Answer:
The hight length : h
The base length : a
Apply the Pythagorean theorem in the right triangle :
h² = 13² - (10/2) = 144
h = √144 = 12 cm
S = (a x h)/ 2 = ( 10 x 12 )/2 = 60 cm²
Step-by-step explanation:
Ok . since they are similar you can use similarity factor
Answer:
1) 10
Basic facts:
<em>we can tell a right angle if there is a small square drawn where the angle measuring should be done</em>
Step-by-step explanation:
<u>Main step</u>
<u>90-60=30</u>
<u>30=3x</u>
<u>divide by 3</u>
<u>10 =x</u>
the value of x is 10
so option 1
The vertex is at (0, 3) so y=a(x-0)²+3, which is y=ax²+3
next, use a given point to find a: 10=a(3)²+3, so 9a=7, a=7/9
the equation is then y=

as for the first question, the shape is an ellipse, the domain is -5≤x≤5, the range is -3≤y≤3
the equation can be written as :