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3 years ago

Algebra- is this correct

Mathematics

1 answer:

Black_prince [1.1K]3 years ago

3 0

This is the distributive property because you're breaking up the equation and putting it in simpler terms.

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Two-step equations - integers

Andrews [41]

Question 1. -3 + v5 = 0
Work : -3 + 5v = 0
5v = 3 ( divide )
answer v = 3/5

Question 2. 1 - 7B = -20
work : -7b = -20 - 1
-7b = -21 ( divide )
answer b = 3

question 3 : -k - 5 = 0
work : -k = 5
answer : k = - 5

Question 4 : -1 + 8a = 129
work : 8a = 129 + 1
8a = 130 (divide )
answer a = 65/4

3 0

3 years ago

Read 2 more answers

What is 3 times 5 divided by 1 half plus 16

elixir [45]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Differentiating a Logarithmic Function in Exercise, find the derivative of the function. See Examples 1, 2, 3, and 4.

natulia [17]

Answer:

$g'(x)=\frac{2e^x-e^{-\frac{x}{2}}}{2(e^x+e^{-\frac{x}{2}})}$

Step-by-step explanation:

We are given that a function

$g(x)=ln(e^x+e^{-\frac{x}{2}})$

We have to find the derivative of function

Differentiate w.r.t x

$g'(x)=\frac{1}{e^x+e^{-\frac{x}{2}}}\times (e^x+e^{-\frac{x}{2}}\times (-\frac{1}{2}))$

By using formula

$\frac{d(lnx)}{dx}=\frac{1}{x}$

$\frac{d e^x}{dx}=e^x$

$g'(x)=\frac{e^x-\frac{e^{-\frac{x}{2}}}{2}}{e^x+e^{-\frac{x}{2}}}$

Hence, the derivative function

$g'(x)=\frac{2e^x-e^{-\frac{x}{2}}}{2(e^x+e^{-\frac{x}{2}})}$

3 0

4 years ago

10/21 divided by (-15/7)

Whitepunk [10]

Answer:

Find the reciprocal of the divisor

Reciprocal of

15/7 : 7/15

Now, multiply it with the dividend

So, 10/ 21 ÷ 15/7 = 10/21 × 7/15

= 10 × 7/ 21 × 15 = 70/ 315

After reducing the fraction, the answer is

2/9

4 0

3 years ago

Suppose the coefficient matrix of a linear system of four equations in four variables has a pivot in each column. Explain why th

abruzzese [7]

Answer:

the matrix described in the question is a linearly independent matrix, and linearly dependent matrix has a unique solution. <em>see further explanation below</em>

Step-by-step explanation:

For any matrix to have a pivot column in all its column, it means that the matrix must be linearly dependent

Thus, as the columns are linearly independent , the system of equation have a unique solutions .

8 0

3 years ago