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k0ka [10]
3 years ago
14

PLEASE HELP I WILL MARK BRAINLIEST!!!! :)

Mathematics
1 answer:
tia_tia [17]3 years ago
7 0
Answer: B

Explanation:
(75 + 90)/250 = 0.66 = 66% of students are 11 or 12
5/250 = 0.02 = 2% of students are 10
(90 + 70)/250 = 0.64 = 64% of students are 12 or 13
10/250 = 0.04 = 4% of students are 14
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Please help me with this
goldenfox [79]
For part A, if P is the center of that triangle, then PR and PT have the same length; therefore, triangle RPT is isosceles.  For part B, by the definition of an incenter...if P is an incenter, then it is the place where all the angle bisectors meet.  Therefore, angles SRP and PRT are congruent, as are angles STP and PTR.  Since the vertex angle measures 64, then each of the base angles by the isosceles triangle theorem measure 58.  Half of 58 makes the base angles within the smaller triangle measure 29.  And if both of those measure 29, by the triangle angle-sum theorem, 180-29-29 = 122  And that's the measure of angle RPT.  Eek.
7 0
3 years ago
Lisa has $15 in her piggy bank. How much additional money does she need to buy a game that costs $75?
Bogdan [553]
75 - 15 = 60$ you subtract kind of doing it backwards in a sense to get your answer.
7 0
3 years ago
the equation below shows the total volume (v), in cubic units, of 2 identical boxes with each side equal to s units: v = 2s3 if
Assoli18 [71]
V = 2s^3
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7 0
3 years ago
The Zigzag River is 114 miles longer than twice the Petite River. If the Petite River is 46 miles long, how long is the Zigzag R
emmasim [6.3K]
Z = 114 + 2p
p = 46

Plug in 46 for 'p' in the first equation.

z = 114 + 2p

z = 114 + 2(46)

Multiply:

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Add:

z = 206

So the Zigzag river is 206 miles long.
5 0
3 years ago
Read 2 more answers
How many sides does a regular polygon have if each exterior angle is 15 degrees?
mash [69]

Answer:

24

Step-by-step explanation:

The sum of the exterior angles of a polygon is 360°

Given that each exterior angle is 15°, then

number of sides = 360° ÷ 15° = 24

6 0
3 years ago
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