Answers
The solution is the missing angle is 74.
Here, we have,
The sum of all the angles of a triangle (of all types) is equal to 180°.
The sum of the length of the two sides of a triangle is greater than the length of the third side.
In the same way, the difference between the two sides of a triangle is less than the length of the third side.
here, we have,
from the given diagram, we get,
the given angles are 55 and 51
let, the missing angle be x
we know that,
The sum of all the angles of a triangle (of all types) is equal to 180°.
so, x+55+51 = 180
or, x + 106 = 180
or, x = 74
Hence, The solution is the missing angle is 74.
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Related Questions
How many solutions does this equation have 10+ 6k6k
Answers
Answer:
10 + 36k²
Step-by-step explanation:
considering that it is not an equation but an algebraic expression we solve it like this
10 + 6k6k =
10 + 36k²
Solve for x 3x + 1 ≤2-x< 18+ 7x
Answers
3x + 1 ≤ 2 - x < 18 + 7x
Add x to both sides of the inequality:
4x + 1 ≤ 2 < 18 + 6x
Subtract 1 from all sides:
4x ≤ 1 < 18 + 6x
Subtract 6x from all sides:
-2x ≤ 1 < 18
Divide all sides by -2. Since we are dividing by a negative number, we need to reverse the direction of the inequality:
-2x ≥ -9 and -2x < -1
Simplify:
x ≤ 4.5 and x > 0.5
Therefore, the solution is 0.5 < x ≤ 4.5.
Answer:
X can be any number greater than -2 and less than or equal to 1/4.
Step-by-step explanation:
To solve for x in the inequality 3x + 1 ≤ 2 - x < 18 + 7x, we will first isolate the variable x on one side of the inequality.
3x + 1 ≤ 2 - x
Adding x to both sides, we get:
4x + 1 ≤ 2
Subtracting 1 from both sides, we get:
4x ≤ 1
Dividing both sides by 4, we get:
x ≤ 1/4
Next, we solve the second inequality:
2 - x < 18 + 7x
Adding x to both sides, we get:
2 < 18 + 8x
Subtracting 18 from both sides, we get:
-16 < 8x
Dividing both sides by 8, we get:
-2 < x
Therefore, the solution to the inequality 3x + 1 ≤ 2 - x < 18 + 7x is:
-2 < x ≤ 1/4
This means that x can be any number greater than -2 and less than or equal to 1/4.
Kendra is doing her math homework. For each problem, she uses 12
1
2
of a sheet of paper. How many sheets of paper will she need to complete 10 problems?
Answers
There are 5 sheets of paper will she need to complete 10 problems.
We have to given that;'
Kendra is doing her math homework. For each problem, she uses 1/2 of a sheet of paper.
Hence, For complete 10 problems, number of sheets are,
⇒ 1/2 of 10
⇒ 1/2 x 10
⇒ 5
Thus, There are 5 sheets of paper will she need to complete 10 problems.
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PLEASE HELP (WILL GIVE BRAINLIEST)
Answers
Answer:
144π = (1/2)(4/3)π(r^3)
144 = (2/3)(r^3)
r^3 = 216, so r = 6 mm, meaning the diameter is 2 × 6 mm = 12 mm.
Find the surface area of the prism
Answers
The surface area of the triangular prism is 70.2 yd²
What is surface area of prism?A prism is a solid shape that is bound on all its sides by plane faces.
The surface area of a prism is expressed as ;
SA = 2B +ph
where h is the height,
B is the base area and
p is the perimeter of the base
Base area = 1/2 bh( since the base Is a triangle)
Base area = 1/2 × 3 ×3 = 4.5yd²
The other side of the triangle is calculated as;
x= √ 3²+3²
x = √9+9
x = √18
x = 4.2
Therefore perimeter = 4.2 + 3+3 = 10.2yds
SA = 2× 4.5 + 10.2 × 6
SA = 9 + 61.2
SA = 70.2 yd²
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In the diagram, m < AFB = 78
Which angle is complementary to
Answers
The angle BFC is the angle that is complementary to AFB
What is a complementary angleWhenever the sum of two angles adds up to 90 degrees, they are defined as complementary angles. Take 30 and 60 degrees, for instance; they are complementary angles.
From the definition we have to find the angle when if added to AFB would give us the sum of 90 degrees
AFC is a 90 degree angles
We have AFC = AFB + BFC
90 = 78 + BFC
BFC = 90 - 78
= 12
Hence the angle BFC is the complementary angle
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What function is represented in the graph?
Select one:
У = 3(4^x)
y = 4(3^x)
y = 4(.25)^x
y = 2(.25^x)
Answers
Answer:
The correct function is y = 4(.25^x).
During certain time periods at a hospital, patients arriving at the emergency room have waiting times that are uniformly distributed between 0 and 7 minutes. Assume that a patient is randomly selected, and find the probability that the waiting time is less than 0.75 minutes. (Round to three decimal places)
Answers
Since the waiting times are uniformly distributed between 0 and 7 minutes, the probability density function (PDF) of the waiting time is:
f(x) = 1/7 for 0 ≤ x ≤ 7
0 otherwise
To find the probability that the waiting time is less than 0.75 minutes, we need to integrate the PDF from 0 to 0.75:
P(X < 0.75) = ∫[0,0.75] f(x) dx
P(X < 0.75) = ∫[0,0.75] 1/7 dx
P(X < 0.75) = [1/7 * x] [0,0.75]
P(X < 0.75) = 1/7 * 0.75
P(X < 0.75) = 0.1071
Therefore, the probability that the waiting time is less than 0.75 minutes is 0.1071 (rounded to three decimal places).
QUESTION SIX Solve the following problems: (a) Find the gradient, x and y intercepts of 3x + 4y + 12 = 0. Sketch the graph. (6 Marks) (b) Find the gradient, x and y intercepts of the line I, passing through the points P (-1,4) and Q (3,0). Sketch the graph. (6 Marks) (c) A line 1₂ is perpendicular to 4. Find its gradient. (2 Marks) (14 Marks)
Answers
The sketches of the graphs are added as an attachment and the gradient of the perpendicular line l₂ is 1
Finding the gradient, x and y interceptsGiven that
3x + 4y + 12 = 0
Set x = 0 to determine the y-intercept
4y + 12 = 0
So, we have
y-intercept = -3
Set y = 0 to determine the x-intercept
3x + 12 = 0
So, we have
x-intercept = -4
For the gradient, we make y the subject in 3x + 4y + 12 = 0.
y = -3/4x - 12/4
y = -3/4x - 3
So, the gradient is -3/4
The sketch of the graph is attached.
Finding the gradient, x and y interceptsHere, we have the points P (-1,4) and Q (3,0).
The gradient is
gradient = (0 - 4)/(3 + 1)
gradient = -1
From the point, we have
x-intercept = 3
For the y-intercept, we have
(0 - 4)/(3 + 1) = (y - 4)/(0 + 1)
(y - 4)/(0 + 1) = -1
y - 4 = -1
y-intercept = 3
So, the equation is
y = -x + 3
The sketch of the graph is attached.
Finding the gradient of l₂We understand that l₂ is perpendicular to l
The gradients of perpendicular lines are
Gradient 1 = -1/Gradient 2
So, we have
l₂ = -1/-1
Evaluate
l₂ = 1
Hence, the gradient of line l₂ is 1
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For questions 18-19, describe the end behavior of the graph for each function.
18. f(x) = x³ +2x² - 5x+1
19. g(x) = -2x³-8x2 +18x+72
Answers
Answer:
18. The end behavior of the graph of f(x) = x³ + 2x² - 5x + 1 is as follows: as x approaches negative infinity, the function f(x) approaches negative infinity, and as x approaches positive infinity, the function f(x) approaches positive infinity. This is because the leading term of the polynomial is x³, which has a positive coefficient, so the graph of the function will have a "smile" shape, with the ends of the graph pointing upwards.
19. The end behavior of the graph of g(x) = -2x³ - 8x² + 18x + 72 is as follows: as x approaches negative infinity, the function g(x) approaches negative infinity, and as x approaches positive infinity, the function g(x) approaches negative infinity. This is because the leading term of the polynomial is -2x³, which has a negative coefficient, so the graph of the function will have a "frown" shape, with the ends of the graph pointing downwards.
Step-by-step explanation:
A
Select the correct answer.
Which system of linear inequalities is represented by this graphed solution?
OA y> -+2
V≤ 32-1
OB V<= +2
v2 32-1
Ocy> -2x + 2
vs-1
OD S-2 +2
v < 30-1
Answers
The two inequalities of the graph are:
y ≥ 3x - 1
y < -¹/₂x + 4
How to identify inequality graph?
The general form of the equation of a line in slope intercept form is:
y = mx + c
where:
m is slope
c is y-intercept
An inequality can be represented graphically as a region on one side of a line. Inequalities that use < or > symbols are plotted with a dashed line to show that the line is not included in the region. Inequalities that use ≤ or ≥ symbols are plotted with a solid line to show that the line is included in the region.
The first inequality with a solid line has a y-intercept of -1 and since it is shaded above the line, we will use ≥.
Two coordinates on the line are: (0, -1) and (1, 2)
The slope = (2 + 1)/(1 - 0) = 3
Thus, inequality is:
y ≥ 3x - 1
The second inequality with a dashed line has a y-intercept of 4 and since it is shaded below the line, we will use <.
Two coordinates on the line are: (4, 0) and (0, 2)
The slope = (2 - 0)/(0 - 4) = -1/2
Thus, inequality is:
y < -¹/₂x + 4
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A children's clothing company sells hand-smocked dresses for girls. The length of one particular size of dress is designed to be 29 inches. The company regularly tests the lengths of the garments to ensure quality control, and if the mean length is found to be significantly longer or shorter than 29 inches, the machines must be adjusted. The most recent simple random sample of 22 dresses had a mean length of 31.53 inches with a standard deviation of 8.24 inches. Assume that the population distribution is approximately normal. Perform a hypothesis test on the accuracy of the machines at the 0.005 level of significance. Step 3 of 3: Draw a conclusion and interpret the decision. Answer Tables Keypad Keyboard Shortcuts We reject the null hypothesis and conclude that there is insufficient evidence at a 0.005 level of significance that the mean length of the O particular size of dress is found to be significantly longer or shorter than 29 inches and the machines must be adjusted. O We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.005 level of significance that the mean length of the particular size of dress is found to be significantly longer or shorter than 29 inches and the machines must be adjusted. O We reject the null hypothesis and conclude that there is sufficient evidence at a 0.005 level of significance that the mean length of the particular size of dress is found to be significantly longer or shorter than 29 inches and the machines must be adjusted. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.005 level of significance that the mean length O of the particular size of dress is found to be significantly longer or shorter than 29 inches and the machines must be adjusted.
Answers
We will conduct a one-sample t-test to determine if the mean length of the particular size of dress is significantly different from 29 inches.
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We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.005 level of significance that the mean length of the particular size of the dress is found to be significantly longer or shorter than 29 inches and the machines must be adjusted.
What is the null hypothesis?
The null hypothesis is the assertion that there is no association between the two sets of data or variables being investigated in a scientific study. The term "null" refers to the idea that any empirically observed difference is entirely attributable to chance and that no underlying causal relationship exists.
Here, we have
Given: A children's clothing company sells hand-smocked dresses for girls. The length of one particular size of the dress is designed to be 29 inches. The most recent simple random sample of 22 dresses had a mean length of 31.53 inches with a standard deviation of 8.24 inches.
We will conduct a one-sample t-test to determine if the mean length of the particular size of the dress is significantly different from 29 inches.
In the null hypothesis, the mean length of the particular size of the dress is equal to 29 inches.
In the alternative hypothesis, the mean length of the particular size of the dress is significantly longer or shorter than 29 inches.
We will use a 0.005 level of significance, which corresponds to a critical value of ±2.807 for a two-tailed test with 21 degrees of freedom.
Our test statistic is: t = (31.53 - 29) / (8.24 / sqrt(22)) = 1.774
Since our test statistic (1.774) is not greater than the critical value (2.807) or less than the negative of the critical value (-2.807), we fail to reject the null hypothesis.
Hence, We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.005 level of significance that the mean length of the particular size of the dress is found to be significantly longer or shorter than 29 inches and the machines must be adjusted.
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Please answer number 3
Answers
For 3 personal training session both gym cost same.
We have,
At Silver gym, membership is $25 per month and personal training sessions are $30 each.
At Fit Factor, membership is $65 per month, the and personal training sessions are $20 each.
let the number of personal session be x.
So, 25+ 30x = 65 + 20x
30x - 20x = 65 - 25
10x = 30
x= 3 sessions
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7.35 km = _______ mm
Answers
Answer: 7.35 km = 7350000 mm
Step-by-step explanation:
Multiply km by 1000000
7.35 * 1000000 = 7350000 mm
A set of data items is normally distributed with a mean of 80 and a standard deviation of 9. Convert 71 to a z-score.
271 = 0
(Type an integer or a decimal.)
Answers
The z-score for 71 is -1.
Understanding Z-score calculationz-score is a measure of how many standard deviations an observation or data point is away from the mean of a distribution.
It is calculated by subtracting the mean from the observation and then dividing the result by the standard deviation: z = (x - μ) / σ
A positive z-score means that the data point is above the mean, while a negative z-score means that it is below the mean.
Applying the formula to solve our question
Here is a proven formula to use:
z = (x - μ) / σ
where:
x = the data item (x = 71)
μ = the mean of the distribution (μ = 80)
σ = the standard deviation of the distribution (σ = 9)
Substituting the values, we get:
z = (71 - 80) / 9
z = -1
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Answers for these test question, thank you
Answers
The missing lengths of the following two triangles:
Case 1: x = 50 km
Case 2: x = 40 km
Case 3: Obtuse
Case 4: Acute
Case 5: Right
Case 6: m = 16, n = 8√3
Case 7: x = 3√2, y = 3
How to find the length of missing sides in a triangle
In this problem we must determine all missing lenghts in a triangle, this can be done by law of cosine:
x² = a² + b² - 2 · a · b · cos X
Where X is the angle opposite to side x.
Now we proceed to determine the missing lengths of the following two triangles:
Case 1
x = √[(14 km)² + (48 km)² - 2 · (14 km) · (48 km) · cos 90°]
x = 50 km
Case 2
x = √[(24 km)² + (32 km)² - 2 · (24 km) · (32 km) · cos 90°]
x = 40 km
In addition, we can determine if any triangle is acute, obtuse and right also by law of cosine:
cos X = - (x² - a² - b²) / (2 · a · b)
Case 3
cos X = - [(18 in)² - (12 in)² - (9 in)²] / [2 · (12 in) · (9 in)]
cos X = - 0.458 (Obtuse)
Case 4
cos X = - [(15 ft)² - (12 in)² - (14 in)²] / [2 · (12 in) · (14 in)]
cos X = 0.342 (Acute)
Case 5
cos X = - [(5 ft)² - (3 in)² - (4 in)²] / [2 · (3 in) · (4 in)]
cos X = 0 (Right)
Finaly, we determine the missing lengths of two right triangles by trigonometric functions:
sin θ = y / r
cos θ = x / r
tan θ = y / x
Now we find the missing lengths:
Case 6
m = 8 / cos 60°
m = 16
n = 8 · tan 60°
n = 8√3
Case 7
x = 3 / sin 45°
x = 3√2
y = 3 / tan 45°
y = 3
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Find the x - and y -intercepts of the following equation: 3x-2y=5 ?
Answers
The x-intercept will be (5/3, 0) and the y-intercept will be (0, -5/2).
The x-intercept of an equation is the point at which the graph of the equation intersects the x-axis, which means that the y-coordinate of that point is 0. To find a x-intercept, we can set y = 0 in equation and solve for x.
Given the equation: 3x - 2y = 5
Setting y = 0, we get;
3x - 2(0) = 5
3x = 5
x = 5/3
So, the x-intercept is (5/3, 0).
The y-intercept of an equation is the point at which the graph of the equation intersects the y-axis, which means that the x-coordinate of that point is 0. To find y-intercept, we can set x = 0 in equation and solve for y.
Setting x = 0, we get;
3(0) - 2y = 5
-2y = 5
y = -5/2
So, the y-intercept is (0, -5/2).
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topic: upper and lower bounds
why does there need to be a 5 placed at the end of 8.23, 8.24, 3.4 and 3.5?
Context cleared up in the picture provided:
Answers
Note that the upper bound for v is 2.356.
What is the explanation for the above figure?
To find the upper bound for v, divide te upper bound for s by the lower bound for t, because dividing by a smaller integer give a bigger quotient.
Adding 0.5 x 0.1 t to the value of s yields the upper bound for s with t decimal places.
As a result, the upper bound for s with two decimal places is......
8.24 + 0.5 x 0.1² = 8.245
The lower bound for t with 1 decimal place is simply the given value of 3.5.
So, the upper bound for v is ..
v = s/t = 8.245/3.5 = 2.355714...
Rounding this to 3 decimal places, we get:
v ≈ 2.356
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Factor each polynomial function. Based on these factors, which polynomial’s graph crosses the x-axis at only one point? A. f ( x ) = x 3 − 7 x 2 + 3 x − 21 B. f ( x ) = x 3 − 3 x 2 − 4 x + 12 C. f ( x ) = x 3 + 2 x 2 − 9 x − 18 D. f ( x ) = x 3 − 2 x 2 − 16 x + 32
Answers
Based on these factors, the polynomial that graph crosses the x-axis at only one point is A. f ( x ) = x ³ − 7 x² + 3 x − 21
What is a polynomial?A polynomial in mathematics is a mathematical statement made up of variables (also known as indeterminates) and coefficients that only include the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.
Polynomials are a fundamental algebra topic that is used in many areas of mathematics. A polynomial's degree is the largest exponent of the variable x in the expression. The correct option is A.
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If someone could help me out with this I would be really grateful
Answers
Answer:
Step-by-step explanation:
Blue line: 0 + -4<x
Black line: 8 - 7<7
Orange: 0=0>y
Green: 1-9<y
Starting points and ending
What has no solutions in common with 6x+2y=12
Answers
Answer:
-6x - 2y = 12
Step-by-step explanation:
Please help its due soon
Answers
The ratio of sec θ is determined as 5/3.
option A.
What is the ratio of secθ?The ratio is sec θ is calculated by applying the following method;
sec θ = 1/cosθ
Given that tanθ = -4/3 = oppo/adjacent
The hypotenuse side is calculated by applying Pythagoras theorem as shown below;
h = √ 4² + 3²
h = 5
The ratio of sec θ is calculated as follows;
sec θ = 1/cosθ
1/cosθ = 1/(3/5)
1/cosθ = 5/3
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The annual profits for a company are given in the following table, where x represents the number of years since 2012, and y represents the profit in thousands of dollars. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest tenth. Using this equation, find the projected profit (in thousands of dollars) for 2022, rounded to the nearest thousand dollars.
Answers
The linear regression equation is y = 22.6x + 52.33
The profit would reach 234 thousand dollars during the calendar year of 2020.
How to calculate the valueReplacing the means, the intercept a is given by:
108.8 = 22.6(2.5) + a.
a = 108.8 - 22.6(2.5)
a = 52.33
Therefore, the linear regression equation is y = 22.6x + 52.33
The profit would reach 234 thousand dollars during the calendar year of 2020.
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Answer:
Step-by-step explanation:
The coordinate of the points below represents the vertices of a rectangle what is the perimeter in units of the rectangles WXYZ
Answers
The perimeter of the rectangle is P = 18 units
Given data ,
Let the rectangle be represented as ΔWXYZ
Now , the coordinates of the triangle are
W ( 3 , 3 ) , X ( 8 , 3 ) , Y ( 8 , 7 ) and Z ( 3 , 7 )
The perimeter of the rectangle = 2 ( length + width )
The width of the rectangle W = ( 7 - 3 ) = 4 units
The length of the rectangle L = ( ( 8 - 3 ) = 5 units
So , P = 2 ( 4 + 5 )
P = 2 x 9
P = 18 units
Hence , the perimeter is 18 units
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Solve (x+1)2 =13/4 using the square root property
Answers
Answer:
Starting with the equation:
(x + 1)^2 = 13/4
We can use the square root property, which states that if a^2 = b, then a is equal to the positive or negative square root of b.
Taking the square root of both sides, we get:
x + 1 = ±√(13/4)
Simplifying under the radical:
x + 1 = ±(√13)/2
Now we can solve for x by subtracting 1 from both sides:
x = -1 ± (√13)/2
Therefore, the solutions to the equation are:
x = -1 + (√13)/2 or x = -1 - (√13)/2
Step-by-step explanation:
Can someone help me with the 4 questions
Answers
8. The total cost of producing dress shirts and casual shirts together cannot exceed $8400 per hour. (C)
9. The number of casual shirts produced per hour must be non-negative. (F)
10. The number of dress shirts produced per hour must be non-negative. (A)
Therefore, the correct matches are:
7. B
8. C
9. F
10. A
Use the information given in the figure to find the length RU. If applicable, round your answer to the nearest whole number.
Answers
Answer:7
Step-by-step explanation:
use the Pythagoras theorem to find su (40^2-32^2) take the square root =24 use this to solve for ru. (25^2-24^2=49) square root of 49 is
1) m2 x m2
2) w3 x w2
3) 5k3 x 4k4 x k
4) A rectangle and square have the same area.
The rectangle has length 27x and width 3x.
Find the length of each side of the square.
Find the length of each side of the square.
5) Fully simplify the following expression
28x3 ÷ 4x
6) Simplify fully:
To multiply letters e.g., xy you must include the multiplication symbol. E.g., xy should be typed as x*y
fraction numerator 12 c to the power of 8 g to the power of 9 over denominator 4 c to the power of 4 g to the power of 4 end fraction
Answers
m² × m² is equal to m⁴.
w³ × w² is equal to w⁵.
5k³ × 4k⁴ × k is equal to 20k⁸.
The length of each side of the square is 9x.
A simplification of the expression 28x³ ÷ 4x is 7x².
How to calculate the area of a rectangle?In Mathematics and Geometry, the area of a rectangle can be calculated by using the following mathematical equation:
A = LB
Where:
A represent the area of a rectangle.B represent the breadth of a rectangle.L represent the length of a rectangle.By substituting the given parameters into the formula for the area of a rectangle, we have the following;
Area of rectangle = (27x) × (3x)
Area of rectangle = 81x²
Note: Area of square = Area of rectangle
Area of square = (side length)²
81x² = (side length)²
Side length = √(81x²)
Side length = 9x
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Look a tu the picture
Answers
The area of the composite figure in this problem is given as follows:
A = 87 ft².
How to obtain the area of the composite figure?When we want to obtain the area of a composite figure, we must add the areas of all the components of the figure.
The figure in this problem is composed as follows:
Rectangle of dimensions 10 ft and 6 ft.Rectangle of dimensions 10 - 4 = 6 ft and 9 - 6 = 3 ft.Right triangle of legs 10 - 4 = 6 ft and 6 - 3 = 3 ft.The areas are calculated as follows:
Rectangle: multiplication of dimensions.Right triangle: half the multiplication of the legs.Hence the area of the composite figure is given as follows:
A = 10 x 6 + 6 x 3 + 0.5 x 6 x 3
A = 87 ft².
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Study this table.
X
-3
-2
0
4
y
-2
0
4
12
Which best describes the function represented by the data in the table?
O linear with a common ratio of 2
Olinear with a common first difference of 2
O quadratic with a common ratio of 2
O quadratic with a common first difference of 2
Answers
The Function is linear with a common first difference of 2.
We have,
x y
-3 -2
-2 0
0 4
4 12
For the first set of points
m=(0-(-2))/(-2--3)
m = (0+2)/(-2+3)
m= 2/1 = 2
For the second set of points
m = (4-0)/(0-(-2))
m = 4/(0+2)
m = 4/2 = 2
For the third set of points
m = (12-4)/(4-0)
m = 8/4
m = 2
Thus, the function is linear with a common first difference of 2.
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