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kvasek [131]
3 years ago
12

Quadratic equations question 1 ^^

Mathematics
1 answer:
ser-zykov [4K]3 years ago
7 0

bx^2+32x=4x(x-a)\\ bx^2+32x=4x^2-4ax\\\\ b=4\\\\ -4a=32\\ a=-8\\\\ \boxed{ab=-8\cdot4=-32}

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Help pleaseeeeeeeeeeeeeee
My name is Ann [436]

y=3\frac{3}{5}

6 0
3 years ago
Read 2 more answers
15 points and brainliest!! please help !!
Arte-miy333 [17]
This will be solved by solving for x first. Firstly you multiply the top equation by 2 and the bottom by -3. This will change both equation to (top)-10x+6y=-54 and (bottom) 27x-6y=-57. Now when you add the factors the y-values cancel out leaving you with; 17x=-3. now you have to divide by 17 on both sides giving you x=-0.17647058823 (not the prettiest solution but you can round if you want to). After that pick an equation to solve for y (I'm picking the top); the equation will be 5(-0.17647058823)+3y=-27. multiply the negative decimal and 5 to get -0.88235294117 (again not the prettiest). Add that to both sides which will give you 3y=-26.1176470588. After this divide both sides by 3 which will give you y=-8.70588235294. Your answer is (-0.17647058823,-8.70588235294) You can divide to the second or third decimal if needed-----remember that as you round from left to right on a decimal if it's below five you leave it and if it's above 5 then round up 1. I hope this help :)
3 0
3 years ago
After a tax of 7% is applied, the total cost of an item is $34.24. Which of the following
Romashka-Z-Leto [24]

Answer:

Step-by-step explanation:

do it your self

just know its not b.....

4 0
3 years ago
2(x+11) = -26 show all work pls
Degger [83]

Answer:

x = -24

Step-by-step explanation:

First, distribute 2 to all terms within the parenthesis:

2(x + 11) =

2 * x = 2x

2 * 11 = 22

2x + 22 = -26

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Additions

Subtractions

~

First, subtract 22 from both sides of the equation:

2x + 22 (-22) = -26 (-22)

2x = -26 - 22

2x = -48

Next, divide 2 from both sides of the equation:

(2x)/2 = (-48)/2

x = -48/2

x = -24

x = -24 is your answer.

~

4 0
3 years ago
How do I find out if -5 1/5 is greater,less or equal to 5.2?
swat32
It is less than 5.2, simply because the number is negative.
7 0
3 years ago
Read 2 more answers
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