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3 years ago

What is 30/20 converted to a percent

Mathematics

1 answer:

lidiya [134]3 years ago

8 0

The answer would be 150%

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2x - 2y = 22 find the value of y when x equals 2

Vika [28.1K]

Answer:

y=-9

Step-by-step explanation:

If x equals 2, then we can substitute that into the equation, resulting in the equation 2*2-2y=22

We can solve for multiplication first:

4-2y=22

Then we can subtract four on both sides, canceling out the four on the left side:

-2y=18

Now to isolate y, we divide both sides by -2, resulting in the solution:

y=-9

Hope this helps!

6 0

3 years ago

Read 2 more answers

find a function whose second derivative is y''=12x-2 at each point (x,y) on its graph and y=-x+5 is tangent to the graph at the

pogonyaev

Start by integrating y'' twice to get function y(x).

$y' = \int (12x - 2) dx = 6x^2 -2x + c \\ \\ y = \int (6x^2 -2x+c )dx= 2x^3-x^2 +cx+d$

Next find value of coefficients 'c' and 'd' using the given tangent line
The slope of tangent line is equal to y' when x=1.

$6x^2 -2x+c = -1, x = 1 \\ \\ 6-2+c = -1 \\ \\ c = -5$

The tangent line intersects the curve y(x) when x = 1.
If x = 1, then y = 4 (From y =-x+5)

$y = 2x^3 -x^2-5x +d , x = 1, y = 4 \\ \\ 2-1-5+d = 4 \\ \\ d = 8$

Final Answer:
$y = 2x^3 -x^2 -5x+8$

3 0

3 years ago

Question 15 (1 point)

yawa3891 [41]

Answer:

B) Variable Expense

Step-by-step explanation:

trust me

8 0

3 years ago

Need help thank you.

MariettaO [177]

Step-by-step explanation:

3e <= 6

e <= 2 (divide 3 on both sides)

The e-values that satisfy the inequality are:

e = 1 and e = 2.

4 0

3 years ago

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5. If Seca = 8/3, COSP<br> A.318<br> B.5/3<br> C. 8/3<br> D"/3

Shtirlitz [24]

Answer:

Cos a = 3/8.

Step-by-step explanation:

If you want cos a you use the identity cos a = 1 / sec a,

so cos a = 1 / 8/3

= 3/8.

8 0

3 years ago