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1 year ago

PLEASE HELP ME

Mathematics

1 answer:

Sonbull [250]1 year ago

6 0

Answer:

A coordinate grid is shown from negative 10 to positive 10 on the x axis and also on the y axis. Two lines are shown intersecting on the ordered pair 3, 8.

Step-by-step explanation:

Finding the solution of these 2 equations

y = -2x + 14
y = 2x + 2

Equating them :

-2x + 14 = 2x + 2
2x + 2x = 14 - 2
4x = 12
x = 3

Substitute in a equation to find y :

y = 2(3) + 2
y = 6 + 2
y = 8

The solution is (3, 8).

The 1st explanation is the correct one.

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EleoNora [17]

Answer:

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Step-by-step explanation:

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3 years ago

Show that line passing through points (3,-2) and (-4,-2) is a horizontal line

Ierofanga [76]

Step-by-step explanation:

horizontal lines will have a gradient(m) of 0

so if m=0 , the line is horizontal

formula to find m:

m=y2-y1 / x2-x1

insert coordinates into formula

$m = \frac{ - 2 - ( - 2)}{ - 4 - 3} \\ \\ m = \frac{ - 2 + 2}{ - 7} \\ m = \frac{0}{ - 7} \\ m = 0$

As m=0 , therefore it is a horizonta line.

hope this helps..

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2 years ago

1) Consider the angle measurements. Which sides are congruent?

morpeh [17]

Answer:

The answer is A. AB and AC are congruent

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1 year ago

The sum of the digits of a two-digit number is 14. If the number formed by reversing the digits is less than the original number

HACTEHA [7]

Answer:

Step-by-step explanation:

1. a+b=14 ⇒ a= 14-b

2. 10a+b=18+10b+a ⇒ a= 2+b

comparing 1 and 2:

14-b= 2+b ⇒ 2b= 12 ⇒ b= 6

a= 14-b= 8

number = 86

reversed number = 68

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2 years ago

Mr. Cole packed 20 pounds into a suitcase, and Mrs. Cole packed 23 pounds into the same suitcase. They then had to remove 8 poun

Sedaia [141]

Answer:

35 lbs is the final weight

Step-by-step explanation:

20 +23 = 43 lbs

Then they had to remove 8 lbs

43 - 8 =35

35 lbs is the final weight

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3 years ago