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katrin2010 [14]
3 years ago
10

I will mark you. i need help fast thank you!

Mathematics
1 answer:
Ganezh [65]3 years ago
5 0

Answer:

If I'm correct it should be the second one

Step-by-step explanation:

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M is inversely proportional to r if m= 9 when r= 4 find m when r=2
bazaltina [42]

m=18 when r = 2.

Step-by-step explanation:

Given,

m∝\frac{1}{r}

So,

m = k×\frac{1}{r},--------eq 1, here k is the constant.

To find the value of m when r = 2

At first we need to find the value of k

Solution

Now,

Putting the values of m=9 and r = 4 in eq 1 we get,

9 = \frac{k}{4}

or, k = 36

So, eq 1 can be written as m= \frac{36}{r}

Now, we put r =2

m = \frac{36}{2}

or, m= 18

Hence,

m=18 when r = 2.

4 0
3 years ago
Hlp!
zzz [600]

Answer:

Option B

x ≥ (-5)

Step-by-step explanation:

<h3><u>Given</u>;</h3>
  • -3(x + 4) ≥ x + 8

So,

-3(x + 4) ≥ x + 8

-3x – 12 ≥ x + 8

Add both sides 12 we get,

-3x – 12 + 12 ≥ x + 8 + 12

-3x ≥ x + 20

Similarly, subtract x from both sides we get,

-3x – x ≥ x – x + 20

-4x ≥ 20

Then, divide both sides by (-4) we get,

-4x/(-4) ≥ 20/(-4)

x ≥ -5

Thus, The answer is x ≥ (-5).

7 0
2 years ago
A polynomial is factored using algebra tiles. Which polynomial was factored?
alexdok [17]

The algebra tiles shows the polynomial x² - 2x - 8

<h3>Polynomial</h3>

Polynomial is an expression that involves only the operations of <em>addition, subtraction, multiplication</em> of variables.

Algebra tiles are square and rectangle shaped tiles or tiles that represent numbers and variables.

From the image:

Polynomial = x² + x + x - x - x - x - 1 - 1 - 1 - 1 - 1 - 1 - 1 - 1 = x² - 2x - 8

The algebra tiles shows the polynomial x² - 2x - 8

Find out more on Polynomial at: brainly.com/question/2833285

4 0
2 years ago
The mean of 5 numbers is 4. What happens to the mean if the number 13 is added to the data set?
Temka [501]
It’s option D. Hope it helps
8 0
3 years ago
Read 2 more answers
Write anumerical expression below : a. add14 and x b. the product of 6 and y
PtichkaEL [24]
A.
14+x

B. 6y

Hope I helped!
7 0
3 years ago
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