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3 years ago

Simplify the polynomial. 3y3 − y2 + 2y4 + 2y3

Mathematics

1 answer:

maria [59]3 years ago

4 0

Answer:

2y^4 + 5y^3 - y^2

Step-by-step explanation:

3y^3 - y^2 + 2y^4 + 2y^3

2y^4 + 3y^3 +2y^3 - y^2 combine like terms

2y^4 + 5y^3 - y^2 <---- answer

Hope this helps!

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Shaun is 1.88 m tall. David is 6 cm taller than Shaun. How tall is David

Aliun [14]

1.88m= 188 cm. 188cm+6cm=194cm

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3 years ago

We usually Round off the 79.90% to 80. What value does 80 count?

pochemuha

Answer: 00.10

Step-by-step explanation: Add 00.10 to 79.90 and you get 80. Brainliest please?

4 0

3 years ago

8s + 9 = 7s + 6 s= ?

denis-greek [22]

Answer:

s = -3

Step-by-step explanation:

8s + 9 = 7s + 6

Subtract 7s from each side

8s-7s + 9 = 7s-7s + 6

s+9 = 6

Subtract 9 from each side

s + 9-9 = 6-9

s = -3

7 0

3 years ago

Read 2 more answers

X(2x-5) = 12 How to solve for x?

vlabodo [156]

Answer:

$x=4,\:x=-\frac{3}{2}$

Step-by-step explanation:

$x\left(2x-5\right)$

Apply the distributive law.

$=x\cdot \:2x-x\cdot \:5$
$=2x^2-5x$
$2x^2-5x=12$
Subtract 12 from both sides.
$2x^2-5x-12=12-12$
$2x^2-5x-12=0$
Now, apply the quadratic formula.
$x_{1,\:2}=\frac{-\left(-5\right)\pm \sqrt{\left(-5\right)^2-4\cdot \:2\left(-12\right)}}{2\cdot \:2}$
$x_{1,\:2}=\frac{-\left(-5\right)\pm \:11}{2\cdot \:2}$
Separate the solutions.
$x_1=\frac{-\left(-5\right)+11}{2\cdot \:2},\:x_2=\frac{-\left(-5\right)-11}{2\cdot \:2}$
Simplify.
$x=4,\:x=-\frac{3}{2}$

5 0

2 years ago

Which features describe the graph of y^2/96^2 - x^2/40^2 =1? Check all that apply.

goldenfox [79]

The given equation is
$\frac{y^{2}}{96^{2}} - \frac{x^{2}}{40^{2}} =1$

From the given equation,
a = 40
b = 96
(h,k) = (0,0), the center

The vertices are at (0,96) and at (0, -96).
The curves open upward and downward.

c² = a² + b² = 40² + 96² = 10816
c = 104
Therefore the foci are at (0, -104) and (0, 104).

Check the given answers:
1. a focus at (104, 0) is INCORRECT
2. a focus at (0, -96) is INCORRECT
3. a vertex at (-40, 0) is INCORRECT
4. a vertex at (0, 96) is CORRECT
5. the center at (0, 0) is CORRECT

8 0

3 years ago

Read 2 more answers