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Umnica [9.8K]
3 years ago
8

Ab^2-4/10 when a=4 b=6

Mathematics
1 answer:
hammer [34]3 years ago
4 0

\huge\text{Hey there!}

\large\boxed{\rm{\dfrac{ab^2 - 4}{10}}}

\large\boxed{\rm{\rightarrow\dfrac{\bold{4(6)}^2 -4}{10}}}

\large\boxed{\rm{6^2}}

\large\boxed{\rm{= 6 \times6}}

\large\boxed{\rm{= \bf 36}}

\large\boxed{\rm{\rightarrow\dfrac{4(\bold{36)}- 4}{10}}}}

\large\boxed{\rm{4(36)}}

\large\boxed{\rm{= \bf 144}}}

\large\boxed{\rm{\rightarrow\dfrac{\bold{144} - 4}{10}}}

\large\boxed{\rm{\bold{144} - 4}}

\large\boxed{= \rm{\bf 140}}}

\large\boxed{\rm{\rightarrow\dfrac{\bold{140}}{10}}}

\large\boxed{\rm{= \bf 14}}

\huge\boxed{\rm{Therefore, your\ answer\ is: \mathsf{14}}}\huge\checkmark

\huge\text{Good luck on your assignment \& enjoy your day!}

~\frak{Amphitrite1040:)}

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What is the solution to the system of equations?
Burka [1]

Answer:

(10, -20).

Step-by-step explanation:

y= -5x + 30

x = 10

Substitute x = 10 in the first equation:

y = -5*10 + 30

y = -50 + 30

y = -20.

So the solution is (10, -20).

4 0
3 years ago
Read 2 more answers
Three brothers share 2 sandwiches equally. How much of a sandwich does each brother get?
kykrilka [37]

Answer: Each brother will get 1 and 1/2 of the 2 sandwiches


Step-by-step explanation: Convert 3/2 into a mixed number


7 0
3 years ago
Which graph shows the solution
kodGreya [7K]
The given inequality is:

-5c + 2 ≤ 27

Subtracting 2 from both sides, we get:

-5c + 2 - 2 ≤ 27 - 2
-5x ≤ 25

Dividing by 5 on both sides we get: 

- x ≤ 5

Multiplying by -1 we get:

x ≥ 5

Remember that multiplying or dividing by a negative number changes the direction of inequality symbol.

From the given options, the second graph correctly represents this solution.
6 0
4 years ago
Find the surface area of the prism​
AfilCa [17]

Answer:

156 in^2

Step-by-step explanation:

find the areas of all the faces and add them up

area of a rectangle: bh

area of a trapezoid: \frac{1}{2} (b_1 + b_2)(h)

(5*3)+(6*3)+(5*3)+(3*12)+2(\frac{1}{2}*(6+12)*4) \\=15+18+15+36+2(\frac{1}{2}*18*4)\\=84+2(36)\\=156

the area of the trapezoid is multiplied by 2 because there's a top and bottom

4 0
3 years ago
HELPPP!
Anika [276]

Answer:

  c.  x ≈ 1.71, y ≈ 6.29, z ≈ 60.71

Step-by-step explanation:

You are at a bit of a disadvantage with this problem, because both the hint and the answer choices are incorrect.

The matrix equation is ...

AX=B\\\\\left[\begin{array}{ccc}-1&1&0\\4&3&0\\1&-7&1\end{array}\right]\left[\begin{array}{c}x&y&z\end{array}\right]=\left[\begin{array}{c}8&12&15\end{array}\right]

Contrary to what the hint is telling you, the multiplication by the inverse must be on the left:

A^{-1}AX=A^{-1}B\\\\X=A^{-1}B

Using appropriate tools to compute the inverse, this becomes ...

\left[\begin{array}{c}x&y&z\end{array}\right]=\dfrac{1}{7}\left[\begin{array}{ccc}-3&1&0\\4&1&0\\31&6&7\end{array}\right]\left[\begin{array}{c}8&12&15\end{array}\right]\\\\\left[\begin{array}{c}x&y&z\end{array}\right]=\dfrac{1}{7}\left[\begin{array}{c}-12&44&425\end{array}\right]\approx\left[\begin{array}{c}-1.714&6.286&60.714\end{array}\right]

The closest match is choice C.

6 0
4 years ago
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