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sattari [20]
2 years ago
5

F(x) = -2^2 +2 +13 Find f(9)​

Mathematics
1 answer:
saveliy_v [14]2 years ago
8 0

Answer:

jhvghvhgvvvvvvvvvvvvvvvvvvvv

Step-by-step explanation:

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Espano
nikitadnepr [17]

Answer:

The time at which the two trains will meet is 1 hour and 24 minutes

Step-by-step explanation:

The distances between the two trains = 196 miles

The direction of the two trains = Towards each other

The speed of one of the trains = 80 miles per hour

The speed of the other train = 60 miles per hour

Let 't' represent the time at which the two trains meet, we have;

80·t + 60·t = 196

∴ 140·t = 196

t = 196/140 = 7/5

The time at which the two trains will meet, t = 7/5 hours = 1.4 hours = 1 hour, 24 minutes.

3 0
3 years ago
An archaeologist at a dig sets up a coordinate system using string. Two similar artifacts are found one at position (1, 4) and t
myrzilka [38]

Given:

Positions of two artifacts are at points (1, 4) and (5, 2).

To find:

The distance between these two artifacts.

Solution:

Distance formula: The distance between two points is

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Using distance formula, the distance between two points (1, 4) and (5, 2) is

d=\sqrt{(5-1)^2+(2-4)^2}

d=\sqrt{(4)^2+(-2)^2}

d=\sqrt{16+4}

d=\sqrt{20}

d=4.4721359

Round to the nearest tenth of a unit.

d\approx 4.5

Therefore, the distance between two artifacts is 4.5 units.

4 0
2 years ago
Write an algebraic expression for the phrase five less than the product of six and N
GenaCL600 [577]

Answer:

6N - 5

Step-by-step explanation:

five less than the product of six and N: <em>6N</em>

five less than the product of six and N: <em>6N </em><em>- 5</em>

Answer: 6N - 5

6 0
3 years ago
The formula for the perimeter of a rectangle is P=2(l+w). Solve for w.
Pavel [41]

Answer:

w = p/2 - l

Step-by-step explanation:

Hope this helps!!

4 0
3 years ago
Read 2 more answers
Can the mixed fraction 3 and 5/7 be changed into a decimal? Explain how in complete sentences.
pashok25 [27]

Answer:

Yes (3.71428571429)

Step-by-step explanation:

all mixed numbers and fractions can be changed into decimals. The line in a fraction that separates the numerator and denominator can be rewritten using the division symbol. So, to convert a fraction to a decimal, divide the numerator by the denominator. If required, you can use a calculator to do this. This will give us our answer as a decimal.

3 0
3 years ago
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