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Feliz [49]
2 years ago
7

Find k. Write your answer in simplest radical form.

Mathematics
1 answer:
Airida [17]2 years ago
4 0

Answer:

k = 2\sqrt{2}

Step-by-step explanation:

This is a 45- 45- 90 triangle is isosceles , base angles are congruent

Then legs are congruent , both 2

Using Pythagoras' identity in the right triangle

k² = 2² + 2² = 4 + 4 = 8 ( take square root of both sides )

k = \sqrt{8} = \sqrt{4(2)} = \sqrt{4} × \sqrt{2} = 2\sqrt{2}

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Evaluate <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%7Bm%7D%5E%7B2%7D%20%20%2B%20%20%7Bm%7D%5E%7B%20-%202%7D%20%2B%20
zysi [14]

Answer:

9.5

Step-by-step explanation:

(0.5^2 + 0.5^-2 + 0.5) / 0.5 = 9.5

Hope this help! :)

4 0
3 years ago
HELP PLEASE
Nataly [62]
I THINK THE ANSWER WOULD BE C
3 0
3 years ago
The table shows two options provided by a high-speed Internet provider.
Gnoma [55]

Answer:

8 months and $320

Step-by-step explanation:

To find when 30m + 80 = 40m, isolate m.

30m + 80 = 40m

Subtract 40m from both sides.

-10m + 80 = 0

Subtract 80 from both sides.

-10m = -80

Divide both sides by -10

m = 8

To find the cost, substitute 8 as m in one of the equations.

40(8) = 320

6 0
3 years ago
Which of the following demonstrates the Commutative Property of Multiplication? (3 points)   2(6a − 3) = (6a − 3) ⋅ 2 2(6a − 3)
Virty [35]
Commutative means 'you can swap them'. I.e., a+b = b+a, addition is commutative. Subtraction is not.

The first answer: <span>2(6a − 3) = (6a − 3) ⋅ 2  is an example where 2 and (6a-3) are the factors that can be swapped, because multiplication is commutative.</span>
5 0
3 years ago
Read 2 more answers
Find f(g(3).<br> f(x)=2x-5<br> g(x)=1+x^2
serious [3.7K]

Answer:

f(g(3)) = 15

Step-by-step explanation:

g(x)=1+x^2

g(3) = 1 + 3^2 = 1 + 9 = 10

f(g(3)) = 2(10) - 5 = 20 - 5 = 15

4 0
3 years ago
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