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kakasveta [241]
3 years ago
12

HELP PLEASE !!

Mathematics
1 answer:
Kazeer [188]3 years ago
8 0
Bert, Camille, Etsuko
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Find AC and BC. <br><br> Answers: <br> 14.94<br> 13.46<br> 11.10<br> 10<br> Please help.
anzhelika [568]

Step-by-step explanation:

Use Sine rule.

\frac{ac}{ \sin(b) }  =  \frac{ab}{ \sin(c) }  \\  \frac{ac}{ \sin(90) } =  \frac{10}{ \sin(42) }   \\  ac \sin(42)  = 10 \sin(90)  \\ ac =  \frac{10 \sin(90) }{ \sin(42) }  \\  ac = 14.9 \: units \: (3s.f)

Angle A + angle B + angle C = 180 (sum of angles in triangle)

Angle A + 90 + 42 = 180

Angle A + 132 = 180

Angle A = 180 - 132

= 48

\frac{bc}{ \sin(a) }  =  \frac{ab}{ \sin(c) }  \\  \frac{bc}{ \sin(48) } =  \frac{10}{ \sin(42) }   \\  bc \sin(42)  = 10 \sin(48)  \\ bc =  \frac{10 \sin(48) }{ \sin(42) }  \\  = 11.1units (3sf)

3 0
3 years ago
6th grade math, help me please:)
zalisa [80]

Answer:

B

broh the answer is b broh

5 0
3 years ago
What is the initial value and what does it represent
yawa3891 [41]
Its a ordinary differential equation together with a specifies value, called thee initial equation :) hope that helps
7 0
3 years ago
Please answer this correctly
olga2289 [7]

Answer:

3.14

Step-by-step explanation:

A quarter circle is just 1/4 of an entire circle's area. Since you know the radius is two, simply find the area of the entire circle and divide by 4.

4pi/4 = pi

3 0
3 years ago
Which points have an x-value less than zero?
Zanzabum

Answer:

C, D, J

Step-by-step explanation:

Points to the left of the y-axis have a negative x- value

Points to the right of the y-axis have a positive x- value

Points on the y-axis have an x- value of zero

C(- 4, 5), D(- 9, 9 ), J(- 9, 0) ← are the coordinates of the points

All have a negative x- value



8 0
3 years ago
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