Answer:
Step-by-step explanation:
Don't use 0 as a substitute for θ. 0 is always 0.
cosθ = -5/(2√15)
secθ = 1/cosθ = -2√15/5
The exact value of sec θ is -8.6/5.
What is Trigonometry?One area of mathematics known as trigonometry examines the relationship between the sides and angles of a right triangle. The relationship between sides and angles is defined for 6 trigonometric functions.
We have,
Point(-5, -7).
Here, x= -5 and y= -7
So, r = √x² + y²
r= √(-5)² + (-7)²
r= √25 + 49
r = √74
r= 8.6
So, sec θ= H/ B
= r/x
= 8.6/ (-5)
= -8.6/ 5
Learn more about Trigonometry here:
https://brainly.com/question/16855111
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Does this system have one
olution,
5x + 3y = 1
35x + 21y = 2
Choose the correct answer below.
o One solution
0 Infinitely many solutions
O No solution
Answer:
infinitely many solutions cuz in mathmatices any problem has solution
The auditorium where the spring musical will be performed has 10 seats in the 1st (front) row. Each row behind the Ist row has 4 more seats than does the row in front of it.
how many seats are in the 7th row?
Answer:
38 seats
Step-by-step explanation:
10 + 4x = y
Solve the system by substitution.
y = 8x
y = 4x + 8
Answer:
y = 16
x = 2
Step-by-step explanation:
y = 8x
y = 4x + 8
then, by substitution:
8x = 4x + 8
8x - 4x = 8
4x = 8
x = 8/4
x = 2
y = 8x
y = 8*2
y = 16
Check:
y = 4x + 8
y = 4*2 + 8
16 = 8 + 8
if u help me ur a very nice person :DDD
Answer:
D. -31 is less than -23
Step-by-step explanation:
Describe a strategy to visualize and calculate=20% off
40.
Answer:
32
Step-by-step explanation:
First you're going to change 20% to a decimal which would be 0.20
Next, multiply .20 by 40
You should get 8
Subtract 8 from 40
You're answer is 32
A pizza store sold 36 pepperoni pizzas in a day, which was 24% of their pizza sales.
What was the total number of pizzas sold that day?
Answer:
150 pizzas
Step-by-step explanation
36 pizzas are equivalent to 24% so i divided both sides by 4 which gave me 9 pizzas for 6% . But 6 cannot fully fit into 100 so it will have to be a decimal i did 100 divided by 6 so i would know what i would have to divide both sides by which gave me 50/3 which was 16.66666667 which when i times by 9 by it gave me 150 pizzas
Hope this helps
Find the missing values
HELP (ENGLISH)
Amira is preheating her oven before using it to bake. The initial temperature of the oven is 75° and the temperature will increase at a rate of 20° per minute after being turned on. What is the temperature of the oven 9 minutes after being turned on? What is the temperature of the oven tt minutes after being turned on?
Harley solved the following equation and knows she made a mistake. Explain to her where her error was and then solve the equation correctly.
Answer:
heyy i would help you but you didnt include the equation:)
Evaluate the following expression: 3/7 x 8/9
Answer:
2(3)+
Step-by-step explanation:
just multiply the divider by the numerator
how many yards are in 8.2 Miles?
Answer:
14432 yards I hop this helps
When looking at a graphed System of Equations,
how do you determine which line is the better
deal?
Answer:
Step-by-step explanation:
So, if we are looking to save money, then it would probably be a good choice to go for the least steepest line. Assuming Money stands for the Y axis and Quantity stands for the X axis, then looking at the least steepest line means the lowest Y axis, which translates to the least amount of money.
Need Help On Number 2
Please help!! I will make you brainlest.
Answer:
5) x = 12 6) y = 3.5
Step-by-step explanation:
For number 6 that one may be right I tried several ways and kept getting that answer
5. is completely write though
Hope that helps
Answer:
Question 5: x = 12, Question 6: y = 2[tex]\sqrt{3}[/tex]
Step-by-step explanation:
Use the Pythagorean Theorem to calculate missing sides.
Question 5 explanation: [tex]x^{2} + 9^2 = 15^2[/tex]n: ⇒ [tex]x^{2} + 81 = 225[/tex] ⇒ [tex]x^{2} = 144[/tex] ⇒ [tex]x=12[/tex]
Question 5 explanation: [tex]y^{2}+6^2 =(4\sqrt{3})^2[/tex] ⇒ [tex]y^{2} + 36 = 48[/tex] ⇒ [tex]y^2 = 12[/tex] ⇒ [tex]y=2\sqrt{3}[/tex]
I need help please, I need the answer, I am not good at math :(
? divided by 1/3= 9/10
Answer:
3/10
Step-by-step explanation:
because if you use a calculator that answer would be 0.9 which is 9/10 as a decimal and if u did it yourself then you would do 1/3 x 9/10 and you would get 9/30 which is 3/10 if u simplify it
Miguel is ordering 6 bags of cat food from Canada. Each bag has a mass of 7.5 kg. To determine the shipping costs, Miguel needs to know the total weight in pounds. What is the weight of the cat food in pounds? Use 1 kg = 2.2 lbs and do not round any computations.
Answer:
99 pounds
Step-by-step explanation:
7.5×6=45kg
1kg=2.2lb and we have 45kg because this is direct proportion what you do to one side you havbe to do to the other
so 2.2lb×45 gives you 99 pounds
Can someone help me out please?
Answer:
2067in
Step-by-step explanation:
19x26= 494
13x17=221
26x26x2=1352
494+221+1352=2067
PLEASE SHOW WORK ILL GIVE BRAINLIEST DUE TODAY!!!
14 + 18 ÷ 2 x 18 – 7 5) 60 – 9 x 8 ÷ 8 x 6
15 x 10 + 12 ÷ 3 + 9 6) (10 ÷ 5)3 + 100 – 9 x 11
8 x 4 + 9 – 9 + 18 7) 3 x 8 x 2 – 42 + 5
Answers:
14 + 18 ÷ 2 x 18 – 7 = 169
14 + 9 * 18 - 714 + 162 - 716960 – 9 x 8 ÷ 8 x 6 = 6
60 - 72 / 8 * 660 + -216/460 - 54615 x 10 + 12 ÷ 3 + 9 = 163
150 + 12 / 3 + 9 150 + 4 + 9163(10 ÷ 5)3 + 100 – 9 x 11 = 7
2 * 3 + 100 - 9 * 116 + 100 - 9978 x 4 + 9 – 9 + 18 = 50
32 + 9 - 9 + 1841 - 9 + 1832 + 18 503 x 8 x 2 – 42 + 5 = 11
24 * 2 - 42 + 5 48 - 42 + 5 11i hope this helps, good luck :)
Answer:
Step-by-step explanation:
14 + 18 ÷ 2 x 18 – 7 = 169
14 + 9 * 18 - 7
14 + 162 - 7
169
60 – 9 x 8 ÷ 8 x 6 = 6
60 - 72 / 8 * 6
60 + -216/4
60 - 54
6
15 x 10 + 12 ÷ 3 + 9 = 163
150 + 12 / 3 + 9
150 + 4 + 9
163
(10 ÷ 5)3 + 100 – 9 x 11 = 7
2 * 3 + 100 - 9 * 11
6 + 100 - 99
7
8 x 4 + 9 – 9 + 18 = 50
32 + 9 - 9 + 18
41 - 9 + 18
32 + 18
50
3 x 8 x 2 – 42 + 5 = 11
24 * 2 - 42 + 5
48 - 42 + 5
11
Using two numbers 40 and 32 what is the ratio
Answer:
80%
Step-by-step explanation:
How much is 32 out of 40 written as a percent value? Convert fraction (ratio) 32 / 40 Answer: 80%
two angles of a triangle measure 29 degrees and 12 degrees what is the measure of the third angle?
Answer:
The measurement of the third angle would be 139 degrees.
Step-by-step explanation:
Using the triangle sum theorem, you already know that all interior angles of a triangle add up to 180 degrees. So since you already have two angle measurements, all you have to do is add them together and subtract them from 180 degrees. In this case it is 29+12, which equals 41. Now you subtract that from 180 and get 139.
I hope this helps!
Find the LCM for each pair of numbers. 2, 5 8, 10
Your grandmother has given you a gift of $1500 for your birthday. You are thinking about your future and
considering two different options on how to manage your money. Option A: You take all of your $1500 and
deposit it into a savings account that has a 5% interest rate per year. Option B: You spend $500 on a new
Apple Watch and deposit the remaining $1000 in a savings account that has a 5.5% interest rate per year.
.
Which account would have the most in 10 years? 20 years? Mathematically, explain your reasoning.
Which option would you choose and why?
.
Answer:
B
Step-by-step explanation:
if you put the rest of your money in a savings account you can use that money for your college fund or maybe buy a car ect.
Answer:
OPTION A yields the most money at 10 and 20 years. Hence Option A is the better choice for "thinking about your future"
Step-by-step explanation:
In the absence of any more information, I am going to assume that Simple Interest applies. (see attached)
hence the applicable formula is:
A = P(1+rt), where
A = final amount after t years
P = Principal (beginning) amount ($1500 for option A and $1000 for option B)
r = annual interest rate (5% = 0.05 for option A and 5.5% = 0.055 for option B)
t = time (we are asked to evaluate t = 10 years and t = 20 years)
For option A :
P = $1500 and r = 5% = 0.05
A = P(1+rt)
A = 1500 [ 1 + (0.05)t]
at 10 years: A = 1500 [ 1 + (0.05)(10)] = $2,250
at 20 years: A = 1500 [ 1 + (0.05)(20)] =$3,000
For option B :
P = $1000 and r = 5.5% = 0.055
A = P(1+rt)
A = 1000 [ 1 + (0.055)t]
at 10 years: A = 1000 [ 1 + (0.055)(10)] = $1,550
at 20 years: A = 1000 [ 1 + (0.055)(20)] = $2,100
Comparing all the 4 results above, we can see that OPTION A yields the most money at 10 and 20 years. Hence Option A is the better choice for long term returns.
(a) An angle measures 51°. What is the measure of its complement?
(b) An angle measures 113°. What is the measure of its supplement?
Step-by-step explanation:
For a
Let the another angle be x then
x + 51° = 90° {being complementary angles }
x = 90° - 51°
x = 39°
For b
Let the another angle be x then
x + 113° = 180° {being supplementary angles }
x = 180° - 113°
x = 67°
2 1/3:4 1/2 write the ratio as a fraction in simplest form
Answer:
14/27
Step-by-step explanation:
7/3 ÷ 9/2
7/3 x 2/9 = 14/27
12.7
4. Mariana compró 46 pies de listón azul, para hacer adornos navideños, ¿cuántos
centímetros de listón tiene? (1 pie=0.3048 m)
1
3
14
Answer:
3500cmnjdkslkrkdjdsllwldkkdkrkfjfrkrk
Two groups are hiking at about the same speed . Mario’s group hikes for 2.5 hours Seemas group hikes for 4.7 hours and covers 8.8 more miles . How fast are the kickers going ? Solve the equation below to find out . 4.7x=2.5x+8.8
Answer: 18.8 miles
Step-by-step explanation:
Ww are given the equation 4.7x=2.5x+8.8 to solve the question. This will be:
4.7x = 2.5x + 8.8
Collect like terms.
4.7x - 2.5x = 8.8
2.2x.= 8.8
x = 8.8/2.2
x = 4
To know how fast the kickers are going will be
4.7x = 4.7 × 4 = 18.8 miles
Work out the size of angle x.
Not drawn accurately
132°
X Х
54°
Answer:
x = 84
Step-by-step explanation:
The sum of the angles around a point = 360°
sum the given angles and equate to 360
x + 132 + 54 + 90 = 360
x + 276 = 360 ( subtract 276 from both sides )
x = 84
Answer:
x = 84°
Step-by-step explanation:
→ Recall the fact that angles around a point add up to 360°
360 - (90 + 54 + 132 ) = x
→ Simplify
360 - 276 = x
→ Simplify again
84 = x ∴ x = 84°
Maria is a florist in a small boutique. If Maria paid her supplier 8.50$/dozen for roses and sold them for 19.95$, what was the mark up in percent?
Answer:
The markup percentage was 135%.
Step-by-step explanation:
In order to find the markup percent, you have to take the sales price minus the cost and divide that by the cost. Then, you have to multiply by 100 to establish the markup percentage:
markup percentage=((19.95-8.50)/8.50)*100
markup percentage=(11.45/8.50)*100
markup percentage=135%
According to this, the answer is that the markup percentage was 135%.
Find A, 120°,140°,95°,80°
Answer:
a looks congruent to 95° so it's maybe around 95°
Step-by-step explanation:
i'm not sure sorry, but i think it's close to 95°
