ImmortalFusedZamasu ImmortalFusedZamasu

01-08-2018
Mathematics

contestada

solve for y

A. 8

B.
[tex]3 \sqrt{7} [/tex]
C.
[tex]4 \sqrt{7} [/tex]
D. 12

solve for yA 8B tex3 sqrt7 texC tex4 sqrt7 texD 12 class=

Respuesta :

06-08-2018

Triangle ADC and triangle BCD are similar, therefore the sides are in proportion:

[tex]\dfrac{y}{9}=\dfrac{7}{y}[/tex]

cross multiply

[tex]y^2=9\cdot7\to y=\sqrt{9\cdot7}\\\\y=\sqrt9\cdot\sqrt7\\\\y=3\sqrt7[/tex]

Answer: B. 3√7

Ver imagen gmany

Answer Link

Otras preguntas

please help me asap!!

I need help please with late math homework

Yasmine is having a birthday party with snacks and activities for her guests. At one table six people are sharing four-fifths of a pizza. What equal-sized porti

how you can use mental math to find the product

A family pays $19 each month for internet access. Next month the cost will increase by 5% because of an equipment fee.after this increase, what will be the cost

What is Sal's weakness in Walk two Moons?

Manifest destiny describe the picture

In a class no of girls is 11 more than the no of boys .If the total no.of students in the class is 55 how many are girls?

Find the volume of the cylinder. Use 3.14 for pi.

tessellation that use more than one type of regular polygon are called regular tessellations