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Scorpion4ik [409]
3 years ago
15

Simplify the following expression: (5x2 + 3x + 4) − (2x2 + 5x − 1). If the final answer is written in the form Ax2 + Bx + C, wha

t is the value of A? Numerical Answers Expected! Answer for Blank 1:
Mathematics
2 answers:
ladessa [460]3 years ago
6 0
<span>Taking out the parentheses of expression
(5x2 + 3x + 4) − (2x2 + 5x − 1)

= 5x2 + 3x+ 4 -2x2 - 5x + 1

Grouping together the like terms and arranging the expression:
= 5x2 - 2x2 + 3x - 5x + 4 + 1

Combining the like terms:
= 3x2 - 2x + 5

Therefore,
A = 3
</span>
monitta3 years ago
5 0

Answer: 3

Step-by-step explanation:

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Select the two values of x that are roots of this equation 3x^2 + 1 =5x
Zina [86]

Answer:

x = 1.434 and x=0.232

Step-by-step explanation:

To find the root of the equation stated above we need to:

(1) Write the polynomial equation with zero on the right hand side:

3x^{2} + 1 = 5x ⇒ 3x^{2} -5x + 1 = 0

(2) Divide the whole equation by 3

3x^{2} -5x + 1 = 0 ⇒ x^{2} -\frac{5}{3}x + \frac{1}{3}= 0

(3) Use the quadratic formula to solve the quadratic equation:

The quadratic formula states that the two solutions for a quadratic equation is given by:

\frac{-b±\sqrt{b^{2} - 4ac}}{2a} (1)

In this case, a = 1, b = -\frac{5}{3}, c= \frac{1}{3}

Substituiting a, b and c in equation (1) We get:

\frac{-\frac{5}{3}±\sqrt{(-\frac{5}{3})^{2} - 4(1)(\frac{1}{3})}}{2(1)} (1)

The two solutions are:

x = 1.434 and x=0.232

8 0
3 years ago
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IceJOKER [234]
Even though it has not happened yet again
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How can u get from 100 to 18 in divison or multiplaction
slavikrds [6]
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4 years ago
PLEASE HELP
ycow [4]

Answer:

11 bushels of apples were sold

Step-by-step explanation:

Let

x---->  bushels of peaches

y---->  bushels of apples

we know that

7x+6y=346 -----> equation A

x=y+29 -----> equation B

substitute equation B in equation A and solve for y

7(y+29)+6y=346

7y+203+6y=346

13y=346-203

13y=143

y=143/13=11

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4 years ago
The ages of people on the camp bus are listed. 10, 15, 14, 8, 18, 11, 12, 12, 10, 10, 17, 16 What is the mode of the ages?
oksian1 [2.3K]
Mode is the number that mostly occurs so its a.10
3 0
4 years ago
Read 2 more answers
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