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Vikentia [17]
3 years ago
7

Which of the following is true?

Mathematics
1 answer:
butalik [34]3 years ago
3 0

Answer:

D

Step-by-step explanation:Its multiple choice next time just guess and keep trying

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What is the decimal 0.7 written as a fraction
viktelen [127]
Its "7/10"

Just think of it as ➡7÷10 = 0.7; 7÷ 10 = .7

Look for the number that comes to that decimal when you're dividing
5 0
4 years ago
Read 2 more answers
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
Plz help! Don’t answer if you don’t know
sergejj [24]

Answers i can't see the numbers but i think it is 30 or 50

4 0
3 years ago
Read 2 more answers
Answer all of these for 100 points
KiRa [710]

Answer:

Step-by-step explanation:

37) Take two point from the line.

(2 , 0)  & (0,4)

Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{4-0}{0-2}\\\\=\frac{4}{-2}\\\\=-2

Slope = (-2)

38)  (7 , 0) & (3 , 2)

Slope = \frac{2-0}{3-7}\\\\=\frac{2}{-4}\\\\=\frac{-1}{2}

39) The line is parallel to x-axis and so its slope is 0

Slope = 0

40) The line is parallel to y-axis and so its slope is undefined

Slope = undefined

8 0
3 years ago
Can someone please check this?
IceJOKER [234]

Answer:

Your answers are correct.

Step-by-step explanation:

The equality will be true for odd multiples of π/4, so the last two choices will not show the expression to be <em>not</em> an identity.

8 0
4 years ago
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