All categories

3 years ago

40 POINTS!!!!

Mathematics

1 answer:

laiz [17]3 years ago

7 0

Answer:

6 sqrt(3) = y

Step-by-step explanation:

We can use the leg rule to find y

hyp leg

----- = -------

leg part

9+3 y

----- = -------

y 9

Using cross products

12*9 = y^2

108 = y^2

Taking the square root of each side

sqrt(108) = sqrt(y^2)

sqrt(36 *3) = y

6 sqrt(3) = y

You might be interested in

Calculate the length of AB if A is the point (2,3) and B is the point (-2,0)

d1i1m1o1n [39]

Answer:

Formular for coordinate length:

$length = \sqrt{ {(x_{1} - x _{2} )}^{2} + {(y_{1} - y_{2})}^{2} }$

In considerance of coordinates given of A and B

$x _{1} \: \: is \: \: 2 \\ x_{2} \: \: is \: \: - 2 \\ y_{1} \: \: is \: \: 3 \\ y_{2} \: \: is \: \: 0$

therefore substitute:

$length = \sqrt{ { \{2 - ( - 2) \}}^{2} + {(3 - 0)}^{2} } \\ \\ = \sqrt{ {(2 + 2)}^{2} + {3}^{2} } \\ = \sqrt{ {4}^{2} + {3}^{2} } \\ = \sqrt{16 + 9} \\ = \sqrt{25} \\ \\ { \boxed{ \boxed{length \: \: is \: \: 5 \: units}}}$

5 0

3 years ago

Read 2 more answers

If you spin the spinner 90 times,<br> how many times should the<br> number 3 be selected?

prohojiy [21]

Answer:

Step-by-step explanation:

1/6 of 90 is 15

4 0

3 years ago

Find the new amount given the original amount and the percent of change.

QveST [7]

So 45% of 35 is 16.2 so subtract 16.2 from 36 and you get A 19.2

4 0

3 years ago

Simplify the expression

Natalija [7]

Step 1 :

(23 x 2 - 5) • x 3

Step 2 :

Trying to factor as a Difference of Squares :

Factoring: 8 x 2-5

Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)

Proof : (A+B) • (A-B) =

A2 - AB + BA - B2 =

A2 - AB + AB - B2 =

A2 - B2

Answer:

(8 x 2 - 5) • x 3

3 0

3 years ago

H^-2g for h=3 and g=27

Alexeev081 [22]

Plug h = 3 and g = 27 into the expression:

$h^{-2}g= \dfrac{g}{h^2} = \dfrac{27}{3^2} = \dfrac{27}{9} = 3$

3 0

3 years ago