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soldi70 [24.7K]
3 years ago
15

Use the distributive property to expand the following expression.

Mathematics
1 answer:
Levart [38]3 years ago
3 0

Answer:

-12.8x - 20y + 8.4

Step-by-step explanation:

To do this you just multiply everything by negative 4

so we have 3.2x*-4 + 5y*-4 - 2.1*-4

This gives us

-12.8x - 20y + 8.4

The last term is positive because we multplied a negative by another negative

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Im asking a question because yes
Paladinen [302]

Answer:

I believe the answer would be A!

Step-by-step explanation:

If you need $10 total, then charging $1 for 4 apples would get you $4, and charging $1.50 for 4 oranges would get you $6, totaling $10!

8 0
3 years ago
Given that 110ₓ = 40₅ , find the value of x.
MrRa [10]

Answer:

x = 4

Step-by-step explanation:

110ₓ = 40₅    --------- change all to base ten.

<u>the system called binary</u>

1x²+1x ¹+0x⁰ = 45¹+0*5⁰

x² + x + 0 = 20

x² + x – 20 = 0

solve x using Quadratic equation

        -1 ± \sqrt{1^2 - 4* 1 (-20)}

x =  ------------------------------------

                        2 * 1

x = -5;  x = 4

therefore, x = 4

3 0
3 years ago
Consider two vectors, A and B, in the Cartesian coordinate system. Vector A begins at the origin, and extends to the point (3, 0
RideAnS [48]

Answer:

  B.  (0, 0, -6)

Step-by-step explanation:

\vec{B}\times\vec{A}=\left|\begin{array}{ccc}i&j&k\\0&2&0\\3&0&0\end{array}\right|=-6k

In Cartesian coordinates, this is represented by (0, 0, -6).

6 0
3 years ago
Read 2 more answers
When negative five is subtracted from a number the result is 10. Find the number.
Gala2k [10]

Answer:

Option C, 5

Step-by-step explanation:

<u>Step 1:  Make an expression</u>

Negative five is subtracted from a number the result is 10

n - (-5) = 10

<u>Step 2:  Combine</u>

n - (-5) = 10

n + 5 = 10

<u>Step 2:  Subtract 5 from both sides</u>

b + 5 - 5 = 10 - 5

n = 5

Answer:  Option C, 5

4 0
3 years ago
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Celina measured the height of a window frame as 5.55 feet, but the actual height was 6 feet. What is the percentage of error in
dexar [7]
The answer would be 0.45 feet because you have to take the 6 and subtract 5.55 feet from it. Your equation would be x+5.55=6.
7 0
3 years ago
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