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Marina86 [1]
3 years ago
8

What is the discriminant of 9x2 + 2 = 10x? –356 –172 28 72

Mathematics
2 answers:
Airida [17]3 years ago
7 0

Answer:

<h2><em>C. 28</em></h2>

Step-by-step explanation:

Iteru [2.4K]3 years ago
5 0

Answer:

its C on edg

Step-by-step explanation:

follow my ifunny "dankmemehistory"

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PLEASE HELP WILL MARK BRAINLIEST
trapecia [35]

Answer: 45 degrees

Step-by-step explanation: I just kinda eyeballed it, as a right angle cut in half in 45 degrees. Hope this helps!

6 0
2 years ago
The sum of the first 50 natural numbers is<br> (1) 1.275<br> (3) 1,250<br> (2) 1,875<br> (4) 950
mash [69]
1275 is the awanser
6 0
3 years ago
Quick algebra 1 question for 10 points!
NeTakaya

Answer:

12.50h = 2500.75

Step-by-step explanation:

He earned $12.50 for 1 hour of work.

For 2 hours, he earned $12.50 × 2.

For 3 hours, he earned $12.50 × 3.

For h hours, he earned $12.50 × h which can be simply written as 12.50h

He earned altogether $2500.75, so 12.50h must equal 2500.75.

Answer: B 12.50h = 2500.75

4 0
1 year ago
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You need to figure out how much money you make each week at the sales job. Assume you work a
Over [174]

Answer:

This true because why ?

Step-by-step explanation:

3 0
3 years ago
1. What is the value of the y variable in the solution to the following system of equations?
ollegr [7]

Part 1)

we have

3x-6y=3 ------> equation A

7x-5y=-11 ------> equation B

Multiply by -7 the equation A

-7(3x-6y)=-7*3

-21x+42y=-21 ------> equation C

Multiply by 3 the equation B

3*(7x-5y)=-11*3

21x-15y=-33 -------> equation D

Adds equation C and equation D

-21x+42y=-21 \\21x-15y=-33\\---------- \\ 42y-15y=-21-33\\27y=-54 \\ y=-2

therefore

<u>the answer Part 1) is the option A </u>

y=-2

Part 2)

we have

3x+y=6

y=-3x+6 ------> equation A

6x+2y=8

Simplify Divide by 2 both sides

3x+y=4

y=-3x+4 ------> equation B

the lines A and B are parallel lines, because the slope m is equal

so

The system has no solution

therefore

<u>the answer Part 2) is the option D</u>

There is no x value as there is no solution to the system.

Part 3)

we have

4x+2y=6 ------> equation A

x-y=3

y=x-3  ------> equation B

substitute equation B in equation A

4x+2[x-3]=6

6x-6=6

6x=12

x=2

therefore

<u>the answer part 3) is the option D</u>

x=2

Part 4)

Let

x---------> The number of one-step equations

y---------> The number of two-step equations

we know that

x+y=1,120

x=1,120-y -------> equation A

3x-2y=1,300 ------> equation B

substitute equation A in equation B

3[1,120-y]-2y=1,300

3,360-5y=1,300

5y=3,360-1,300

5y=2,060

y=412

therefore

<u>the answer part 4) is  the option D</u>

y=412

8 0
3 years ago
Read 2 more answers
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