

option-D

Step-by-step explanation:

we are given

$x^2+2x+4$

Let's assume it is equal to 0

$x^2+2x+4=0$

We can use quadratic formula

Suppose, we are given quadratic equations as

$ax^2+bx+c=0$

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

we can compare and find a,b and c

a=1 , b=2 , c=4

now, we can plug values

and we get

$x=\frac{-2\pm \sqrt{2^2-4\cdot \:1\cdot \:4}}{2\cdot \:1}$

now, we can simplify it

and we get

$x=-1+\sqrt{3}i,\:x=-1-\sqrt{3}i$

6 0

3 years ago

Read 2 more answers