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Alika [10]
3 years ago
11

B. The total cost (1) after 8% sales tax is added to an item's price (p): 1.08p =

Mathematics
1 answer:
scoundrel [369]3 years ago
6 0

Answer:

No

Step-by-step explanation:

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What is the area of this figure? :)
aliya0001 [1]
There are 4 semicircles, each radius is 8cm, so we get the total areas of these semicircles: 4×0.5×8^{2}π
and the square area: 16²
so the total area of figure: 16²+4×0.5×8^{2}π=256+128π
8 0
3 years ago
Evaluate the expression under the given conditions. tan(2); cos() = 5 13 , in quadrant i
Nataliya [291]

The solution to given expression tan(2θ) is 22.615°

For given question,

We have been given an expression tan(2θ)

Given that cos(θ) = 5/13, and θ is in quadrant 1.

We know that the trigonometric identity

sin²θ + cos²θ = 1

⇒ cos²θ = (5/13)²

⇒ sin²θ = 1 - 25/169

⇒ sin²θ = 169 - (25/169)

⇒ sin²θ = 144/169

⇒ sin(θ) = 12/13

We know that the identity cos(2x) = cos²x - sin²x

⇒ cos(2θ) = cos²θ - sin²θ

⇒ cos(2θ) = 25/169 - 144/169

⇒ cos(2θ) = -119/169

And sin(2x) = 2sin(x)cos(x)

⇒ sin(2θ) = 2sin(θ)cos(θ)

⇒ sin(2θ) = 2 × 12/13 × 5/13

⇒ sin(2θ) = 120/169

We know that, tan(x) = sin(x)/cos(x)

⇒ tan(2θ) = sin(2θ)/cos(2θ)

⇒ tan(2θ) = (120/169) / (-119/169)

⇒ tan(2θ) = 120 / (-119)

⇒ tan(2θ) = -1.008

Since θ is in quadrant 1, tan(2θ) = 1.008

⇒ 2θ = arctan(1.008)

⇒ 2θ = 45.23

⇒ θ = 22.615°

Therefore, the solution to given expression tan(2θ) is 22.615°

Learn more about the expression here:

brainly.com/question/14961928

#SPJ4

7 0
2 years ago
Let f(x) = –4x and g(x) = 5x2. Andrew finds the composition [f o g](x) as shown below. What error did Andrew make? = 5(–4x)2 = 5
Elden [556K]
F(g(x)) means you take the g function and put it into x in the f function.  He took the function and put it into the g, which was the incorrect order.  He should have had this: f(g(x))=-4(5x^2)
7 0
3 years ago
Read 2 more answers
How much ceros have 5 million?
Mandarinka [93]

Answer:

6 zeros

Step-by-step explanation:

5000000

U 2 can help me by marking as brainliest.....

3 0
2 years ago
Read 2 more answers
The radius of a circle is 9 centimeters what is the circles circumference
neonofarm [45]

Answer:

56.55

Step-by-step explanation:

C=2πr=2·π·9≈56.54867

6 0
3 years ago
Read 2 more answers
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