1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vovangra [49]
3 years ago
9

Which of the following equations have infinitely many solutions?

Mathematics
1 answer:
Bad White [126]3 years ago
7 0

Answer:

B

Step-by-step explanation:

A. 6x + 35 = - 6x - 35,

12x = - 70

x = - 70/12

B. - 6x + 35 = - 6x + 35

    - 6x + 6x = 35 - 35

        0 = 0 infinitely many solutions

C. 6x+35= - 6x+35

12x = 0

x = 0

D. -6x+35= - 6x-35

- 6x + 6x = - 35 - 35

0 = - 70 false, no solutions

You might be interested in
The Perimeter of the park is 318 m. Determine the length of the park.
Bond [772]

Answer:

Step-by-step explanation:

h=-5t²+135

when t=3 s

h=-5(3)²+135=-45+135=90 m

4 0
3 years ago
Please help a girl out
xxMikexx [17]

Answer:

Quadratic formula is in the 2nd picture.

Step-by-step explanation:

Answers in the photo.

Solve the equation for r by finding a,b, and c  of the quadratic  then applying the quadratic formula.

3 0
2 years ago
Read 2 more answers
A school bought pens, each costing $1, and pencils, each costing $0.5. The cost of the whole purchase was $220. How many pens an
Aleks [24]

Answer:

<u>The number of pens = 120 and the number of pencils = 200</u>

Step-by-step explanation:

Let the number of pens x, and the number of pencils is y

the cost of one pen $1, and the cost of one pencil $0.5

The cost of the whole purchase was $220

1 * x + 0.5 * y = 220

x + 0.5 y = 220 ⇒ eq.(1)

there were 80 more pencils than pens

y - x = 80 ⇒ eq.(2)

from eq.(2) x = y - 80

By substitution with x from the last equation at eq.(1)

∴ (y - 80) + 0.5 y = 220

1.5y = 220 + 80 = 300

y = 300/1.5 = 200

x = y - 80 = 200 - 80 = 120

<u>So, the number of pens = 120 and the number of pencils = 200</u>

7 0
3 years ago
Can someone please explain this
Pani-rosa [81]

Answer:

x = 7

Step-by-step explanation:

There is a total of 180 degrees in a triangle. To solve you add the other angles and set = to 180 then solve for x

180 = 33 + 90 + 7x +8

172 = 33 + 90 + 7x

139 = 90 +7x

49 = 7x

7 = x

6 0
2 years ago
How do you divide 2/x ÷ 4/3x? The process would be much appreciated
Fed [463]
Invert and multiply

2/x*(3/(4x))

Then proceed to simplify

(You must simplify twice might I add)
3 0
2 years ago
Other questions:
  • If lim as x approaches 3 at f(x)/(2x-6)=f'(3)=0 which of the following must be true? I) (3,0) is a critical point of f(x). II) f
    15·1 answer
  • An elecrrician charge a $50 house call fee and $65 per hour for ghe wok. Is it expensive to have electrician work for 6 hours of
    8·2 answers
  • Consider two congruent triangular prisms. Each rectangular face of prism A has a width of x + 2 and each rectangular face of pri
    6·2 answers
  • (-2x + 6)1/5 = (-8 + 10x)1/5
    10·1 answer
  • Why do scientist use models?
    10·2 answers
  • What is the approximate volume of a cone with a height of 9 ft and radius of 3 ft?
    9·2 answers
  • Error Analysis A problem on a test says that 70% of people enjoy the beach. The students are
    9·1 answer
  • Unit rate for 5/2 and 1/4
    13·1 answer
  • Solve for x. please explain in detail
    12·1 answer
  • How much is the product of<br> 14 and 16 less than 290
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!