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masya89 [10]
3 years ago
11

Use the spinner to identify the probability to the nearest hundredth of the pointer

Mathematics
1 answer:
hammer [34]3 years ago
8 0
The sum of the angles of the shaded area is 120°, and there are 360° in a circle, so the probability of landing on it is 1/3 of 33.33% repeating
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3.) Simplify. -8a – 3b + 6b – 5a + 9b
DanielleElmas [232]
-8a-3b+6b-5a+9b= -13a-18b

-8a-5a=-13a

3b+6b+9b=18b

Hopes that helps
7 0
3 years ago
Marta is making two different charms for necklace one charm has a 1 cm diameter and a 3.14 cm circumference of a similar charm h
EastWind [94]
From what I can pick up from your problem statement, you want to know "<span>a similar charm has a diameter of 4 cm what is the circumference."  Please, would you use proper punctuation in your writing, for greater clarity:

"A</span><span> similar charm has a diameter of 4 cm.  What is the circumference?"

The formula for the circumference of a circle, when the diameter is known, is 

C=</span>\pid               or  C=pi*d

In this case, with diamter 4 cm, the circumference, C, is 4pi cm.
3 0
4 years ago
Somebody, Anybody please help
taurus [48]
The answer should be 390=60s, assuming s is the number of shelves he would need.

By the way, if you want the answer using this formula:
390=60s
390/60=s
6.5=s
s=6.5
8 0
3 years ago
Read 2 more answers
What is the equation of the line that passes through the point (-3, 1) and has a<br> slope of - 2
Yakvenalex [24]

Step-by-step explanation:

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

equation of the line y2 - y1 = m(x2-x1),

y2 = m(x2-x1) +y1

y2-y1 = -2(x2- (-3))

y2-y1 = -2x -6

y2 - 1 = -2x -6

y2 = -2x -5

8 0
3 years ago
△RST is mapped to △R′S′T′ using the rule (x,y)→(x,−y) followed by (x,y)→(3x,3y)
Vadim26 [7]

Remember:

a) (x,y) => (x, -y) is a reflection across X axis

b) (x,y) => (-x,y) is a reflection across Y axis

Here △RST is mapped to △R′S′T′ using the rule (x,y)→(x,−y)

Hence it is a reflection across X axis.

The size of the triangle does not alter.

But when this is followed by (x,y)→(3x,3y), the lengths increase by a factor 3.

Hence the triangles do not remain congruent.

△RST is not congruent to △R′S′T′ because the rules do not represent a sequence of rigid motions.

Option A) is the right answer

6 0
3 years ago
Read 2 more answers
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