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fiasKO [112]
3 years ago
15

Simplify: (7x^2 − 8x − 4) + (−2x^2 + 3x + 5) + (5x^2 − 10x − 8)

Mathematics
1 answer:
kramer3 years ago
5 0
Step 1. Simplify
7x^2 - 8x - 4 - 2x^2 + 3x + 5 + 5x^2 - 10x - 8
Step 2. Collect like terms
(7x^2 - 2x^2 + 5x^2) + (-8x + 3x - 10x) + (-4 + 5 - 8)
Step 3. Simplify 

10x^2 - 15x - 7
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Which lines are perpendicular to the line y – 1 = One-third(x+2)? Check all that apply.
irinina [24]

Answer:

Lines that have a slope of -3

Step-by-step explanation:

Take the negative reciprocal of 1/3 and all lines that have that as the slope are perpendicular

5 0
4 years ago
Read 2 more answers
10.) A soccer team plays 104 tournaments in two
Gala2k [10]

Answer:

A. The Number of Lost games = 154 Games

B. Number of games won is greater than the number of games lost.

Step-by-step explanation:

A. how many games did they lose in both years?

Total Number of games = 104 tournaments x 3 Games in each tournament

Total Number of games = 312 Games

The No. of Lost games= Total Games in 2 years - Games won in 1st year - Games won in 2nd year

The No. of Lost games = 312 - 55 - 103

The No. of Lost games = 154 Games

B. Is the number of games won greater than the number of games lost?

Total Number of Games won = 158 Games

Total Number of Games lost = 154 Games

Hence, Total Number of Games won is greater than the Total Number of Games lost.

8 0
3 years ago
Please help :(
nadezda [96]
Area=legnth times width
legnth=30 and 1/2
width=20
area=30 and 1/2 times 20
area=(30+1/2) times 20
distribute
area=20 times 30+20 times 1/2
area=600+10
area=610
area= 610 m^2




perimiter=legnth +width+legnth+width
perimiter=2legnth+2width
width=6 and 1/2
legnth=10
perimiter=2(10)+2(6 and 1/2)
perimiter=20+13
perimiter=33cm


1. area=610 m^2
2. perimiter=33cm


4 0
3 years ago
Randy bought 6 candy bars for $7.20. What is the cost per candy bar? PLS HELP FAST IT IS WORTH 45 POINTS AND MY GRADE
algol13

Answer:

$1.20 per candy bar

Step-by-step explanation:

7.2 ÷ 6 = 1.2

4 0
3 years ago
Prove that<br><img src="https://tex.z-dn.net/?f=%20%7B2%7D%5E%7B3%7D%20%20%5Ctimes%20%20%7B3%7D%5E%7B0%7D%20%20%2B%20%20%7B3%7D%
KonstantinChe [14]

Answer:

Step-by-step explanation:

Anything raise to the power zero is 1

Therefore,

               LHS\\\\ =2^3 \times 3^0 + 3^2 \times 2^0\\\\8 \times 1 + 9 \times 1 \\\\17

LHS = RHS

Hence Proved

5 0
3 years ago
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