Mathematics Middle School

Is this correct? (Correct me if im wrong and tell me what is wrong like the number!

Answers

Answer 1

Answer:

number 1 is wrong

Step-by-step explanation:

Related Questions

Use the table to write the slope-intercept equation of the line below.

Answers

Answer:

y=1/2x+5

Step-by-step explanation:

m= change in y over change in x; the y-value is going up by 1 every time; the x-value is going up by 2; change in x/change in y is 1/2

b= whatever value the y is when x is 0 is your y-intercept; when x is 0 y is 5

Keely's hair is 43 centimeters long. What is the length of Keely's hair in millimeters? Use the number of zeros of the product when multiplying a number by a power of 10 to help you. A) 43 millimeters
B) 4,300 millimeters
C) 430 millimeters
D) 4.3 millimeters

Answers

the answer is 430 hope this helps w

Answer:

430

Step-by-step explanation:

A millimeter is 10 times smaller than a centimeter

Which transformation is shown on the coordinate plane below?

Answers

Answer: A. Translation

Explanation: Translation is two of the same objects, but one switching their origin.

Answer:

Translation

Step-by-step explanation:

its the same figure on a different area of the coordinate plane

A flat-screen television costs $724.89 when it is new. The value of the television is expected to change by −12 3/5% per year. What is the expected value, to the nearest cent, of the television after 4 years?

Answers

653 no explanation needed it’s just 653

The solution is $ 422.98

The expected value of the television after 4 years is $ 422.98

What is exponential growth factor?

The exponential growth or decay formula is given by

x ( t ) = x₀ × ( 1 + r )ⁿ

x ( t ) is the value at time t

x₀ is the initial value at time t = 0.

r is the growth rate when r>0 or decay rate when r<0, in percent

t is the time in discrete intervals and selected time units

Given data ,

Let the initial amount of the television be x₀

The value of x₀ = $ 724.89

Now , value of the television is expected to change by -12 3/5 % per year

So , the exponential decay rate of the television is r = -12 3/5 %

The rate r = -63/5 %

The rate r = -12.6 %

The number of years t = 4 years

So , the exponential decay rate of the television after 4 years is calculated from the formula

x ( t ) = x₀ × ( 1 + r )ⁿ

Substituting the values in the equation , we get

x ( 4 ) = 724.89 ( 1 - ( 12.6/100 ) )⁴

On simplifying the equation , we get

x ( 4 ) = 724.89 ( 1 - 0.126 )⁴

x ( 4 ) = 724.89 ( 0.874 )⁴

x ( 4 ) = 724.89 x 0.583506543376

x ( 4 ) = $ 422.978

So , rounding to the nearest cent , we get

The value of x ( 4 ) = $ 422.98

Hence , The expected value of the television after 4 years is $ 422.98

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Help
Answer choices
A- Line A
B- Line B
C- Line C
D- Line D

Answers

line D hope this helps !

Line D definitely is the correct answer I know for sure it’s correct

Which equation will help you solve this problem?

You have 16 books and 2 shelves to store them.

If you split them equally between the 2 shelves, how many books will be on each shelf?

Answers

Answer:

8 books

Step-by-step explanation:

16/2=8

(/ is the division symbol)

Answer:

i literally salved this question earlier, the answer is 8

Step-by-step explanation:

(This is literally 7th grade math dude should be easy for most of you)
Last Season, A Lacrosse player scored 41 goals in 15 games, So far this season, the player has scored 24 goals in 9 games.

A. Does the player have a greater number of goals per game this season compared with last season?

(I think it is a no. If it is not no, explain)

B. Supposed the player plays in as many games this season as last season and continues to score at this season's rate. Write and solve A proportion to find the number of goals the player will score this season

Answers

Answer:

a. no b. 40.05

Step-by-step explanation:

a. to figure out the number of goals per game you have to divide the total amount of goals by the number of games:

last season: 41 ÷ 15 = 2.73

this season: 24 ÷ 9 = 2.67

as you can see the answer to the last season equation is higher than the this season meaning the player scored more goals last season.

b. we already know that the amount of games the player won each game (all of them supposedly being exactly even) is 2.67. so what we have to do is multiply it by 15 the supposed number of games the player is playing this season to get the total number of goals they will get for the entire season:

2.67 x 15 = 40.05 = the prediction of the total goals of the player

In triangle ABC, the measure of ∠ABC is 42°, and the measure of ∠BCA is 113º.
What is the measure of ∠CAB?

Answers

Answer:

25º

Step-by-step explanation:

Eliana drove her car 81 km and used 9 liters of fuel. She wants to know how many kilometers (x) she can drive on 22 liters of fuel. She assumes her car will continue consuming fuel at the same rate.

Answers

Answer:

I don't know

Step-by-step explanation:

thanks for the pints

Answer:

Step-by-step explanation:

to solve this we need to find the proportional relationship between the miles she can drive per liter of fuel, this can be found easily

we will use this quick formula to find how many miles a liter will give her as shown

81 / 9 = 9

this is the Miles per Liter or MPL, so the car drives 9 miles per liter of fuel, now all we have to do is multiply that new number by the amount of fuel she wonders about like so

9 * 22 = 198

with this, we now know that 22 liters will get her 198 miles down the road, quite the trip id say

this can be used to find the proportional relationship in most problems like this

hope this helped ya out :>

Benji borrows $1500 from a friend who charges him 10% interest. He pays the loan back in 18 months. How much interest did Benji owe his friend? Don't put a dollar sign, just enter the number.

Answers

Answer:

The answer is 2,700

It just said his friend charged him 10% interest. It didn’t mention how much he had to pay back over the 18 months. His friend isn’t a bank. 10% of $1,500 is $150. I would think he owed him $150 in total.
He would be a horrible friend if he charged him $2,700 to borrow just $1,500.

Find the Volume.

A.4620
B.5390
C.539
D.735

Answers

Answer:

Step-by-step explanation:

22x21x35 = 16 170

16 170 / 3 = 5390

Answer:

735

Step-by-step explanation:

35 times 21

= 735

Because u calculate the volume and it is base times height.

The Base is 21 and The Height is 35.

if -8x + 8 = 51, what does x equal?

Answers

Step-by-step explanation:

Given

- 8x + 8 = 51

- 8x = 51 - 8

- 8x = 43

x = - 43 / 8

Hope it will help :)❤

X= -43 / 8 Hope this helps!!!

help This is timed find x x/4 = 7

Answers

x = 28

so the answer is 28/4 = 7

Answer:

Step-by-step explanation:

x=2√7 or x=−2√7

1/4 2x

can you please show me how you do this problem im having trouble with it thanks!

Answers

Answer:

It's the second option

The formula for Area is A= 1/2bh ( b stand for base & h for height)

So it should be A= 1/2 (5) ( 2 1/2)

B formula for triangle is 1/2bh

Find the mean, median, mode, and range for the following data:

8, 6, 7, 5, 1, 21, 20, 5, 5, 17, 20, 16, 12

Mean:

Median:

Mode:

Range:

Answers

Answer:

Mean: 11

Median: 20

Mode: 5

Range: 20

Step-by-step explanation:

To find the mean, you add up all the numbers then divide it by how many numbers there are.

The median is the number that lays it the middle of the list of numbers.

The mode is the number reoccurring/ seeing the most on this list of numbers.

Finally range is subtracting the highest number from the lowest to find the difference.

I need help images below

Answers

Answer:

25.48 and 289.38

Step-by-step explanation:

if circumference=pi*diameter we can rearrange it with algebra from c=pi*d to say d=c/pi and plug in the values and get the answer. the second one we say since area=pi*r^2 and were given r we plug in the values to find the answer.

The person above me is correct

help me please one more

Answers

Answer: it's x,w I believe

Step-by-step explanation: I'm pretty sure they both have the same vertex

I think the answer is the one you already chose y,w

Wendell’s dog, Jordan, was getting in his way as he worked in the backyard. So, Wendell chained him to a pole. If the chain is 12 feet long, about how much area does Jordan have to walk around?

Answers

24 feet ( : I think.

Answer:

452.16 square feet

Step-by-step explanation:

Please see image below

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

I think

A lemur weighs 4.2 kilograms. How many grams does the lemur weigh? Use the number of zeros of the product when multiplying a number by a power of 10 to help you.

42 grams
42,000 grams
420 grams
4,200 grams

Answers

4.2 kilograms to grams is 4,200

Answer:

Hi i am in 1 grade but i hope it helps

Step-by-step explanation:

I think it is 4,200

God bless Brainliest to right answer

Answers

explanation:

C because Air cant move you unless Your weak

Answer:

C because Air cant move you unless Your weak

Step-by-step explanation:

Please help me with this! I will give brainliest!

Answers

1.
radius= 10
diameter= 20

circumference formula: C = 2•pi•r
circumference: 62.8

area formula: A = pi•r^2
area: 314

2.
radius= 6
diameter= 12

circumference formula: C = 2•pi•r
circumference: 37.68

area formula A = pi•r^2
area: 113.04

hope this helps!

Rolling 1 on a regular number cube 5 times in a row

Answers

Answer:25% chance

Step-by-step explanation:

PlEaSe TelL mE tHe AnSwEr..................................

Answers

Its 11 x 11. Just count by 11 or sum

Answer:

let hat be x

x×x=121

x²=121

x=√121

x=11

11 is your answer.

3in x 8in x 5in = ?

using cubic squares!!

Answers

Answer:

120in^3

Step-by-step explanation:

3*8*5=120

I believe this is what your looking for!

Have a good day and Good luck!

If this was useful, plz give me Brainliest! Thx

what does a cow use to cut the grass?

Answers

Is that the full thing?

Which line has the steepest slope? What would the value of y equal, if x = -2 for Line A
A) Line A; y = 7
B) Line A; y = 19
C) Line B; y = 7
D) Line B; y = 19
E) Not Given

Answers

Answer:

Step-by-step explanation:

I believe the answer to be (c)

What is 16x - 13y = 7 in slope intercept form?

Answers

y=16/13x-7/13
Here is your answer

Pls help its due in 10 mins plsss

Answers

Answer:

12 is 6 cm

Step-by-step explanation:

11) The scale factor is 3

how i got the answer: 12/4 = 3

12) value of n is 2cm

how i got the answer: 6/3 = 2

Find the area of the isosceles trapezoid below by using the area formulas for rectangles and triangles.
a = 10 cm, b = 15 cm, and c = 5 cm

A.
250 cm2
B.
175 cm2
C.
800 cm2
D.
200 cm2

Answers

The answer would be D

The area of the trapezium is 175 cm².

Option B is the correct answer.

What is a trapezium?

It is a quadrilateral that has one pair of parallel sides and a height.

The area is calculated as 1/2 x the sum of the parallel sides x height.

Examples:

Area of a trapezium that has the parallel sides as 3 cm and 4 cm and a heght o 5 cm.

Area = 1/2 x (3 + 4) x 5

Area = 1/2 x 7 x 5

Area = 35/2 = 17.5 cm^2

We have,

Parallel sides are b and (c + b).

b = 15 cm

c + b = 5 + 15 = 20 cm

Height = a = 10 cm

Now,

The area of the trapezium.

= 1/2 x (sum of the parallel sides) x height

= 1/2 x (15 + 20) x 10

= 1/2 x 35 x 10

= 35 x 5

= 175 cm²

Thus,

The area of the trapezium is 175 cm².

Learn more about trapezium here:

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