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2 years ago

Quadratic inequalities

Mathematics

1 answer:

MA_775_DIABLO [31]2 years ago

6 0

hey bud, your answer would be C about 0.63 seconds =)

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Prove the following statement.

gayaneshka [121]

Answer:

You can prove this statement as follows:

Step-by-step explanation:

An odd integer is a number of the form $2k+1$ where $k\in \mathbb{Z}$ . Consider the following cases.

Case 1. If $k$ is even we have: $(2k+1)^{2}=(2(2s)+1)^{2}=(4s+1)^{2}=16s^2+8s+1=8(2s^2+s)+1$ .

If we denote by $m=2s^2+2$ we have that $(2k+1)^{2}=8m+1$ .

Case 2. if $k$ is odd we have: $(2k+1)^{2}=(2(2s+1)+1)^{2}=(4s+3)^{2}=16s^2+24s+9=16s^{2}+24s+8+1=8(2s^{2}+3s+1)+1$ .

If we denote by $m=2s^{2}+24s+1$ we have that $(2k+1)^{2}=8m+1$

This result says that the remainder when we divide the square of any odd integer by 8 is 1.

6 0

2 years ago

Evaluate 2b^2-4a+4a^2 for a= 3 and b= -8

masha68 [24]

Given a = 3 and b = - 8 ,

= > 2b² - 4a + 4a²

= > 2( - 8 )² - 4( 3 ) + 4( 3 )²

= > 2( 64 ) - 4( 3 ) + 4( 9 )

= > 128 - 12 + 36

= > 116 + 36

= > 152

$\:$

5 0

2 years ago

Read 2 more answers

100 points! A company makes triangular plates for individual slices of pizza. For each plate, the base is 9 inches and the heigh

daser333 [38]

To find the area you would had to do a an triangle formula so the final answer would be 63 inches

3 0

2 years ago

using graph paper determine the line to Scribe by their given point and slope click to show the correct the graph below (0, 6) (

galben [10]

Answer:

stand up guy wont speak on nothign i speak or saw

Step-by-step explanation:

7 0

2 years ago

What is an equation of the line that passes through the points (3,4) and (-4, -3)?

azamat

Answer:

y=x+1

Step-by-step explanation:

1) Find the slope

m=-3-4/-4-3

m=-7/-7

m=1

2) Use y=mx+c

by using the point (3,4)

4=1(3)+c

4=3+c

c=1

3) The answer

y=x+1

8 0

1 year ago