The given expression is equivalent to (-1 + cosθ). Option B is correct.
What is trigonometry?The field of mathematics is concerned with the relationships between triangles' sides and angles, as well as the related functions of any angle.
The given data in the problem is;
[tex]\rightarrow \rm (tan(\frac{\theta}{2} )(-5sin\theta)\\\\ \rightarrow \frac{sin \frac{\theta}{2} }{cos \frac{\theta}{2}} \times - (2 sin n \frac{\theta}{2} \times {cos \frac{\theta}{2})[/tex]
[tex]\rightarrow - (2 sin ^2 \frac{\theta}{2})\\\\ -1+cos \theta[/tex]
The given expression is equivalent to (-1 + cosθ).
Hence,option B is correct.
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If ABC ≌ DEF, and m∠A = (x + 30)°, m∠C = 45°, and m∠D = 80°, what is the m∠A? A. 15° B. 45° C. 50° D. 80°
Answer:
I think its 80 not sure
Step-by-step explanation:
The measure of ∠A will be 50°.
What is mean by Triangle?
A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.
Given that;
Δ ABC ≅ Δ DEF
And, m ∠A = (x + 30)°, m ∠C = 45°, and m ∠D = 80°
Now,
Since, Δ ABC ≅ Δ DEF
Hence, m ∠A = m ∠D
Substitute all the values, we get;
m ∠A = m ∠D
x + 30 = 80
Subtract 30 both side, we get;
x = 80 - 30
x = 50°
Thus, The measure of ∠A will be 50°.
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Translate the sentence into an inequality..
The quotient of y and 7 is at least 18.
Answer: [tex]\frac{y}{7} \geq 18[/tex]
Step-by-step explanation:
Key things to remember:
- quotient signals dividing
- at least means greater than or equal to, so we use the greater than or equal to sign
Applying this to the problem, we can translate into a simpler sentence:
y divided by 7 is greater than or equal to 18 --> which leads us to the inequality above
what’s the slope of (9,3) and (2,11)
Answer:
slope = - [tex]\frac{8}{7}[/tex]
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (9, 3) and (x₂, y₂ ) = (2, 11)
m = [tex]\frac{11-3}{2-9}[/tex] = [tex]\frac{8}{-7}[/tex] = - [tex]\frac{8}{7}[/tex]
Answer:
[tex]\boxed {m = -\frac{8}{7}}[/tex]
Step-by-step explanation:
Use the Slope Formula to help you determine the slope of two given points:
[tex]m =\frac{y_{2} - y_{1}}{x_{2} - x_{1}}[/tex]
First point: [tex](x_{1}, y_{1})[/tex]
Second point: [tex](x_{2}, y_{2})[/tex]
-Apply the two given points onto the formula:
First point: [tex](9, 3)[/tex]
Second point: [tex](2, 11)[/tex]
[tex]m =\frac{11 - 3}{2 - 9}[/tex]
-Solve for the slope:
[tex]m =\frac{11 - 3}{2 - 9}[/tex]
[tex]m =\frac{8}{-7}[/tex]
[tex]\boxed {m = -\frac{8}{7}}[/tex]
Therefore, the slope is [tex]-\frac{8}{7}[/tex].
a tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an inital speed of 120 feet per second. which equation correctly models the balls height as a function of time
Answer:
An equation that correctly models the ball's height as a function of time is:
h (t) = - 16t ^ 2 + 130t + 2
Step-by-step explanation:
i hope this helps !
Answer:
h(t) = -16t^2 + 120t + 2
Step-by-step explanation:
PLS MAJOR HELP!!!!!!
Answer:
D
Step-by-step explanation:
not completely sure though
least common multiple (LCM) of 4 and 14.
Answer:
28
Step-by-step explanation:
Answer:
28
Explaination:
A student has started a lawn care business. He charges $15 per hour to mow lawns and $20 per hour for gardening. Because he is still in school, he is only allowed to work for at most 20 hours per week. His goal is to make at least $300 per week.
a. create a system of equations or inequalities that models the situation. define the variables you use.
b. the graph shows one of the relevant equations in this situation. Draw the graph of the other relevant equation.
c. show all the points that represent the number of hours the student can work at each job and meet his goal.
Answer:
:)
Step-by-step explanation:
15x=300
x will equal 20
20x=300
x will equal 15
Inequalities are used to represent unequal expressions
System of equationsRepresent the number of lawns mown by x, and the number of gardens with y.
So, the system of inequalities are:
[tex]x + y \le 20[/tex] --- the number of hours worked, weekly[tex]15x + 20y \le 300[/tex] --- the earnings weeklyGraphSee attachment for the system of inequalities, and all the points that represent the hours worked
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Which of the following options is an equivalent function to f(x) = 4(3)2x? (2 points) f(x) = 36x f(x) = 4(9)x f(x) = 144x f(x) = 4(6x)
Answer:
f(x) = 4(9)x
Step-by-step explanation:
I took the test!!!
Answer:
Answer Down BelowStep-by-step explanation:
Q's Asked: Which of the following options is an equivalent function to f(x) = 4(3)2x?
Possible answers:
f(x) = 36^x
f(x) = 4(9)^x
f(x) = 144^x
f(x) = 4(6x)
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My answer: I Think the correct answer is (B) .The reason why I think the answer is (b) is bc:
[tex]f(x) = 4(3)^{2x}[/tex] =36
Calculations on How I got 36.
Frist we calculate the exponents [tex]\left(3\right)^2[/tex] --> [tex]\left(3\right)^2=9[/tex]---> =9
then we Multiply 4*9 which gives us : 36.
The reason why Its (B) is bc:
f(x) = 4(9)^x
which means 4 times nine is...... 36. thats the answer (B) f(x) = 4(9)^xHope this helps :3
~~Wdfads~~Sandra bought 3/4 pound of carrots. she used 2/3 of them for soup. How many pounds of carrots did she use for the soup
Answer:
She used 14 pounds of carrots for soup.
Step-by-step explanation:
What is the width plz help needed quickly brainiest will be given to whoever answers correctly
Answer:
2/3
Step-by-step explanation
The length of the park has been cut off in the question but if it is one mile, like I think it is, then this is the answer.
A = 2/3
A = L x W
2/3 = 1 X ?
? = 2/3
Answer:
width = 2/3 mile
Step-by-step explanation:
area = L * W
where area = 2/3 mile²
length = 1 mile
width = ?
2/3 = 1 (W)
2 = 3W
W = 2/3 mile
therefore the width = 2/3 mile
length = 1 mile
Jade has 3 bags of apples. There are 6 apples in each bag. Select the three models that represent the number of apples Jade has.
Answer:
6,12,18
3 x 6 = 18
So Jade has 18 apples in total.
Step-by-step explanation:
Amaya is excited to go to the used video game store to buy a game system later today. The game system usually costs x dollars, but today it's on sale at 15% off! Enter an expression that represents the sale price of the game system after the discount.
Answer:
x(85/100)
Step-by-step explanation:
100-15 = 85
x(85/100)
Answer:
0.85x
Step-by-step explanation:
Cost of video game = $x
Discount on sale = 15%
Price of game after discount :
(100 - 15)% * cost of video game
85% * $x
0.85x
Alonzo raises sheep and goats. Alonzo sells each sheep for $125 and each goat for $75. Alonzo raised 14 sheep and goats this year and sold them all for a total of $1,500. How many sheep and how many goats did Alonzo sell?
y = -3/2x + 5/2
Explanation-
slope intercept form is y = mx + b
so we have to solve the equation for y
2y = 5 - 3x
y = 5/2 -3/2x
or
y = -3/2x + 5/2
~ I hope this helped, and I would appreciate Brainliest. ♡ ~ ( I request this to all the lengthy answers I give ! )
Wildlife conservationists are concerned that the deer population might not be constant across the National Forest. The scientists found that there were 144 deer in a 16-square-mile area of the forest. In another part of the forest, conservationists counted 117 deer in a 13-square-mile area. Yet a third conservationist counted 216 deer in a 24-square-mile plot of the forest. Do conservationists need to be worried? a. Why does it matter if the deer population is not constant in a certain area of the National Forest? b. What is the population density of deer per square mile? The unit rate of deer per 1 square mile is _______. Constant of Proportionality: Explain the meaning of the constant of proportionality in this problem: c. Use the unit rate of deer per square mile (or 푦 푥 ) to determine how many deer there are for every 207 square miles. d. Use the unit rate to determine the number of square miles in which you would find 486 deer.
Answer
9 deer per square- mile
Step-by-step explanation:.
A person is 6 feet tall and casts a shadow of 3.2 ft at the same time a tree casts a shadow of 36.8 ft how tall is the tree?
Answer:
18.5
Step-by-step explanation:
HELP ASAP!right answer I’ll give you a crown
Answer:
[tex]y=-\frac{3}{2}x+1[/tex]
Step-by-step explanation:
Slope-intercept form means
[tex]y=mx+c[/tex]
where m is given its the slope which is [tex]-\frac{3}{2}[/tex] and we have the coordinates x and y which is (4, -5) and we need to find the value of c which is the y-intercept so we insert all these values into the equation so ,
[tex]y=mx+c[/tex]
[tex]-5 = -\frac{3}{2}(4)+c[/tex]
[tex]-5=-6+c[/tex]
[tex]c=1[/tex]
now we know the value of slope which is given [tex]-\frac{3}{2}[/tex] and we found the value of which is 1 so we put these values into our original slope-intercept form equation
[tex]y=mx+c\\\\y=-\frac{3}{2}x+1[/tex]
Jane is training for a triathlon. After swimming a few laps, she leaves the health club and bikes 16 miles south. She then runs 12 miles west. Her trainer bikes from the health club to meet Jane at the end of her run. How much farther does Jane travel than her trainer? Answer the questions to find out. 1. What is the total distance Jane travels biking and running? Include units with your answer. Write your answer in the space below. 2. Use the Pythagorean theorem to write an equation for the distance Jane's trainer bikes. Write your answer in the space below. 3. Solve your equation to find the distance Jane's trainer bikes. Show your work. Write your answer in the space below. 4. How much farther does Jane travel than her trainer? Write your answer in the space below.
Answer:
can you Please put screen shot in there
Step-by-step explanation:
22.34 miles much farther does Jane travel than her trainer.
What is Pythagorean theorem?Pythagorean theorem, the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle)—or, in familiar algebraic notation, a2 + b2 = c2.
Here, given that,
she leaves the health club and bikes 16 miles south.
Then, She then runs 12 miles west.
so, we have,
It must be, hypotenuse = 16 miles
base= 12 miles
We have to find, the height.
by Pythagorean theorem, we get,
the distance Jane's trainer bikes=√16²-12² miles
=√32 miles
=5.66 miles
So. she travels in total = 28 miles
22.34 miles much farther does Jane travel than her trainer.
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If a=1, b = 2 and c=-3, find the value of 4a3b2
Answer:
48
Step-by-step explanation:
(4*1)(3*2)*2
4*6*2
48
Simplify.(6x−5+4x^2)+(2x−2)
=6x + −5 + 4 x 2 + 2x + −2
=(4 x 2) + (6x + 2x) + (−5 + −2)
=4 x 2 +8x + −7
Answer - 4 x 2 + 8x + −7
Answer:
(6x-5+4x2) + (2x-2)
Step-by-step explanation:
what google said
Solve the right triangle with the given information (round to the nearest tenth):
angle B =
b =
a =
Answer:
Step-by-step explanation:
m∠B = 90°
m∠C = 90° - 27° = 63°
cos27° = [tex]\frac{200}{b}[/tex] ⇒ b ≈ 224.5
sin27° = [tex]\frac{a}{b}[/tex] ⇒ a ≈ 101.9
Whats the slope ?.please help me
Answer:
The slope is -3.
Which expression has the same sum as the one below - 15 + 16
Answer:
6+(-15)
Step-by-step explanation:
Multiple Choice
What are the equivalent fraction and decimal for 25%?
A. one over twenty-fiveand 0.25
B. twenty-five over twenty-fiveand 4
C. one-fourthand 0.25
D. three-fourthsand 0.4
The perimeter of a rectangle is 152 meters. The width is 22 meters less than 3/4 of its length. Find the length and width.
Pls wat is 2.66 in fraction
Answer:
2 33/50
Step-by-step explanation:
Look at the decimal place. It is in hundreths. So, the decimal itself is 2 66/100. However, once you simplify it, the answer becomes 2 33/50.
Hope this helps =-) have a good day!
The Verrazano Narrows Bridge has a main span of 4,260 feet. The Akashi Kaikyo Bridge has a main span that is 53% longer. What is the length of the main span of the Akashi Kaikyo Bridge to the nearest foot?
The perimeter of rhombus EFGH is 48 cm and the measure of FEJ=60°. (Please help)
Answer:
Hmmmmmmmmm I donno please help
x^2 - x -12 < 0
a) {-3}
b) (-infinity, -3) u (3, infinity)
c) (-3, 4)
d) [-3, 4]
Need more help!
I have to have 20 characters or more to be able to ask the question....
Answer:
m<QRS=48°
m<RSQ=69°
m<RQS=63°
Step-by-step explanation:
Since we know that the measures of the angles of any triangle is 180°, we can form this equation: 7a-1+10a-1+9a=180°
Then, we can use simple algebra to solve for a and plug in that value into the equations that the degrees represent to get our angle measures.
7a-1+10a-1+9a=180°
26a-2=180°
26a=182°
a=7
Now, plug in that value of a and you have your anlage measures!! Hope this helps!! :)
Write the square of (2x+1/x)
Answer:
((2 x^2 + 1)^2)/(x^2)
Step-by-step explanation:
Simplify the following:
(2 x + 1/x)^2
Hint: | Put the fractions in 2 x + 1/x over a common denominator.
Put each term in 2 x + 1/x over the common denominator x: 2 x + 1/x = (2 x^2)/x + 1/x:
((2 x^2)/x + 1/x)^2
Hint: | Combine (2 x^2)/x + 1/x into a single fraction.
(2 x^2)/x + 1/x = (2 x^2 + 1)/x:
((2 x^2 + 1)/x)^2
Hint: | Distribute exponents over quotients in ((2 x^2 + 1)/x)^2.
Multiply each exponent in (2 x^2 + 1)/x by 2:
Answer: ((2 x^2 + 1)^2)/(x^2)