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madam [21]
3 years ago
11

I believe the answer is b is this correct?

Mathematics
2 answers:
zhuklara [117]3 years ago
6 0

Answer:b

Step-by-step explanation:

alexandr402 [8]3 years ago
3 0
Yes,the answer is B
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50 POINTS!!!
user100 [1]

Answer:

{(2, 8), (3, 5), (3,0)}

Step-by-step explanation:

6 0
3 years ago
Solve the simultaneous equation y-2x+1=0 and 4x^2+3y^2-2xy=7
Lapatulllka [165]

The first equation is y-2x+1=0

y=2x-1 (Equation 1)

The second equation is 4x^{2}+3y^{2}-2xy=7 (Equation 2)

Putting the value of x from equation 1 in equation 2.

we get,

4x^{2}+3(2x-1)^{2}-2x(2x-1)=7

4x^{2}+3(4x^{2}+1-4x)-4x^{2}+2x=7

by simplifying the given equation,

12x^{2}-10x-4=0

6x^{2}-5x-2=0

Using discriminant formula,

D=b^{2}-4ac

D=25-4 \times 6 \times -2 = 73

Now the formula for solution 'x' of quadratic equation is given by:

x=\frac{-b+\sqrt{D}}{2a}  and  x=\frac{-b-\sqrt{D}}{2a}

x=\frac{5+\sqrt{73}}{12}  and x=\frac{5-\sqrt{73}}{12}

Hence, these are the required solutions.

8 0
3 years ago
How did you get 40 as the answer
SSSSS [86.1K]
What is the question?
7 0
4 years ago
Simplify (-36x)(-1/3)(2/9)(-4y)
den301095 [7]

Answer:

\frac{32xy}{3}

Step-by-step explanation:

3 0
4 years ago
Gary bought 32 lb of potting soil this week this amount is 6 lb more than twice the amount of potting soil he bought last week a
lys-0071 [83]
Let the amount of potting soil bought last week be x

We know that this week's amount is 32 lb
We also know that this week's amount is double the amount of last week's plus 6 lb 

So we write the equation:
32 = 2x+6

Solving this equation:
32=2x+6 ⇒ subtracting 6 from both sides
32-6=2x+6-6
26=2x ⇒ Dividing both sides by 2
\frac{26}{2}= \frac{2x}{2}
13=x

The answer is: 13
4 0
3 years ago
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