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3 years ago

1.

Mathematics

2 answers:

I am Lyosha [343]3 years ago

7 0

Answer: Hypothesis: Two lines intersect at right angles.

Conclusion: The two lines are not perpendicular.

Step-by-step explanation:

A conditional statement is written as "if p then q" , where symbol 'p' represents the hypothesis and symbol 'q' represents the conclusion.

For example : If a coin has two heads , then the coin is biased.

here , Hypothesis : a coin has two heads

Conclusion : coin is biased

Given conditional statement : If two lines intersect at right angles, then the two lines are perpendicular.

Here, Hypothesis: Two lines intersect at right angles.

Conclusion: The two lines are not perpendicular.

photoshop1234 [79]3 years ago

3 0

it is the second one

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5a+5b=25 and -5a+5b=35

Alex_Xolod [135]

add the two equations together

5a+5b=25

-5a+5b=35

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

0 + 10b =60

divide by 10

b=6

5a + 5b = 25

5a +5(6) = 25

5a +30 =25

subtract 30 from each side

5a =-5

divide by 5

a = -1

Answer (-1,6)

or a=-1 b=6

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3 years ago

Solve and graph the inequality -13>5-2b

skelet666 [1.2K]

Answer:

9 > b

Step-by-step explanation:

-13 > 5 - 2b

-13 - 5 > -2b

-18/-2 > b

9 > b

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3 years ago

Solve: 2x + 3x? - 11x-6=0

erica [24]

Answer:

To solve the following equation we must first combine like terms
Recognize the easiest way to manipulate the equation
Lastly rearrange to isolate for x: usually done with division

2x+3x-11x-6=0

Combine like x variables

-6x-6=0

Add 6 to the right side

-6x = 6

Divide by -6

x=-1

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8 0

3 years ago

Read 2 more answers

The sum of 555 consecutive integers is 270270270. What is the second number in this sequence?

Simora [160]

The second number in the sequence will be 53.

Explanation

The difference between any two consecutive integers is always 1.

Suppose, the five consecutive integers are: $n$ , $n+1$ , $n+2$ , $n+3$ and $n+4$

Given that, their sum is 270. So, the equation will be......

$n+(n+1)+(n+2)+(n+3)+(n+4)=270\\\\ 5n+10=270\\\\5n=270-10=260\\ \\ n=\frac{260}{5}=52$

Thus, the second number in the sequence will be: $n+1= 52+1=53$

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3 years ago

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nekit [7.7K]

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3 years ago