All categories

4 years ago

What is the value of x in simplest radical form ?

Mathematics

2 answers:

snow_lady [41]4 years ago

6 0

Https://www.youtube.com/watch?v=zsEC8A_3QXw

sweet [91]4 years ago

6 0

Solve for X (hypotenuse)

Hypotenuse = $\sqrt{a^{2}+b^{2}}$

Substitute 20 for A and 21 for B
$\sqrt{20^{2}+21^{2}}$

Solve exponents
20^2 = 400
21^2 = 441
Hypotenuse = $\sqrt{400 + 441}$

Add
400 + 441 = 841
Hypotenuse = $\sqrt{841}$

Solve square root
$\sqrt{841}$ = 29
Hypotenuse = 29

You might be interested in

Solve x^2=28 where x is a real number

Vadim26 [7]

5.291 to 2 d.p I think that is the answer.

7 0

3 years ago

Please find the VOLUME of this figure... Write the formula and plug in the values... Write your answer with units and box your a

marusya05 [52]

Answer:

Hope ive done everything correctly

7 0

3 years ago

A single die is rolled twice. Find the probability of rolling an even number the first time and a number greater than 3 the seco

IceJOKER [234]

Events

• A: an even number is rolled in the first time

• B: a number greater than 3 is rolled the second time

The probability of rolling an even number is:

$\begin{gathered} P(A)=\frac{\text{ number of favorable outcomes}}{\text{ total possible outcomes}} \\ P(A)=\frac{3}{6} \\ P(A)=\frac{1}{2} \end{gathered}$

The probability of rolling a number greater than 3 is:

$\begin{gathered} P(B)=\frac{\text{ number of favorable outcomes}}{\text{ total possible outcomes}} \\ P(B)=\frac{3}{6} \\ P(B)=\frac{1}{2} \end{gathered}$

Events A and B are independent, then the probability of one happening after the other is:

$\begin{gathered} \text{ P(A and B) = }P(A)\cdot P(B) \\ \text{ Substituting with the values previously found:} \\ \text{ P(A and B) = }\frac{1}{2}\cdot\frac{1}{2} \\ \text{ P(A and B) = }\frac{1}{4} \end{gathered}$

8 0

1 year ago

Find the vertex of the parabola. y = -4x2 - 16x - 11

emmasim [6.3K]

The standard equation is y=ax^2+bx+k and the vertex way is y=a(x-h)(x-h)+x
so the coordinate for x is -b/2a, for your problem a=-4 b=-16 so the coordinate for x is -(-16)/(2*(-4))=-2. Now you have to replace x=-2 in your equation y=-4(-2)^2-16(-2)-11= 5.
The vertex is (-2, 5)

5 0

3 years ago

Question 1 (2 points)

vitfil [10]

Answer:

Step-by-step explanation:

121/11=11

5 0

3 years ago

Read 2 more answers