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3 years ago

7. Does any rectangle rotate onto itself in less than a half-turn?

Mathematics

2 answers:

MAVERICK [17]3 years ago

8 0

Sure. If the rectangle is a square, then
it rotates onto itself in only 1/4 turn.

Galina-37 [17]3 years ago

6 0

I believe so because a full turn is 360 degrees correct so a half turn would be 180 and if you turn the rectangle 90 degrees twice it will be the cover the original rectangle but it would take the full half turn. so it depends on what the want if they mean less and it cant be 180 than the answer is no but if it can be on the half way marker it should be yes

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Whoops i forgot to read the lesson :P 30 points

andriy [413]

Step-by-step explanation:

I'll do 2.

Alright,Alex let say we have factored a quadratic into two binomial, for example

$(5x + 3)(6x - 4)$

If we set both of those equal to zero

$(5x + 3)(6x + 4) = 0$

We can used the zero product property in this case to find the roots of the quadratic equation.

This means that

$if \: ab = 0 \: then \: a = 0 \: and \: b = 0$

This means we set each binomal equal to zero to find it root.

$5x + 3 = 0$

$5x = - 3$

$x = - \frac{3}{5}$

$6x + 4 = 0$

$6x = - 4$

$x = - \frac{2}{3}$

So our roots are negative 3/5 and negative 2/3 using zero product property

6 0

2 years ago

A group of 31 friends gets together to play a sport. First, people

Umnica [9.8K]

The number of teams she can make is 10.

<h3>How many teams can she make?</h3>

Division is the process of putting a number into equal groups using another number. The sign used to denote division is ÷. Division is one of the basic mathematical operations. Other basic mathematical operations include addition, subtraction, multiplication.

The number of teams that can be made can be determined by dividing the total number of friends by the total number of players in each team. The whole number that is derived from the division process is the number of teams teams that can be made given the total number of friends and the number of people that have to be in each group.

Number of teams she can make = total number of friends / number of people in each group

31 / 3 = 10 remainder 1

So, only 10 teams can be made. one person would not be on any team.

To learn more about division, please check: brainly.com/question/13281206

#SPJ1

5 0

2 years ago

Write 8256 correct to 3 significant figures.

konstantin123 [22]

Answer:

8260 line over 6

Step-by-step explanation:

4 0

3 years ago

PLEASE help with this question

Tema [17]

Answer:

option A

12m/s

Step-by-step explanation:

Given in the question,

mass of object = 11kg

kinetic energy possess by = 792 joules

To find the velocity we use formula

v = $\sqrt{\frac{2KE}{m} }$

Plug values in the formula

v = $\sqrt{\frac{2(792)}{(11)} }$

v = $\sqrt{\frac{1584}{11} }$

v = $\sqrt{144}$

v= 12 m/s

3 0

3 years ago

The value of the expression is

elixir [45]

Answer:

P: parentheses (12 - 8) = 4

E: exponents (3^2) = 9

M: multiplication (12-8)/2 * 4 = 8

D: division (12-8)/2 = 2

A: addition (7 + 9 + 8) = 24

S: subtraction (blank)

Following the order of operations, our final answer is: 24

3 0

3 years ago

Read 2 more answers