ANSWER:
- Equation —: 3.67 = c – 2.13
On solving equation, we get
Hence, Janae solution is incorrect. So I disagree.
Answer:$570
Step-by-step explanation:If it is 900 for 2 walls, and they need 6 walls, then multiply 900 by 3. They would use 2700 bricks for 6 walls. Multiply 2700 by 0.10 to get the price for all the bricks, 270 dollars. If labor to build each wall costs 50 dollars then multiply that by 6 and add it to the 270 dollars. It costs 570 dollars to build 6 walls
Step-by-step explanation:
<u>Let the number is x, then "a number decreased by five" is:</u>
The involved operation is subtraction
Answer:
AB ≈ 15.7 cm, BC ≈ 18.7 cm
Step-by-step explanation:
(1)
Using the Cosine rule in Δ ABD
AB² = 12.4² + 16.5² - (2 × 12.4 × 16.5 × cos64° )
= 153.76 + 272.25 - (409.2 cos64° )
= 426.01 - 179.38
= 246.63 ( take the square root of both sides )
AB =
≈ 15.7 cm ( to 1 dec. place )
(2)
Calculate ∠ BCD in Δ BCD
∠ BCD = 180° - (53 + 95)° ← angle sum in triangle
∠ BCD = 180° - 148° = 32°
Using the Sine rule in Δ BCD
=
=
( cross- multiply )
BC × sin32° = 12.4 × sin53° ( divide both sides by sin32° )
BC =
≈ 18.7 cm ( to 1 dec. place )
Answer:
The area is 8 mm squared.
Step-by-step explanation:
The formula for the area of a triangle is 1/2 times base times height. If you plug the base and height in, you can solve this. When you plug it in, you get 1/2 times 2 times 8. This simplifies to 1/2 times 16, which simplifies to 8.