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alexgriva [62]
3 years ago
14

Please help !!!!:!:):):$:)

Mathematics
2 answers:
IRISSAK [1]3 years ago
6 0
The correct answer is B
djverab [1.8K]3 years ago
4 0

Answer: B. 9(−7+10x^2)

Step-by-step explanation: 9(−7+10x^2)

=(9)(−7+10x^2)

=(9)(−7)+(9)(10x^2)

=−63+90x^2

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Warm-Up
PtichkaEL [24]

Answer:

The w in w² + 5·w → Variable

The 2 in w² + 5·w → Exponent

The 5 in w² + 5·w → Coefficient

Step-by-step explanation:

1) The variable in an equation are the unknown values of the equation, and the values of the variables that meet the requirements of the equality are known as the solutions of the equations;

2) The exponent is the power to which a number or a variable is raised. It shows the number of times the variable or number multiples itself

3) The coefficient is the factor multiplying the variable in an equation or expression.

5 0
3 years ago
The perimeter of a rectangular garden is 43.8 feet. Its length is 12.4 feet. What is its width?
Veseljchak [2.6K]

Answer:

9.5 ft

Step-by-step explanation:

12.4 times 2 is 24.8 feet (this is the two lengths combined)

since the garden is 43.8 feet, subtract.  43.8 - 24.8 = 19

lastly, 19 divided by 2 is 9.5.

8 0
3 years ago
Read 2 more answers
The sum of two numbers is -17. Their difference is 41. Find the numbers
Alex787 [66]

Answer:

x = 12

y = -29

Step-by-step explanation:

Our given equations: x + y = -17 and x - y = 41

Solve for x and substitute.

x = -17 - y

(-17 - y) - y = 41

-17 - 2y = 41

2y = -58

y = -29

Solve for x using y

x + (-29) = -17

x = 12

3 0
3 years ago
Emelio wants to solve this equation. x 5 = 35 Help him follow the steps to finish solving for x. 1. Multiplication property of e
antiseptic1488 [7]

Answer: 175

Step-by-step explanation

3 0
3 years ago
Read 2 more answers
Please solve with work shown<br><br> 3x-(x-5)=153
pishuonlain [190]
Use cymath it gives you the math answers but the answer is x=74
6 0
3 years ago
Read 2 more answers
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