All categories

4 years ago

Please help. Polynomial question

Mathematics

1 answer:

Reil [10]4 years ago

4 0

Answer:

Therefore the Difference is

$-2x^{2}-7x+11$

Step-by-step explanation:

Vertical Format to Subtract

Given

4x² - 5x + 7

- (6x² + 2x - 4)

----------------------------

- - + ....... Sign will change for Subtraction

-----------------------------

∴ -2x² - 7x + 11 ....... As Required

------------------------------

Therefore the Difference is

$-2x^{2}-7x+11$

You might be interested in

What is the probability that the spinner lands on an even number or on the unshaded section? one-fifth two-fifths three-fifths f

Tasya [4]

The probability that the spinner lands on an even number or on the unshaded section is; 3/5

<h3>How to find the probability?</h3>

From the spinner attached, we see that the number of sections on the spinner is 5 sections.

Now, we can also see that;

Number of even numbers section = 2

Number of shaded sections = 1

Thus, probability that the spinner lands on an even number or on the unshaded section is;

P(even number or unshaded section) = (2 + 1)/5 = 3/5

Read more about Probability at; brainly.com/question/24756209

#SPJ1

5 0

2 years ago

Brian, Chris, and Damien took a math test that had 20 questions. The number of questions Brian got right is 14 more than the num

shepuryov [24]

Question:

Brian, Chris, and Damien took a math test that had 20 questions. The number of questions Brian got right is 14 more than 1/4 the number of questions Chris got right. Damien correctly answered 2 less than 5/4 the number of questions Chris answered correctly. If Brian and Damien have the same score, which statement is true?

A) Brian and Damien both answered 2 fewer questions correctly than Chris did.

B) Brian and Damien both answered 4 more questions correctly than Chris did.

C) Brian and Damien both answered 2 more questions correctly than Chris did.

D) Brian and Damien both answered 4 fewer questions correctly than Chris did.

Answer:

Option C

Brian and Damien both answered 2 more questions correctly than Chris did

Solution:

Let "x" be the number of correct answers of Brian

Let "y" be the number of correct answers of Chris

Let "z" be the number of correct answers of Damien

The number of questions Brian got right is 14 more than 1/4 the number of questions Chris got right

$x = 14 + \frac{1}{4}y\\$ ---------- eqn 1

Damien correctly answered 2 less than 5/4 the number of questions Chris answered correctly

$z = \frac{5}{4}y - 2$ ---------- eqn 2

Brian and Damien have the same score

x = z -------- eqn 3

Therefore,

$14 + \frac{1}{4}y = \frac{5}{4}y - 2\\\\\frac{5}{4}y - \frac{1}{4}y = 14+2\\\\y = 16$

Substitute y = 16 in eqn 1

$x = 14 + \frac{16}{4}\\\\x = 14 + 4\\\\x = 18$

Therefore, by eqn 3,

z = 18

Thus we get,

Number of correct answers of Brian = 18

Number of correct answers of chris = 16

Number of correct answers of Damien = 18

Therefore, correct statement is:

Brian and Damien both answered 2 more questions correctly than Chris did

5 0

3 years ago

Is the following equation an example of direct variation? y equals 5 x

matrenka [14]

Yes it is a direct variation

8 0

3 years ago

Can someone help with this please

zepelin [54]

Https://www.google.com/?sa=X&ved=0ahUKEwjNk_Sj3v_dAhVfJTQIHW01DQgQOwgC https://www.google.com/?sa=X&ved=0ahUKEwjNk_Sj3v_dAhVfJTQIHW01DQgQOwgC https://www.google.com/?sa=X&ved=0ahUKEwjNk_Sj3v_dAhVfJTQIHW01DQgQOwgC

4 0

3 years ago

Points A and B have coordinates (8, 3) and (p, q) respectively. The equation of the perpendicular

DaniilM [7]

Answer:

p = -4, q = -3

Step-by-step explanation:

y = -2x +4 ... (1) perpendicular bisector of AB, slope = -2

slope of AB = 1/2

Line AB pass (8,3): (y-3) / (x-8) = 1/2

AB equation: y-3 = 1/2(x-8) y = 1/2x - 1 ... (2)

(2)-(1): 5/2 x = 5 x = 2

y = 0 (2,0) intercept of bisector and AB, it is midpoint of A (8,3) and (p,q)

(8+p)/2 = 2

p = -4

(3+q)/2 = 0

q = -3

4 0

3 years ago