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Daniel [21]
4 years ago
6

4) (3√2+4)(√2−1)=_____+√2 Response: __________

Mathematics
2 answers:
LenKa [72]4 years ago
8 0

Answer:

Step-by-step explanation:

Use FOIL method

(3√2 +  4)(√2 - 1) = 3√2*√2 - 3√2*1 + 4 *√2 - 4*1

                           =3*√(2*2) - 3√2 + 4√2 - 4

                           = 3*2 - 3√2 + 4√2 - 4

                           = 6 - 3√2 + 4√2 - 4  {add the like terms}

                          = 6 - 4 - <u>3√2 + 4√2</u>

                          = 2 + √2

scoray [572]4 years ago
6 0

Answer:

2+\sqrt{2}

Step-by-step explanation:

(3\sqrt{2} +4)(\sqrt{2} -1) = (3*2)+4\sqrt{2} -3\sqrt{2}-4

= 6-4+\sqrt{2}

= 2+\sqrt{2}

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Which situation best represents the following equation 15+.15x&lt;25+.05x
Goryan [66]

Answer:

x<10

Step-by-step explanation:

First, we want to move all of our like terms to one side. In the inequality, the variable x on one side and our whole numbers on the other.

To do this you have to cancel out 0.5x on the right side. So you need to subtract 0.5 from both sides.

This leaves you with 15+x<25. Subtract 15 from both sides which leaves you with x<10

Hope this helps :)

5 0
4 years ago
What is the solution to this system of equations? 2t + w = 10 4t = 20 − 2w A. It has no solution. B. It has infinite solutions.
joja [24]

Answer:

<h3>B. It has infinite solutions</h3>

Step-by-step explanation:

Given the system of equations:

2t + w = 10 ..... 1

4t = 20 − 2w ... 2

From 1:

w = 10-2t ...3

Substitute 3 into 2 to have;

4t = 20 - 2(10-2t)

4t = 20-20+4t

4t = 4t

Let t = k

Substitute t = k into 1 and get w;

From 1: 2t + w = 10

2k + w =10

w = 10 - 2k

<em>k can take any integers. This shows that the solution to the equation is infinite</em>

<em></em>

7 0
3 years ago
Identify the function shown in this graph
alexandr402 [8]
It’s c since the line goes down 5 and the y intercept is 3 so it would be y=-5x+3
4 0
3 years ago
Hey you!<br><br> I think I need your help with this one - Thanks~
timofeeve [1]
Hey Gary!

The volume of a cylinder is PiR^2h, or 3.14(r^2)h.
Let's define our measures.
Pi is 3.14 (simplified). However, our answer is requested in terms of Pi.
Our radius is 5.
Our height is 14.
Let's plug in our numbers.

5^2 • 14 • Pi
5^2 = 25
25 • 14 = 350.

350Pi is our answer.
However, rememver that we need to end our answer in units cubed, as we are using a 3-dimensional figure. Our answer is 350Pi in^3.
Your answer is B.)

I hope this helps!



5 0
3 years ago
Read 2 more answers
Identify the area of the polygon that has vertices A(0,3), B(5,5), C(7,3), and D(3,1)
natka813 [3]

Answer: A = 14 units2

Step-by-step explanation: Please look at the image below!

6 0
3 years ago
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