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Aleonysh [2.5K]
3 years ago
13

Find all solutions tan^2 θ − 1 = 0

Mathematics
2 answers:
Kruka [31]3 years ago
5 0
20-1=19............................................................
nignag [31]3 years ago
4 0
20-1=19 hop this helps :)

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Jack wants to plant a border of flowers in the shape of an arc along the edge of a circular walkway. of the circle has a radius
Jet001 [13]
To solve this problem you must apply the proccedure shown below:

 1. You must apply the formula for calculate the arc length, which is:

 arc length=(angle)(radius)

 2- As you can see, <span>the circle has a radius of 5 yards and the angle subtended by the arc measures 1 1/2 radians. Therefore, you have:
</span>
 The angle is:

 1 1/2 radians=1.5 radians

 3. When you susbtitute these values into the formula, you obtain:

 arc length=(1.5 radians)(5 yards)
 arc lenght=7.5 yards

 4. Therefore, the answer is: 7.5 yards.
 
6 0
3 years ago
PLEASE ANSWER FAST What is the average of the following two numbers? 5.67 x 10^-21 and 7.24 x 10^-19
adell [148]

Answer: The average of two numbers is 3.64835\times 10^{-19}.

Explanation:

The first term is,

5.67\times10^{-21}

The second term is,

7.24\times10^{-19}

Average formula is,

Average=\frac{\text{Sum of observations}}{\text{Number of observations}}

Average=\frac{5.67\times10^{-21}+7.24\times10^{-19}}{2}

Average=\frac{5.67\times 10^{-2}\times10^{-19}+7.24\times10^{-19}}{2}

Average=\frac{0.0567\times10^{-19}+7.24\times10^{-19}}{2}

Average=\frac{(0.0567+7.24)\times10^{-19}}{2}

Average=\frac{(7.2967)\times10^{-19}}{2}

Average=3.64835\times10^{-19}

Therefore, the average of two numbers is 3.64835\times 10^{-19}.

4 0
3 years ago
An oval track is made by erecting semicircles on each end of a 60m by 120m rectangle. Find the length of the track and the area
vodomira [7]
Refer to the figure shown below.

Because the question states that the semi circles are at the ends of the rectangle, each semicircle has a radius of 30 m.

The circumference of the oval is
2π(30) + 2*120 = 60π + 240 m = 428.5 m

The area of the oval is 
π(30²) + 60*120 = 900π + 7200 m² = 1.0027 x 10⁴ m²

Note:
If the semi circles are placed on the 120-m sides of the rectangle, then similar calculations yield:
Circumference = 120π + 120 m = 497 m
Area = 3600π + 7200 m² = 1.851 x 10⁴ m²

Answer:
If the semi circles are placed on the 60-m sides of the rectangle, then
Circumference = 60π + 240 m, or 428.5 m
Area = 900π + 7200 m², or 1.0027 x 10⁴ m²

if the semi circles are placed on the 120-m sides of the rectangle, then
Circumference = 120π + 120 m, or 497 m
Area = 3600π + 7500 m², or 1.851 x 10⁴ m²


3 0
4 years ago
PLEASE HELP ME WITH MATH!!! Thank you
Lina20 [59]
Look at the 2 graphs. Restaurant A, the median is 35 (inside the box of plot). For Restaurant B, the median is 25 (shown as a line on that plot). 
So 35-25=10 and therefore the median number of employees at Restaurant A is 10 more than the median at Restaurant B.
5 0
4 years ago
The variable b is equal to 160 more than the product of 5 and c. The variable b is equal to 304 decreased by 3 times c. What is
frosja888 [35]
B=160+ 5c
b= 304- 3c

160+5c=304-3c
+3c             +3c
160+8c=304
-160       -160
8c= 144
c=18
4 0
4 years ago
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