MATHEMATICS MIDDLE SCHOOL

Which best explains why the eqation 4x+5=4x-1 has no solutionsA. The equation is not true for any value of x.
B. The equation has a variable on both sides
C. The equation is true for any value of x.​

Answers

Answer 1
Answer:

Answer:

A

Step-by-step explanation:

If you simplify the equation you are left with 5 = -1, which is an untrue statement. Therefore, no matter what value you use for x you will always be left with 5 = -1.

Answer 2
Answer:

Answer:

A

Step-by-step explanation:

The equation is not true for any value of x because it has 4x on both sides, but has both +5 and -1 on both sides, so this is impossible.

The equation would never work because the left side would always be bigger than the right side and vice versa.

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A parallelogram has an area of 288 square centimeters and a height of 12 centimeters.What is the length of the base of the parallelogram?



_________A parallelogram has an area of 288 square centimeters and a height of 12 centimeters.



What is the length of the base of the parallelogram?



____cm

Answers

288/12=24 Therefore, the length of the base is 24 cm.

Tracy has 40 feet of material to make the perimeter of a rectangle sandbox for her little brother what rectangle with whole number side length would give the sandbox with the greatest area?

Answers

I think the length should be 10 and bredth be 10. This will result into greatest area with the same perimeter.

Area = 10 * 10 = 100
Perimter = 4 * 10 = 40 
I personally think this:

length = 10 feet

width = 10 feet

Please Help!!!!!1) Find the equivalent ratio 3:10.

1 to 3

9 to 30

6:13

12:48

2) Find an equivalent ratio 8:6.

4 to 3

2:1

16 to 9

10:8

Answers

the answer to #1 is 9 to 30
the answer to #2 is 4 to 3


1: 9 to 30.

2: 4 to 3.

Find the area of quadrilateral ABCD. [Hint: the diagonal divides the quadrilateral into two triangles.]A. 26.47 units²
B. 28.53 units²
C. 33.08 units²
D. 27.28 units²

Answers

Answer:

Option B 28.53\ units^(2)

Step-by-step explanation:

The area of quadrilateral ABCD is equal to the area of triangle ABD plus the area of triangle ADC

we know that

Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides.  

Let  

a,b,c be the lengths of the sides of a triangle.  

The area is given by:

A=√(p(p-a)(p-b)(p-c))

where

p is half the perimeter

p=(a+b+c)/(2)

step 1

Find the area of triangle ABD

we have

a=AB=2.89\ units

b=BD=8.59\ units

c=DA=8.6\ units

Find the half perimeter p

p=(2.89+8.59+8.6)/(2)=10.04\ units

Find the area

A=√(10.04(10.04-2.89)(10.04-8.59)(10.04-8.6))

A=√(10.04(7.15)(1.45)(1.44))

A=√(149.89)

A=12.24\ units^(2)

step 2

Find the area of triangle ADC

we have

a=AC=4.3\ units

b=AD=8.6\ units

c=DC=7.58\ units

Find the half perimeter p

p=(4.3+8.6+7.58)/(2)=10.24\ units

Find the area

A=√(10.24(10.24-4.3)(10.24-8.6)(10.24-7.58))

A=√(10.24(5.94)(1.64)(2.66))

A=√(265.35)

A=16.29\ units^(2)

step 3

Find the total area

A=12.24+16.29=28.53\ units^(2)

Answer:

B.) 28.53 units²

Step-by-step explanation:

I got it correct on founders edtell

Risa is preparing a short oral presentation about singer, songwriter, and American icon Bob Dylan and the cultural impact of his music. Which multimedia sources should she include in her presentation? Check all that apply.A) a podcast in which Dylan’s life and work are discussed

B) an audio clip of one of Dylan’s most influential songs

C) a recording of Dylan’s most influential album

D) a photograph of Dylan performing at a concert

E) an article about Dylan’s influence on his fans

Answers

Pretty sure this isn't math.

I'd skip A -- it's Risa's presentation, not some podcasters'

B.  An audio clip.  Of course this should be included.  I'd go with "Like a Rolling Stone."

C. An entire album is 45 minutes or so, too long for a short oral presentation.  Skip the recording but some full size album covers containing actual vinyl records would be a nice touch.

D. Sure, photographs would work nicely.

E. Risa can cite any articles she used to prepare, but a full article has a lot of words and doesn't make sense as part as a short presentation.  Maybe some slides with quotes from some articles would be more appropriate.

Answer: B, D

Answer:

B and D

Step-by-step explanation:

one side of a square is 10 units.Which is greater,the number of square units for the area or the number of units for the perimeter

Answers

The number of square units for the area is...

a = length × width
A = 10 × 10 = 100 units ^2

The number of units for perimeter is...

perimeter = 4 × length
perimeter = 40 units

The number of square units for area is larger.

*note - Since we have a square, we know all side Lengths are the same.
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