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lora16 [44]
3 years ago
11

Help and I'll help back

Mathematics
1 answer:
son4ous [18]3 years ago
3 0
8y^4 is the solution
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Simplify (6x2 - 3 + 5x3) - (4x3 - 2x2 - 16​
Masteriza [31]

Answer:

x^3 +8x^2 +13

Step-by-step explanation:

(6x^2 - 3 + 5x^3) - (4x^3 - 2x^2 - 16​)

Distribute the minus sign

6x^2 - 3 + 5x^3 -4x^3 + 2x^2 + 16​

Combine like terms

x^3 +8x^2 +13

8 0
3 years ago
−15x + 60 ≤ 105 AND 14x + 11 ≤ −31
almond37 [142]
Answer:

1. -15x + 60 <= 105 2. 14x + 11 <= - 31

Step-by-step explanation:
1. x> = - 3
2. x <= - 3

Isolate the variable by dividing each side by factors that don't contain the variable
5 0
3 years ago
Read 2 more answers
Pls help me in these two little exercises about the slope.
den301095 [7]

Answer:

3)  y=\dfrac35x+\dfrac25

4) a)  y=-2x+7

  b)  y=\dfrac12x+\dfrac92

Step-by-step explanation:

<u>Exercise 3</u>

-3x + 5y = 2

\implies 5y = 3x + 2

\implies y=\dfrac35x+\dfrac25

<u>Exercise 4</u>

a) If L2 is parallel to L1, it has the same slope (gradient) ⇒ m = -2

If L2 passes through point (3, 1):

y-y_1=m(x-x_1)

\implies y-1=-2(x-3)

\implies y=-2x+7

So L2 = L1

b) If L3 is perpendicular to L1, then the slope of L3 is the negative reciprocals of the slope of L1  ⇒  m = \dfrac12

If L3 passes through point (-5, 2):

y-y_1=m(x-x_1)

\implies y-2=\dfrac12(x+5)

\implies y=\dfrac12x+\dfrac92

4 0
2 years ago
Read 2 more answers
The sum of two numbers is 72 while the difference between the numbers is 25. the larger of the numbers is
7nadin3 [17]
2 equations:  the first one is the sum of 2 unknown numbers x and y: x + y = 72. Now the difference is 25, so x - y = 25. Solve the first equation for y: y = 72 - x. Sub that into the second equation to solve for x: x - (72 - x) = 25. x - 72 + x = 25 and 2x - 72 = 25.  Therefore, 2x = 97 and x = 48.5  That's the larger of the 2 numbers; since we subtracted y from x we defined x as the larger of the 2.  Just for fun, plug x in to find that y = 23.5
7 0
3 years ago
Math help please? &lt;3
Tomtit [17]
10m + 80 = P
where every month he gets 10, and for 6 months, he now has 60
plus the 80 he already has
so (10 * 6 ) + 80 = 140

7 0
3 years ago
Read 2 more answers
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