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
Leokris [45]
3 years ago
14

What are the solutions to this equation? 7x2 − 28 = 0

Mathematics
1 answer:
valentina_108 [34]3 years ago
8 0

Answer:

x = 2 or x = -2

Step-by-step explanation:

7x^2 - 28 = 0

7x^2 = 28

x^2 = 28/7 = 4

x = root(4)  or  x = -root(4)

x = 2 or x = -2

You might be interested in
Write an equation of a line that has a slope of -1/2 in each form
konstantin123 [22]

Answer:

y=-1/2x+17

Step-by-step explanation:

y=-1/2x+17

4 0
3 years ago
Describe the dimensions of two different prisms that each have a volume of 2,400 cubic centimeters
taurus [48]
<span>1) 20 cm by 20 cm by 6 cm
2) 40 cm by 30 cm by 2 cm</span>
5 0
3 years ago
Read 2 more answers
If AB vector =(4 5) and PQ vector=(2p 10) are parallel to each other, find the value of p.​
Sedaia [141]

Answer:

Answer:

They both have q+3/2p, so that means that 2PQ=CB and that means they are parallel to each other

Step-by-step explanation:

PQ=PA+QA

PQ=1/2(2q-p)+2/5*5p=q-1/2p+2p=q+3/2p

CB=2q+3p=2(q+3/2p)

Other explanation: It should be written like this PQ=q+3/2p and CB=2q+3p=2(q+3/2p) they are parallel bcs CB=2*PQ.

8 0
3 years ago
state wether the triangles could be proven congruent, if possible, by SSS or SAS. Then, write a congruency statement
ArbitrLikvidat [17]
What are the triangles
4 0
3 years ago
What is the radius of a circle whose equation is x2 + y2 + 8x - 6y + 21 = 0?<br> units
pickupchik [31]

Answer:r=2

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • A towns election commitee expects 5 out of every 7 registered voters to vote in the next
    14·1 answer
  • What is Yasmeen's annual salary if her salary per fortnight is $1610?<br><br><br><br>​
    10·1 answer
  • Is 2i a real or complex root?
    12·1 answer
  • GuYS PLEASE HELP I WILL MARK AS BRAINIEST IF YOU EXPLAIN WELL. ANYWAYS, SOLVE EACH EQUATION BY FACTORING. R^2+9R+8=0 SO MY QUEST
    8·2 answers
  • 1 Look at the example problem. How would the partial
    11·1 answer
  • What is the surface area if this sphere?
    12·2 answers
  • The weight, in pounds, of a newborn baby t months after birth can be modeled by the equation W=1.5t+10. What is the slope of the
    15·2 answers
  • Pleaseeeeeeee giveeeee meeee the right answer
    7·1 answer
  • Which function is the result of translating ƒ(x) = x2 + 14 to the right 5 units and down 6 units?
    8·1 answer
  • 7<br> Find mzx.<br> X (2x + 22)°<br> (9x – 15)<br> Z<br> Y<br> (4x + 11)<br> W
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!