Answer:
100
Step-by-step explanation:
Because it is an issoceles triangle, the sides are equal,making 40 on 1 side be the same on the other side, then since its not obtuse, it should add up to 180, subtract 80 from 180, and get the answer
Point
Which of the following describes a point?
A. one dimensional
B. zero dimensional
C. three dimensional
D. two dimensional
(B) Zero-dimensional describes a point.
What is the point?A point has no length, area, or volume and is, therefore, zero-dimensional.Two-dimensional:A flat plane figure or a shape with two dimensions—length and width—are both considered two-dimensional shapes in geometry. Shapes that are two-dimensional, or 2-D, have only two faces and no thickness. The proportions of a figure can be used to categorize it.Two-dimensional shapes include the triangle, square, rectangle, pentagon, and circle.Three-dimensional:Three values are needed to locate an element in three-dimensional space, which is a geometric setting. This is how the term "dimension" is generally used. A tuple of n numbers in mathematics is equivalent to the Cartesian coordinates of a point in an n-dimensional Euclidean space.Therefore, the correct answer is (B) Zero dimensional because it cannot be one or zero dimensions, since a vector is a three-dimensional point.
Know more about two-dimensional here:
https://brainly.com/question/1211190
#SPJ2
PLEASE HELP!!!!! EXPLAIN!!!!
Sam conducted a survey to find out the favorite weekend activity of the students in his middle school. He asked 20 of his classmates. He found out that the favorite weekend activity of his middle school is playing video games because 75% of the students he surveyed liked to play video games. Explain why Sam’s sample may not be valid. Provide 2 or 3 sentences of explanation with facts to support your answer. How could Sam improve his survey to be more representative of his school?
Answer:
So, Sam only asked 20 people in his entire middle school. That is a very small fraction of the amount of kids attending that school. He cannot say that video games is 75% of the entire school's favorite weekend activity if he only asked 20 people. To get a better, more valid result, he should ask around 100+ kids.
Step-by-step explanation:
Work out the base of a square with area, A = 4cm2.
Answer:
each side of the square is 2cm
To find the base of a square with an area of 4 cm², we take the square root of the area. The base of the square is 2 cm because the square root of 4 is 2.
To work out the base of a square with an area of 4 cm², we note that a square's area is calculated by multiplying one of its sides by itself, which is represented as side length² or a². Given that a square's area is 4 cm², we set up the equation a² = 4 cm². Solving for a, we take the square root of both sides of the equation. The side length a is thus 2 cm, since the square root of 4 is 2. Therefore, the base of the square is 2 cm.
Find the area of A triangle with a base length of six units and a height of seven units
Answer:
A = 21
Step-by-step explanation:
Hello
The triangle area is= (base*height)/2, so
A = (6*7)/2
A = 42/2
A = 21
Remember that a trinagle is the area of half square =D
Best regards
What all is required when graphing a function? Check all that apply.
Slope
Y-intercept
X-intercept
The equation
Calculator
Axis of symmetry
Vertex
Answer:
A line: slope, y-intercept from the equation
A quadratic: vertex or axis of symmetry from the equation
Step-by-step explanation:
When graphing a line, you need the y-intercept and slope. This can be found by using the equation.
When graphing a parabola or quadratic, you need the vertex or axis of symmetry. This can also be found from the equation.
Frank and 3 of his friends ate dinner at a restaurant. The bill came to $98.75 before tax. The tax rate is 6.5% and they decided to leave 20% tip. If they share the bill equally, how much will each person pay?
Answer:
Either $41.64 per person or $42.07, depending on if they tip pre or post sales tax.
Step-by-step explanation:
b=98.75
x=6.5/100=0.065
p=20/100=0.2
If tipping on taxed subtotal:
T=[(bx+b)p+(bx+b)]/3
T=[(98.75(0.065)+98.75)(0.2)+98.75(0.065)+98.75]/3
T=42.07 per person
If tipping on untaxed subtotal:
T=(bx+bp+b)/3
T=(98.75(0.065)+98.75(0.2)+98.75)/3
T=41.64 per person
Angelo bought apples and bananas at the fruit salad. He bought 20 pieces of fruit and spent $11.50. Apples cost $0.50 and bananas cost $0.75 each. Write a system of equations to model the problem. (Hint: One equation will represent the number of pieces of fruit. A second equation will represent the money spent on the fruit.)
Since y=6, we can plug it in the second equation so it would be x+6=20 which means x=14, you can comment if anything confuses you
Find the volume of a sphere with a surface area of 3600pi in squared.
Answer:
36000pi
Step-by-step explanation:
V = 4/3*pi*r^3 so we need to know r
we know surface area, which is 4pi*r^2=3600pi. so we can solve for r
r=30
so v = 4/3*pi*30^3 = 36000pi
it takes 10 workers 5 days to complete a road repair when working 2 hours a day. working at the same pax’s how many days will it take 2 people working 5 hours a day to finish it?
It takes 10 workers 5 days to complete a road repair when working 2 hours a day.
So, this becomes : [tex]2*5*10=100[/tex] man hours required to finish the work.
Given is, if 2 people work for 5 hours a day, then let the number of days to finish the road be = d
So, total man hours = [tex]2*5*d=10d[/tex]
Now, [tex]10d=100[/tex] or [tex]d=10[/tex]
Hence, it will take 10 days for 2 people working 5 hours daily, to complete the work.
It will take 10 days for 2 people working 5 hours a day to finish the road repair.
Further Explanation:From the question;
10 workers can finish road repair in 5 days working 2 hours a day
We need to find;
The number of days required to complete the road repair by 2 workers working 5 hours a day.
Assuming the number of days required to complete the work is x
Number of working hours of 10 people is 10 hours ( 2 hours a day for 5 days)
Number of working hours of 2 people is 5x hours (5 hours a day for x days)
Note that; the number of workers or people is inversely related to the number of working hours.
Therefore;
Product of number of people and working hours or work done is a constant
Thus;
10 × 10 = 2 × 5x
100 = 10 x
x = 10
Therefore;
2 workers working 5 hours a day will require 10 days to complete the road repair.
Keywords: rate of work, number of hours, number of days required to complete the job.
Learn more about;Rate of work: https://brainly.com/question/1144815Example of a similar question: https://brainly.com/question/12355798Level: Middle school
Subject: Mathematics
Topic: Rate of work
katie bikes at an average speed of 12 mph.
which speeds are the same as katies average biking speed
choose all answers that are correct
63,360 ft/h
26,400 ft/min
0.2 mi/min
0.5 mi/day
12 mph = 12 miles / 1 hour
= 12 miles / 60 minutes
= 12/60 miles/minute
=1/5 miles / minute
=0.2 miles/ minute
so ans is option c
Answer:
A and C are your answers.
Step-by-step explanation:
A because there is 5,280 ft in a mile. and if you multiply that by 12 you will get 63,360. It is also C because in 60 minutes you will travel 12 miles if you are going 0.2 miles a minute. Hope this Helps!
Which show ways to make 2,067?
2066+1-2000+67
Step-by-step explanation:
The number 2067 in words is represented as Two Thousand and Sixty-Seven. For instance, the cost of a study lamp is Rs. 2067, then you can say, “The cost of a study lamp is Rupees Two Thousand and Sixty-Seven”. 2067 is a cardinal number. It is easy to convert any number into words using a place value chart. Hence, it is essential to use a place value chart to represent numerical names. Here, we will learn how to convert 2067 into words
HELP NOW!
Katie baked 215 cookies that she wants to divide equally among her 32 classmates. How many whole cookies will each student get, and how many will be leftover?
A) 5, r5
B) 6, r10
C) 6, r23
D) 7, r0
Answer:
Step-by-step explanation:either C or
B
Find the center and radius of the circle with the equation. Please show work!
Answer:
(1, -2)Step-by-step explanation:
The equation of a circle:
[tex](x-h)^2+(y-k)^2=r^2[/tex]
(h, k) - center
r - radius
We have:
[tex]x^2-2x+y^2+4y=4\qquad\text{add}\ 1^2\ \text{and}\ 2^2\ \text{to both sides}\\\\x^2-2x+1^2+y^2-2(-2)(y)+2^2=2(1^2)(2^2)\qquad\text{use}\ (a\pm b)^2=a^2\pm2ab+b^2\\\\(x-1)^2+(y-(-2))^2=8\\\\h=1,\ k=-2\to(1,\ -2)[/tex]
which equation can be simplified to find the inverse of y=2x-7 ?
A.
[tex]x = y {}^{2} - \frac{1}{7} [/tex]
B.
[tex] \frac{1}{x} = {y}^{2} - 7[/tex]
C.
[tex]x = {y}^{2} - 7[/tex]
D.
[tex] - x = {y}^{2} - 7[/tex]
y = 2x - 7
Inverse:
x = 2y - 7
x + 7 = 2y
(x + 7)/2 = y
Answer: y = x/2 + 7/2
Answer with explanation:
The given Linear equation is:
y=2 x -7
→2 x= y +7
[tex]x=\frac{y+7}{2}[/tex]
Replacing , x by ,y and y by x to get inverse of the given function
[tex]y=\frac{x+7}{2}[/tex]
2 y = x +7→→Inverse of the function, y= 2 x -7
→None of the Option Matches with the given options.
PLEASE HELP ASAP
Use a system of equations to solve each problem.
1) At an “all you can eat” spaghetti dinner, the volunteers served 210 people and raised $935. Adult meals cost $6 and child meals cost $3.50.
a) Write an equation for the total amount of money raised from the adult and child dinners served.
b) Write an equation for the total number of adult and children dinners served.
c) Solve the system of equations to find the number of adult and number of child dinners served.
Answer:
its bStep-by-step explanation: Because
210 divided by 6= 35
and
210 divided by 3.50= 60
so the answer would be:
C) solve the system of equations to find the number of child and adult dinners served
Help Evaluate. 7•(-7+15)
Answer:
56
Step-by-step explanation:
-7+15 is 8 cause it's negative 7 you have to tecnaclly subtract 7 from 15 then you would multply it by 7
A rectangular patio is 9 yd 2ft long and 5 yd 2ft wide. What is the perimeter of the patio in yards?
A. 54 7/9
B. 15 1/3
C. 164 1/3
D. 30 2/3
Answer:
D. 30 2/3
Step-by-step explanation:
What you want to do is convert everything for feet, ill explain why later. 1 yard is 3 feet long. SO 9 x 3 = 27. 27 + 2 = 29 feet. The patio is 29 feet long.
5 x 3 = 15. 15 + 2 = 17 feet. So the patio is 29 x 17. To find the perimeter, you want to do: 29 + 29 + 17 + 17 = 92 feet. Convert it back to yards by doing 92/3. That equals 30.6667. In other words, 30 2/3. The answer is D. Hope this helps!
Answer:
D. 30 2/3Step-by-step explanation:
The problem is asking for the perimeter in yards, that means we have to transform feet to yards. Also, remember that the perimeter refers to the sum of all sides.
We know that 1 yard represent 3 feet. So:
[tex]2ft\frac{1yd}{3ft}=\frac{2}{3}yd[/tex]
That is, 2 feet represent 2/3 yards.
Now, we have to sum all sides:
[tex]2(9+\frac{2}{3})+2(5+\frac{2}{3})=18+\frac{4}{3}+10+ \frac{4}{3}=28+\frac{8}{3}=\frac{84+8}{3}=\frac{92}{3}=30\frac{2}{3}[/tex]
Therefore, the right answer is D.
angle a and angle C or protocol angles if M angle a equals 3x + 7 degrees and M angle C equals x + 53° what is the value of x
3x+7=x+53
Subtract x from both sides
2x+7=53
Subtract 7 from both sides
2x=46
X=23
Tomato paste is sold in a cylindrical can. The can has a radius of 1.5 inches and a height of 4.8 inches. What is the volume of the can?
Answer:
33.912 in
Step-by-step explanation:
find the area of the circle first by: multiplying 1.5squared X 3.14= 7.065
the multiply it by the height (4.8) = 33.912
The volume of the cylindrical can is 33.9292 cubic inches.
What is volume of a cylinder ?The volume of a cylinder is the density of the cylinder which signifies the amount of material it can carry or how much amount of any material can be immersed in it. The volume is given by the formula -
V = π * [tex]r^{2}[/tex] * h
where V = volume of cylinder, r = radius and h = vertical height
How to calculate the volume of the given cylinder ?It is said that the cylindrical can has a radius of 1.5 inches and a height of 4.8 inches.
Thus we have r = 1.5 inches and h = 4.8 inches .
⇒ Volume (V) = π * 1.5 * 1.5 * 4.8 cubic inches
∴ V = 33.9292 cubic inches .
Therefore, the volume of the cylindrical can is 33.9292 cubic inches.
To learn more about volume of cylinder, refer -
https://brainly.com/question/6204273
#SPJ2
What is the experimental probability that the next customer buys a red notebook 150 pages.
red green blue yellow
100 pg-55 37 26 12
150 pg-60 40 57 27
200 pg-23 19 21 19
Answer:
5/33
Step-by-step explanation:
The table with proper formatting is attached in the image below.
We have to calculate the experimental probability that the next customer buys a red notebook with 150 pages.
Total number of customers in the experiment = Sum of all the values in the given table = 396
Number of customers who bought red notebook with 150 pages = 60
Experimental probability = [tex]\frac{\text{Number of favorable outcomes}}{\text{Number of total outcomes}}[/tex]
Number of favorable outcomes in the experiment were 60 and the total outcomes in the experiment were 396.
Therefore, the probability that next student buys a red notebook with 150 pages will be 60/396 = 5/33
The experimental probability that the next customer buys a red notebook with 150 pages is approximately 0.326 or about 32.6%, calculated by dividing 60 red 150-page notebooks sold by the total 184 notebooks sold of that size.
The student is asking about the experimental probability that the next customer will buy a red notebook with 150 pages. To determine this probability, one must look at past data to find the frequency with which customers have purchased red notebooks of 150 pages and divide this by the total number of notebook purchases of all colors with 150 pages.
Based on the data provided:
Number of red 150-page notebooks sold: 60Total number of 150-page notebooks sold: 60 (red) + 40 (green) + 57 (blue) + 27 (yellow) = 184The experimental probability is therefore calculated as follows:
P(red 150-page notebook) = Number of red 150-page notebooks sold / Total number of 150-page notebooks sold
P(red 150-page notebook) = 60 / 184
P(red 150-page notebook) = 0.326 or about 32.6%
19y-15y=20 whats the answer to y
I think the answer would be 5
if p = the game system's original price in dollars, which algebraic expression represents the reduced price?
A. 99 + p
B. P - 99
c. 99 - p
d. 99p
Answer: The answer is B. p-99
Step-by-step explanation: The price goes first and then since it’s reducing you put minus 99 since it’s decreasing the price of the game system. Hope this was helpful y’all have a blessed day
Evaluate C(7, 3). 4 35 70
Answer:
option B
35
Step-by-step explanation:
Combinations are a way to calculate the total outcomes of an event where order of the outcomes does not matter.
Formula to calculate combination
nCr = n! / r! * (n - r)!
We are given C(7,3)
here n = 7
r = 3
So plug values in the formula7C3 = 7! / 3! * (7 - 3)!
= (7x6x5x4x3x2) / (3x2)(4x3x2)
= (7x6x5) / (3x2)
= 210 / 6
= 35
Final answer:
The value of C(7, 3), which is the number of combinations of 7 items taken 3 at a time, is 35. The calculation uses the combinations formula C(n, k) = n! / (k! * (n - k)!), simplifying the factorials and the result is determined.
Explanation:
To evaluate C(7, 3), we need to calculate the number of combinations of 7 items taken 3 at a time. The formula for a combination is given as:
C(n, k) = n! / (k! * (n - k)!)
Here, n represents the total number of items and k represents the number of items to choose. Let's plug in the values to calculate this:
C(7, 3) =[tex]7! / (3! * (7 - 3)!) = 7! / (3! * 4!)[/tex] = (7 x 6 x 5 x 4 x 3 x 2 x 1) / ((3 x 2 x 1) * (4 x 3 x 2 x 1))
After canceling the matching factorial terms, we get:
C(7, 3) = (7 x 6 x 5) / (3 x 2 x 1) = 210 / 6 = 35
Therefore, the value of C(7, 3) is 35.
The equation h=-16t^2 , HELP! ID APPRECIATE IT!
Answer:
37.52 feet
Step-by-step explanation:
Given in the question the equation
h = -16t² + 47t + 3
where h is height in feet
t is time in minutes
a = -16
b = 47
c = 3
To find the maximum height of the football
If a, the coefficient of the x² term, is positive, then the parabola opens upward. If a is negative, then the parabola opens downward. In this case it is -16 which is negative so it open downward.The value of -b/2a tells you the x value of the vertex of the curve at which it is maximumPlug this value in the equation to find h, maximum height.t = -b / 2a
= -47 / 2(-16)
= 1.47 sec
h = -16(1.47)² + 47(1.47) + 3
= 37.52 feet
What is the additive inverse of the polynomial? -6x^3+4x^2-4x
Answer:
The additive inverse is equal to [tex]6x^{3}-4x^{2}+4x[/tex]
Step-by-step explanation:
we know that
Two polynomials area additive inverses if they are opposites of each other
we have
[tex]-6x^{3}+4x^{2}-4x[/tex]
To find the additive inverse multiply the polynomial by -1
[tex]-1*(-6x^{3}+4x^{2}-4x)=6x^{3}-4x^{2}+4x[/tex]
Simplify the expression. (X^3)^-5
➷ When exponents are separated with parenthesis, multiply them together:
3 x -5 = -15
The simplified expression would be X^-15
✽➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
↬ ʜᴀɴɴᴀʜ ♡
Answer: x^15
have a great day
Factor & Finding Zeros
x^{2} -x-6=0
Answer:
x = 3, -2
Step-by-step explanation:
To help us factor, we can split the middle term up into the sum of the terms -3x and 2x:
[tex]x^2+(-3x)+2x-6=0[/tex]
From there, we can factor out an x from the first two term and a 2 from the last two to obtain the equation
[tex]x(x-3)+2(x-3)=0[/tex]
Factoring out an (x - 3) from each term gives us the equation
[tex](x-3)(x+2)=0[/tex]
At this point, we can divide by either x - 3 or x + 2 to obtain the two equations
[tex]x-3=0[/tex] and [tex]x+2=0[/tex]
Solving both for x gives us the solutions x = 3 and x = -2. We can verify these by substituting them back into the original equation:
[tex]3^2-3-6=0\\9-3-6=0\\6-6=0\\0=0[/tex]
[tex](-2)^2-(-2)-6 = 0\\4+2-6=0\\6-6=0\\0=0[/tex]
Which statement must be true about the diagram?
Point K is a midpoint of .
mJKN = mJKM
Ray KM is an angle bisector of NKL.
JK = KL
Answer:
Find out the true statement of the diagram.
To proof
The statement true about the diagram is
Ray KM is an angle bisector of ∠NKL
REASON
KM ia an angle bisector of ∠NKL.
angle bisector is a line which divide the an angle in two equal parts.
As shown in the diagram
KM divided the angle ∠ NKL
and also in the diagram
∠LKM =61°
∠MKN = 61°
that means KM divided ∠NKL in two equal angle
thus
Ray KM is an angle bisector of ∠NKL
Hence proved
Read more on Brainly.com - https://brainly.com/question/8402849#readmore
Step-by-step explanation:
Answer:
Ray KM is an angle bisector of NKL.
Step-by-step explanation:
edge 2022
The basic unit of capacity in SI is the
A)meter.
B)liter.
C)kilogram.
Answer: a) meter
Step-by-step explanation:
Answer:
meter
Step-by-step explanation:
The set shows the absolute values of a set of rational numbers in increasing order.
{0.4, 1, 2
1
2
, 4, 5.3, 7, 9.8}
Can you determine the order of the rational numbers themselves? Explain why.
A) Yes, it is possible to determine the order of the rational numbers because we know the size of the rational numbers.
B) No, it is not possible to determine the order of the rational numbers because we only know the signs of the rational numbers.
C) No, it is not possible to determine the order of the rational numbers because we do not know the signs of the rational numbers.
D) Yes, it is possible to determine the order of the rational numbers because we know that all of the rational numbers are positive.
The correct statement regarding whether we can determine the order of the rational numbers:
C) No, it is not possible to determine the order of the rational numbers because we do not know the signs of the rational numbers.
What is the absolute value of a number?The absolute value of a number is the number without the signal, for example:
|-2| = |2| = 2.
In this problem, we are only given the absolute value of the numbers, we do not know the signs of the numbers, hence we cannot order them.
More can be learned about the absolute value of a number at https://brainly.com/question/24368848
#SPJ1
No, we cannot determine the order of the set of rational numbers because we only know their absolute values, not their signs. The answer is option C.
The question is asking whether we can determine the order of a set of rational numbers given their absolute values. The answer to this is option C: No, it is not possible to determine the order of the rational numbers because we do not know the signs of the rational numbers. Knowing only the absolute values does not give us any information about whether the original rational numbers were positive or negative. Absolute value only indicates the magnitude of a number, not its sign, therefore without this information, the original sequence of the rational numbers cannot be determined.