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Ludmilka [50]
3 years ago
14

What is the sum of the polynomials?11x2-5+ x+4​

Mathematics
1 answer:
Paul [167]3 years ago
6 0

Answer:

23x-1

Step-by-step explanation:

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Let (6,-5) be a point on the terminal side of θ. Find the exact values of sin θ, sec θ, and tan θ.
makvit [3.9K]

Answer:

sinθ = -5/√61

secθ = √61/6

tanθ = -5/6

Step-by-step explanation:

From the given coordinate (6, -5), x = 6 and y = -5. This shows that the point lies in the 4th quadrant. In the fourth quadrant, only cos θ is positive, both sin θ and tan θ are negative.

Let us get the value of the radius 'r' first before calculating the trigonometry identities.

Using the Pythagoras theorem;

r^2 = x^2 + y^2\\r^2 = 6^2 + (-5)^2\\r^2 = 36+25\\r^2 = 61\\r = \sqrt{61}

Using SOH, CAH, TOA to get the trigonometry identities;

Given x = 6, y =5 and r = √61

sin \theta = opp/hyp = y/r\\sin \theta = 5/\sqrt{61} \\

Since sin θ, is negative in the fourth quadrant, sin \theta = -5/\sqrt{61} \\

cos \theta = adj/hyp = x/r\\cos \theta = 6/\sqrt{61} \\

sec \theta = \frac{1}{cos \theta} \\sec \theta = \frac{1}{6/\sqrt{61}  } \\sec \theta = \frac{\sqrt{61} }{6}

For tanθ:

tan \theta = \frac{opp}{adj} = \frac{y}{x}  \\tan \theta = \frac{5}{6}\\

Since tan θ, is negative in the fourth quadrant, tan \theta = -5/6

7 0
4 years ago
A kitchen floor measures 9 feet by 12 feet. The owner wants to lay 18-inch by 18-inch ceramic tile to completely cover the floor
Dmitry [639]
Area of floor = 9x12
= 108

Area of tile= 1.5x1.5= 2.25 (that's in feet)

108/2.25= 48 tiles
3 0
4 years ago
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3^3 - 5 x 9 + 6 - 29
xxMikexx [17]

Answer:

-41

Step-by-step explanation:

3^3-5x9+6-29

calculate exponents 3^3=27

now write as; 27-5x9+6-29

now multiply and divide (left to right) 5x9=45

now rewrite as 27-45+6-29

now add and subtract(left to right) 27-45+6-29= -41

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3 years ago
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Find the gradient and intercept on the x and y axes of the straight line with the following equation.
PilotLPTM [1.2K]

Answer:

gradient is 5

Step-by-step explanation:

x intercept, replace y with 0

y +5x= 13

0+ 5x =13

0 - 13= -5x

-13= -5x

-13/-5 = -5x/-5

x = 13/5

y intercept, replace x with 0

y+5x=13

y+5(0)=13

y+0=13

y =13

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3 years ago
A<br> 10A<br> B<br> 2a +6<br> E<br> +6<br> C<br> 8<br> D<br> What is AE
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It’s b svshrbbesn Siri
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