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DENIUS [597]
3 years ago
10

Expand and simplify 4(x+2)-3 (x-2)

Mathematics
1 answer:
rodikova [14]3 years ago
6 0
Expand: 4x+8-3x+6
simplify: x+14
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How many miles are equivalent to 3.1 kilometers? 1 kilometer is about 0.62 mile
Anton [14]

Answer:

1.922 miles is equivalent to 3.1 kilometers.

Step-by-step explanation:

Given:

1 km = 0.62 miles.

3.1 km = ? miles

Now, in order to find the number of miles equivalent to 3.1 km, we use unitary method with the help of the conversion factor.

From the conversion factor, we can conclude that kilometer is a smaller unit compared to that of mile.

So, conversion factor = \frac{0.62\ miles}{1\ km}

The formula to transform 'n' kilometers to miles is given as:

=Conversion\ factor\times n

Therefore, 3.1 km = \frac{0.62\ miles}{1\ km}\times 3.1\ km

3.1 km = 1.922 miles

Therefore, 1.922 miles is equivalent to 3.1 kilometers.

4 0
3 years ago
If side A is twice as long as B and C is 25 using the Pythagorean Theorem,What are the lengths of side A and B? Round to the nea
777dan777 [17]

Answer:

<u>The lengths of side A is 22.4 and B is 11.9</u>.

Step-by-step explanation:

Given:

If side A is twice as long as B and C is 25 using the Pythagorean Theorem.

Now, to find the lengths of side A and B.

Let the side B be x.

So, the side A be 2x.

Side C = 25.

Now, to solve by using Pythagorean Theorem:

A² + B² = C²

(2x)^2+(x)^2=(25)^2

4x^2+x^2=625

5x^2=625

<em>Dividing both sides by 5 we get:</em>

x^2=125

<em>Using square root on both sides we get:</em>

x=11.18.

<u>B rounding to the nearest tenth =  11.9.</u>

Now, to get A by substituting the value of x:

2x\\=2\times 11.18\\=22.36.

<u>A rounding to the nearest tenth =  22.4.</u>

Therefore, the lengths of side A is 22.4 and B is 11.9.

8 0
3 years ago
What’s the gcf of 2x+6?
Amiraneli [1.4K]

Answer:

25

Step-by-step explanation:

7 0
3 years ago
Which is greater: 5 yards or 150 inches?
il63 [147K]

Answer:

5 yards.

Step-by-step explanation:

5 yards = 180 inches

4 0
3 years ago
A circle has a radius of 3 feet. Use 3.14 for π, and drag and drop the correct answers for each problem below.
enyata [817]

Answer:

A. 28.27

B. 6ft

C. 18.85

Step-by-step explanation:

:)

4 0
3 years ago
Read 2 more answers
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