Answer:
44.81m
Step-by-step explanation:
The set up is right angled
Given the following
Angle of elevation = 35°
Distance from base of building = 64m = adjacent
Height of the building = opposite
Using the SOH CAH TOA identity
Tan theta = opp/adj
tan 35 = x/64
x = 64tan35
x = 64(0.7002)
x = 44.81m
hence the height of the building is 44.81m
what is the vertex of the parabola? y + 1 = -1/4 (x-2)^2
Answer: i took a screen shot hope it helps
Step-by-step explanation:
Find the area of the triangle.
22 m
14 m
Answer:
Area = 154 m²
Step-by-step explanation:
i pressume base = 14 m
height = 22 m
Area of a triangle = 1/2 * base * height
Area = 1/2 * 14 * 22
Area = 154 m²
The area of the triangle is given by the equation A = 154 m²
What is a Triangle?A triangle is a plane figure or polygon with three sides and three angles.
A Triangle has three vertices and the sum of the interior angles add up to 180°
Let the Triangle be ΔABC , such that
∠A + ∠B + ∠C = 180°
The area of the triangle = ( 1/2 ) x Length x Base
For a right angle triangle
From the Pythagoras Theorem , The hypotenuse² = base² + height²
Given data ,
Let the area of the triangle be represented as A
Now , the value of A is
Let the height of the triangle be h
The value of h = 22 m
Let the base of the triangle be b
The value of b = 14 m
Now , area of the triangle = ( 1/2 ) x Length x Base
Substituting the values in the equation , we get
Area of the triangle A = ( 1/2 ) x 22 x 14
Area of the triangle A = 154 m²
Therefore , the value of A is 154 m²
Hence , the area of the triangle is 154 m²
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21 of 30 students mastered their end of unit assessment what percent of the students mastered?
Answer:
70%
Step-by-step explanation:
21/30=0.7
Rewrite the following equation in standard form y = -x - 9
Answer:
The equation is already written in standard form.
:)
On a recent quiz, the class mean was 70 with a standard deviation of 3.6. Calculate the z-score (to at least 2 decimal places) for a person who received score of 81. Z-score: Is this unusual? O Not Un
To calculate the z-score for a person who received a score of 81 on the recent quiz, we use the formula z = (x - μ) / σ, where x is the individual's score, μ is the mean of the class, and σ is the standard deviation of the class. Plugging in the values, we get z = (81 - 70) / 3.6, which simplifies to z ≈ 3.06. The z-score indicates how many standard deviations away from the mean the individual's score is. A z-score of 3.06 suggests that the person's score is quite high relative to the class mean.
To calculate the z-score, we first subtract the mean of the class from the individual's score (81 - 70) to sure the distance between the two values. Then, we divide this difference by the standard deviation of the class (3.6) to standardize the score. The resulting z-score of approximately 3.06 indicates that the individual's score is around 3 standard deviations above the mean. In a normal distribution, z-scores beyond ±2 are generally considered unusual or uncommon. Therefore, a z-score of 3.06 suggests that the person's score is quite exceptional and falls into the category of unusual performance in comparison to the class.
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Evaluate the given expression.
3(x+2)−5x+7
Is these answers correct ?
Can you guys please help
Olivia noticed that a histogram of the monthly payments for apartments in a particular neighborhood was flat and had no peaks. Which of the following statements would be a characteristic of Olivia's graph? a.) The data in the histogram is distributed uniformly. b.) Olivia's graph is positively skewed. c.) The histogram features multimodal distribution. d.) Olivia's graph is negatively skewed.
Histogram of monthly payments for apartments in a particular neighborhood is flat and has no peaks, we can infer that the characteristic of Olivia's graph is that the data in the histogram is distributed uniformly. option A
Option a.) The data in the histogram is distributed uniformly: This option aligns with the description of a flat histogram with no peaks. In a uniform distribution, the data is evenly spread across the range of values, resulting in a flat histogram with no prominent peaks or clusters.
Option b.) Olivia's graph is positively skewed: This option suggests that the histogram would have a longer tail on the right side, indicating a concentration of data towards the lower end of the payment range. However, the given information states that the histogram is flat and lacks peaks, which is contrary to a positively skewed distribution.
Option c.) The histogram features multimodal distribution: A multimodal distribution implies the presence of multiple peaks in the histogram, indicating different modes or clusters within the data. However, the given information explicitly states that the histogram is flat and lacks peaks, making a multimodal distribution unlikely.
Option d.) Olivia's graph is negatively skewed: This option suggests that the histogram would have a longer tail on the left side, indicating a concentration of data towards the higher end of the payment range. However, the given information states that the histogram is flat and lacks peaks, which is contrary to a negatively skewed distribution.
In conclusion, the most appropriate characteristic of Olivia's graph based on the given information is that the data in the histogram is distributed uniformly (option a).
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I need a step by step solution to this algebra 1 level math question (exponents)
Answer:
xStep-by-step explanation:
See the steps as below
\(\cfrac{(x^{1/4})^8}{\sqrt[3]{x^3} } =\)\(\cfrac{x^{(1/4)*8}}{x^{(1/3)*3}} =\)\(\cfrac{x^2}{x} =\)\(x^{2-1}=\)\(x\)The listed price of the pair of pants was $38, but the price with tax came to $39.14. Find the percent sales tax.
well, the difference is 39.14 - 38 = 1.14, so that's the tax.
if we take 38 to be the 100%, just the listed price alone, what is 1.14 off of it in percentage?
\(\begin{array}{ccll} amount&\%\\ \cline{1-2} 38 & 100\\ 1.14& x \end{array} \implies \cfrac{38}{1.14}~~=~~\cfrac{100}{x} \implies 38x=114\implies x=\cfrac{114}{38}\implies x=3\)
An angle measures 36° less than the measure of its supplementary angle. What is the measure of each angle?
Answer:
Measure of each angle is 108 and 72 degrees.
Step-by-step explanation:
Let's the angle be "n"
Supplementary angle = 180 °
n- (180-x) = 36
n - 180 + n = 36
Combine like terms
n - 180 + n = 36
2n - 180 = 36
Add 180 to both sides of the equation
2n - 180+180 = 36+180
Simplify
2n = 216
Divide both sides of the equation by the same term
2n/2 = 216/2
Simplify
n = 108
2n = 216
Measure of each angle
1st = 108
2nd = 180-108 = 72
[RevyBreeze]
Answer:
An angle measures 36° more than the measure of its supplementary angle. What is the measure of each angle?
Step-by-step explanation:
Let's the angle be "n"
Supplementary angle = 180 °
n- (180-x) = 36
n - 180 + n = 36
Combine like terms
n - 180 + n = 36
2n - 180 = 36
Add 180 to both sides of the equation
2n - 180+180 = 36+180
Simplify
2n = 216
Divide both sides of the equation by the same term
2n/2 = 216/2
Simplify
n = 108
2n = 216
Measure of each angle
1st = 108
2nd = 180-108 = 72
Step 1: we know that angle a b c is-congruent-to angle f g h because all right angles are congruent. step 2: we know that angle b a c is-congruent-to angle g f h because corresponding angles of parallel lines are congruent. step 3: we know that line segment b c is-congruent-to line segment g h because it is given. step 4: triangle a b c is-congruent-to triangle f g h because of the asa congruence theorem. aas congruence theorem. third angle theorem. reflexive property.
Based on the given steps the triangle ABC will be Congruent to triangle FGH because of the AAS Congruence .
What is AAS Congruence ?
the two triangle are said to be congruent based on the AAS Congruence when 2 angles and 1 non included side in one triangle are congruent to corresponding 2 angles and 1 non included side in another triangle.
So , in the question , based on the given steps we can say that ,
the two angles that are congruent is angle G and B , and angle A and angle F .
and the side that is congruent is BC = GH .
So the triangle ABC and triangle FGH are congruent by AAS congruence .
Therefore , the correct option is (b) AAS Congruence Theorem .
The given question is incomplete , the complete question is
Step 1: we know that angle a b c is-congruent-to angle f g h because all right angles are congruent.
Step 2: we know that angle b a c is-congruent-to angle g f h because corresponding angles of parallel lines are congruent.
Step 3: we know that line segment b c is-congruent-to line segment g h because it is given.
Step 4: triangle a b c is-congruent-to triangle f g h because of the
(a) ASA congruence theorem.
(b) AAS congruence theorem.
(c) Third angle theorem.
(d) Reflexive property.
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Circle A has points B, G, and D on the circle. Tangents BC and DC intersect at point C outside the circle.
mBGD = 230.4°, mBD = 2°, and m/DCB = 50.4°.
G
230.4°
A
B
D
20
Find the value of x. Round your answer to the nearest tenth, if necessary.
50.4°
The value of x in the circle and the tangent lines is 129.6 degrees
How to determine the value of xFrom the question, we have the following parameters that can be used in our computation:
The circle and the tangent lines
Using the relationship between arcs and tangent lines, we have the following equation
Major arc - Minor arc = 2 * angle between tangents
Substitute the known values in the above equation, so, we have the following representation
230.4 - x = 2 * 50.4
So, we have
230.4 - x = 100.8
This gives
x = 230.4 - 100.8
So, we have
x = 129.6
Hence, the value of x is 129.6
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Can anyone teach me how to do this?
The missing angles and side of the triangle are;
m∠FXD = 44°
EG = 14
m∠FZG = 32°
How to find the angles in a triangle?We are told that the angle bisectors of ΔXYZ are XG, YG and ZG
The parameters are;
∠DYE = 94°
∠FXG = 22°
Thus;
m∠FXD = 2* 22°
m∠FXD = 44°
The sum of angles in a triangle is 180 degrees. Thus;
m∠FZE + 94 + 22 = 180
m∠FZE = 180 - (94 + 22)
m∠FZE = 64°
Thus;
m∠FZG = 64°/2
m∠FZG = 32°
The incenter of a triangle lies at equal distances from the three line segments forming the sides of the triangle, and also from the three lines containing those segments. Thus;
DG = EG = FG = 14
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HELP PLS AND HURRY
Monica spent 3/5 hours listening to tapes of Beethoven and Brahms. She spent 2/7 hours listening to Beethoven. How many hours were spent listening to Brahms?
Answer:
she spent 11/35 hours
Step-by-step explanation:
first we change the denominator to its lcm, which is 35.
second, change its numerator so, 3/5 become 21/35 and 2/7 become 10/35.
then subtract, 21-10=11
so the answer is 11/35
13 points if you help! along with brainliness
The results of the mathematical multiplications contained in the annex to the question are:
27x34= 91864x45= 2,880103x26= 2,678537x42= 22,5542,539x 26= 66,0143,684x12= 44,2085x283x12= 16,980305x25= 7,625What is standard algorithm?It corresponds to the steps used to solve a mathematical problem, it is usually a method taught in elementary school, and is useful for solving problems with the mathematical operations of addition, subtraction, multiplication and division.
Therefore, to solve multiplication problems through the standard algorithm, the student must solve the problem by multiplying the problem in parts, that is, by multiplying one digit at a time from right to left, to arrive at the final solution.
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f(x)=5sinx+cosx then f ′
(x)=−5cosx−sinx Select one: True False
False. The derivative of the function f(x) = 5sin(x) + cos(x) is not equal to -5cos(x) - sin(x). The correct derivative of f(x) can be obtained by applying the rules of differentiation.
To find the derivative, we differentiate each term separately. The derivative of 5sin(x) is obtained using the chain rule, which states that the derivative of sin(u) is cos(u) multiplied by the derivative of u. In this case, u = x, so the derivative of 5sin(x) is 5cos(x).
Similarly, the derivative of cos(x) is obtained as -sin(x) using the chain rule.
Therefore, the derivative of f(x) = 5sin(x) + cos(x) is:
f'(x) = 5cos(x) - sin(x).
This result shows that the derivative of f(x) is not equal to -5cos(x) - sin(x).
In summary, the statement that f'(x) = -5cos(x) - sin(x) is false. The correct derivative of f(x) = 5sin(x) + cos(x) is f'(x) = 5cos(x) - sin(x).
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Solve each system by elimination.
3a+4b = 9 , -3a - 2b = -3
Answer: 1. D.0.5, 2.5
2. B 10,-1
3. B.-6,-6
4. C 7,5
5. D. Infinite number of solutions
6. A. -1,3
7. C. -1,-0.5
8. B. Seven $1....eight $5...
9. D. 200 muffins
10. A. 2y=1.5x-2 D.-4y+3x=-2
Step-by-step explanation:
i did the quiz, Gl, and thx!
the perimeter of a rectangular red sticker is 34 mm. it is 8 mm tall. how wide is it?
Answer:
9mm
Step-by-step explanation:
34-16=18
18/2=9
PLEASE HELP!!!!!
What best describes the expression y over 4 ? (5 points)
A- Some number divided by 4
B- Some number times 4
C- 4 more than some number 4
D- less than some number
Answer:
the answer is a but I have to make that extra long cuz it has to be more than 20 words
Answer:
a i just finished the test
NEED HELP
This graph shows a proportional relationship.
What is the constant of proportionality?
Enter your answer as a ratio in simplified form by filling in the boxes.
The constant of proportionality from the proportional relationship is 3/2
What is Proportional RelationshipA proportional relationship is a mathematical relationship between two variables in which their ratio is always equal. In other words, if x and y are in a proportional relationship, then y/x is always equal to a constant value, called the constant of proportionality. This can be expressed mathematically as y = kx, where k is the constant of proportionality and x and y are the variables in the relationship.
To determine the constant of proportionality, we need to use the proportional relationship given.
y = kx
k = constant of proportionality
3/8 = k(1/4)
Solve for k
k = [(3/8) / (1/4)]
k = 3/2
k = 1.5
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What is 46 degrees Celsius in Fahrenheit?
Celsius and Fahrenheit are units of measurement used to describe temperature. To convert degrees Celsius to Fahrenheit, we can use a simple formula that involves multiplying the Celsius temperature by 9/5 and then adding 32.
Using this formula, we can convert 46 degrees Celsius to Fahrenheit by first multiplying 46 by 9/5 to get 82.8. Then, we add 32 to get 114.8, which means that 46 degrees Celsius is equivalent to 114.8 degrees Fahrenheit. Understanding the relationship between these units can be useful in a variety of situations, such as cooking, determining the weather, and more.
It is important to note that this conversion is not exact and there may be some slight variations depending on the precision of the measurement. However, this formula provides a good approximation for converting temperatures between degrees Celsius and Fahrenheit.
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Find the value of z.
15, -19, 23, -27.. how would you write that in sigma notation?
Answer: i think its zero
Step-by-step explanation:
or u can just look it up on an sigma math calculator and that should give u the answer
The area of a square is 100cm what is the perimeter?
Answer:
your perimeter will be 40cm
The 4 sides of a square are the same length. Find the length of a side by taking the square root of the area.
Side = sqrt(100) = 10 cm
Perimeter = side length x 4
Perimeter = 10 x 4 = 40 cm
the volume of the ice cream cone is increasing at the rate of 10 units3/sec and its radius is increasing at the rate of 1 14 units/sec when the radius r and height h are (r, h)
The rate of change for the height of the ice cream is [10 - (2π / 3) · (1 / 14) · h] / [(π / 3) · r²] units per second.
What is the rate of change of the height of a cone?
The volume of an ice cream cone (V), in cubic units, is described by the following formula:
V = (1 / 3) · (π · r²) · h (1)
Where:
r - Radius of the cone, in units.h - Height of the cone, in units.The rate of change for the height of the cone is derived from differentiating (1) with respect to time:
V' = (1 / 3) · (2π · r) · h · r' + (1 / 3) · (π · r²) · h'
V' = (2π / 3) · h · r' + (π / 3) · r² · h'
h' = [V' - (2π / 3) · h · r'] / [(π / 3) · r²]
Where:
h' - Rate of change of the height, in units per second.V' - Rate of change of the volume, in cubic units per second.If we know that V' = 10 and r' = 1 / 14, then the rate of change for the height of the cone is:
h' = [10 - (2π / 3) · (1 / 14) · h] / [(π / 3) · r²]
The height of the ice cream cone changes at a rate of [10 - (2π / 3) · (1 / 14) · h] / [(π / 3) · r²] units per second.
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Find the volume of the cube in inches3 below. Then select the correct units
when entering your answer.
7 in.
7 in.
7 in
Answer here
cu. cm
cu, in
sq. in
Answer:
21 cubic inches (or cu. in)
Step-by-step explanation: Multiply 7 by three
what is the answer to this 5 ( y + 8)
Answer:
ijsdbf
dsad
Stepdvds-by-step explanation:
d
GIVING BRAINLIESTT!!
Answer:
15) A
Step-by-step explanation:
4x-2 + 7x + 17 = 180
11x + 15 = 180
11x = 165
x = 15
Because the two angles (4x-2 and 7x+17) are linear, we can say that they add up to 180 degrees.
4x-2+7x+17 = 180 Now, simplify like terms
11x + 15 = 180
11x = 165
x = 15
Thus, the value of x would be 15 (choice 1)
Yolanda is buying supplies for school. She buys n packages of pencils at $1.60 per package and m pads
of paper at $2.60 each. What does each term in the expression 1.6n + 2.6m represent? What does the
entire expression represent?
The term 1.6n represents the select)
The term 2.6m represents the (select)
The expression represents the (select)
Answer:
5.2 or 5.2O
Step-by-step explanation:
add 2.6m + 2.60 which means add 2.60 + 2.60
2.60
+2.60
______
5.2 (the zero is optional)