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2 years ago

6

Debra , Pablo , and Ravi have a total of $96 in their wallets. Debra hat $6 more than Pablo. Ravi has 3 times what Pablo has . H

ow much does each have

2 answers:

makvit [3.9K]2 years ago

6 0

What da heckk why is dis in the college sectionn????

nekit [7.7K]2 years ago

5 0

Pablo has 26$
Debra has 32$
Ravi has 58$

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What is the hypotenuse of a triangle

Reil [10]

When it's a right triangle, its the long piece that isn't a part of the legs of the right angle.

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2 years ago

L varies directly with the square of Z. L is 12 when Z is 2. Find the value of L when Z is 4.

kow [346]

Answer:

L = 48

Step-by-step explanation:

Given that L varies directly with Z² , then the equation relating them is

L = kZ² ← k is the constant of variation

To find k use the condition L = 12 when Z = 2 , then

12 = k × 2² = 4k ( divide both sides by 4 )

3 = k

L = 3Z² ← equation of variation

When Z = 4 , then

L = 3 × 4² = 3 × 16 = 48

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2 years ago

Evaluate the determinant of the matrix.<br> -4 5 6<br> 0 4 4<br> -2 -5 4<br> 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

8 0

2 years ago

Given g(x) = x square -7x + 1over4 show that the least possible value of g(x) is -12

aliina [53]

Answer:

$-\frac{45}{16}$

Step-by-step explanation:

$g(x)=\frac{x^{2} -7x+1}{4}$

Take the derivate of g:

$g'(x)=\frac{x-7}{4}$

Find x that:

g'(x)=0

<h2>solving:</h2>

$\frac{2x-7}{4}=0\\x=\frac{7}{2}$

This x give the least possible value that are g(7/2):

$g(\frac{7}{2}) =-\frac{45}{16}$

5 0

3 years ago

lyle bought a baseball card for 800 dollars. if the value of the card decreases by 1.5 percent each year, find the value of the

NemiM [27]

Answer:

667.30

Step-by-step explanation:

Well we can right this equation as 800(.985)^x it's an exponential function then we substitute x for 12 and get 667.30

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2 years ago