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3 years ago

Find the least common denominators of these two rational experssions -1/y and 2/5y

1 answer:

algol133 years ago

6 0

The least common denominator is 5y, and can be obtained by multiplying
-1/y by 5/5 to get -5/5y.

If we add the numbers using the least common denominator, we get:
-5/5y + 2/5y = -3/5y

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A counter top is 18 feet long and 3 feet wide. What is the area of the counter top in square meters? Use the conversion 1 foot =

podryga [215]

Answer:

Area of the counter top is $5.02\ m^2$ .

Step-by-step explanation:

Given:

Length of the Counter top = 18 feet

Width of the counter top = 3 feet

We need to find the area of the counter top is square meter;

Solution:

Now we need to find the area of the counter top is square meter.

But given data is in feet so we will first convert feet into meters.

1 foot = 0.305 meter.

So 18 feet = Number of meters in 18 feet.

By Using Unitary method we get;

Number of meters in 18 feet = $18\times 0.305 = 5.49\ m$

Length of the Counter top = 5.49 m

Also 3 feet = Number of meters in 3 feet.

Again Using Unitary method we get;

Number of meters in 3 feet = $3\times 0.305 = 0.915\ m$

Width of the counter top = 0.915 m

Now we know that;

Area of the counter top can be calculated by multiplying Length of the counter top with width of the counter top.

framing in equation form we get;

Area of the counter top = $5.49\times 0.915 = 5.0233\ m^2$

Rounding up to 2 decimals we get;

Area of the counter top = $5.02\ m^2$

Hence Area of the counter top is $5.02\ m^2$ .

3 0

3 years ago

Expand and simplify (2c+1)(2c+3)

Mandarinka [93]

The answer would be 4c^2+8c+3

The arrow stands for squared off you didn’t already know but these are very easy to solve because you just multiply it out

6 0

2 years ago

Plzzzzz help will give brain and points!!! Explain why a quadratic equation with a positive discriminant has two real solutions,

NISA [10]

Answer:

The given equation is -2x^2 = -8x + 8

This can be rewritten as 2x^2 - 8x + 8 = 0

Here the value of a =2, b = -8 and c = 8

Discriminant = b^2 - 4ac

Now plug in the above values in the discriminant, we get

= (-8)^2 - 4*2*8

= 64 - 64

= 0

Here the discriminant is 0, so we will get one real root.

The discriminant is equal to 0, which means the equation has one real number solution.

Hope this will helpful.

Thank you.

5 0

3 years ago

Help me plz really need to get this done

Montano1993 [528]

3.3
$6 \frac{7}{8} = \frac{55}{8}$

-1/8 - 55/8 = -56/8 = -7

3.4
(-4x7)/10 = -28/10 = -14/5

3.5
-19/2 ÷ 38/7 <=> -19/2 x 7/38 and simplify = -7/4

3 0

3 years ago

Read 2 more answers

8 balls cost 16 dollars.how much do 32 balls cost

meriva

8 balls = 16
1 ball = 2
32 balls = 64

5 0

3 years ago