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melamori03 [73]

3 years ago

4

As Tia solved the system of equations below, she transformed matrices at different steps during the process.

2 answers:

Vlad1618 [11]3 years ago

5 0

Answer:

The second arrangement is correct.

Step-by-step explanation:

As -a can be written as -1.

-b can be written as -1.

+2c can be written as 2.

And the result is 7 so the second arrangement is the right option.

likoan [24]3 years ago

5 0

Answer:

B on edg

Step-by-step explanation:

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What is the inverse function of f(x) =10^x

LenKa [72]

Step-by-step explanation:

<h2><em>Inverse of f(x) , f−1(x)=logx , which is a logarithmic function.</em></h2>

3 0

3 years ago

Read 2 more answers

A cone has a diameter of 3 inches. The cone holds 12 cubic inches of water.

dmitriy555 [2]

Answer:

The height of the cone is 5.09 inches

Step-by-step explanation:

Given:

The volume of the cone = 12 cubic inches

The diameter of the cone = 3 inches

To Find :

The height of the cone = ?

Solution:

We know that the volume of the cone is

Volume = $\pi r^2\frac{h}{3}$

where

r is the radius of the cone

h is the height of the cone

Now substituting the given values

$12 = \pi (1.5)^2 \frac{ h }{3}$

$\frac{12}{\pi 2.25} = \frac{h}{3}$

$h = \frac{12}{ 2.25 \pi} \times 3$

$h = \frac{ 12}{7.065} \times 3$

$h = 1.698 \times 3$

h = 5.09 inches

6 0

3 years ago

Verify a÷(b+c)not equal(a÷b)+a÷c for each of the following values of a, b and c

just olya [345]

Answer:

a) and b) satisfied the condition of the given equation.

Step-by-step explanation:

Given: $\frac{a}{(b + c)}$ ≠ $\frac{a}{b}$ + $\frac{a}{c}$

Then,

$\frac{a}{(b + c)}$ ≠ $\frac{(ac + ab)}{bc}$

a) For a = 21, b = 4 and c = -2, then we have;

$\frac{21}{(4 + (-2))}$ ≠ $\frac{(21*-2 + 21*4)}{4*-2}$

$\frac{21}{4 - 2}$ ≠ $\frac{(-42 + 84)}{-8}$

$\frac{21}{2}$ ≠ $\frac{42}{-8}$

$\frac{21}{2}$ ≠ $-\frac{21}{4}$

Therefore the condition of the given equation is satisfied.

b) For a = 1, b = 10 and c = 1, then we have:

$\frac{1}{(10 + 1)}$ ≠ $\frac{(1*1 + 1*10)}{10*1}$

$\frac{1}{11}$ ≠ $\frac{(1 + 10)}{10}$

$\frac{1}{11}$ ≠ $\frac{11}{10}$

Therefore the condition of the given equation is satisfied.

5 0

3 years ago

Find the slope of the line passing through the points (-5, 3) and (7, 9)

rodikova [14]

$\sf{\red{Answer}}$

$\sf{m = \frac{1}{2} }$

$\sf{\purple{Explanation}}$

$\sf{m = \frac{y_{2}- y_{1}}{m_{2} - m_{1}} }$

$\sf{m = \frac{9- 3}{7- ( - 5)} }$

$\sf{m = \frac{6}{7 + 5} }$

$\sf{m = \frac{6}{12} }$

$\sf{m = \frac{1}{2} }$

3 0

2 years ago

What is another way to write 7/8x+3/4=-6

Bess [88]

Answer:

$7x + 6 = - 48$

Step-by-step explanation:

The given expresion is

$\frac{7}{8}x + \frac{3}{4} = - 6$

We multiply through by 8 to get:

$8 \times \frac{7}{8}x + 8 \times \frac{3}{4} = - 6 \times 8$

We cancel out to obtain:

$7x + 2 \times 3 = - 6 \times 8$

We simplify to obtain:

$7x + 6 = - 48$

5 0

3 years ago