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34kurt
3 years ago
5

Which graph best represents the solution to the system of equations shown below? y = -2x + 14 y = 2x + 2 A coordinate grid is sh

own 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. 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 ordered pair 8, 3. 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 ordered pair negative 8, negative 3. 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 ordered pair negative 3, 8.
Mathematics
1 answer:
vlabodo [156]3 years ago
4 0

\\ \sf\longmapsto y=-2x+14

\\ \sf\longmapsto y=2x+2

Solution is (3,8){Graph attached)

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Area of triangle where A=50, b=31, c=18
Mrac [35]
Use Heron's Formula:
s means semi-perimeter = (50 + 31 + 18) / 2 = 99 / 2 =
49.5
area = sq root [(s * (s-a) * (s-b) * (s-c)]
area = sq root [(49.5 * (s-a) * (s-b) * (s-c)]

This will NOT form a triangle.  The longest side (50) is greater than the sum of the other 2 sides.

Source:
http://www.1728.org/trianinq.htm

 


5 0
4 years ago
When a number is substituted for the same variable in two expressions, how many times must those two expressions have different
zysi [14]

Answer:

Hope this helps!!!

Step-by-step explanation:

An equation is a mathematical statement that two expressions are equal. The solution of an equation

is the value that when substituted for the variable makes the equation a true statement.

Our goal in solving an equation is to isolate the variable on one side of the equation and a number on

the other side so the equation reads:

Variable = Number

To achieve our goal, we use two principles of equality, the addition principle and the multiplication

principle.

• Use the addition principle to move terms from one side of the equation to the other side. To

move a term, add it's opposite to both sides of the equation.

• Use the multiplication principle to solve for the variable. If the variable is multiplied by a

number, divide both sides of the equation by that number. If the variable is divided by a

number, multiply both sides of the equation by that number.

To solve equations, use the procedure outlined below.

Steps for Solving Equations

Step 1: Clear fractions and decimals by multiplying each term of the equation by the LCD (least

common denominator).

Step 2: Remove the parentheses by distributing.

Step 3: Combine any like terms found on the same side.

Step 4: Use the addition principle to move the variable term to one side of the equation and the

number to the other side.

Step 5: Multiply or divide to solve for the variable.

Step 6: Check the result in the original equation.

4 0
3 years ago
Read 2 more answers
Which statement comparing x² + 10 and x + x + x is true when x=−5 ?
MissTica
When comparing x^2 + 10 and x + x + x equals to:
x^2 +10 is greater than x + x + x when x = -5
Because -5^2 + 10 = 25 + 10 = 35
and -5 + -5 + -5 = -15
So, 35 > -15
5 0
3 years ago
Read 2 more answers
Subtract 2+b/ab from 3/a
Ivenika [448]

Answer:

D, 2(b-1)/ab

Step-by-step explanation:

subtract 2+b/ab from 3/a

it means 3/a - 2+b/ab

lcm is ab

(3b-(2+b))/ab

(3b-2-b)/ab

(3b-b-2)/ab

(2b-2)/ab

2(b-1)/ab

6 0
3 years ago
What times 3 equal 19? I know it’s a repeating number but what would I put on top?
AlexFokin [52]
You would put a Vinculum on top of it
5 0
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