Answer:
1) A
B) 5.818 stops
Step-by-step explanation:
Number One is less than or equal to 21 because the person only has 21 dollars, so she can't spend more than 21.
B can be solved through the equation by first subtracting $5, and then dividing 2.75 by 16.
The answer is 19 degrees F.
15 - (-4) = 19
Answer:
196ft^2
Step-by-step explanation:
direct the diagram as shown in my image attachment
A = 1/2 x (18-(9-7)) x (6+8) = 112ft^2
B = 2 x (6+8) = 28ft^2
C = 7 x 8 = 56ft^2
total area = 112 + 28 + 56 = 196ft^2
for more math tips do check out my insta: learntionary
8n² + 4n - 16 = -n²
8n² + n² + 4n - 16 = -n² + n²
9n² + 4n - 16 = 0
n = <u>-4 +/- √(4² - 4(9)(-16))</u>
2(9)
n = <u>-4 +/- √(16 + 576)</u>
18
n = <u>-4 +/- √(592)
</u> 18
n = <u>-4 +/- 24.33</u>
18
n = -<u>4 + 24.33</u> n = <u>-4 - 24.33</u>
18 18
n = <u>20.33</u> n = <u>-28.33</u>
18 18
n = 1.1294 n = -1.57389
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