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2 years ago

Which statement describes the first step to solve the equation by completing the square?

Mathematics

2 answers:

Readme [11.4K]2 years ago

6 0

Answer:

It's Multiply both sides of the equation by 1/2, I literally just took the quiz.

mart [117]2 years ago

5 0

Answer:

Your answer should be B

Step-by-step explanation:

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2 1/3 divided by 4/5

irina [24]

Answer: 2.91666666667

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2 years ago

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There are 36 bottles of milk in 3 cases

yawa3891 [41]

I'm guessing you want to know how much is in one case,
36/3 = 12

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2 years ago

Solve for m. 5m + 3m - 8 = 64 a m = 9 b m = 2 c m = -2 d m = 5

Vesnalui [34]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{m = 9}}}}}$

Option A is the correct option

Step-by-step explanation:

$\sf{5m + 3m - 8 = 64}$

Collect like terms

⇒ $\sf{8m - 8 = 64}$

Move 8 to right hand side and change it's sign

⇒ $\sf{8m = 64 + 8}$

Add the numbers

⇒ $\sf{8m = 72}$

Divide both sides of the equation by 8

⇒ $\sf{ \frac{8m}{8} = \frac{72}{8} }$

Calculate

⇒ $\sf{m = 9}$

Hope I helped!

Best regards!!

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2 years ago

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Evaluate the determinant of the matrix. -4 5 6 0 4 4 -2 -5 4 I need the work plz

FromTheMoon [43]

Answer:

-136

Step-by-step explanation:

We have to find the determinant of the following matrix:

$\left[\begin{array}{ccc}-4&5&6\\0&4&4\\-2&-5&4\end{array}\right]$

We can find the determinant by expanding via 1st column. i.e. by taking each element of 1st column and multiplying it by its co-factor matrix as shown below:

det $\left[\begin{array}{ccc}-4&5&6\\0&4&4\\-2&-5&4\end{array}\right]$

= $(-4 \times det \left[\begin{array}{cc}4&4\\-5&4\end{array}\right]) - (0 \times (-4 \times det \left[\begin{array}{cc}5&6\\-5&4\end{array}\right]))+ ((-2) \times det\left[\begin{array}{cc}5&6\\4&4\end{array}\right])\\\\ =-4 \times (16 + 20)-(0)+(-2 \times 20-24)\\\\ =-4(36)+(-2(-4))\\\\ =-144+8\\\\ =-136$

The notation det() stands for determinant of the matrix.

Therefore, the determinant of the given matrix is -136

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2 years ago

Two large numbers of the Fibonacci sequence are F(50)=12,586,269,025 and F(51)=20,365,011,074. If these two numbers are added to

butalik [34]

$F(n)=F(n-1)+F(n-2)$ for $n\ \textgreater \ 1$

So $F(50)+F(51)=F(52)$

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2 years ago

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