Answers
We have then:
cot (x) = 1 / (tan (x))
Rewriting we have:
cot (x) = 1 / ((sin (x)) / (cos (x)))
We do double c:
cot (x) = cos (x) / sin (x)
Answer:
cot (x) = cos (x) / sin (x)
option 3
Related Questions
Find the value of x°
25°
85°
75°
105°
Answers
25 + 80 = 105
180 - 105 = 75
x = 75
Hope I helped!
Let me know if you need anything else!
~ Zoe (Rank:'Genius')
You know that the sum of angles in a triangle is 180.
So, x + 80 + 25 = 180
x + 105 = 180
x = 75 degress
which of the following must be true?
check ALL that apply,
Answers
_____
The Law of Cosines tells you
.. c^2 = a^2 +b^2 -2ab*cos(θ)
Your problem statement provides a relation involving c^2, so we can substitute to get
.. a^2 +b^2 > a^2 +b^2 -2ab*cos(θ)
.. 0 > -2ab*cos(θ)
.. cos(θ) > 0
In the range 0 ≤ θ ≤ 180°, cos(θ) will be positive for θ < 90°, an acute angle.
Thus A and C are false, B and D are true.
Jean adds 35 and 9. How can she solve using only equations to model her thinking?
Answers
35+9=44
Or she may want to break up the two digit number into two or more parts, for example: (5×6) + (1×5) + 9 = 44 or (7×5) + 9 = 44
Which is a better buy? 20-ounce box of cereal for $3.60 or 28 ounce for $4.20?
Answers
PRODUCT 1:
=$3.60 ÷ 20
= $0.18 per ounce
PRODUCT 2:
= $4.20 ÷ 28
= $0.15 per ounce
ANSWER: The better buy is product two at $0.15 an ounce.
Hope this helps! :)
Identify the reflection rule on a coordinate plane that verifies that triangle A(-1,7), B(6,5), C(-2,2) and A'(-1,-7), B'(6,-5), C'(-2,-2) triangle are congruent when reflected over the x-axis.
Answers
Final answer:
The reflection rule over the x-axis is when a point (x, y) reflects to (x, -y). Applying this rule to triangle A(-1,7), B(6,5), C(-2,2) gives us the reflected points that match the coordinates of A'(-1,-7), B'(6,-5), C'(-2,-2), proving the triangles are congruent.
Explanation:
The student is querying about the reflection of a triangle over the x-axis on a coordinate plane, specifically within the domain of Mathematics. To demonstrate that triangles A(-1,7), B(6,5), C(-2,2) and their reflected counterparts A'(-1,-7), B'(6,-5), C'(-2,-2) are congruent, we will use the reflection rule associated with reflections over the x-axis.
The reflection rule states that when a point (x, y) is reflected over the x-axis, the resulting point will be (x, -y). Applying this rule:
For point A(-1, 7), the reflection over the x-axis would be A'(-1, -7).
For point B(6, 5), the reflection would be B'(6, -5).
For point C(-2, 2), the reflection would be C'(-2, -2).
The reflected points A', B', and C' match the coordinates given for the congruent triangle, thus confirming the triangles are congruent using the reflection rule over the x-axis.
the average number of minutes that it took jermaine to complete his homework assignments for a week in september was 27 minutes, with a mean absolute deviation of 4 minutes. with this informatiom, which statement is true. Pls someone help me
Answers
Answer:
On average, Jermaine spent between 23 and 31 minutes on his homework.
On average, Jermaine spent between 23 and 31 minutes on his homework.
What is Mean absolute deviation?This is defined as the average of the absolute deviations from a central point.
In this scenario, the mean absolute deviation
= 27 ± 4 minutes
= 27+4 or 27 - 4
= 31 or 23 minutes.
Therefore we can infer that Jermaine spent between 23 and 31 minutes on his homework.
Read more about Mean absolute deviation here https://brainly.com/question/447169
8n^2-4(7m^3+5n^2)
help
Answers
8m² - 4(7m³ + 5n²)
You wanna start by using the distributive property
=8n² - (-4)(7m³) + (-4)(5n²)
= 8n² - 28m³ - 20n²
= -28m³ - 12m²
A cell phone uses a 3.0 V battery. The circuit board it uses needs a 0.05 A current. What size resistor is needed to generate this current?
___ Ω
Answers
V = IR
where V - voltage
I - current passing
R - resistance
voltage is the potential difference between 2 points and current passing through these 2 points is proportional to the potential difference, in other words voltage.
V∞I
Resistance is the constant in the equation
the current required to pass through is 0.05 A (amperes)
the battery voltage is 3.0 V (volts)
substituting these values
3 V = 0.05 A * R
R = 3/0.05
R = 60 Ω (ohms)
Answer:
the answer is 60.
Step-by-step explanation:
At Central High School, there are 60 football players and 25 cheerleaders. What is the ratio of cheerleaders to football players? please slimlfy
Answers
Answer:
The answer is 5:12
Step-by-step explanation:
the school library has 97 books about space. John and 3 of his friends, each check out 9 books. how many space books are still in school libarary?
Answers
If a equals James's present age write an expression for his age seven years from now
Answers
MATH HELP PLEASE HELP!!! XPERTS +
(CHECK OUT PROFILE FOR MORE UNANSWERED QUESTIONS)!!!!!!!
Answers
M=the slope
B=the x intercept
So then the equation us y=2/5x+b
Then you solve for b by plugging in the point (-3,-6) for the x and y.
B= -36/5 or -7 1/5
Therefore the slope intercept form is y=2/5x-7 1/5
m = slope
b = y intercept
-6 = 2/5(-3) + b
-6 = -6/5 + b
b = -6 + 6/5
b = 4 4/5
-6 = 2/5(-3) + 4 4/5
using the same equation....
m = 1/3
x = 0
y = -2/5
-2/5 = 1/3(0) + b
1/3(0) = 0
-2/5 = b
y = 1/3x + -2/5
hope this helps
Divide the amounts in the ratio stated £40 in the ratio 2:3
Answers
The division is £16 : £24.
A race car travels at a constant speed of 31m/s along a circular arc of radius 22m. What is the centripetal acceleration? a.) 1.41 m/s2 b.) 0.710 m/s2 c.) 43.7 m/s2 d.) 15.6 m/s2.
Answers
Answer:
C
The equation for this is a=v^2/r
when you plug in it is a=31^2/22=961/22=43.7m/s^2
Step-by-step explanation:
PLZZZ HELP!!!! 15POINTS
In the coordinate plane, what is the length of the line segment that connects points at (4, −1) and (9, 7) ? Enter your answer in the box. Round to the nearest hundredth. units
Answers
9.43
pls give me brainiest
Answer:
9.43 is correct I've taken the test on k-12
Step-by-step explanation:
the angles formed by two perpendicular lines have a measure of
Answers
Angles of perpendicular lines are always 90 degrees.
Hope this helps!
Triangle DEF is congruent to triangle GHI. Side DE measures 52. Side GH measures 10x-13. Side HI measures 12x-16 find the value of x
Answers
Evaluate the expression 28C14
Answers
xCy = x! / (x-y)! y!
! means factorial
(28 x 27 x 26...x 3 x 2 x 1)/(14 x 13 x 12...x 3 x 2 x 1)(14 x 13 x 12...x 3 x 2 x 1) = 40116600
Number of dinners = 125 Individual portion = 8 oz. Size of can = 32 oz. Number of cans required = _____. 2
Answers
125 * 8 = 1000 oz
To get number of cans:
1000 ÷ 32 = 3.125 cans or at least 4 cans to served dinner
Answer:
Number of cans required = 32
Step-by-step explanation:
Number of dinners = 125
Individual portion size of each dinner = 8 oz.
Total portion size of all the dinners = 125 × 8
⇒ Total portion size of all the dinners = 1000 oz.
Size of one can = 32 oz.
[tex]\text{Number of cans required = }\frac{\text{Total portion size of dinner}}{\text{Size of each can}}\\\\\implies\text{Number of cans required = }\frac{1000}{32}\approx 31.25[/tex]
Hence, Number of cans required = 32
Can someone help me please!!
Answers
When we factor out the GCF of -3, we get:
-3(q^2 + 7q + 10)
Next, we must look for two numbers that will serve as coefficients for the variables in factored form. These two numbers must add to 7 (the middle term) and multiply to 10 (the constant or last term). The two numbers that satisfy these parameters are 5 and 2.
Therefore, we must use these numbers to create factors of the innermost factor that we have left, to get:
-3(q+5)(q+2)
The above expression is your final answer, because you cannot factor any more. And remember: you can always check to make sure that your factoring is correct by multiplying out the factors and making sure you get your original trinomial.
I hope this helps!
Tetsuo's savings account has a balance of $1192. After 22 years, what will the amount of interest be at 1.5% compounded annually?
a.
$2622.40
c.
$467.98
b.
$450.98
d.
$461.98
Answers
if 100 envelopes cost 70 cents, how much would 250 cost?
Answers
Dr. Adama is a botanist . She measures thhe daily hieght of a particular variety of sunflower,Sunny yellow,begining when thesunflower is 60 days old. At 60 days,the height of the sunflower is 205 centimeters. Dr. Adama finds that the growty rate ofthis sunflower is 2 centimeters per day after the first 60 days.
Answers
what is the probability of randomly picking a girl without brown hair
Answers
Four sets of data are shown in box-and-whisker plots. Which set has the largest MEDIAN?
Answers
Answer:
It’s c
Step-by-step explanation:
in the science center there were 236 butterflies in the fall and 128 more butterflies in the winter. in the spring ,there were 85 fewer butterflies .how many butterflies are in the science center now
Answers
an investment is expected to pay 5 per year compounded continuously. If you want the value of the investment to be $700,000 after 25 years, how much should you invest initially? Round to the nearest dollar
Answers
700,000 = P·e^(0.05·25) ≈ 3.490343P
Then
700,000/3.490343 = P
You should invest $200,553 initially.
PLZ HELP.ONLY ANSWER IF YOUR 100% SURE. which equation represents a non proportional situation? A. y = 4x B. y = 5x - 1 C. y = 16x D. y = -8x
Answers
-1 is a y-intercept
if there is a y-intercept, it is non proportional
Hope I helped
Let me know if you need anything else!
~ Zoe
PLZ HELP
The price of a technology stock was 9.83
yesterday. Today, the price fell to 9.72
. Find the percentage decrease. Round your answer to the nearest tenth of a percent.
@nilbert
Answers
percent change = ((new value)/(original value) - 1) × 100%
For your numbers, that is
percent change = ((9.72/9.83) - 1) × 100% = -0.01119... × 100%
The decrease in value is about 1.12%
What is the value of a for the following circle in general form? x^2+y^2+ax+by+c=0
Answers
X^2 + y^2 + ax + by + c = 0
Step 1: Add -x^2 to both sides
ax + by + x^2 + y^2 + c + - x^2 = 0 + - x^2
ax + by + y^2 + c = - x^2
Step 2: Add - y^2 to both sides
ax + by + y^2 + c + - y^2 = - x^2 + y^2
ax + by + c = - x^2 - y^2
Step 3: Add - by to both sides
ax + by + c + by = - x^2 - y^2 + - by
ax + c = - by - x^2 - y^2
Step 4: Add - c to both sides
ax + c + - c = by - x^2 - y^2 + - c
ax = - by - x^2 - y^2 - c
Step 5: Divide both sides by x.
ax/x = - by - x^2 - y^2 - c/ x
a = - by - x^2 - y^2 - c/x
Answer is:
a = - by - x^2 - y^2 - c/x
Answer 2:
This circle has a radius of [0 – (–6)]/2 = 3 and is centered at (–2, –3). Drawing a diagram is helpful for getting a grasp on this.
The standard equation for a circle is (x – h)^2 + (y – k)^2 = f^2, where h is the x-coordinate of the center, k is the y-coordinate, and r is the radius length. Substituting our values, the standard equation is:
(x + 2)^2 + (y + 3)^2 = 9
Now expand the squared binomials and reorder the terms to match the specified form:
(x + 2)^2 + (y + 3)^2 = 9
x^2 + 4x + 4 + y^2 + 6y + 9 = 9
x^2 + y^2 + 4x + 6y = 0
And there you go!
The 'a' in the equation refers to the coefficient influencing the horizontal shift of a circle's center. To find 'a', you often need specifics about the circle, such as its center or radius. When such information is provided, the quadratic formula can be used to solve it.
Explanation:The given equation x2+y2+ax+by+c=0 represents the general form of a circle equation. The value of 'a' is a coefficient that impacts the horizontal shift of the circle along the x-axis. Unfortunately, without specific values attached, it is impossible to directly calculate 'a'. Nevertheless, if the equation is compared to the completed square form of a circle equation, i.e., (x-h)2+(y-k)2=r2, you can ascertain that 'a' would be -2h, where h is the x-coordinate of the circle's center.
In specific examples, for instance, if a = 1, b = 0.0211, and c = -0.0211, we can solve for x using the quadratic formula -b ± √b² - 4ac divided by 2a yielding -0.0211 ± √(0.0211)2 − 4(1)(−0.0211)/2(1), where 'a', 'b', 'c' are the coefficients from the equation of a circle in its general form.
Learn more about Circle Equation here:https://brainly.com/question/36026103
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