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nikitadnepr [17]
3 years ago
12

Determine whether the parabola x = y2 + 3 opens up, down, left, or right

Mathematics
1 answer:
lapo4ka [179]3 years ago
6 0
x=ay^2+b\\\\a \ \textgreater \  0\ then\ the\ parabola\ op ens\ right.\\\\x=y^2+3\\a=1 \ \textgreater \  0\\\\Answer:\boxed{ope ns\ right}
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In a mall, 1/15 of the stores sell shoes. There are 180 in total. How many stores sell shoes?
8090 [49]
12 stores sell shoes.
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3 years ago
A factory whistle blows every 30 minutes. The clock tower chimes every 15 minutes. If they both sounded at 1:00 p.M.,at what tim
madam [21]

Answer:

1.30 p.M.

Step-by-step explanation:

The factory whistle blowed at 1:00 p.M, and it blows every 30 minutes, so it will blow again at 1:30 p.M.

The clock tower chimed at 1.00 p.M., and it chimes every 15 minutes, so it will chime again at 1:15 p.M, and after that, it will chime again at 1:30 p.M.

So, you will hear them both at the same time at 1:30 p.M.

We can also solve this problem using LCM:

the least commom multiple between 15 and 30 is 30, so we just need to sum 30 to the inicial time (1:00 p.M.), so the time they will "find each other" again is 1.30 p.M.

7 0
3 years ago
She learns that the fabric she wants to use is $7.99 per yard. Find the total cost of 4 yards of fabric. Justify your answer by
sattari [20]

Answer:

$31.96

Step-by-step explanation: multiply without the decimal, the put it in once multiplied

799 * 4 = 3196

then put in the decimal... 31.96

8 0
4 years ago
A scale model of a boat is 6 inches long. The actual boat is 42 feet long. Which statement(s) are true??
Vitek1552 [10]

Answer:

B. 1 in = 7 ft

Step-by-step explanation:

Since on the scale the boat was 6 inches and the actual boat was 42 feet, we need to divide to see how many feet correlate to the number on inches on the scale. So we do 42 / 6, which equals 7. This means that for every inch on the scale, it will be 7 feet in real life.

3 0
3 years ago
Read 2 more answers
What is the exact area of the circle having a radius of 11 miles?
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A = (pi) * r^2
A = 3.14 * 11^2
A = 3.14 * 121
A = 379.94 miles
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4 years ago
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