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AVprozaik [17]
3 years ago
10

Will mark brainless

Mathematics
1 answer:
iren2701 [21]3 years ago
6 0

Answer:

Step-by-step explanation:

y = 3x + 2

6x – 2y = 10

Ryan’s answer:

I solved by adding the equations. The solution is .

y = 3x + 2 → 3x + y = 2

6x – 2y = 10 → 3x – y = 5

6x = 7

x =

6x – 2y = 10 → 6 – 2y = 10

7 – 2y = 10

–2y = –3

y = -

Jesse’s answer:

I used matrices. The solution is .

Mark’s answer:

I graphed the equations. The lines are parallel and do not intersect, so there is no solution.

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Find the exact value of each trigonometric function for the given angle θ.
irina [24]

Answer:

[rad] 2.41

Step-by-step explanation:

Since it gave you the point and the angle to find, you simply just have to solve for the inverse of cot. Remember cot is the opposite of tan, so cot is cos/sin. In that case, we plug into the calc (in radians):

cot^-1(-√5/2)

And we should get 2.41 as our answer!

3 0
3 years ago
If y varies directly as x and y = 208 when x = 16, what is the value of y when x = 11? a. 143 b. 121 c. 16 d. 169
Reil [10]

Answer:

Y )0 X

Y=KX

K=Y/X

when x=16 and y=208

K=208/16

K=13

when x=11 and y=?

Y=KX

Y=13 *11

Y=143

3 0
2 years ago
The sum of two integers is -8.if one integer is 12 then the other is?
jeka57 [31]

Answer:

2 and -10

Step-by-step explanation:

let the two integers be x and y.

so, x+y=-8---‐-------(1)

and,

x=y+12-------‐-----(2)

from (1) and (2),

(y+12)+y=-8

or, 2y=-8-12

or, y=-20/2

or, y=-10

substitutting the value of y in (2),

x=-10+12=2

therefore the required integers are 2 and -10.

3 0
3 years ago
Read 2 more answers
Can you turn this sentence into an equation please? Three times twenty one more than a number is twelve. What is that number?
Zanzabum
X + 3 * 21 = 12
x + 63 = 12
x = 12-63
x = -51
The wording was a little odd, but I hope this is what you’re looking for!
3 0
4 years ago
Read 2 more answers
You deposit $1000 in an account that pays 4 1/2% annual interest compounded monthly. How much will you have in the bank after 9
Ierofanga [76]

Answer:

1498.17

Step-by-step explanation:

formula A = P(1 + \frac{r}{100}  )^{n} where r is the rate of interest compounded and n is the number of times compounded.

r = 4.5 / 12 = 0.375 since it is compounded monthly thus need to divide by 12 months

n = 9 x 12 = 108 ( 9 years in months)

A = 1000(1 + \frac{0.375}{100})^{108} = 1498.167

4 0
3 years ago
Read 2 more answers
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