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Q27.

Expert-verified

Found in: Page 406

Book edition Common Core Edition

Author(s) Ron Larson, Laurie Boswell, Timothy D. Kanold, Lee Stiff

Pages 183 pages

ISBN 9780547587776

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Short Answer

Evaluate the expression when $x = - 5$ and $y = - 7$ .
$x + y$

The value of given expression would be $- 12$ .

See the step by step solution

Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1. Given Information.

An expression: $x + y$

Step 2. Calculation.

To find the value of the given expression, we will substitute $x = - 5$ and $y = - 7$ in our given expression as shown below:

role="math" localid="1649434581420" $\begin{matrix} x + y = - 5 + (- 7) (Substituting given values) \\ = - 5 - 7 \\ = - 12 \end{matrix}$

Step 3. Conclusion.

The value of given expression would be $- 12$ .

Most popular questions for Math Textbooks

The brown-headed cowbird does not raise its own offspring. It lays eggs in the nests of other bird species, which then hatch the eggs and raise the young. A scientist investigated whether the growth of a young cowbird is affected by the species of bird that raises it. The scientist’s results for two bird species are shown below.

For each table, draw a graph for the relation given by the ordered pairs $(age,mass)$ . Draw both graphs in the same coordinate plane, and use a different color for each graph.
Compare the graphs from part (a). How is a cowbird’s growth when raised by a red-eyed vireo like its growth when raised by a blue-gray gnatcatcher? How is its growth different?

Evaluate the expression when $x = - 5$ and $y = - 7$ .

$2 x^{2} y$

Tell whether the ordered pair is a solution of $y = 5 x - 7$ .

$(2, 3)$

Represent the relation as a graph and as a mapping diagram. Then tell whether the relation is a function. Explain your reasoning.

$(1, 2), (2, 1), (3, 0), (3, 4), (4, 3)$

Represent the relation as a graph and as a mapping diagram. Then tell whether the relation is a function. Explain your reasoning.

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Pre-algebra

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Short Answer

Evaluate the expression when x=-5 and y=-7.x+y

Step by Step Solution

Step 1. Given Information.

Step 2. Calculation.

Step 3. Conclusion.

Most popular questions for Math Textbooks

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Evaluate the expression when $x = - 5$ and $y = - 7$ .
$x + y$