MATHEMATICS HIGH SCHOOL

3. What is the slope of the table shown? Cars Washed Number Money ($) 5 40 10 80 15 120 20 160

Answers

Answer 1

Answer: The slope is 8.
(5,40) (10,80)
80-40=40
10-5=5
40/5=8

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Add.
(-534 +622 - 43) + (625 - 2? + 121 + 12)
Express the answer in standard form.

Answers

Answer:

801

Step-by-step explanation:

Waht is the value of ((2/3)^0)^-3

Answers

Answer:

$\left(\left((2)/(3)\right)^0\right)^(-3)=1$

Step-by-step explanation:

$\mathrm{Apply\:exponent\:rule}:\quad \left(a^b\right)^c=a^(bc),\:\quad \:a\ge 0\n\left(\left((2)/(3)\right)^0\right)^(-3)=\left((2)/(3)\right)^(0\cdot \left(-3\right))\n=\left((2)/(3)\right)^0\n=1$

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Red

What type if assoviation is shown by the data in the scatter plot?

Answers

Answer:

B a negative assoviation because the scatter plot leads downwards

How many angles less than a right angle does this triangle have ?

Answers

2 angles are less than a right angle.

What is polygon Interior angles sum theorem?

Is states that sum of all interior angles of any polygon is fixed which is given by formula : (n-2)*180 degree.

How to solve?

Sum of all the three angles of a triangle is ( n-2 ) *180degree = (3-2)*180 degree = 180 degree.

since one angle is 90 degree, any other angle can't be of 90 degree or more otherwise it won't satisfy condition of sum of interior angles.

To know more about Angles visit:

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2. the other on top is a right angle

Solve it by substitution method:- 5x - 6y=-9 and 3x + 4y= 25

Answers

$\left\{\begin{array}{ccc}-5x-6y=-9&/\cdot2\n3x+4y=25&/\cdot3\end{array}\right\n+\left\{\begin{array}{ccc}-10x-12y=-18\n9x+12y=75\end{array}\right\n------------\n.\ \ \ \ \ \ \ -x=57\n.\ \ \ \ \ \ \ \ \ x=-57\n\n3\cdot(-57)+4y=25\n-171+4y=25\n4y=25+171\n4y=196\ \ \ \ /:4\ny=49\n\nSolution:x=-57;\ y=49.$

What is an equation in point-slope form of the line that passes through (-7,1) and (-3, 9)

Answers

Step-by-step explanation:

let eqn be y - y1 = m(x - x1)

m = (9 - 1)/(-3 - (-7))

m = 2

sub (-7, 1):

y - 1 = 2(x + 7)

therefore, the equation is y - 1 = 2(x + 7)

Topic: coordinate geometry

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

Answer:
y=2x+15

Solution:
Refer to the diagram

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