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3 years ago

6/12+6/12 and simplify it

2 answers:

7 0

Hey there, since we already have common denominators (the common denominators are 12) we are going to keep the denominator the same and add the numerators, 6+6=12. So, we have 12/12. And you asked to simplify it so 12/12=1. Therefore, 6/12+6/12=1. Hoped I helped. :)

Bezzdna [24]3 years ago

4 0

Its 1 whole because if u add the numerator 6+6 its 12 and the denominator dtays the same so it would be 12/12 which equals 1

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QUESTION 1 What is the mean of 21, 23, 35, 40)? o A. 27 B. 31.75 e C. 19 D.29.75

tangare [24]

Answer:

D. 29.75

Step-by-step explanation:

To determine the mean, you must add up all the numbers and then divide that number by how many numbers you added.

Here,

21 + 23 + 35 + 40

= 119

You added 4 numbers (21, 23, 35, 40),

so, 119 / 4

= 29.75

Hope this helps and a thank won't hurt! :)

3 0

3 years ago

Please help! 4^x*5^y=20, 4^y*5^x=20^2, x+y=?

photoshop1234 [79]

Answer:

x + y are either 2 or 4

Step-by-step explanation:

conclusion x + y = 2 OR 4

7 0

3 years ago

Find the areas of the trapezoids

Sholpan [36]

Answer:

12 units²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = $\frac{1}{2}$ h (b₁ + b₂ )

where h is the perpendicular height and b₁, b₂ the parallel bases

Here h = 4 ( perpendicular distance between the bases ) and

b₁ = SR = 2, b₂ = TA = 4 , then

A = $\frac{1}{2}$ × 4 × (2 + 4) = 2 × 6 = 12 units²

5 0

3 years ago

The length of a shadow of a building is 28m. The distance from the top of the building to the shadow is 38m. Find the height of

AlexFokin [52]

It appears that the Pythagorean theorem can be applied to this problem
(distance to shadow)² = (height of building)² + (length of shadow)²
(38 m)² = (height of building)² + (28 m)²
660 m² = (height of building)²
Then the height of the building is
height of building = √660 m ≈ 25.7 m

7 0

3 years ago

Which set of coefficients of the terms in the expansion of the binomial (x+y)^3 is correct ?

BigorU [14]

We are technically FOILing this out... with a power of 3.

(x+y)(x+y)(x+y)

So we can first factor out the first two "x+y"s.

$( x^{2} +2xy + y^{2} )$ , multiplied by the last "x+y".

$x^{3} +3 x^{2} y +3x y^{2} + y^{3}$

Coefficients are the number that comes in front of a variable.

In this case, 1 comes in front of $x^{3}$ , 3 comes in front of $x^{2} y$ , 3 comes in front of $x y^{2}$ , and 1 comes in front of $y^{3}$ .

Thus: 1, 3, 3, 1.
Answer Choice A

4 0

3 years ago

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