All categories

3 years ago

Substitute x with (-2) and y with (-4) Simplify: 5(41 - x) + {-7(y + x)} =

Mathematics

2 answers:

kozerog [31]3 years ago

6 0

<h2>Answer:</h2>

The value which is obtained on simplifying the expression is:

$257$

<h2>Step-by-step explanation:</h2>

We are asked to simplify the expression which is given in terms of two variables x and y as follows:

$5(41-x)+(-7(y+x))$

Now, we have to simplify the expression for the values of x and y as follows:

$x=-2\ and\ y=-4$

On putting these values in the given expression:

$5(41-(-2))+(-7(-4-2))\\\\=5(41+2)+(-7\times -6)\\\\=5\times 43+42\\\\=215+42\\\\=257$

Gnesinka [82]3 years ago

4 0

Answer:

257

Step-by-step explanation:

5(41-(-2))+{-7(-4-2)}

5(41+2)+{-7(-6)}

5(43)+(42)

215+42

257

You might be interested in

Which one is greater 8.002 or 8.20

Naya [18.7K]

Answer:

Step-by-step explanation:

It would be 8.20 because the 10 place is higher than the 10 place in 8.002

8 0

3 years ago

How can I work it out to find the product of 7-3,7

kirza4 [7]

Answer:

Not sure if this is what you mean but it might be 4 * 7 = 28

Step-by-step explanation:

8 0

3 years ago

Yesterday, Caitlin swam 20 laps in the pool. Hannah swam 4/5 as many laps As Caitlin. How many laps did Hannah swim?

Misha Larkins [42]

Caitlin = 20 laps

Hannah = 4/5 as many laps

Multiply the laps swan by Caitlin (20) by 4/5

20 x 4/5 = 80/5 = 16

Hannah swam 16 laps

6 0

1 year ago

Which of the following nonlinear inequalities is graphed below

Rashid [163]

Answer:

(x²/4) + (y²/16) ≤ 1

Step-by-step explanation:

The general form of the ellipse in the graph is

x²/4 + y²/16 = 1

we want to find the inequality which represents the shaded area this will determine whether which of the following 2 choices are correct

Choice 1: x²/4 + y²/16 ≥ 1

Choice 2: x²/4 + y²/16 ≤ 1

we note that point (0,0) lies inside the shaded area. Which means if we substitute (0,0), it should create an equality that is valid.

try choice 1: 0²/4 + 0²/16 = 0 ≥ 1 (not valid because obviously zero is smaller than 1)

try choice 1: 0²/4 + 0²/16 = 0 ≤ 1 (this is valid, hence choice 2 is the answer)

4 0

3 years ago

Task: Nonpermissible Values for Rational Expressions [30 points] Write a rational expression that has the nonpermissible values

igor_vitrenko [27]

Answer:

A rational expression that has the nonpermissible values $x = 0$ and $x = 17$ is $f(x) = \frac{4}{x\cdot (x-17)}$ .

Step-by-step explanation:

A rational expression has a nonpermissible value when for a given value of $x$ , the denominator is equal to zero. In addition, we assume that both numerator and denominator are represented by polynomials, such that:

$f(x) = \frac{p(x)}{q(x)}$ (1)

Then, the factorized form of $q(x)$ must be:

$q(x) = x\cdot (x-17)$ (2)

If we know that $p(x) = 4$ , then the rational expression is:

$f(x) = \frac{4}{x\cdot (x-17)}$ (3)

A rational expression that has the nonpermissible values $x = 0$ and $x = 17$ is $f(x) = \frac{4}{x\cdot (x-17)}$ .

8 0

3 years ago