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Aleksandr [31]
2 years ago
11

Use appropriate formulas from geometry to evaluate the integral. Write the exact answer. Do not round.

Mathematics
1 answer:
Leni [432]2 years ago
5 0

Answer: ur answer is 8

Step-by-step explanation:

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Which of the following is true about the system 4/3x−2/5y=2 and 3x−2y=−1?
lilavasa [31]

Equation 1 is \frac{4}{3}x -\frac{2}{5}y =2 ,

Equation 2 is [/tex] 3x-2y = -1 [/tex]

for first equation LCD= 3 *5 = 15 , So we multiply whole equation by 15

\frac{4}{3} *15x -\frac{2}{5}*15 y =2*15

20x - 6y = 30

Now multiply second equation by -3 , to make the coefficient of y equal and opposite , so that we can apply the elimination method

-9x+6y = 3

Add both the equations

20x -9x -6y +6y = 30+3

11x= 33

Divide both sides by 11

x=3

Plug in any one of the equation we get

3(3) -2y = -1

9 - 2y = -1

subtract 9 from both sides

-2y = -10

divide both sides by -2

y=5

So the solution is x= 3 , y= 5

Which means

a. The system is consistent and independent. TRUE

7 0
3 years ago
Triangle PQR is transformed to triangle P'Q'R'. Triangle PQR has vertices P(3, −6), Q(0, 9), and R(−3, 0). Triangle P'Q'R' has v
Serggg [28]

Step-by-step explanation:

that's for Part B

Part C: triangles PQR and P"Q"R" are not congruent since the corresponding sides are not equal

5 0
3 years ago
What is x? x + 5 = 9. Pretty easy points to score.
lisabon 2012 [21]
X+5=9
subtract 5 from each side
x=4
5 0
3 years ago
From ground an electrical worker looks up at an electrical tower with 2 sets of T bars, the lower has a 25° angle of elevation f
jolli1 [7]

Did u get any of the answersss!!?

4 0
3 years ago
Grayson's Garage charges $40 per hour to do car repairs plus the cost of the parts.
Marta_Voda [28]

Answer:

(a) c = 40h + p

(b) $285

Step-by-step explanation:

(a)

Total Cost = (Cost per hour x Number of Hours) + Total Cost of Parts

c = 40h + p

(b)

For this case, p = $165 and h = 3:

c = 40*3 + 165 = $285

5 0
3 years ago
Read 2 more answers
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