Mathematics Middle School

Help Please I will give brainliest and 16 points!!!

Answers

Answer 1

Step-by-step explanation:

When you rotate points of a figure 180° about the origin, every x-value and y-value is switched to its negative.

For example, (x, y) => (-x, -y).

E(1, 2) => E'(-1, -2)

F(1, 3) => F'(-1, -3)

G(4, 3) => G'(-4, -3)

H(4, 2) => H'(-4, -2)

Related Questions

Help me!!! 7th-grade math

Answers

I solved it and the explanation was horrible. Then I used a proffesional sight and it said there's no equation (┬┬﹏┬┬)

Welp- sorry kid

Your answer would be 4x - 20 I think

can anyone help?! im stuck on this question...

Answers

They have 12 games left

Which of the following values for x is true for 4x > 10

x = 34

x = 2

x = 2.5

x = 3
help!

Answers

Answer:

2.5

Step-by-step explanation:

its just 4 x x so you just times 2.5 by 4

Answer:

you can put 34 or 3 your choice!

Step-by-step explanation:

Ok so how you would find this out is first you put 4(x)>10

and you'll swap out the x for each number choice and 2.5 is the one that fits...

4(34)>10 = 136>10 yes

4(2)>10 = 8>10 well no bc 8 is less than 10

4(2.5)>10 = 10 = 10 not 10>10 so no

4(3)>10 = 12>10 yes

ALWAYS REMEMBER WHEN DOING THIS THE "ALLIGATOR" (WHICH IS THIS THINGY >) ALWAYS OPENS ITS MOUTH TO THE BIGGER NUMBERS

ex: 10>5 and 5<10

-ANSWER CORRECTLY

-DO NOT ANSWER IF YOU DO NOT KNOW

-DO NOT COPY AND PASTE YOUR ANSWER

-DO NOT COPY OTHER PEOPLE

Answers

Answer:

the third one, (4,5)

Step-by-step explanation:

4+1 >4

5+1>4

Answer:

it is 4,5

Step-by-step explanation:

when you substitute 4 for n you get this:

n + 1 > 4

4 + 1 = 5

5 > 4

When you substitute 5 for n you get this:

n + 1 > 4

5 + 1 = 6

6 > 4

HOPE THIS HELPS! LEAVE A THANKS AND 5 STAR RATING PLZ

Students surveyed boys and girls separately to determine which sport was enjoyed the most. After completing the boy
survey, it was determined that for every 3 boys who enjoyed soccer, 5 boys enjoyed basketball. The girl survey had a
ratio of the number of girls who enjoyed soccer to the number of girls who enjoyed basketball of 7:1. If the same
number of boys and girls were surveyed and 90 boys enjoy soccer, how many girls each sport?

Please help me and show how to solve this the best answer will get brainlesest

Answers

okay, let's go!
1. for the boys, 3 soccer is 5 basketball (in a group of 8 students).
2. for the girls, 7 soccer is 1 basketball (in a group of 8 students)
3. the question mentions 90 boys like soccer, which means we increased the number of boys surveyed 30x, since 3 times 30 is 90. now, we need to increase the girl numbers by 30 as well, giving us 210 girls who like soccer for every 30 who like basketball.

NEED ANSWERS ASAP 10 QUESTIONS IF RIGHT WILL GIVE BRAINLIEST

Answers

Sorry couldn’t do 2 but did the other 3

Find the area of each shaded region please help i just need help with C and D

Answers

Answer:

Step-by-step explanation:

I’m pretty sure that the answer is 78

simplify the exponential expression:
(2x^2y^4)^3

Answers

Answer:

8x^6y^12

Step-by-step explanation:

Hope that's right!!

Answer:

8x^6y^12

Step-by-step explanation:

I did this before

Collect like terms to simply the expression

3r + (-3r) =

Blank 1:
Question 8 (1 point)
Collect like terms to simplify the expression

2j + (-9j) =

Blank 1:
Question 9 (1 point)
Collect like terms to simplify the expression

12 + 4b - 3 + 2c =

Blank 1:
Question 10 (1 point)
Collect like terms to simplify the expression

7y + 8 - 2y + 4 =

Blank 1:
Question 11 (1 point)
Collect like terms to simplify the expression

2a + 3b - 3a + 4c - b =

(This is not the same as the question before. Look closely.)

Blank 1:
Question 12 (1 point)
What is the perimeter of this triangle (in simplest form)?

Your answer should not have parentheses or multiplication symbols !

Blank 1:
Question 13 (1 point)
Which TWO expressions below are equivalent? (Make sure to click TWO answers !)

a
2(x - 5) + (-7)
b
2x - 17
c
2x - 12
d
x + (-7) + x + 5
e
x + (-7) + (-10)
Question 14 (1 point)
What shows the proper factoring of this expression?

4d + 24

a
4(d + 6)
b
2(d + 12)
c
4d(4 + 6)
d
6(d + 4)
Question 15 (1 point)
What is the proper factoring for this expression?

50 + 25x + 75y

a
75(x + y)
b
25(2 + x + 3y)
c
25(2 + 2x + 3y)
d
25(x + 3y)
Question 16 (0 points)
How confident do you feel about your ability to master this material by January 19?

(Don't worry--by the time we get to the first quiz, you will have had many chances to practice the ideas from this pre-test.)

a
Very confident
b
Pretty confident
c
A little confident
d
Not very confident

Answers

Answer:

1=0 2

Step-by-step explanation:

1= 0 2 is your answer heheehe

Please help I need text evidence so please include that in your response I will give you brainlest if you have. Good detailed answer I’m sorry if this is a lot to ask for the story is freak the mighty btw

Answers

Answer:

cite,evidence,cite,evidence, summary it basically means answer the question give evidence from the story explain do it again and then sum up your writing, i hope this is right.

Step-by-step explanation:

please help ill give brainliest

Answers

Answer:

divide by -3 and reverse it

Step-by-step explanation:

Trust me I got u fam

Answer:

divide by -3 and reverse

Stefan sells Jin a bicycle for $163 and a helmet for $17...

Answers

Answer:The answer is Stefan spent originally$110.00 on both originally.

* Hopefully this helps:)

180$ he made by bike and helmet

can anyone help? I need an answer fast!?

Answers

Answer:

0.2x + 5 >2

Step-by-step explanation:

0.2x + 5 >2

1/5 x > -3

x > -15

Write the answer as a mixed number fraction (if possible).
8 1
5
÷
7 1
2

Answers

Answer:

3 May be right answer in This question

the answer is 162/355
to divide by a fraction, multiply by the reciprocal of that fraction

What type of triangle is this triangle?

acute scalene

obtuse isosceles

obtuse scalene

acute isosceles

Answers

Answer:

Obtuse scalene

Step-by-step explanation:

Answer:

obtuse scalene

Step-by-step explanation:

Scalene means that none of the sides are equal.

Isosceles means that two of the sides are equal.

Obtuse means an angle in the triangle is larger than 90 degrees.

Acute means all angles in the triangle are smaller than 90 degrees.

None of the sides are equal so this triangle has to be scalene and the angle in the bottom right is larger than 90 degrees so this triangle is obtuse.

Hope this helps! :)

Solve for the “x”

X+ 35= 19

Answers

Answer:

x= -16

hope it helps...

Answer:

x=-16

Step-by-step explanation:

19-35=-16=x

Which number in the following equation represents the coefficient?

7y + 2 = 23

Answers

Answer:

Step-by-step explanation:

The coefficient is the number used to multiply a variable.

Y is the variable and 7 is the coefficient.

Answer

y=3

Step-by-step explanation:

21/7=3

7 times 3 = 21

21 +2=3

Write an algebraic expression to represent: A number (n) added to 7

Write an algebraic expression to represent: The difference of 12 and a number (x)

Answers

Answer:

7+n

x-12

i think this is right

The first algebraic expression is n+ 7

The second algebraic expression is 12 - x

A salesperson at a jewelry store earns 8% commission each week....

Answers

Answer:

heidi earned $56 in commision.

hyou take the amount the jewerly store made, 700 in this case and divide it by 100, to find what 1% is. so 1% is 7$, multiply that by 8, since she makes 8% and that ur answer

Step-by-step explanation:

Ok so 700x0.8 will give 80% and divided by 10=8% the salesperson will earn $56 the total is out of 100,100-8= the amount the jewelry store gets meaning the remaining of the $700,700-56=644. To conclude the salesperson will get $56 and the jewelry store will get $644. Hope this helps :)

find the volume of the cylinder.

Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi.

units^3

3

Answers

Answer: pie r^2 h

where pie is 3.143... , or 14

r- radius

h- height

Step-by-step explanation:

suppose let the cylinder height =3 and radius =4

volume of cylinder =pie*r^2*H

= 3.143*4^2*3

=150.864 m^3

Jada bikes x miles to the park and a quarter of that again. How far does Jada bike

Answers

Answer: is that all the question

Step-by-step explanation:

Answer: 1.25x

Step-by-step explanation: x + 1/4 of x = = 1.25x

Find the perimeter.

36 cm
24 cm
33 cm
30 cm

Answers

Answer:

36 cm

Step-by-step explanation:

p = all sides added up

so we do 6+6+3+3+9+9 = 36 cm

I agree36 should be the correct answer it's just adding.

can some one help me

Answers

Answer : x = 15

Explanation :

180-106= 74

74=6x-16

74+16 =6x

90=6x

x=15

Answer:

Step-by-step explanation:

6 x (-(16 degrees)) =

-1.67551608 rad

What is the x-coordinate of point B? Write a decimal coordinate.

On a coordinate plane, point B is 1.5 units to the left and 3.5 units up.

Answers

Answer:

(-1.5,3.5)

Step-by-step explanation:

Starting from the Origin move 1.5 left equals -1.5 and 5 units up is 3.5 so, my answer is (-1.5,3.5).

Answer:0.5

Step-by-step explanation:

Suppose an exponential function, f(x), models the amount of money in a savings account after x years. What is the most appropriate domain of this function?
A. real numbers
B. rational numbers
C. positive integers
D. positive rational numbers

Answers

Answer:

Step-by-step explanation:

Will award brainliest

Answers

Infinite solution Bc both sides are equal

Students in a science class investigated how the speed of sound changes with the air temperature outside. The data are shown in the scatterplot.

Based on the scatterplot, what is the best prediction of the speed of sound when the air temperature is 45°C?

350 m/s

355 m/s

360 m/s

365 m/s

Answers

Answer:360 m/s

Step-by-step explanation:

The best prediction of the speed of sound when the air temperature is 45°C is 360 m/s option third is correct also the graph shows a positive correlation.

What is correlation?

It is defined as the relation between two variables which is a quantitative type and gives an idea about the direction of these two variables.

As we can see in the graph:

When the air temperature is 10°C the speed of sound is around 337m/s

When the air temperature is 20°C the speed of sound is around 344m/s

When the air temperature is 30°C the speed of sound is around 348m/s

When the air temperature is 40°C the speed of sound is around 355m/s

From the above observation, the air temperature increases the speed of the sound increases.

So when the air temperature reaches 45°C the speed of the sound will be 360 m/s.

Thus, the best prediction of the speed of sound when the air temperature is 45°C is 360 m/s.

Learn more about the correlation here:

brainly.com/question/11705632

#SPJ2

can some one help me i have no idea what this is

Answers

Answer:

b=-25

Step-by-step explanation:

10= -2/5b

------ -------

-2/5 -2/5b

b=-25

Check:

-2/5(-25)=10

10=10

Answer:

b=-25

Step-by-step explanation:

(repost) Help Me Please I Will Give Brainliest If Correct!!

Answers

Answer:

the decimal to aproximate is 0.00000000305

Step-by-step explanation:

closest aproximation is 0.000000003

3 x 10-9 the -9 is above the 10

Answer:3.05 x10^9

Step-by-step explanation:

Monica put 1 liter, 2 deciliters, 6 centiliters, and 9 milliliters of water into a bowl.

How many milliliters of water did she put in the bowl?

Answers

Answer:

1269

Step-by-step explanation:

convert and add

Answer: 1267. Explanation you just add and divide

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