All categories

3 years ago

(-3,4) is one of many solutions to the inequality: 2x+y ≥ -2 True or false

Mathematics

2 answers:

RoseWind [281]3 years ago

6 0

Answer:

True

Step-by-step explanation:

(-3,4) it shows that -3 =x and 4 =y

2x + y ≥ -2

Inserting both values into the equation

2(-3) + 4

-6 +4

-2

Answer confirms equation

Blababa [14]3 years ago

3 0

Answer:

True

Step-by-step explanation:

You might be interested in

confirm or disprove ernest's work by selecting two different points and applying the slope formula. be sure to identify the poin

yan [13]

Answer:

Part a) Ernest's calculation was correct

Part b) Ernest's calculation was correct

Step-by-step explanation:

The picture of the question in the attached figure

The complete question is

Ernest calculated the slope of the graph during the uphill climb to be 10. His work is shown below.

Points: (60.900). (15, 450)

Slope : 900-450/60-15=450/45=10

Part a) Determine whether his calculation was correct or incorrect, and then explain why.

Part b) Confirm or disprove Ernest's work by selecting two different points and applying the slope formula. be sure to identify the points you chose

Part a)

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the points

A(60,900),B(15,450)

Remember that

$m_A_B=m_B_A$

step 1

Find $m_A_B$

substitute in the formula

$m_A_B=\frac{450-900}{15-60}\\\\m_A_B=\frac{-450}{-45}=10$

step 2

Find $m_B_A$

substitute in the formula

$m_B_A=\frac{900-450}{60-15}\\\\m_B_A=\frac{450}{45}=10$

therefore

Ernest's calculation was correct, because $m_A_B=m_B_A$

Part b) selecting two different points

we take the points

(0,300) and (50,800) -----> see the attached figure

substitute in the formula of slope

$m=\frac{800-300}{50-0}$

$m=\frac{500}{50}$

$m=10$

therefore

Ernest's calculation was correct

8 0

3 years ago

Please someone help me with this! It’s due tomorrow! First person to tell me the answer and why gets brainlest

vichka [17]

1. 0.95
2. -0.125
3. 3.4
4. 0.7 (repeating 7)
5. 0.73 (repeating 3)
6. 2.6 (repeating 6)

8 0

4 years ago

What is 3×584 in expanded form

Ahat [919]

Three mulitplied by five-hundred eighty four

4 0

4 years ago

Read 2 more answers

Which value is a solution to the inequality x < 4?

densk [106]

The answer is x > 4.5.

Explanation:

-24 > -6(x - 0.5)

-24 > -6x + 3

6x > 3 + 24

6x > 27

x > 27/6

x > 4.5

Hope this helps :)

3 0

3 years ago

0.04(y - 9) +0.16y = 0.12y-0.5 y= (Type an integer or a decimal.)

Vladimir [108]

The answer is going to be y=-1.75 hope this helps!!

3 0

3 years ago