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2 years ago

1.7.3 Quiz: Intersecting Lines and Proofs

Mathematics

2 answers:

faltersainse [42]2 years ago

7 0

Answer:

Perpendicular lines.

Perpendicular lines are lines that intersect at a right (90 degrees) angle.

GalinKa [24]2 years ago

6 0

Perpendicular lines are 2 lines that intersect each other creating a 90 degree angle

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Can you identify the value of each digit ?

Licemer1 [7]

Answer:WHAT VALUE AND WHAT DIGIT

Step-by-step explanation:

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2 years ago

Mia spent 30 minutes answering the math questions on the exam. This was 1/4 of the total amount of time allotted for this sectio

KIM [24]

Answer:

Mia multiplied one side of the equation by 5/3 and the other side by 3/5. This makes the equation unbalanced and untrue. x should be 50

Step-by-step explanation:

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3 years ago

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Determine the equation of quadratic function represented by the table of value below.

Svetllana [295]

Answer:

Step-by-step explanation:

The general rule for the quadratic function is

$y=ax^2+bx+c$

Use the data from the table:

$y(0)=6\Rightarrow 6=a\cdot 0^2+b\cdot 0+c\\ \\y(1)=4\Rightarrow 4=a\cdot 1^2+b\cdot 1+c\\ \\y(-1)=10\Rightarrow 10=a\cdot (-1)^2+b\cdot (-1)+c$

We get the system of three equations:

$\left\{\begin{array}{l}c=6\\ \\a+b+c=4\\ \\a-b+c=10\end{array}\right.$

From the first equation

$c=6,$ then

$\left\{\begin{array}{l}a+b=-2\\ \\a-b=4\end{array}\right.$

Add these two equations:

$a+b+a-b=-2+4\\ \\2a=2\\ \\a=1$

So,

$b=-2-a=-2-1=-3$

The quadratic function is

$y=1\cdot x^2-3x+6\\ \\y=x^2-3x+6$

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3 years ago

Solve for t. 3 t minus 2 equals negative 11

Ierofanga [76]

Answer:

3t - 2 =-11

3t = -11+2

3t= 9

divide both sides by 3

t = -3

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3 years ago

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Find the value of X<br> 72 (x +4)

allsm [11]

Answer:

72x + 288

Step-by-step explanation:

You would multiply 72 with (x + 4), which would leave you with 72x + 288. The value of x would be 72 i think

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2 years ago