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Varvara68 [4.7K]

3 years ago

9

Which is the best description of the equivalency of the two expressions?

1 answer:

Reil [10]3 years ago

8 0

Answer:

They are equivalent expression because when x = 2, the expressions have the same value.

Step-by-step explanation:

Equivalent expressions are identified when the value of the variable can be substituted in each equation and the same result is found. So, even though the expression may look different, when you put the same number in for the variable, you will get the same value. You can also 'simplify' your expressions by combining like terms:

Expression 1: 5x² - 2x + 6x - 4 + 3 = 5x² + 4x - 1

Expression 2: 6x² - x² - 6x + 10x + 6 - 7 = 5x² + 4x -1

Since both expressions are the same after simplifying, they will produce the same value when x = 2, so they are equivalent.

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Can someone please help

Free_Kalibri [48]

Answer:

I think it is 26 and 2

Step-by-step explanation:

39÷6=6.5

4×6.5=26

13÷6.5=2

6 0

3 years ago

Read 2 more answers

Determine the lowest common denominator and solve the calculation 6/9 -2/3 show work

g100num [7]

Answer:

Step-by-step explanation:

6/9 - 6/9 = 0

5 0

3 years ago

Managers at an automobile manufacturing plant would like to estimate the mean completion time of an assembly line operation, . T

Vinil7 [7]

Answer:

The appropriate answer is "144".

Step-by-step explanation:

Given:

Population standard deviation,

$\sigma=10.4$

Margin of error,

$E=1.7$

$CL=95$ %

$CL=1-\alpha$

Or,

$\alpha=1-CL$

$=1-0.95$

$=0.05$

Now,

Critical value,

= $Z_{\frac{\alpha}{2} }$

= $Z_{\frac{0.05}{2} }$

= $1.96$

The minimum sample size will be:

⇒ $n=\frac{Z^2_{\frac{\alpha}{2} }(\sigma)^2}{E^2}$

By putting the values, we get

$=\frac{(1.96)^2(10.4)^2}{(1.7)^2}$

$=\frac{415.5074}{2.89}$

$=143.774$

or,

$=144$

3 0

3 years ago

SOMEONE CAN HELP ME , PLEASE I NEED THIS NOW

Rudik [331]

You have 2 shapes, a rectangle and a half circle.

Area of rectangle = 3 x 8 = 24

Area of a half circle = 1/2 x pi x r^2

Area of half circle = 1/2 x 3.14 x 4^2

Area of half circle = 25.12

Total area = 24 + 25.12 = 49.12 square units

5 0

3 years ago

Read 2 more answers

Find the area of the shape.

mars1129 [50]

Answer:

<u>27π units²</u>

Step-by-step explanation:

The rest of the question is the attached figure.

This shape represents (3/4) of a full circle.

So, find the area of a full circle with radius 6 units, then multiply the result by 3/4 to obtain the area of the given shape.

Area of full circle = π r²

So, Area of full circle = π(6)² = 36π units²

Then the area of the given shape is = <u>(3/4)(36π) = 27π units²</u>

8 0

3 years ago