MATHEMATICS MIDDLE SCHOOL

PLEASE HELP! THANKS!The measures, in degrees, of the 3 angles of a triangle are given by 2x +1, 3x - 3, and 9x.
What is the measure of the smallest angle?

A.) 13 degrees
B.) 27 degrees
C.) 36 degrees
D.) 117 degrees

please show how to solve this I GIVE THANKS!!!

Answers

Answer 1
Answer: if you add everything up then
14x-2=180
14x=182
x= 13
 
So the angles would equal
2(13)+1= 27
3(13)-3= 36
9(13)= 117
The angles are 27 36 and 117
Which makes the smallest angle 27 which is B.
Answer 2
Answer: You first have to know that the measure of the three angles of a triangle= 180add the terms and equal them to 1802x+1 + 3x-3 =9x= 18014x-2 = 18014x= 182x=13 This is not what you are looking for, you need tosubstitute 13 in the original measures2 (13) +1= 27 degrees3(13) -3= 36 degrees9 (13) = 117 degreestherefore the smallest angle is 27 degreesif you add all three angle measure it will = 180 degreesHope this helps you

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What are the solution(s) to the quadratic equation x2 – 25 = 0?O x= 5 and x = -5
O x = 25 and x = -25 A
O x = 125 and x = -125
O no real solution
Mark this and return
Save and Exit
Noy

Answers

Answer:

x = 5 and x = - 5

Step-by-step explanation:

Given

x² - 25 = 0 ← x² - 25 is a difference of squares and factors as

(x - 5)(x + 5) = 0

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 5 = 0 ⇒ x = - 5

What is 2 3/4 multiplied by 3?

Answers

2(3)/(4)\cdot3=\n2\cdot3+(3)/(4)\cdot3=\n6+(9)/(4)=\n6+2(1)/(4)=\n8(1)/(4)

Using the line of best fit, estimate how may miles Jack ran the 10th week; show work.During which week would you expect Jack to run a full marathon, 26.3 miles? Do you think that you should round up or down to the nearest week? Why?

Answers

one way is to type it into your trusty TI and use the table from presing stat and then stat againg then calc then 4
so the equation that I got from your set of points is y=1.983333333333333x+0.80555555555
Take two points and find the slope. 
(4,9) (6,13)
y2-y1/x2-x1
4/2=2=m
y=2x+b
9=8+1
b+1
y=2x+1
Set x to 10 to find the 10th week
y=20+1
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Set y=26.3 to find which week.
26.3=2x+1
2x=25.3
x=12.6 weeks or round to 13 weeks
I think he should round up because in more slopes in between points, there is a lesser slope than 2.
Hope this helps.

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Answers

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The probability that the second spinner will land on a 5 is 1/6 because there are 6 numbers on the spinner and only one 5.

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Answers

Answer:

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Step-by-step explanation:

parallel = same slope

y = 4x + b

plug in (-4, -9)

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y = 4x + 7

Answer:

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Step-by-step explanation:

To do this you would just plug in (-4,-9) into the equation y=mx+b so we would get -9=4(-4)+b when you simplify you will get -9=-16+b so we would add 16 to both sides and we would get 7=b so we would know that the y intercept is 7 and we know that if a line is parallel to another line is just has a different b so for our equation we would get 7=4x+7

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Answers

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