3 years ago

6. 2x+(-4)y (if x = -4 and y=-2) Evaluate each expression using the variable replacement

Mathematics

2 answers:

aleksandr82 [10.1K]3 years ago

8 0

Answer:

-4

Step-by-step explanation:

( 2 * - 2 ) + ( -4 * - 2 )

= -4 + 8

= -4

ASHA 777 [7]3 years ago

3 0

Answer:

-4

Step-by-step explanation:

(2)(-2)+(-4)(-2)

=(-4) + 8

= (-4)

You might be interested in

Find the volume of this square based pyramid. 5 ft 6 ft [ ? jft

artcher [175]

Answer:

v=50

Step-by-step explanation:

use the formula V=A(h/3), where V is the volume and A is the area of the base. a=5 h=6 5×6=30 5×3=15 30+15=45 45 rounded to neared whole number which is 50

7 0

3 years ago

Michael is taking a survey of students at his high school to find out how many hours they work per week. He surveys all of the s

Fofino [41]

No, he should have surveyed students in his PE class since all grades are represented in that class.

5 0

2 years ago

Read 2 more answers

Simplify this algebraic expression. z- 4/4+8 A. Z-7 B. Z+9 C. 2-3 D. Z+7

Oduvanchick [21]

Answer:

(D) : Z+7

Step-by-step explanation:

−

}}

z−1+8

3 0

2 years ago

Read 2 more answers

Calcula el ancho de un terreno rectangular si el largo mide 20 metros y la superficie es de 280 metros cuadrados

Anna35 [415]

Answer:14 m

Step-by-step explanation:

Dada

larga $l=20\ m$

superficie $A=280\ m^2$

Suponga que el ancho es w

La superficie está dada por el producto de la longitud y la anchura.

$\therefore A=lw\\\Rightarrow 280=20\times w\\\Rightarrow w=14\ m$

Por lo tanto, el ancho es de 14 m.

4 0

3 years ago

Adding decimals 2.134 + 345.04 = ?

nadezda [96]

Answer: 347.175

Step-by-step explanation: line up the desimal up it will help

3 0

2 years ago

Read 2 more answers