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
MrMuchimi
3 years ago
14

How do you solve the quadratic equation x2-7=0

Mathematics
1 answer:
12345 [234]3 years ago
5 0
X^2-7=0
Add 7 to both sides.
x^2=7
Find the sqr root of 7.
It's about 2.6
You might be interested in
What is the slope of the line?<br><br> a.-2<br><br> b.-1/2<br><br> c.1/2<br><br> d.2
Anastasy [175]
Using m = (y2-y1)/(x2-x1)

(2-3)/(4-2)
-1/2
The slope is -1/2. b.
3 0
3 years ago
Read 2 more answers
Who chose in person school and why?
wolverine [178]

Answer:

the government or district

Step-by-step explanation:

3 0
3 years ago
A 3-foot wife wood deck will be built around rectangular shaped pool that measures 15feet by 30feet. The resulting shape is also
lisov135 [29]

Answer:

$340

Step-by-step explanation:

The pool is 5 yards wide by 10 yards long, so adding the deck will make the total area 7 yards wide by 12 yards long, or ...

(7 yd)·(12 yd) = 84 yd^2

The pool itself is ...

(5 yd)·(10 yd) = 50 yd^2

so the area of the deck is ...

84 yd^2 -50 yd^2 = 34 yd^2

Wood for each of those square yards costs $10, so the total cost is ...

($10/yd^2)·(34 yd^2) = $340

6 0
3 years ago
An object is dropped from a bridge and allowed to freefall to the ground. The height of the object over time can be modeled usin
ioda
The height at time t is
h(t) = 144 - 16t²

When t = 0, then h = 144.
Therefore the height from the ground is 144 when the object is dropped.

When the object reaches the ground, h = 0.
Therefore
144 - 16t² = 0
t² = 144/16 = 9
t = 3 s

Answer:
The object reaches the ground in 3 seconds.

4 0
3 years ago
Read 2 more answers
Plzzzz help me with this problem
hichkok12 [17]

Answer:

Option B

Step-by-step explanation:

The Europeans moved to American colonies in order to increase their wealth and broaden their influence over world affairs.

7 0
3 years ago
Other questions:
  • Simplify 3(2x-7y)+2(2x+3)=
    8·1 answer
  • A simple random sample of 10 people were asked how many first cousins they have. The results are listed below.
    15·1 answer
  • Amit’s bank charges
    10·1 answer
  • What is (3y)/(2y)&lt;=1
    14·1 answer
  • 12 is what percent of 96
    9·2 answers
  • For the expression 15-15z to have a negative​ value, what must be true about the value of ​z?
    10·1 answer
  • Please help me solve this problem
    7·1 answer
  • I need help on this math
    9·2 answers
  • Question 1: There are 14 apples, 28 cherries, and 9 oranges. What is the
    9·2 answers
  • PLEASE HELP!! The area of a square is 16 square units. Since 4^2 = 16 and (-4)^2 = 16, both 4 and -4 are square roots for 16. Ex
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!