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erica [24]
3 years ago
13

Omg pls help its proving the sum of the interior angle measures of a triangle is 180

Mathematics
2 answers:
motikmotik3 years ago
8 0
THE ANSWER IS 60 that is the correct answer
Sav [38]3 years ago
3 0

Answer:

60

Step-by-step explanation:

all angles in a triangle measures 180°

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If S is the midpoint of RT, RS = 5x+7, and ST = 8x-31, find RS
Strike441 [17]

Answer:

38/3

Step-by-step explanation:

s is the midpoint of RT

so, RS = ST

5x + 7 = 8x -31

7+31 = 8x-5x

38= 3x

x= 38/3

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2 years ago
Find the volume of the solid of revolution formed by rotating the bounded region about the x-axis.
lana66690 [7]

Answer:

40.5 \pi cubic units

Step-by-step explanation:

Given is a function exponential as

f(x) =\sqrt{ (x-4)}

The region bounded by the above curve, y =0 ,  x =13 is rotated about x axis.

the intersection point is at x=4

The limits for x are 4 and 13

The volume when rotated through x axis is found by

\pi\int\limits^b_a {f(x)^2} \, dx

Here a = 4 and b =13

volume = \pi\int\limits^13_(4) x-4} \, dx

=\pi (\frac{x^2 }{2}-4x )\\= \frac{\pi}{2} (153-72)\\= 40.5 \pi.cubic units

3 0
3 years ago
Y is 4 more than the product of 7 and x; x=3
stepladder [879]

y = 4 + 7x

x = 3

We can plug this value into the original equation to solve for y.

y = 4 + 7(3)

y = 4 + 21

<h3><u>y = 25</u></h3>
6 0
3 years ago
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The customer had a coupon for a 6% discount on a $12 (whole) meal. What is the total that she paid?
ss7ja [257]

Answer:

$11.28

Step-by-step explanation:

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12.00 - 0.72=11.28

5 0
3 years ago
Determine which representation corresponds to a decreasing speed with an increasing time.
konstantin123 [22]

Answer:

the answer is option 3

Step-by-step explanation:

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3 years ago
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