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Pavel [41]
3 years ago
7

Subtract and simplify. Show work (-5y^2 – 9y – 4) - (-2y^2– y + 8)

Mathematics
1 answer:
Mars2501 [29]3 years ago
4 0
Subtract:-8y+2y^2-37 Explanation: you will start off by simplifying each term so you would raise 5 to the power of 2 and get -1x25-9y-4-(-2y2-y+8) and you then multiply -1 by 25 so you would do -25-9y-4-(-2y^2-y+8) and then you would apply distributive property so you would do -25-9y-4+(2y^2)- -y-1x8 and then you simplify and get -25-9y-4+2y^2+y-8 and lastly you would simplify by adding terms so you would subtract 4 from -25 so do −9y-29+2y^2+y-8. And then add -9y and y by doing -8y-29+2y^2-8 and subtract 8 from 29 and get your answer as -8y+2y^2-37
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A Pairs socks that normally sells for eight dollars is on sale for 15% off find the sale price of the socks then find the total
Lena [83]

Answer:

Step-by-step explanation:

The original selling price of the pair of socks is $8. The pair of socks is on sale for 15%. The new selling price of the pair of socks would be the original price - 15% off the original price. It becomes

8 - (15/100 × 8) = 8 - 0.15×8 = 8 - 1.2 = $6.8

if the sales tax rate is 8%, it means that the total cost of the socks would be the new selling price + 8% of the new selling price. It becomes

Total cost of the pair of socks

= 6.8 + (8/100×6.8) = 6.8 + 0.08×6.8 = 6.8 + 0.544 = $7.344

7 0
3 years ago
1. A family is building a circular fountain in the backyard. The yard is rectangular and measures 10x by 15x and the fountain is
sp2606 [1]
1. The remaing area of the yard will be found as follows:
Area of the yard

A1=length*width=10x*15x=150x^2 yd^2

area of the fountain
A2=πr²
A2=π(4x)²
=50.266x^2

The remaining area will be:
A=150x^2-50.266x^2
A=99.735x^2 yd^2


2] Area left for bleachers, restrooms and other parts of the stadium will be as follows:
Area of the lot is:
A1=length*width
A1=8x×12x= 96x^2 

Area of the field
A2=length×width
A2=3x×6x=18x^2

Hence the remaining area will be:
A1-A2
=96x^2-18x^2
=78x^2 sq. units


7 0
3 years ago
On Saturday morning, Malik earned $32. By the end of the afternoon he had earned a total of $63. Which equation represents this
aleksley [76]
X+ 32= 63 that is correct answer
6 0
3 years ago
The final price of a pair of socks is $6.40. It is on sale for 20% off. What is
Tresset [83]

Answer: original price= $8

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 8 × 20/100

Discount = 8 x 0.2

You save = $1.60

Final Price = Original Price - Discount

Final Price = 8 - 1.6

Final Price = $6.40

3 0
2 years ago
Find each sum. (3n2 – 5n + 6) + (–8n2 – 3n – 2) =
valkas [14]
Answers: (n+6)+(-19n-2)= 18n+4

Step by Step:
3n2-5n+6
6n-5n+6
n+6

-8n2-3n-2
-16n-3n-2
-19n-2
5 0
4 years ago
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