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3 years ago

8

A system of two linear equations is graphed on a coordinate grid. The lines intersect at one point. Which statement about the sy

stem of equations is True or False (; I will Give you the Brainliest.

1 answer:

jasenka [17]3 years ago

5 0

True I hope this helps

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Toenails grow at an average rate of about 0.05 mm per day, and the average toenail is about 3/4 inch long. About how many months

nirvana33 [79]

0.05 mm * ? days = 0.75 inch

Use proportions

1 mm = 0.0394 inch
0.05 mm = 0.00197 inch

0.75 inch / 0.00197 inch = 380.71

380.71 days / 30 days = 12.7 months

7 0

2 years ago

What is the focus of the parabola? y=−1/4x2−x+3

alex41 [277]

Answer: Focus = (-2, 3)

<u>Step-by-step explanation:</u>

$y=-\dfrac{1}{4}x^2-x+3\\\\\rightarrow a=-\dfrac{1}{4},\ b=-1$

First let's find the vertex. We do that by finding the Axis-Of-Symmetry:

$AOS: x=\dfrac{-b}{2a}\quad =\dfrac{-(-1)}{2(\frac{-1}{4})}=\dfrac{1}{-\frac{1}{2}}=-2$

Then finding the maximum by inputting x = -2 into the given equation:

$y=-\dfrac{1}{4}(-2)^2-(-2)+3\\\\y=-1+2+3\\\\y=4$

The vertex is: (-2, 4)

Now let's find p, which is the distance from the vertex to the focus:

$a=\dfrac{1}{4p}\\\\\\-\dfrac{1}{4}=\dfrac{1}{4p}\\\\\\p=-1$

The vertex is (-2, 4) and p = -1

The focus is (-2, 4 + p) = (-2, 4 - 1) = (-2, 3)

3 0

3 years ago

A cylinder has a height of 1 foot and a radius of 1 foot. What is its volume? Use ≈ 3.14 and round your answer to the nearest

scoray [572]

the answer is in your question lol.

its pi, which is

≈ 3.14 feet ^3

^^^ thats

ur answer

8 0

3 years ago

ad-work [718]

Answer:

25% of picking it up the first time and if u didn't pick it up you'll have a 33.3% the second time

Step-by-step explanation:

50/50 chance of it being correct

8 0

4 years ago

A large grandfather clock strikes its bell once at 1:00, twice at 2:00, three times at 3:00, etcetera. what is the total number

erastovalidia [21]

There is a formula for adding consecutive integers.
sum = (n * (n+1)) / 2
for summing 1 through 12 it is
sum = (12 * 13) / 2 = 156/2 = 78
The clock goes through two "12-hour cycles" in a day, so the answer is 2 * 78 or 156 times.

8 0

4 years ago

Read 2 more answers