Answer: 42/13
Step-by-step explanation: Multiply everything by 7 to eliminate the fraction:
k+ 21 - 14k = -21
Isolate the variable:
k - 14k = -21-21
13k= -42
divide the sides by -13.
42/13
The answer to this is y <= -8.
Answer:
(10a+5)²= 100 a( a+1) + 25
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given
(10a+5)²
By using (a+b)² = a² +2ab +b²
= (10a)²+ 2 × 10a× 5 + (5)²
= 100a² + 100a + 25
= 100 a( a+1) + 25
The answer to this is: x=25
Answer:
For each situation, decide if it requires Noah to calculate surface area or volume. Explain your reasoning.
Noah is planning to paint the bird house he built. He is unsure if he has enough paint.
Noah is planning to use a box with a trapezoid base to hold modeling clay. He is unsure if the clay will all fit in the box.
Step-by-step explanation:
