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STatiana [176]
3 years ago
13

Which expression is equivalent to 24 + 64?

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
8 0
It’s 3 brainliest me pls
Cerrena [4.2K]3 years ago
7 0
3. 8(3+8)


Explanation : 8x3 = 24 + 8x8 =64 which is congruent to 24 +64
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D. 10 + 11k can someone plzz help meeee plzzzz
torisob [31]

Answer:

(A).  \frac{15}{2} + \frac{33}{4} <em>k</em>

Step-by-step explanation:

\frac{3}{4} × 2(2 + 4k + 3 + \frac{3}{2} k ) = \frac{3}{2} ( 5 + \frac{11}{2} k ) = \frac{15}{2} + \frac{33}{4} k

8 0
3 years ago
Please help me quick<br> What is 2/3-1/3=
Crazy boy [7]
The answer to 2/3-1/3 is 1/3 since there are 2 1/3 in 2/3.
4 0
3 years ago
Add 2x4 - 6x3 + 5x to the difference between 9x3 + 8x2 - 2 and 4x4 - 2x2 + 8x - 5.
DedPeter [7]

Simplify (x3 +  3x2 + 5x – 4) –  (3x3 – 8x2 – 5x + 6)

The first thing I have to do is take that "minus" sign through the parentheses containing the second polynomial. Some students find it helpful to put a "1" in front of the parentheses, to help them keep track of the minus sign.

Here's what the subtraction looks like, when working horizontally:

(x3 + 3x2 + 5x – 4) – (3x3 – 8x2 – 5x + 6)

(x3 + 3x2 + 5x – 4) – 1(3x3 – 8x2 – 5x + 6)

(x3 + 3x2 + 5x – 4) – 1(3x3) – 1 (–8x2) – 1(–5x) – 1(6)

x3 + 3x2 + 5x – 4 – 3x3 + 8x2 + 5x – 6

x3 – 3x3 + 3x2 + 8x2 + 5x + 5x – 4 – 6

–2x3 + 11x2 + 10x –10

And here's what the subtraction looks like, when going vertically:

x

3

−(3x

3

​

 

+3x

2

−8x

2

​

 

+5x

−5x

​

 

−4

+6)

​

​

In the horizontal addition (above), you may have noticed that running the negative through the parentheses changed the sign on each and every term inside those parentheses. The shortcut when working vertically is to not bother writing in the subtaction sign or the parentheses; instead, write the second polynomial in the second row, and then just flip all the signs in that row, "plus" to "minus" and "minus" to "plus".

\

x

3

–3x

3

−2x

3

​

 

+3x

2

+8x

2

+11x

2

​

 

+5x

+5x

+10x

​

 

−4

–6

−10

​

​

Either way, I get the answer:

–2x3 + 11x2 + 10x – 10

4 0
3 years ago
What is the equation in vertex form of a parabola with vertex (-2, -2) that opens downward and is stretched by a factor of 5?
Galina-37 [17]

Answer:

D).  -5(x + 2)^2 - 2.

Step-by-step explanation:

Parabola which Opens down and vertex (-2, -2) is :

f(x) = a(x + 2)^2 - 2 where a is negative

Stretch by factor 5 gives:

-5(x + 2)^2 - 2.

5 0
3 years ago
When f(x) = -3, what is x?
julia-pushkina [17]

Answer:

not enough info

Step-by-step explanation:

f times x equals -3 there could be many answers like f is 1 x is -3 or f is -3 x is 1 and more

3 0
2 years ago
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