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
Alexeev081 [22]
3 years ago
12

Someone please help me? I don't know how to solve these :/

Mathematics
2 answers:
Sever21 [200]3 years ago
8 0
2x^2-x-6=0\\
2x^2-4x+3x-6=0\\
2x(x-2)+3(x-2)=0\\
(2x+3)(x-2)=0\\
x=-\frac{3}{2} \vee x=2
forsale [732]3 years ago
7 0
2x^2 - x - 6 = 0

(2x - 3) (x + 2) = 0

2x - 3 = 0

2x = 3

x =  \frac{3}{2}

x + 2 = 0

x = -2

x =  \frac{3}{2} , 2
You might be interested in
Need to find the answer to this equation. -10×+6=-74
polet [3.4K]

Answer:

fe4trhegweggwerg4twerewerth54h4hyrht5th53h

Step-by-step explanation:

8 0
3 years ago
A parallelogram has vertices E(-8,3), F(2,-2), G(-1,3), and H(-5,-2). What are the coordinates of the midpoint of each diagonal?
d1i1m1o1n [39]
Hello,
Please, see the attached file.
Thanks.

6 0
3 years ago
Which is the definition of a rhombus?
Nonamiya [84]
The answer to the question is b
3 0
3 years ago
The figure à shown on ancient coin which was once used in china.the coin is in the shape of a circle of radius 3cm with a square
lianna [129]

Answer:

(1) 2π - x² = 0 (2) x = 2.5 cm (3) perimeter = 10 cm

Step-by-step explanation:

(1)The area of the circular coin without the inner square removed is πr² where r = 3 cm is the radius of the coin. So, the area of the coin without the inner square removed is πr² = π(3 cm)² = 9π cm²

The area of the square of x sides removed from its center is x².

The area A of the each face of the coin is thus A = 9π - x²

Since the area of each face of the coin A = 7π cm²,

then

7π = 9π - x²

9π - 7π - x² = 0

2π - x² = 0

(2) Solve the equation 2π - x² = 0

2π - x² = 0

x² = 2π

x = ±√(2π)

x = ± 2.51 cm

Since x cannot be negative, we take the positive answer.

So, x = 2.51 cm

≅ 2.5 cm

(3) Find the perimeter of the square

The perimeter of the square, p is given by p = 4x

p = 4 × 2.51 cm

= 10.04 cm

≅ 10 cm

8 0
3 years ago
Which equation is equivalent
yawa3891 [41]
The equation that is equivalent is -2+(-7).
7 0
3 years ago
Other questions:
  • Pls pls pls help me i dont understand and its due in a few mins pls pls help me
    11·2 answers
  • If C is the current value and S is the starting value, write an
    7·1 answer
  • What is the measure of angle x?
    8·2 answers
  • How does the graph of f(x) =-3^2x-4 differ from the graph of g(x)=-3^2x
    13·1 answer
  • When the value of y is 12, then the value of x would be _____.?
    5·1 answer
  • Right triangles are similar. Always, sometimes, never
    10·1 answer
  • Need help on 2 plz I can't understand it
    5·1 answer
  • There are 35 competitors in a marathon. Sixty percent of these finished the race in under four hrs. How many did not?
    15·1 answer
  • Pls answer pls.mill mark brainliest
    10·1 answer
  • The pizza shop offers a 15 percent discount for veterans and senior citizens. If the price of a pizza is $12, how would you find
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!