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yulyashka [42]
3 years ago
15

The sum of 3x^2 +5x-6 and -x^2+3x +9 is

Mathematics
1 answer:
gladu [14]3 years ago
6 0
The answer to the first one is 11x-6 (I think) sorry but idk the second question
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Ashley wants to purchase some bottles of soda to take along to her friend's house for a sleepover. While shopping, Ashley discov
Alik [6]

The option that is the best buy is option 3.

<h3>What is the best buy? </h3>

The best buy is the option that has the lowest average cost. Average cost is the total cost of the bottles divided by the number of bottles.

Average cost = total cost / number of bottles

Option 1: $8.75 / 5 = $1.75

Option 2: $5.97 / 3 = $1.99

Option 3: $6.36 / 4 = $1.59

Option 4: $12.60 / 7 = $1.80

To learn more about division, please check: brainly.com/question/194007

6 0
2 years ago
1.What is the y-intercept of the plane whose equation is 4x + 5y – z = 20?
Katena32 [7]

In case of plane, for y intercept, x and z are o .

So we will get

4(0)+5y-0=20

5y=20

Dividing both sides by 5

y = 4

So the y intercept is (0,4,0).

In second question, x intercept is 1, y intercept is -1 and z intercept is 2 .

So the correct option is the third equation , that is x-y+2z=4 .

8 0
3 years ago
Read 2 more answers
PLSS HELP ME!!!<br><br><br>question <br><br>3x - 4/5= - 1/2<br><br>what is the value of x?​
Minchanka [31]

Answer:

x = \frac{1}{10}

Step-by-step explanation:

Given

3x - \frac{4}{5} = - \frac{1}{2}

Multiply through by 10, the lcm of 5 and 2 to clear the fractions

30x - 8 = - 5 ( add 8 to both sides )

30x = 3 ( divide both sides by 30 )

x = \frac{3}{30} = \frac{1}{10}

7 0
3 years ago
P divided by 28 = -26
juin [17]
The answer is p= -728
5 0
3 years ago
Read 2 more answers
What is the wavelength of a 320 Hz sound traveling 330 m/s?
maw [93]

Answer:1.03125 meter

Step-by-step explanation:

Velocity =330 meter per second

Frequency =320 Hertz

wavelength=velocity ➗ frequency

Wavelength=330 ➗ 320

Wavelength=1.03125 meter

8 0
3 years ago
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