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Sonbull [250]
3 years ago
7

What is m∠QSR? 140° R Q S P m∠QSR=°

Mathematics
1 answer:
podryga [215]3 years ago
5 0

Answer:

degree Q

Step-by-step explanation:

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15. In the drawing, find the perimeter of triangle BIS.<br>​
Nesterboy [21]

Answer:

29.86 units

Step-by-step explanation:

In the triangle BIS, IT is the bisector of angle BIS,

BI \cong ST.... (given) \\

Let BI = ST = x... (1)

By angle bisector property of a triangle, we have:

\frac{BI}{IS} = \frac{BT}{ST}.... (2)\\\\\frac{x}{12} = \frac{4}{x}\\\\x\times x = 12\times 4\\\\x^2 = 48\\\\x=\sqrt{48}\\\\x = 6.92820323\\\\x = 6.93\\

Therefore,

BI = ST =6.93

Perimeter of triangle BIS

= BI + IS + ST + BT

= 6.93 + 12 + 6.93 + 4

= 29.86 units

3 0
3 years ago
What’s 2 + 2? <br> A. 0<br> B. 1<br> C. 2<br> D. 4
snow_tiger [21]

Answer:

are u kidding me it's literally D --_--

Step-by-step explanation:

8 0
3 years ago
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A fountain on a lake sprays water in a parabolic arch modeled by the equation y= -0.3x^2 +3x. A beam of light modeled by the equ
Nikitich [7]

ANSWER

4.1 units to the nearest tenth.

EXPLANATION

The graph of the two functions are shown in the attachment.

The coordinates of point A is (1.6,4.1).

The coordinates of point B is (7.1,6.1)

The x-axis represents the ground level.

The distance of point A from the ground level is how far the y-coordinate of this point is from the x-axis.

Which is |4.1-0|=4.1

3 0
3 years ago
Answer needed Answer needed!
Sauron [17]

Answer:

I plotted points since i cant draw lines very well with a mouse

Step-by-step explanation:

7 0
3 years ago
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I need help on these problems
VikaD [51]
Someone is writing the answer so ill just give you this tip for whenever.
A negitive times a negitive is positive
a negative times a positive is negitive
and a positive times a positive is positive (just had to add it to be complete)
8 0
3 years ago
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