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Dahasolnce [82]
3 years ago
7

Determine whether the statement is always, sometimes, or never true. Explain your reasoning. - Sometimes. Not every rectangle is

a parallelogram - Sometimes. Not every parallelogram is a rectangle - Always. Opposite sides of a rectangle are parallel - Never. All four angles of a rectangle are right angles, but parallelograms don't have four right angles
Mathematics
1 answer:
KonstantinChe [14]3 years ago
3 0
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Find the zeros of f(x) =x^3+2x^2-3x
lora16 [44]

Answer: 0, 1, -3

Step-by-step explanation:

f(x) = x^3 +2x^2 -3x

f(x) = x(x^2 +2x-3)

f(x) = x(x-1)(x+3)

to find zeroes, plug into f(x) and solve for each value of x. doing this gives 0, 1, and -3

3 0
3 years ago
In an 18-meter race between a tortoise and a hare, the tortoise leaves 23 minutes before the hare. The hare, by running at an av
seropon [69]
We know that:
time=distance/speed
if the tortoise speed is x m/min, then since 0.5 m/hr=1/120 m/min
18/x=23+18/(x+1/120)
solving for x we get:
x=0.08 m/min
speed of hare is:
(0.08+1/120)=0.088 m/min

6 0
3 years ago
What is the total number of digits required in numbering a book that has 1724 pages?
Reptile [31]

Answer:

5,789

Step-by-step explanation:

I got 5,789 because there are 9 one digit numbers. 1-9 -> 9x1=9. There are 90 two digit numbers. (10-99)-> 90x2=180. There are 900 three digit numbers. (100-999)-> 900x3=2700. There are 725 four digit numbers. (1000-1724)-> 724x4= 2900. Then, I added 9+180+2700+2900=5789.

In conclusion, the total number of digits required in numbering a book that has 1724 pages is 5789.

8 0
3 years ago
1
notka56 [123]
7 divided by 2 is 3.5 therefore the answer is:3.5
7 0
3 years ago
QUESTION 1 of 10: Generally, parties of 8 or more require many restaurants to include gratuity of 18% on the check before presen
katen-ka-za [31]
Answer: D) 49.86

276.99 x .18 (or 18%) = 49.8582
6 0
3 years ago
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