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nlexa [21]
2 years ago
6

Simplify: 4w9+(-2w9) enter the original expression if it cannot be simplified

Mathematics
1 answer:
slavikrds [6]2 years ago
6 0
18w (please check for sure though, cause im not 100% ) 
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Ella had softball and dance practice for 4 weeks. She practiced softball 2 hours a week and dance 1 hour a week. Which operation
weqwewe [10]

4 multiplied by 2 by 1 because its her hours for the weeks no other way to calculate this problem

4 0
3 years ago
Read 2 more answers
Trevor tutors French for $15 and hour and scoops ice cream for $10 an hour. He is going to work 15 hours this week. At least how
RUDIKE [14]

Answer:

12 hours

Step-by-step explanation:

so what you do is take your $180 money amount and then divide it by your 15 or 12 dollar money amount and you should get your answer also your "answer" for the things you gave us is

15 x + 10 y = 180

3 0
3 years ago
Write the expression in factored form s^2-20s-100
KatRina [158]

Answer:

The factors of given expression are 10+10√2 and 10-10√2.

Step-by-step explanation:

We have given a quadratic expression.

s²-20s-100

We have to find factors of given expression.

We use quadratic formula to find factors.

x = (-b±√b²-4ac) / 2a

From given expression, a = 1 , b = -20 and c = -100

Putting values in above formula, we have

x = (-(-20)±√(-20)²-4(1)(-100) ) / 2(1)

x = (20±√400+400 ) / 2

x = (20±√800) /  2

x = (20± √400×2) / 2

x = (20±20√2) / 2

x = 10±10√2

Hence, the factors of given expression are 10+10√2 and 10-10√2.

3 0
2 years ago
Solve the equation for 5x^2-4x=6
Andrei [34K]

Answer:

x = (4 + 2√34)/10, x = (4 - 2√34)/10

Step-by-step explanation:

5x² - 4x = 6

Subtract: 5x² - 4x - 6 = 0

Quadratic formula: x = (4 ± √(16 - 4*5*(-6)))/10

Multiply: x = (4 ± √(16 + 120))/10

Simplify: x = (4 ± 2√34)/10

8 0
3 years ago
The product of a number and 7, decreased by the number is equal to 42. Find the number.
evablogger [386]

7
this is the answer, its pretty simple. I'm not sure the mathematical procedures but if you plug in 7 you get 49. Then all you got to do is subtract by 7, because the question states the number is the same. So basically,
7(7) - 7 = 42

8 0
3 years ago
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