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kap26 [50]
3 years ago
12

Find sin A and sec B given a=2 b=11

Mathematics
2 answers:
zalisa [80]3 years ago
8 0

Answer:

\sin A=\dfrac{2}{5\sqrt5}

\sec B=\dfrac{5\sqrt5}{11}

Step-by-step explanation:

Given: a=2,b=11

Using pythagoreous theorem:

c^2=a^2+b^2

c^2=11^2+2^2

c=5\sqrt{5}

Trigonometric Identities:

\sin \theta=\dfrac{\text{Opposite}}{\text{Hypotenuse}}

\sin A=\dfrac{a}{c}

\sin A=\dfrac{2}{5\sqrt5}

\sec B=\dfrac{c}{b}

\sec B=\dfrac{5\sqrt5}{11}

Hence, The value of trigonometric identity

\sin A=\dfrac{2}{5\sqrt5}

\sec B=\dfrac{5\sqrt5}{11}

Sonbull [250]3 years ago
7 0
If there is a triangle with Sid a and b then sina b/✓a2+b2and seven=✓a2+b2/a
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What am i supposed to do??
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Exterior angle theorem
16x - 7 = 8x + 2 + 10x - 19    ===>  16x -7 = 18x - 17
16x - 16x - 7 = 18x - 16x - 17 ===> -7 = 2x - 17
-7 + 17 = 2x - 17 + 17             ===> 10 = 2x ======> 5 = x
Plug x in to each equation.
Angle P: 8(5) + 2 = 42 deg, Angle Q: 10(5) - 19 = 31
The sum of interior angles = 180. 180 - 42 -31 = 107 deg (angle of PRQ)
To check that line other angle : 16(5) -7 = 73 deg + 107 = 180 deg


5 0
3 years ago
A photo is 4 inches wide. It is placed inside a frame with a border that is x inches wide. The total width of the photo and the
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3 years ago
You have 23 1/2 pounds of blueberries to store in freezer bags. Each bag holds 3 3/4 pounds of blueberries. What is the minimum
monitta

Answer:

The minimum number of freezer bags needed to store all the blueberries is 7

Step-by-step explanation:

we know that

To find out the number of freezer bags needed , divide the total pounds of blueberries by 3 3/4, but first convert mixed number to an improper fraction

23\frac{1}{2}\ lb=\frac{23*2+1}{2}=\frac{47}{2}\ lb

3\frac{3}{4}\ lb=\frac{3*4+3}{4}=\frac{15}{4}\ lb

\frac{47}{2}:\frac{15}{4}=\frac{47*4}{2*15} =\frac{94}{15}=6.3\ bags

Round up

7 bags

therefore

The minimum number of freezer bags needed to store all the blueberries is 7

7 0
3 years ago
8. Find an equation in standard form for the ellipse with the vertical major axis of length 16 and minor axis of length 4
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Hello,

If center is (0,0)

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\boxed{\dfrac{x^2}{4}+ \dfrac{y^2}{64}=1}\\

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3 years ago
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Step-by-step explanation:

0.03554%.............

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3 years ago
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