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3 years ago

What does x plus 5 - 2x plus 3y - y

Mathematics

1 answer:

Veseljchak [2.6K]3 years ago

4 0

5-2x+2y is the answer because if you add the (y) together that equals 2y and then you just keep the 5-2x together.

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Do 4x and 15 + x have the same value when x is 5

Andru [333]

Answer:

They have the same value when x=5

Step-by-step explanation:

Let x = 4

4*5 = 20

15+x

Let x =5

15+5 = 20

They have the same value when x=5

7 0

2 years ago

Read 2 more answers

Two balls are drawn in succession out of a box containing

victus00 [196]

There are a total of 8 balls

The probability of drawing a white ball is 4/8 on the first draw.
If you replace the ball then the probability will still be 4/8 for a white ball, since these events are independent of each other you multiply 4/8 x 4/8 = 16/64 or 1/4 then the probability of drawing at least 1 red ball with replacement is 1 - 1/4 = 3/4

Now without replacement:
the probability of drawing a white ball is 4/8 since you don't replace the ball then the probability of drawing a white ball the second time is 3/7 again multiply these two probabilities: 4/8 x 3/7 = 12/56 the the probability of drawing at least 1 red ball is 1- 12/56 = 44/56 or 11/14

4 0

3 years ago

If f(x) = 2x - 6 and g(x) = 3x + 9, find (f - g)(x).

Shalnov [3]

The answer will be C

3 0

3 years ago

SOLVE. integration of (1-v) /(1+v^2)

Nutka1998 [239]

$\displaystyle\int\frac{1-v}{1+v^2}\,\mathrm dv=\int\frac{\mathrm dv}{1+v^2}-\int\frac v{1+v^2}\,\mathrm dv$

The first integral is already standard and has an antiderivative in terms of $\arctan v$ . For the second integral, take $w=1+v^2$ so that $\dfrac{\mathrm dw}2=v\,\mathrm dv$ . Then

$\displaystyle\int\frac{\mathrm dv}{1+v^2}-\int\frac v{1+v^2}\,\mathrm dv=\arctan v-\frac12\int\frac{\mathrm dw}w$
$=\arctan v-\dfrac12\ln|w|+C$
$=\arctan v-\dfrac12\ln(1+v^2)+C$

4 0

3 years ago

What is the sum of the first 40 even intergers?<br> A.1720<br> B.1840<br> C.1580<br> D.1640

3241004551 [841]

Answer:

if so 2130.12548...x^2

THATS BOT REALLY THE ANSWER.. I JUST REALLLY NEED TO LVL UP.. IM SO SORRY :(

Step-by-step explanation:

4 0

3 years ago