MATHEMATICS MIDDLE SCHOOL

Explain why you cannot complete this equation using only +1s and -1s

(+1) +_+_+_=(+1)

Answers

Answer 1
Answer: you cannot because this equation doesn't need it

Related Questions

What integer represents a credit of $35 if zero represents the original balance?
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Which strategy best explains how to solve this problem? Colin is preparing for a marathon by running in his neighborhood. The first week, he runs one block. The next week, he runs twice as many blocks as the first week (2 blocks). Each week, he plans to run twice as many blocks as he ran the week before. How many blocks will Colin run by the end of the sixth week? A. Use objects to model the problem. Put out 1 chip to represent the blocks run in week one. Put out twice that amount for week two. Put out twice that amount (from week two) for week three. Do this 3 more times, putting out twice the amount from the previous week each time. B. Make a table. In the first row, write first week - 2 blocks. In the next row, write second week - 4 blocks. In the third row, write third week -6 blocks. Continue this pattern for three more rows. C. Write a number sentence. (1 + 2) × 6 = x Add the number of blocks run in the first and 2nd week. Then multiply the sum by the number of weeks (6).
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Im having trouble on 2 questions... 2 (x-5)=x-8 and 2 (x-5)=x.... can u figure them out and explain how to get them.... thanks

Select all answers that apply. Wave diffraction depends on the: size of the obstacle.
wavelength of the waves.
speed of the waves.
mood of the waves.

Answers

speed of the waves because a wave can get faster

Which is the BEST estimation of 9?
A) between 2 and 2.1
B) between 1.5 and 2
C) between 2.1 and 2.2
D) between 2.3 and 2.4

Answers

B. between 1.5 and 2
is the correct answer.....



HOPE IT HELPS YOU '_'
the answer to this question is b

Which answer is a root of f(x)=0 with a multiplicity of 2?

-4
4
3
-3

Answers

Answer:

It will be a positive 3 i hope this helps

Step-by-step explanation:

5. A banner is made of a square and a semicircle. The square has side lengths of 26 inches. One side of the square is also the diameter of the semicircle. What is the total area of the banner? Use 3.14 for pi

Answers

Answer: 941.33 square inches

Step-by-step explanation:

Given : The side length of square = 26 inches

Area of square = (side )^2

=(26)^2=676\text{ square inches}

Also, it given that one side of the square is also the diameter of the semicircle.

i.e. diameter = 26 inches

Radius = half of diameter = 13 inches

Then , the area of the semicircle = (\pi r^2)/(2)

=((3.14)(13)^2)/(2)=265.33\text{ square inches}

Now, the  total area of the banner = Area of square +Area of semicircle

=676\text{ square inches}+265.33\text{ square inches}\n\n=941.33\text{ square inches}

Hence, the total area of the banner= 941.33 square inches

-4.3g=25.8 what is the awnser

Answers

-4.3g=25.8\ \ \ \ |divide\ both\ sides\ by\ (-4.3)\n\ng=(25.8)/(-4.3)\n\ng=-(258)/(43)\n\n\huge\boxed{g=-6}
\sf - 4.3g = 25.8 \n \n Divide \ both \ sides \ by \ - 4.3 \n \n (- 4.3g)/(- 4.3) = (25.8)/(-4.3) \n \n \huge = g = - 6

PLEASE NEED THIS DONE AS FAST AS POSSIBLE!!!!!!!!!!!!!!!!!
IT MUST BE CORRECT

Answers

Answer:

1)7.288 feet

2)11.6 feet

3)safe

4) 3.7 feet

5) ∅= tan^(-1)(1.5) = 56.31 degrees

6)∅1= tan^(-1)(2) = 63.43 degrees

  ∅2= tan^(-1)(1.2) = 50.19 degrees

Step-by-step explanation:

1) The door barn is rectangular in shape. The length is 9 feet and The angle between diagonal and side is 39 degrees.

Applying trigonometry,

tan(39) = (opposite)/(adjacent) = (s)/(9) = 0.809

Thus, s= (9)(0.809) = 7.288 feet

2) Applying pythagoras theorm,

   (Diagonal)^(2) = (9)^(2) + (7.288)^(2) =134.115

  Diagonal length (d) = 11.58 feet. Nearest tenth place = 11.6 feet

3) The length of ladder is 14 foot and height from ground is 13.5 feet.

Applying trigonometry,

sin(∅) =  (opposite)/(hypotenous) = (13.5)/(14) = 0.964

∅ = angle of elevation = sin^(-1)(0.964) = 74.57 ≈ 75 degrees.

Thus tractor can climb safely.

4)Applying, pythgoras theorm,

14^(2) = (13.5)^(2)  + x^(2)

x = \sqrt{14^(2)-(13.5)^(2)} = 3.708

Thus, ladder should be placed at distance 3.7 feet

5)Let angle of elevation be ∅.

  tan(∅) = (30)/(20) = 1.5

  ∅= tan^(-1)(1.5) = 56.31 degrees

6)After moving 5 feet closer to barn, Let angle of elevation for light near barn be ∅1 and for farther one be ∅2.

Thus,

tan(∅1) = (30)/(15) = 2

  ∅1= tan^(-1)(2) = 63.43 degrees

tan(∅2) = (30)/(25) = 1.2

  ∅2= tan^(-1)(1.2) = 50.19 degrees
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