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harkovskaia [24]
3 years ago
9

Which expressions are equivalent to 6a(5+d) ?

Mathematics
2 answers:
mrs_skeptik [129]3 years ago
6 0

Answer:

first, second and fourth

Step-by-step explanation:

If you use distribution,

6a(5+d) is the same as  

6a(5) + 6a(d)

Multiplied =  30a + 6ad

So it's the 1st 2nd and fourth choice.

1st is stated above when multiplied out and combined.

2nd is after distribution.

4th choice is basically combination of 1 and 2 where one is combined (first term) and the second one just set up to be multiplied.

It cannot be third because you are multiplying the factors and not adding so you cannot have 11a.

It cannot be last choice because you have different types of terms that cannot be combined (one with a alone and one with ad)

goblinko [34]3 years ago
3 0

Answer:

(6a*5) + (6a*d)

30a + 6ad

30a + (6a*d)

Step-by-step explanation:

Hope you ace your test!

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Step-by-step explanation:

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Given the number line and the expression shown below, select the expression that is equivalent to it.
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3 years ago
Simplify completely. (w15w5)4m need help please
pogonyaev
(w15w5)4m is the same as


4m(15w•5w)


This is because w•15 is still 15w and w•5 is still 5w, it’s just a way of organizing it!!! And it doesn’t matter if the 4m is behind or in front of the (w15w5) because you still distribute normally!

Now let’s distribute!

But wait, there has to be order of operations here !!!
PEMDAS

So let’s do 15w•5w which equals 75w^2 since 15•5 is 75 and when you are multiplying two variables together you get the variable, squared because w•w=w^2

Think of it as 2•2=4 which is 2^2!!!

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zimovet [89]

Answer:

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Step-by-step explanation:

The given function h(t)=-2t^2+8t+10 represents the height, h, in meters, t seconds after the ball is thrown.

Since the ball is thrown off the roof, then ball's height will be equal to the roof's height before being thrown (0 seconds). Therefore, substitute t=0 into the given function h(t)=-2t^2+8t+10:

h(0)=-2(0^2)+8(0)+10,\\h(0)=0+0+10,\\h(0)=\boxed{10\text{ meters}}

Therefore, the building is 10 meters tall.

8 0
3 years ago
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