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I am Lyosha [343]
3 years ago
8

IM SO LOST PLEASE HELP

Mathematics
1 answer:
LiRa [457]3 years ago
3 0
Check the picture below.

\bf \textit{lateral area of a cone}\\\\
LA=\pi r\stackrel{slant-height}{\sqrt{r^2+h^2}}~~
\begin{cases}
LA=539\pi \\
r=49
\end{cases}\implies 539\pi =\pi 49\sqrt{r^2+h^2}
\\\\\\
\cfrac{539\pi }{49\pi }=\sqrt{r^2+h^2}\implies 11=\sqrt{r^2+h^2}

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Please help fast.
podryga [215]

\huge{\underline{\boxed{\tt{Answer:}}}}

Let AB be a chord of the given circle with centre and radius 13 cm.

Then, OA = 13 cm and ab = 10 cm

From O, draw OL⊥ AB

We know that the perpendicular from the centre of a circle to a chord bisects the chord.

∴ AL = ½AB = (½ × 10)cm = 5 cm

From the right △OLA, we have

OA² = OL² + AL²

==> OL² = OA² – AL²

==> [(13)² – (5)²] cm² = 144cm²

==> OL = √144cm = 12 cm

Hence, the distance of the chord from the centre is 12 cm.

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8 0
3 years ago
Given the statement:
WITCHER [35]
D. Intersection is a point.

C doesn’t explain the point, B and A mean the same thing and they don’t make sense because not all points are intersections, but all intersections are points, so your answer is D.
8 0
3 years ago
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Please answer this will give brainliest
vovangra [49]

Answer: c

Step-by-step explanation:

3*2=6

8*6=48

6/48

8 0
3 years ago
Leila received a $80 gift card for a coffee store. She used it in buying some coffee that cost $7.58 per pound. After buying the
podryga [215]

Answer:

4.55 or about 5 pounds

Step-by-step explanation:

I did 34.52 / 7.58 = 4.55 or rounded up, to about 5 pounds :D

5 0
3 years ago
You paid $16.50 for a prescription plus $1.32 in sales tax. What is the sales tax rate?
Gwar [14]

Answer:

16.50+1.32 u happy its so easy

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2 years ago
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