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Crazy boy [7]
2 years ago
13

Simplify (6x ^ 2 + 11x - 3) + (2x ^ 2 - 17x - 4) . (1 point)

Mathematics
1 answer:
Elden [556K]2 years ago
5 0

Answer:

2) 8x^2 -6x-7 hope this helps

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1. Mr. Hurst's house increased in value to $185,400 one year after he bought
katovenus [111]

Answer:

B.

Step-by-step explanation:

Mark me brainliest if correct plz. If incorrect, you can give me 1 star to let me know. Thank you!

8 0
2 years ago
7x-2y=16 11x+6y=32.3<br>how to solve this math problem​
Aneli [31]

Answer:

Step-by-step explanation:

These types of equations are called simultaneous equations and the method we can use to solve these type of equations is either Substitution, Elimination and Graphing.

We use substitution here because it is easier.

Equation 1

7x-2y=16

Equation 2

11x+6y=32.3

Lets take equation 1

7x-2y=16\\7x=16+2y\\x=\frac{16+2y}{7}

This is our equation 3 , now put it inside equation 2.

11x+6y=32.3\\11(\frac{16+2y}{7} )+6y=32.3\\\frac{176+22y}{7} +6y=32.3\\\frac{176+22y+42y}{7}=32.3\\176+22y+42y=226.1 \\\\42y+22y=226.1-176\\64y=50.1\\y=\frac{50.1}{64} \\y=0.783\\

We found the value of y , now to find the value of x insert the value of y in equation 3

x=\frac{16+2y}{7}\\x=\frac{16+2(0.783)}{7} \\x=\frac{16+1.566}{7}\\x=\frac{17.566}{7}\\x=2.509

Solved ! See the attached image on both the straight line graphs i have attached for better understanding. Where both the lines intersect each other is our value of (x , y) respectively.

6 0
2 years ago
A taxi fare is $3 and then $0.40 for every kilometre. A taxi fare is $9 . How far has the taxi travelled?
Charra [1.4K]

Answer:

y = 3 + 0.40x

Step-by-step explanation:

Fixed cost of taxi fare = $3

Additional cost = $0.40

Let

y = Total cost

x = number of kilometers

The equation:

Total cost = Fixed cost of taxi fare + (Additional cost * number of kilometers)

y = 3 + 0.40x

8 0
3 years ago
What is the value of a + bc when a = 7, b = 4, and c =8
Bess [88]

Answer:

answer is 39

Step-by-step explanation:

7 + 4*8 = 39

4 0
2 years ago
Read 2 more answers
I Need help please I don’t understand this
Otrada [13]

Remember that parentheses come first. Follow PEMDAS

4 0
2 years ago
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