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2 years ago

What is the value of the expression 3x2 – 2y, if x - -2 and y = -4. 0 20 52 O-8 02

Mathematics

1 answer:

Dafna11 [192]2 years ago

6 0

Answer:

I think the answer is 20....I'm so sorry if that is wrong :[

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3 years ago

Which represents the function shown in this table?

aivan3 [116]

The answer would be c

Step-by-step explanation:

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3 years ago

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2 years ago

A plant that manufactures metal plates has a quality control team to check that the plates are the right size. A rectangular pla

Kamila [148]

Answer:

Given the size of rectangular plate in advertisement = 5 cm by 3cm.

Given the condition for length should be = 0.25 of 5 cm

Step-by-step explanation:

Now, have to write the inequality from the given data.

Therefore, 5- 0.25 ≤ L ≤ 5+.25

4.75 ≤ L ≤ 5.25

We know that the area of a rectangle = Length × Width.

Width = 3

Thus, the area is 3 × L

3× (4.75) ≤ 3×L ≤3× (5.25)

14.25 ≤ 3×L ≤ 15.75

So the minimum area is 14.25 cm^2

The maximum area is 15.75 cm^2

4 0

2 years ago

Find the equation of the line that passes through point (6, 1) with the x-intercept of 2.

34kurt

<u>Answer:</u>

○ $y = \frac{1}{4}x - \frac{1}{2}$

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

To find the equation of the line, let's first consider the points whose coordinates we have been given:

• (6, 1)

• (2, 0).

The point (2, 0) is what is called the x-intercept, which is the point where the line crosses the x-axis. This means that at this point, the y-coordinate of the line is 0.

Next, let's calculate the slope (gradient) of the line using the formula:

$m = \frac{y_2 - y_1}{x_2 - x_1}$

where:

m = gradient,

$(x_2, y_2)$ and $(x_1, x_2)$ = points on the line.

Using the formula:

$m = \frac{1 - 0}{6 - 2}$

⇒ $m =\bf \frac{1}{4}$

Finally, now that we have two points on the line as well as the line's slope, we can use the following formula to find the equation of the line:

$\boxed{y - y_1 = m(x - x_1)}$

You can use any of the points on the line as $y_1$ and $x_1$ .

Using (2, 0):

$y - 0 = \frac{1}{4}( x - 2)$

⇒ $y = \frac{1}{4}x - \frac{1}{2}$

Therefore the equation of the line is $y = \frac{1}{4}x - \frac{1}{2}$ .

Learn more about point-slope form at:

brainly.com/question/15143525

6 0

1 year ago

What is the value of the expression 3x2 – 2y, if x - -2 and y = -4. 0 20 52 O-8 02​

What is the value of the expression 3x2 – 2y, if x - -2 and y = -4. 0 20 52 O-8 02