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mamaluj [8]
3 years ago
15

Three number form a G.P if the first and third number are 5 and 245 respectively, find two possible value for middle number

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
6 0

Answer:

let the middle number be x

then

x/5 = 245/x

x^2 = 1225

x = ± 35

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Factored form of 2x^2+x-3 must show work
frozen [14]

Answer:

(2x+3)(x - 1)

Step-by-step explanation:

Since there is no common number to factor by we must approach this problem differently:

Step 1:

Multiply leading coefficient (2) by the constant term (-3)

2 x -3 = -6

Step two:

Find two numbers that multiply to -6 but add to the middle coefficient (1).

You should find these numbers to be 3 and -2

Step 3:

Replace 1x in the equation with your found numbers

2x^2 - 2x + 3x - 3

Step 4:

Take out the greatest common factor from the first two numbers, and the last two numbers.

For 2x^2 - 2x the greatest common factor would be 2x

For 3x - 3 the greatest common factor would be 3.

Step 5:

Factor out the found common factors

2x(x-1) + 3(x-1)

The values inside the bracket should be the same.

Step 6:

Factor out (x-1)

(x - 1)(2x + 3)

Therefore the factored form is (2x + 3)(x - 1)

4 0
3 years ago
Private nonprofit four-year colleges charge, on average, $26,208 per year in tuition and fees. The standard deviation is $7,040.
kolezko [41]

Answer:

#########

Step-by-step explanation:

5 0
3 years ago
????help me please ??????????
poizon [28]

Answer:

$5.07

Step-by-step explanation:

1. Find the total cost of apples first

1.99 * 3 = $5.97

2. Price of the bread

.89 * 2 = 1.78

3. Price of the box of cereal

3.99

4. Gallon of milk

3.19

5. Add all together

And you come up with 14.93 dollars

6. Subtract by 20

20 - 14.93 = 5.07

8 0
3 years ago
R- (-12.4) = -15.8<br><br>A. -3.4<br>B. -28.2<br>C. 3.4<br>D. 28.2​
never [62]

Answer:

The answer is B.

Step-by-step explanation:

r- (-12.4) = -15.8

r + 12.4 = -15.8

   -12.4     -12.4

r = -28.2

8 0
3 years ago
Read 2 more answers
Solve for x: 2x+1= -3x+36
SSSSS [86.1K]

Answer:

x = 7

Step-by-step explanation:

2x + 1 = -3x + 36

2x + 3x + 1 = -3x + 3x +36

5x + 1 = 36

5x + 1 - 1 = 36 - 1

5x = 35

5x/5 = 35/5

x = 7

7 0
4 years ago
Read 2 more answers
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