MATHEMATICS MIDDLE SCHOOL

(4x³-5x+10) ÷ (x+1)

Answers

Answer 1

Answer:

Answer:

4x^2 − 4x −1 + 11 / x+1

Step-by-step explanation:

The answer is

4x^2 − 4x −1 + 11 / x+1

Answer 2

Answer:

4x^3 - 4x + 11

Step-by-step explanation:

Simplify the expression.

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If the sales tax on a $30 item is $1.80, what is the sales tax rate?

Answers

30t = 1.80
t = 0.06

0.06*100 = 6

6%

Dmitri wants to cover the top and sides of this box with glass tiles that are 1 cm square. How many tiles will he need?The dimensions are 23 cm, 12 cm, and 7 cm.

Answers

I think the answer would be 1932 tiles cubed, I think you might need help from someone else though, sorry.

What is 3.05 divided by 0.05

Answers

Hey there

What is 3.05 divided by 0.05

3.05 divided by 0.05 = 61

3.05 ÷ 0.05 = 61

Answer = 61

Becky wants to fence in a rectangular play area for her dog. If she was 82 feet of fencing and wants the length of the play area to be 9 feet longer than its width then what should the dimensions of the play area be?

Answers

ok
fencing=perimiter
perimiter=L+L+W+W=2L+2W=2(L+W)
82=2(L+W)
divid eboth sides by 2 for ease of use
41=L+W

if she wants legnth to be 9 more than width, then
L=9+W
subsitute 9+W for L
41=9+W+W
41=9+2W
subtract 9
32=2W
divide 2
16=W

subsitute
L=9+W
L=9+16
L=25

the pen should be 25 feet by 16 feet

length= width+9 ----- Now we can substitute length with width!
Perimeter = 2(length) + 2(width)
Perimeter = 82
82= 2(w+9) + 2w
41 = w+ 9 + w
41-9 = 2w
32 = 2w
16= w (now plug w into the equation for length)
length = 16 + 9 = 25

SOO... Dimensions = 16 x 25

Hello! can you help me please <3)