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Triss [41]
3 years ago
8

Q5. Solve for x and y using elimination method.10x +3y = 75, 6x - 5y = 11​

Mathematics
1 answer:
sleet_krkn [62]3 years ago
8 0

Answer:

16x - 2y = 86

Step-by-step explanation:

10x + 3y = 75

+ 6x - 5y = 11

=

16x -2y =86

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Find an equation of the line tangent to the curve √xy + 4y = 39 at the point (1,9)?
evablogger [386]
Find the derivative of the curve to find the line slope at the given point

sqrt(xy) + 4 dy/dx = 39

0.5(xy)^(-0.5) * (y + x dy/dx) + 4dy/dx=  0

No need to amplify simply plug in the given point ( 1,9)

0.5 ( 1 * 9)^(-0.5)* ( 9 + dy/dx) + 4dy/dx  = 0 

Solve for dy/dx

1/6( 9  + dy/dx)  = -4dy/dx

9 + dy/dx = -24 dy/dx

-25dy/dx = 9

dy/dx = -9/25

as your question implies , you know the rest of the steps. 
7 0
3 years ago
A litter of kittens consists of two gray females, one gray male , one black female, and three black males. You randomly pick one
sladkih [1.3K]

Answer:

There is a 3/7 chance for a gray kitten, a 4/7 chance for a male kitten, and a 1/7 chance for a gray male kitten.

Step-by-step explanation:

Total Kittens = 7 (each of the following will be out of the total amount of kittens)

2/7 = Gray Female

1/7 = Gray Male

1/7 = Black Female

3/7 = Black Male

Total Male Kittens = 4/7

Total Gray Kittens = 3/7

8 0
3 years ago
Read 2 more answers
Alexa is deciding where to buy a new camera. Each store offers a 1-year loan for $450 but with different interest rates and fees
zubka84 [21]

Answer:

The Loan with the lowest annual percentage rate (APR)

4 0
4 years ago
Write an algebraic expression for the word expression: the sum of x and 9
quester [9]

Answer:

x + 9

Step-by-step explanation:


7 0
4 years ago
7.2x12x0.23=? Round to the nearest hundredth
g100num [7]
The answer would be 19.87
7.2*12*.23= 19.872
Because two is lower then 5 we could round to 19.87
3 0
3 years ago
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