Answer:
200ft squared
Step-by-step explanation:
4 x 10 x 10 = 400
400 divided by 2 = 200
200 is the answer
2x - y = -2
x = 14 + 2y
Plug in the x equation
2(14+2y) - y = -2
Distribute
28 + 4y - y = -2
Combine variables
28 + 3y = -2
Subtract 28 on both sides
3y = -30
Divide the y
y = -10
Answer: (-2, 1), (-4, -3)
Step-by-step explanation:
y = x² + 8x + 13
y = 2x+5
x² + 8x + 13 = 2x+5
x² + 6x + 13 = 5
x² + 6x + 8 = 0
x² + 2x + 4x + 8 = 0
(x+2)(x+4)=0
<u>x=-2 or x=-4</u>
y=2(-2)+5
y=-4+5
<u>y=1</u>
y=2(-4)+5
y=-8+5
<u>y=-3</u>
Answer:
r = 9
Step-by-step explanation:
Given
r + 3 = 3(r - 5) ← distribute
r + 3 = 3r - 15 ( subtract r from both sides )
3 = 2r - 15 ( add 15 to both sides )
18 = 2r ( divide both sides by 2 )
9 = r
This question is incomplete and has not be written correctly.
Complete Question:
The smallest hummingbird is the Bee hummingbird. It has a mass of about 1 1/2 grams. The mass of a larger type of hummingbird is about 5 times the mass of the Bee hummingbird.
What is the mass of the larger humming bird?
Answer:
7 1/2 grams
Step-by-step explanation:
The mass of Bee humming bird is given in the question as = 1 1/2 grams
Mass of the larger humming bird = 5 times the mass of Bee humming bird
The mass of the larger humming bird is calculated as:
5 × 1 1/2 grams = 5 × 3/2 grams
= 15/2 grams = 7 1/2 grams
Therefore, the mass of the larger humming bird is 7 1/2 grams
