Answer:
First one Or Last. I think the last one though
Step-by-step explanation:
Answer:
b=4 makes the equation a perfect square.
Step-by-step explanation:
As long as you factorize out the equation, you'll get a result of (x+2)^2. This multiplied using foil gives you, x^2 + 2x + 4. Making it a perfect square. You could also have -2 = b which makes a perfect square, but that's not in the options.
Answer:
60 degrees
Explanation:
In a rhombus, we have the following properties for its angles:
Angles marked with the same letter are equal.
This means that opposite angles are equal. Also, the sum of consecutive angles is 180°.
In our case, we are interested in the first property, opposite angles are equal. Applying this to our figure:
The angles marked in the same color are equal.
--> B is equal to D:
Answer:
60 degrees
300 - 3x = 24
-24 -24
276 - 3x = 0
+3x +3x
276 = 3x
276/3 = 3x/3
92 = x
x = 92
Answer:
8 feet
Step-by-step explanation:
It is given that, a 3 ft tree casts a 10 ft. shadow. It means that 1 ft long shadow will cast by feet long tree.
Let 26 ft tall tree will cast x feet long shadow. To find it using unitary method we get :
or
x = 8 feet
So, 8 feet long is the shadow of a 26 feet tall tree.