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2 years ago

Mackenzie runs around a circular track 4 times. If the track has a radius of 40 feet, how far did Mackenzie run?

Mathematics

2 answers:

Trava [24]2 years ago

6 0

Answer:

The answer is 280 because

Step-by-step explanation:

She said she ran around the track 4 times and it is about 40 feet. Which means you multiply 40 times 4 and you get 280.

Marina CMI [18]2 years ago

3 0

Answer: 320 feet

Step-by-step explanation: The radius is half of the diameter, so 40x2=80. But it says she ran around the track 4 times so you do 80x4=320.

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The vertex angle of an isosceles triangle measures 40°. What is the measure of a base angle?

skad [1K]

In all triangles, inner angles add to 180 degrees.
In an isosceles triangle, the base angles are the same and the vertex angle is different from the rest.

b= (180-40)/2
b= 140/2
b=70

Final answer: 70 degrees

8 0

2 years ago

Find the slope of the line through<br> (-11,8),(-11, -17)

Rom4ik [11]

Answer:

Undefined or Infinity

Step-by-step explanation:

(x1,y1)=(-11,8)

(x2,y2)=(-11,-17)

Slope = (y2-y1)/(x2-x1)

= (-17-8)/(-11-(-11))

= -25/0

= Undefined

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2 years ago

Find the slope please

Katarina [22]

Answer:

slope is $-\frac{3}{4}$

Step-by-step explanation:

1,-1 -3,2 are two points on the graph

the equation to find slope is $\frac{y_{1}- y_{2} }{x_{1}- x_{2} }$

so $\frac{2--1}{-3-1} = -\frac{3}{4}$

or you can count how many places it changed in the equation $\frac{rise}{run}$

7 0

2 years ago

Substitute for x+2y=12 and x=y-12<br><br> PLEASE HELP !

yan [13]

Answer:

x = -4, y = 8

Step-by-step explanation:

y - 12 + 2y = 12

=> 3y = 24

=> y = 8

x = 8 - 12

=> x = -4

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grin007 [14]

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