Answer:
She is wrong. She needs 140 square feet.
Explanation:
(8×10)+(4×15) = 140
the mail slot is 24cm in width and 7cm in length what is the maximum width of the mail slot
Answer:
24 cm
Step-by-step explanation:
it says that the mail slot is 24 cm in width
Answer:
Step-by-step explanation:
14cm
find the standard matrix for the linear transformation t. t(x, y) = (x 6y, x − 4y)
To find the standard matrix for the linear transformation T: T(x, y) = (x + 6y, x - 4y), we need to determine the image of the standard basis vectors (1, 0) and (0, 1) under T.
Let's start with the standard basis vector (1, 0):
T(1, 0) = (1 + 6(0), 1 - 4(0)) = (1, 1)
The image of (1, 0) is (1, 1). Therefore, the first column of the standard matrix will be (1, 1).
Next, let's consider the standard basis vector (0, 1):
T(0, 1) = (0 + 6(1), 0 - 4(1)) = (6, -4)
The image of (0, 1) is (6, -4). Therefore, the second column of the standard matrix will be (6, -4).
Putting it all together, the standard matrix for the linear transformation T is:
| 1 6 |
| 1 -4 |
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Solve 6.1−0.3≥c+1.
please help me
Answer:
c≤ 24/25
Step-by-step explanation:
"0.3" was replaced by "(3/10)". 2 more similar replacement(s). Simplify 3/10
61 3
(—— - ——) - (c + 1) ≥ 0 then simplify 61/10
10 10
3.1 Adding fractions which have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
61 - (3) 29
———————— = ——
10 5
29
—— - (c + 1) ≥ 0
5
4.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using 5 as the denominator :
c + 1 (c + 1) • 5
c + 1 = ————— = ———————————
1 5
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Rewrite the whole as a fraction using 5 as the denominator :
c + 1 (c + 1) • 5
c + 1 = ————— = ———————————
1 5
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
29 - ((c+1) • 5) 24 - 5c
———————————————— = ———————
5 5
24 - 5c
——————— ≥ 0
5
Multiply both sides by 5
5.2 Multiply both sides by (-1)
Flip the inequality sign since you are multiplying by a negative number
5c-24 ≤ 0
5.3 Divide both sides by 5
c-(24/5) ≤ 0
5.4 Add 24/5 to both sides
c ≤ 24/5
Answer:
wehj
Step-by-step explanation:
HELP PLEASE !!!!
create diagrams to represent the possible causes for common tangents between two circles. your diagram can be created using multimedia sources or drawn by hand. they should not be copied and pasted from a website. explain why your diagrams satisfy the given criteria.
no common tangents
diagram
justification
Answer:
justification: A tangent is defined as "a straight line that touches a curve or curved surface at a point, but if extended does not cross it at that point." As you can see in the diagram, the line does not extend, which means there are two common tangents. (this is actually a diagram for two common tangents im pretty sure. wouldnt make since otherwise)
The table shows the heights of 40 students in a class.
Calculate the mean for the students height
Answer:129.3
Step-by-step explanation:
The mean of height of 40 students in a class is, 129.3 cm
What is mean?In one of the branches of mathematics called statistics, We use one term known as mean; it generally tells us what is the central tendency of the data set.
In simple words, mean is an average of all the dataset.
formula;
Mean = Sum of all the dataset/Total number of dataset
Given that,
The table of heights of 40 student in a class,
The table shows the heights of 40 students in a class.
Height (h) in cm Frequency(f) Midpoint(m) mf
120 < t < 124 7 122 854
124 <t< 128 8 126 1008
128 <t< 132 13 130 1690
132 < t < 136 9 134 1206
136 < t < 140 3 138 414
40 5172
Mean = mf / m
= 5172/40
= 129.3
Hence, the mean height is 129.3 cm
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Which best describes the circumcenter of a triangle?
A. The point where the three medians of the triangle intersect
B.The point where the three angle bisectors of the triangle intersect
C.The point where the perpendicular bisectors of the three sides of the triangle intersect
D.The point where the three altitudes of the triangle intersect
Answer:
C. The point where the perpendicular bisectors of the three sides of the triangle intersect.
Step-by-step explanation:
A number of centers of a triangle are defined. The circumcenter is the center of the circumscribing circle. The incenter is the center of an inscribed circle. The centroid is the center of balance of a triangle of uniform mass density.
Center definitionsThe centers defined by descriptions A through D are ...
A. centroid -- coincident point of medians
B. incenter -- coincident point of angle bisectors
C. circumcenter -- coincident point of side perpendicular bisectors
D. orthocenter -- coincident point of altitudes
what is the numerical answer for 16 3/4?
A researcher describes the characteristics of three groups of subjects in a study. What statistics should the researcher use to analyze this demographic data
These statistical measures help the researcher summarize, describe, and understand the data collected from the study participants.
As the researcher is describing the characteristics of the subjects, the appropriate statistical analysis would be descriptive statistics.
Descriptive statistics is a method that summarizes and describes the data collected in a study. It includes measures such as mean, median, mode, standard deviation, range, and frequency distribution.
These measures can provide a clear picture of the demographic data of the three groups of subjects and help in drawing meaningful conclusions.
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What is 4731 divided by 65 ?
Answer:
Rounded to 73
Step-by-step explanation:
The exact number does not end so rounded to the closest whole number is 73
Answer:
72.78 if you want to round to the nearest hundrendths place or if you want the remainder, it would be 72 R51
The perimeter of an equilateral triangle is 24 cm. Find the length of each sides
Answer:
8cm
Step-by-step explanation:
An equilateral triangle means that all the sides are equal (the same length). A triangle has 3 sides so all we have to do is:
24/3 = 8
Each side is 8cm long
Answer:
Length of each sides = 8 cm
Step-by-step explanation:
Given the perimeter of an equilateral triangle, 24 cm:
Equilateral triangles have three congruent sides.
Hence, to find the length of an equilateral triangle, simply divide the perimeter by 3 (since an equilateral triangle has three equal sides).
Perimeter of an equilateral triangle = 24 cm
Side = 24 cm ÷ 3 = 8 cm
Therefore, the length of each side is 8 cm.
A student is asked to find the vertex of a parabola whose equation is as follows: y = 3 * (x + 4) ^ 2 - 2 The student concludes the vertex is at (4, - 2) . the student correct? If not, what do you think the student did wrong? Explain with as much relevant mathematical detail as possible. Please use at least 3 sentences total in your answer
Step-by-step explanation:
the general equation of a parabola is
y = a(x – h)² + k.
(h, k) is the vertex of the parabola.
comparing it to
y = 3(x + 4)² - 2
we see that (h, k) = (-4, -2).
the student made a sign mistake. it is "- h" in the squared factor. so, "+4" indicates "-4" as "h".
but the student simply used "+4".
If using the method of completing the square to solve the quadratic equation
x^2+17x−22=0, which number would have to be added to "complete the square"?
17/2 is the number which we added to "complete the square"
The given quadratic equation is x²+17x−22=0
x²+17x-22=0
To complete the square we have to add half of 17 square and subtract in the equation
x²+17x +(17/2)²-22-(17/2)²=0
We know that (a+b)² = a²+b²+2ab
(x+17/2)² -22-289/4=0
(x+17/2)² -88-289/4
(x+17/2)² -377/4 = 0
Hence, 17/2 is the number which we added to "complete the square"
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Please help.
Graph RST with vertices R(4,1), S(7,3), and T(6, 4) and its image after the glide reflection.
Translation: (x,y) →(x, y-1)
Reflection: in the y -axis.
Answer:
Points R(4,1) S(7,3) T(6,4) after translation
R(4-3, 1) S(7-3, 3) T(6-3, 4)
R'(1, 1) S'(4, 3) T'(3, 4)
Points R'(1, 1) S'(4, 3) T'(3, 4) after reflection
R''(1, -3) S''(4, -5) T''(3, -6)
Step-by-step explanation:
Answer:Step-by-step explanation:Points R(4,1) S(7,3) T(6,4) after translation R(4-3, 1) S(7-3, 3) T(6-3, 4) R'(1, 1) S'(4, 3) T'(3, 4) Points R'(1, 1) ...
What is equivalent to 0.05*0.8
Notice that:
\(0.05\times0.8=\frac{5}{100}\times\frac{8}{10}=\frac{40}{1000}.\)Simplifying the above fraction and putting it in decimal form, we get:
\(\frac{4}{100}=0.04.\)Answer: \(0.04\)The diameter of an above ground circular swimming pool is 30 ft.
What is the CIRCUMFERENCE of the pool?
Use 3.14 for π.
The formula to calculate the circumference of a circle is given by \(\displaystyle\sf C=2\pi r\), where \(\displaystyle\sf C\) represents the circumference and \(\displaystyle\sf r\) is the radius of the circle.
Given that the diameter of the above ground circular swimming pool is 30 ft, we can find the radius by dividing the diameter by 2. So, the radius \(\displaystyle\sf r\) would be \(\displaystyle\sf \frac{30}{2}=15\) ft.
Now, substituting the value of \(\displaystyle\sf r\) into the formula, we have:
\(\displaystyle\sf C=2\pi ( 15)\)
Using \(\displaystyle\sf \pi =3.14\), we can calculate the circumference:
\(\displaystyle\sf C=2( 3.14)( 15)\)
\(\displaystyle\sf C=2( 3.14)( 15)\)
\(\displaystyle\sf C=94.2\) ft
Therefore, the circumference of the pool is 94.2 ft.
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♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
i’m not able to solve this question
mention about angles of a triangle
let the universal set be the letters a through j: u = {a, b, ..., i, j}. let a = {e, g, h, i}, b = {a, b, g, h}, and c = {a, e, h, j} list the elemen of the set A B C
The universal set be the letters a through j: u = {a, b, i, j}. the elements of sets A, B, and C are A = {e, g, h, i} B = {a, b, g, h} C = {a, e, h, j}.
The given list the elements of sets A, B, and C as follows:
A = {e, g, h, i}
B = {a, b, g, h}
C = {a, e, h, j}
Each of these sets is a subset of the universal set U, which contains the letters a through j. Therefore, any element in sets A, B, or C must also be one of these letters.
To summarize:
A = {e, g, h, i}
B = {a, b, g, h}
C = {a, e, h, j}
So the elements of sets A, B, and C are:
A = {e, g, h, i}
B = {a, b, g, h}
C = {a, e, h, j}
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A line has a slope of - Which ordered pairs could be points on a parallel line? Select two options.
(-8, 8) and (2, 2)
(-5, -1) and (0, 2)
(-3, 6) and (6,-9)
(-2, 1) and (3,-2)
(0, 2) and (5, 5)
The ordered pairs that could be points on a parallel line are:
(-8, 8) and (2, 2)
(-2, 1) and (3, -2)
Which ordered pairs could be points on a parallel line?Parallel lines have the same slope. Thus, we have to find ordered pairs with a slope of -3/5.
We have:
slope of the line is -3/5.
Thus, m = -3/5
Formula for slope between two coordinates is;
m = (y₂ - y₁)/(x₂ - x₁)
A) At (–8, 8) and (2, 2);
m = (2 - 8)/(2 - (-8))
m = -6/10
m = -3/5
B) At (–5, –1) and (0, 2);
m = (2 - (-1))/(0 - (-5))
m = 3/5
C) At (–3, 6) and (6, –9);
m = (-9 - 6)/(6 - (-3))
m = -15/9
m = -5/3
D) At (–2, 1) and (3, –2);
m = (-2 - 1)/(3 - (-2))
m = -3/5
E) At (0, 2) and (5, 5);
m = (5 - 2)/(5 - 0)
m = 3/5
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Please help asap!!!!
Below is a system of equations. Which method would you use to solve this? Why? Solve the problem, explaining each step.
x = y – 3
2x + y = 12
Answer:
(using substitution to solve the problem)
x=y-3
2x+y=12
2(y-3)+y=12
2y-6+y=12
3y=18
y=6
y=6
x=6-3
= (3, 6)
Step-by-step explanation:
using substitution, substitute the x in the second equation to y-3, to find the value of y. after that distribute the 2 into the parenthesis and collect like terms. once you simplify, you have the value of y, so substitute the value of y into the first equation to find x. once you have both values put them in the ordered pair form and you're done.
i hope this helps :)
A school is building a rectangular stage for its chorus. The stage must have a width of 8 feet. The area of the stage must be more than 96 square feet. (The stage must hold all the singers.) Write an inequality that describes the possible lengths (in feet) of the stage. Use l for the length of the rectangular stage.
Answer:
Step-by-step explanation:
Answer: Length ≥ 6 feet
Step-by-step explanation:
The area of a rectangle= length × width
In this case, the width is 4 feet and the area of the stage must be at most 24 square feet.
The inequality that describes the possible lengths (in feet) of the stage would be:
Length × Width ≥ 24
Length × 4 ≥ 24
Length ≥ 24/4
Length ≥ 6
Therefore, the length must be at most 6 feet.
what is the distance along the unit circle between any two successive 8th roots of 1?
a. π/8
b. π/6
c. π/4
d. π/2
The distance along the unit circle between any two successive 8th roots of 1 is c) π/4.
To find the distance along the unit circle between any two successive 8th roots of 1, we can consider the concept of angular displacement.
Each 8th root of 1 represents a point on the unit circle that is evenly spaced by an angle of 2π/8 = π/4 radians.
Starting from the point corresponding to 1 on the unit circle, we can move π/4 radians to reach the first 8th root of 1. Moving π/4 radians further will bring us to the second 8th root of 1, and so on.
Since we are moving by π/4 radians for each successive 8th root of 1, the distance between any two successive 8th roots of 1 is π/4 radians.
Therefore, the correct answer is option c. π/4.
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help me please !!! correct answer gets brainliest
Answer: 1/10 is literally only one out of 10. the fraction to a decimal is 0.1 so, 3 x 0.1 is 0.3 and 3 x 10 is 30.
0.3 is less than 30.
Step-by-step explanation:
The circle graph shows how a family spends its annual Income. If $25,200 is used for Food, Savings, and Insurance combined, what is the total annual income?
housing 21%
food 18%
clothing 17%
auto 14%
entertaining 12%
insurance 11%
savings 7%
Answer:41,328
Step-by-step explanation:
18+7+11=36 36%
100-36=64 64%
25,200 x 164%=41,328
which conditional has a true converse? Select all that apply
А If a quadrilateral is a square, then it has four congruent sides,
B
If a polygon is a triangle, then it has 3 sides.
С.
If a quadrlateral is a rectangle, then it has two pairs of parallel sides,
D
If a number is even, then it is divisible by 2
E
If a number is prime, then the only factors of the number are itself and 1.
What is the answer U=a-k, for a
Hey there!☺
\(Answer:\boxed{a=k+u}\)
\(Explanation:\)
Solve for a: \(u=a-k\)
Let's start by flipping the equation.
\(a-k=u\)
Now add k to both sides.
\(a-k+k=u+k\\a=k+u\)
\(a=k+u\) is your final answer.
Hope this helps!
When h is one-half and j is one-third, g is 4. if g varies jointly with h and j, what is the value of g when h is 2 and j is 3?
The value of g = 144 solved by using direct proportion.
What is a direct proportion?Direct proportion or direct variation is the relation between two quantities where the ratio of the two is equal to a constant value. It is represented by the proportional symbol, ∝.
Given that,
h = \(\frac{1}{2}\) , j = \(\frac{1}{3}\), g = 4
g ∝ hj
g = khj
where k is a constant.
4 = k×\(\frac{1}{2}\)×\(\frac{1}{3}\)
k = 24
Also given that,
g = ? , h =2, j = 3
g = khj
g = 24×2×3
g = 144
Hence, The value of g = 144.
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Is the coordinates of a point are 3 and 4?
The coordinates of the point at 3/4 of the distance from A to B from A is (-3.5, 1.25)
The coordinates of point A = (-5, -4),
The coordinates of the point B = (-3, 3)
Let the point at the distance 3/4 from A to B = P
The coordinates of point 3/4 from A to B = P
At the x-coordinate, the distance from B to A is = -3-(-5) = 2 units.
At the y-coordinate, the distance from B to A is = 3-(-4) = 7 units.
Hence, the coordinates of P = (-5 + (3/4×(x-coordinate), -4 + 3/4×(y-coordinate)
P = (-5 + (3/4×(2), -4 + 3/4×(7))
P = (-3.5, 1.25)
Hence, the coordinates of the point at 3/4 of the distance from A to B from A is (-3.5, 1.25).
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The complete question is -
What are the coordinates of the point 3/4 of the way from A to B?
A) The priestess at Horus’ temple has to go up a flight of 5 steps each day.The high priest has decreed that she will ascend the steps one or two at a time. She wants to know if she can do this a different way each day for a week.Is it possible?How many ways are there of ascending the steps?
B) The grand staircase has 13 steps. The priest wants to know if he can climb this a different way each day for a year using the same rules as the priestess.
Is it possible?
How many ways are there of ascending the grand staircase?
Explain why your answer is correct.
please answer this pleaase
There are a total of 32 possible sequences because there are two alternatives for each stage. Since there are more than seven distinct ways to mount the stairs, the priestess can do so every day for a week.
How many ways are there of ascending the steps?(a) Every day, the priestess at the temple of Horus must climb a flight of five stairs, which she can do by taking one or two steps at a time. The amount of ways she can up the stairs on any given day can be represented by a binary digit, where 1 denotes a two-step ascent and 0 denotes a one-step ascent. For each of the five steps, for instance, 00101 reflects the order of her one- and two-step climbs.
How many ways are there of ascending the grand staircase?(b) The same regulations apply. The entire number of potential sequences, using the same binary digit format, is 213 = 8,192. There are therefore more than 365 possible ways to mount the grand staircase, allowing the priest to do so every day for a whole year.
In conclusion, the number of alternative binary sequences, where each digit denotes a one- or two-step climb, may be used to determine the number of ways the priestess can ascend the five-step flight of stairs and the number of ways the priest can ascend the thirteen-step grand staircase.
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How many different two-letter passwords can be formed from the letters A, B, C, D, and E if no repetition of letters is allowed?