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
marshall27 [118]
3 years ago
5

Please help me with this algebra PLEEASSEee!!!

Mathematics
1 answer:
amid [387]3 years ago
5 0
11. 5x^2-30=0
+30 to both sides
5x^2=30
÷5 both sides
x^2=6
square root both sides
x= +square root 6 ,- square root 6

12. 4x^2+10=26
-10 both sides
4x^2=16
÷4 both sides
x^2=4
square root both sides
x=+2,-2

13. a=72yrd^2
l=2w
w=?
a=l×w
72=2w×w
72=2w^2
÷2 both sides
36=w^2
square root both sides
w=+6,-6
a measurement can't be - so w=6
Plug into l=2w
l=2×6

l=12
w=6
You might be interested in
Seven subtracted from the product of 5 and a number is at least 24
Dovator [93]

Answer:

5a-7=24

5a=24+7

a=31/5

Step-by-step explanation:

8 0
2 years ago
Help me with this jus look at it and pls answer
ahrayia [7]

Answer:

add the denominator n numerator...n is this middle school work or primary work

5 0
2 years ago
What is the parent function of 15-6x squared over 2
Viktor [21]
The parent function of any a quadratic function is y=x^2
6 0
3 years ago
Read 2 more answers
Please please help mane :((( give explanation plsss :(((
Deffense [45]

Answer:

2x - 1 > 4x + 6 \\ 2x - 2x - 1 > 4x - 2x + 6 \\  - 1 > 2x + 6 \\  - 6 - 1 > 2x \\  - 7 > 2x \\  \frac{ - 7}{2}  > x

I hope I helped you^_^

3 0
3 years ago
Solve x + 18 &gt; 19.<br> I need help solving
lions [1.4K]

Answer:

x>1

Step-by-step explanation:

x + 18 > 19

Subtract 18 from each side

x + 18-18 > 19-18

x>1

4 0
3 years ago
Read 2 more answers
Other questions:
  • A trapezoid was broken into a triangle and rectangle
    8·1 answer
  • A jet departs from an airport flying east. At the same time, a second jet departs from the same airport flying west at a speed o
    9·2 answers
  • 4x+17/8-13x-2/17x-32+x/3=7x/12-x+16
    5·1 answer
  • What is the area of this trapezoid?
    12·2 answers
  • Someone please help me??
    7·2 answers
  • Hellllllllllllllllp points if you answeer correctly
    12·1 answer
  • Which equation is parallel to<br> y =2/3x – 6 and passes through (9, -3)?
    8·2 answers
  • 3 different problems.
    6·2 answers
  • What is an open sentence in math? And how is it different from true or false?
    11·1 answer
  • A pattern rule is square, triangle, circle, oval. What is the 50th shape?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!