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1 year ago

Which graph shows the original figure rotated 180 degrees

Mathematics

2 answers:

Serjik [45]1 year ago

8 0

Answer:

I believe it would be B.

Step-by-step explanation:

Half a circle is 180 degrees, which is the location of option B. In other words you just rotate it halfway around and you'll find it at 180°.

Sphinxa [80]1 year ago

7 0

It should be B because 180° should transfer it to the opposite quadrant and change the signs of both x and y

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What is the value of fraction 1 over 3x3 + 5.4y, when x = 3 and y = 2? 13.8 16.8 19.8 28.8

Bond [772]

The answer is 16.8. Tell me if I'm right

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2 years ago

Which number has the greatest value? a) 0.38 b) 08.2 c) 02.8 d) 2.80

Elis [28]

Answer:

the correct answer would be b)8.2

Step-by-step explanation:

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2 years ago

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The sum of the digits of a 2-digit number is 10. If 18 is added to the number, the digits of the new number are those of the ori

Aliun [14]

Answer:

Step-by-step explanation:

Let $(ab)$ represent a number with $a$ in the ten's position and $b$ is the one's position.

This means $(ab)$ actually has value of $10a+b$ .

We are given the sum of those digits of $(ab)$ is 10; this means $a+b=10$ .

It says if 18 is added to the number $(ab)$ , then the result is $(ba)$ .

So $(ab)$ has value $10a+b$ and

$(ba)$ has value $10b+a$ .

We are given then:

$(ab)+18=(ba)$

$10a+b+18=10b+a$

Subtract $10a$ on both sides:

$b+18=10b+a-10a$

Simplify:

$b+18=10b-9a$

Subtract $b$ on both sides:

$18=10b-b-9a$

$18=9b-9a$

Divide both sides by 9:

$2=b-a$

Rearrange by commutative property:

$2=-a+b$

So the system of equations we want to solve is:

$a+b=10$

$-a+b=2$

-------------------------Add equations together (this will eliminate the variable $a$ and allow you to go ahead and solve for $b$ :

$0+2b=12$

$2b=12$

Divide both sides by 2:

$b=\frac{12}{2}$

Simplify:

$b=6$

If $b=6$ and $a+b=10$ , then $a=4$ . $a=4$ since 4+6=10.

So the original number is (46).

18 more than 46 is 18+46=(64) which is what we wanted.

We also have the sum of 4 and 6 is 10 as well.

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2 years ago

5 out of 20 students said ice cream was their favorite snack if they were a hundred six graders how many would chose ice cream P

Rufina [12.5K]

Answer:

25 students

Step-by-step explanation:

20 times 5 equals 100

5 times 5 equals 25

To get to 100 students you would times it by 5 and because we times'd the 20 times 5 we need to do the same to the 5 which would result in 25 students. Hope this helped! xx

4 0

1 year ago

A. Solve -4x - 4 = 4. Show your work. B. Verify your solution.

Yuliya22 [10]

Answer:

-4x=4+4

x=8/-4

x= -2

not sure how I'm supposed to verify

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2 years ago