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spin [16.1K]
3 years ago
11

Solve x2 – 2x = 15 by applying the quadratic formula.

Mathematics
1 answer:
julia-pushkina [17]3 years ago
5 0

Answer:

x = -60 and 20300

Step-by-step explanation:

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Li-Ming owns an ice cream shop. On Saturday evening from 6:00 PM to 7:00 PM, 80 people entered her shop. On Tuesday from 3:00 PM
KengaRu [80]
To find the percent decrease from Saturday to Tuesday, you will find the difference between the number of customers on those days and divided by the total number of customers on Saturday.

By dividing this you will get a decimal, which then can be converted to a percent.

80-17= 63

63/80 = 0.7875
0.7875 = 78.75%

There was a 78.75% decrease from Saturday to Tuesday.
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3 years ago
Order the following numbers from least to greatest.
gogolik [260]

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-45, 12, 83, 90

Step-by-step explanation:

5 0
3 years ago
HELP
jenyasd209 [6]

Answer:

20 cyclists

Step-by-step explanation:

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5 0
3 years ago
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Please help me on this question
s2008m [1.1K]
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4 0
3 years ago
The volume of a cone is 16 pi cubic inches. Its height is 12 inches. What is the radius of the cone? 2 in. 4 in. 12 in. 16 in.
mart [117]

The radius of cone is 2 inches

<em><u>Solution:</u></em>

<em><u>The volume of cone is given by formula:</u></em>

V = \frac{\pi r^2h}{3}

Where,

"V" is the volume of cone

"r" and "h" are the radius and height of cone respectively

Given that, volume of a cone is 16 pi cubic inches

Its height is 12 inches

Therefore, we get,

V = 16 \pi cubic inches

h = 12 inches

r = ?

<em><u>Substituting the values in formula, we get</u></em>

16 \pi = \frac{ \pi \times r^2 \times 12}{3}\\\\16 = 4r^2\\\\r^2 = 4\\\\r = \pm 2

Since, radius cannot be negative, ignore r = -2

Thus radius of cone is 2 inches

8 0
3 years ago
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