MATHEMATICS HIGH SCHOOL

If A boy leaps over a rock, What is the equal and opposite force for theforce of the boy pushing on the ground as described by Newton's third
law?

Answers

Answer 1

Answer:

Answer: normal force of the ground pushing the boy up

Answer 2

Answer:

Answer:

the normal force of the ground pushing the boy up

Step-by-step explanation:

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Solve 3(x-4)= -5 for x.
The Canadian $2 coin has a copper centre surrounded by a ring of nickel. The diameter of the coin is 2.8 cm. The area of the copper centre is 2.0 cm2 . What is the area of the nickel ring

3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5.

Answers

ok so from experience on this site
3x2=3x^2
people don't know how to put exponents
3x^2-y^3-y^3-z
simplify first

3x^2-2y^3-z

x=3
y=-2
z=-5
3(3^2)-2(-2)^3-(-5)
3(9)-2(-8)+5
27+16+5
48

Write an equation in point-slope form for a line that passes through ( 4, 2) and has a slope of -7.

Answers

Equation= y-2=-7(x-4)

Express "a number x plus the square root of a number y" as an algebraic expression

Answers

Answer:

x + √y

Step-by-step explanation:

A number x plus the square root of a number y

There are two variables involved

Variable x

Variable y

Plus means addition

Square root of y can be written as

√y

A number x plus the square root of a number y can be written as

x + √y in algebraic expression

The answer is x + √y

What is 20% of 90 with the work?

Answers

What you want to do is convert 20% into a decimal. Then you multiply that by 90. So, if 20% was a decimal(In this case it is 0.2) you do 0.2*90 which equals 18. So the answer is 18.

the easy way is:

covert 20% as a fraction

20/100=x/90 and solve it.

the answer is.... 18

What is 2+x/5+x=7/8?