Answers
Answer:
B. x ≤ 5
Step-by-step explanation:
This is an inequality problem. It can be solved by examining the arrow and the point it closes on. If the arrow is going left, then all values of x are going to be less than the point it closes on. If the arrow is going right, then all values of x are going to be greater than the point it closes on.
If the circle on the point the arrow is closed/shaded in, then that value will be included in the values of x, giving the inequality either a ≤ or ≥ sign depending on which way the arrow is pointing. If the circle on the point the arrow is open, then that value will not be included in the values of x. The sign will be either < or >.
---------------------------------------------------------------------------
For this problem, the arrow is going to the left of 5, which means all values of x are going to be less than 5. Because the circle is closed, that means that number 5 is included, or x can be equal to 5. If the circle was open, it wouldn't be included. So, the inequality is x ≤ 5.
hope this helps!
Related Questions
In order to select new board members, the French club held an election. 20% of the 40 members of the club voted. How many members voted?
Answers
The number of members is an illustration of proportions, and there are 200 members in the club
How to determine the members that vote?The given parameters are:
French = 20%
French = 40
Let the number of members be x.
So, we have:
20% * x= 40
Divide both sides by 20%
x = 200
Hence, there are 200 members in the club
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I can give brainliest to the best answer, please help
Answers
Answer:
KPJ= 40 degrees
Step-by-step explanation:
EPG=35
EPG=FPK because they are symmetrical
135+105=140
180-140=40
DPE=40
DPE=KPJ because they are symmetrical
KPJ=40
Here are pairs of equivalent expressions, one in standard form and the other in factored form. Find
the missing numbers.
1. x2 +
+
and (x – 9) (x - 3)
2. 22 – 9x + 20 and (x – 4) (x +
Answers
The first equation will be x²-12x+27=(x-9)(x-3). The second equation will be x²-9x+20=(x-5)(x-4).
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
1. For the first equation to be complete, we need to expand the factors, therefore, we can write,
(x-9)(x-3)
= x² - 9x - 3x + 27
=x²-12x+27
Hence, the first equation will be x²-12x+27=(x-9)(x-3).
2. For the second equation to be complete, we need to factorise the left side of the equation, therefore, we can write,
x²-9x+2
= x²-5x-4x+20
= x(x-5)-4(x-5)
=(x-5)(x-4)
Hence, the second equation will be x²-9x+20=(x-5)(x-4).
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Answer:
Step-by-step explanation:
lern it yourself
A circular railroad-crossing sign has a diameter of 30 inches.
Which measurement is closest to the area of the sign in square inches?
Answers
Diameter = 30
30/2 = 15 15 is the radius
To find area:
3.14 x 15 x 15 = 706.5
706.5 is the answer
Find the equation of the line that passes through the points (12, 9) and (2,7)
Answers
Answer:
see photo below for analysis
Step-by-step explanation:
in 1965, the population of country A was 2 714 000. in 2015 the population was 3 663 900. write the population in 2015 correct to 3 significant figures?
Answers
BEST ANSWER :
(iv) a) 3.66 × 10^6
b) 2.714 × 10^6
(iii) 35%.
by question known :
(i) a) 3663900 = 3.6639 × 10^6
= 3.66 × 10^6
{ keep three significant digit }
b) 2714000 = 2.714 × 10^6
(iii) (3663900 - 2714000) ÷ 2714000 × 100%
= 949900 = 2714000 × 100%
= 0.35 × 100%
=35%
.°. the percentage increase in the population from 1965 to 2015 is 35%
Which is a reasonable conclusion from the information presented in the bar graph? A. Germany won the fewest number of Olympic medals in the Summer Games of 2004. B. Russia won the most number of Olympic medals in the Summer Games of 2004. C. Australia won 20 Olympic medals in the Summer Games of 2004. D. Australia won more Olympic medals than the United States in the Summer Games of 2004.
Answers
It's really hard to see on the graph but the answer should be A. Germany won the fewest number of Olympic medals in the Summer Games of 2004.
If you read the other options, it doesn't make sense at all so through the process of elimination, A is the answer.
Answer:
A.Germany won the fewest number of Olympic medals in the Summer Games of 2004.
Step-by-step explanation:
because i took the quiz
PLS HELP WILL GIVE BRAINLYEST!!! WHOEVER ANSWERS IN THE NEXT 2 HRS WILL GET 100 PTS.
(08.05;08.06 HC)
The box plot below shows the total amount of time, in minutes, the students of a class surf the Internet every day:
A box plot is shown. The left-most point on the plot is 20 and the right-most point is 95. The box is labeled 37.5 on the left edge and 60 on the right edge. A vertical line is drawn inside the rectangle at the point 50.
Part A: List two pieces of information that are provided by the graph and one piece of information that is not provided by the graph. (4 points)
Part B: Calculate the interquartile range of the data, and explain in a sentence or two what it represents. (4 points)
Part C: Explain what affect, if any, there will be if an outlier is present. (2 points)
Answers
Answer:
it shows that the least amount is 37.5 minutes it shows the most amount of time is 60 minutes one thing it does not show is how many students where in the class
Step-by-step explanation:
Answer:
this is for A Part A: it shows that the least amount is 37.5 minutes
it shows the most amount of time is 60 minutes
one thing it does not show is how many students where in the class
Step-by-step explanation:
Well, you need to know the aton mic weight of Platinum (Pt) and the number of atoms per mole. The answer to the former is 195.084 g/mole and the latter is 6.023 * 10^23 atoms/mole. Then, multiply everything as shown below:
Number of atoms = (1 g) * (1/195.084 g/mole) * 6.023 * 10^23 atoms/mole
Number of atoms = 3.087 * 10^21 atoms
Note, I’ve included units on everything and you can see that they all cancel except for atoms. Dragging the units along can be a pain but it is a great way to check that they way the numbers are being combined is
The perimeter of a rectangular corn field is 440 meters. The ratio
of its length to its width is 7:4. What is the length and width of
the field?
Answers
Answer:
Length: 140 meters
width: 80 meters
Step-by-step explanation:
perimeter of a rectangle is 2*(lw)
440/(14+8)=20
Length: 20*7=140 meters
width: 20*4=80 meters
what is the opposite of -26? how many units away from 0 is its location on a horizontal number line,and in which direction ?
Answers
Help me with this please giving brainlist
Answers
Answer: 6 pounds is the mode
Step-by-step explanation: 6 is the most common number
Joe has a cube shaped box that needs to be filled with packaging material If the length of one side 2 feet, then what is the volume of the box?
Answers
explanation:
given: cubic box of length=2 ft
to find: volume
solution: a= 2 ft
volume= a^3
=2^3
=8 ft^3
Question 8 of 25
A new auditorium is being built for a college. The balcony has 400 seats. The
floor has 50 rows with x seats in each row. The number of people in the
auditorium must be under 1300 to meet safety regulations.
What is the solution of this inequality, and what is its, meaning?
O A. 50x< 1300; The new auditorium must have fewer than 26 seats in
each row on the floor to meet fire safety regulations.
20
21
22
23
24
25
26
27
28
29
30
Answers
Inequalities help us to compare two unequal expressions. The number of seats in each row on the floor must be less than 18.
What are inequalities?Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed. It is mostly denoted by the symbol <, >, ≤, and ≥.
Given the balcony has 400 seats, and the floor has 50 rows with each row having x number of seats. Therefore, the number of seats on the floor will be,
Number of seats on floor = 50 × x = 50x
Since the total number of seats in the auditorium should be less than 1300, therefore, the inequality can be written as,
Number of seats in balcony + Number of seats on floor < 1300
400 + 50x < 1300
50x < 1300-400
50x < 900
x < 18
Hence, the number of seats in each row on the floor must be less than 18.
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If a polynomial has three terms, x2 12x 36, which factoring method can be considered? perfect-square trinomial difference of squares sum of cubes difference of cubes
Answers
The best factoring method that can be considered for the polynomial is (a) perfect-square trinomial
How to determine the factoring method?The polynomial is given as:
x² + 12x + 36
The above polynomial has three terms,
This means that the sum or the difference of cubes and squares cannot be applied (because it has more than two terms)
Hence, the best factoring method that can be considered for the polynomial is (a) perfect-square trinomial
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Answer:
A
Step-by-step explanation:
Got it right on Edge 1922
Feng is starting a running plan to train for a race. In the first week of his running plan, Feng will run 15 miles. The plan calls for Feng to increase his weekly milage by 1.5 miles every week. If Feng sticks to the plan, how many miles would he be expected to run during his 15th week of the training plan?
Answers
Answer:
37.5 miles
Step-by-step explanation:
y = 1.5x + 15
1.5 * 15 = 22.5
22.5 + 15 = 37.5
In an archery competition, each archer shoots 3 arrows at a target. An archer’s score is calculated by measuring each arrow’s distance from the center of the target and finding the mean. One archer has a mean distance of 1.6 inches and a MAD of 1.3 inches in the first round. In the second round, this same archer’s arrows are farther from the center but more consistent. What values for the mean and MAD would fit this description for the second round?
Answers
Answer:
Mean: 3 Mad: 1/3
Step-by-step explanation:
First we need to find out the numbers, so to get a mean of 3 we have to get to 9 ebcause there are 3 arrows.
We have to make sure that the arrows are not too close to the centerYou can have decimals2nd: Once you find the numbers which are 2.5, 3, and 3.5 you add them together and divide it by 3 to get 3 the mean
3rd: Find the MAD but adding .5 and .5 to get 1 then divide it by 3 and you get 1/3 as the MAD.
Hope this helps!
The archer's mean distance in the second round is 1.6 inches and the MAD is 0.83 inches.
What is a mean?It is the average value of the set given.
It is calculated as:
Mean = Sum of all the values of the set given / Number of values in the set
We have,
Let's first recall that MAD stands for Mean Absolute Deviation, which is a measure of the variability of a set of data.
The MAD is calculated by taking the absolute value of the difference between each data point and the mean, and then finding the average of those absolute values.
Let the mean distance of the archer's arrows in the second round be m, and let the MAD be d.
In the first round, the archer's mean distance was 1.6 inches and the MAD was 1.3 inches.
This means that the absolute difference between each arrow's distance from the mean was, on average, 1.3 inches.
In the second round, the archer's arrows were farther from the center, so we expect the mean distance to be larger than 1.6 inches.
However, the arrows were more consistent, so we expect the MAD to be smaller than 1.3 inches.
To find the new value for the mean distance, we can use the fact that the sum of the distances from the mean is equal to zero. This means that:
3(m - mean) = 0
Solving for m, we get:
m = mean
Therefore, the mean distance in the second round is equal to the mean distance in the first round, which is 1.6 inches.
To find the new value for the MAD, we can use the fact that the variance (the square of the standard deviation) is equal to the average of the squared differences between each data point and the mean.
This means that:
Var = (1/3)(d²)
Since the arrows in the second round are more consistent, we expect the variance to be smaller than in the first round.
Therefore, we can set the new variance to be some fraction f of the old variance, and solve for the new value of d:
f(Var) = (1/3)(d²)
d² = 3f(Var)
d = √(3f(Var))
We don't know the exact value of f, but we do know that it is less than 1 since the variance is decreasing.
Let's assume that f = 0.5 for simplicity.
Using this value of f and the given values for the mean and MAD in the first round, we get:
Var = (1/3)(1.3³) = 0.56
d = sqrt(30.50.56) = 0.83
Therefore,
The archer's mean distance in the second round is 1.6 inches and the MAD is 0.83 inches.
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What is the length of the equal sides of an isosceles right-angle triangle, with a hypotenuse of 15cm?
Answers
Answer:
8.66
Step-by-step explanation:
15/sqrt(3) = 8.66 (to nearest hundreth)
Find the surface area of a square pyramid with side length 5 Fr and slant height 5 ft.
Answers
Answer:
75 ft²
Step-by-step explanation:
Surface Area :
Area (4 triangles) + Area (base)4 x 1/2 x 5 x 5 + 5 x 550 + 2575 ft²Given:
All sides are 5 feet in length.
To find:
The surface area of:
Square (base)4 Triangle SidesStep-By-Step-Solution:
Step 1
Find the surface area of the square (base)
Formula:
[tex]SA=L*W[/tex]
Find:
[tex]SA=5*5\\=25[/tex]
The surface area of the square (base) is 25ft²
Step 2
Find the surface area of the 4 triangles
We know that to find the surface area of 1 triangle, we do this:
[tex]SA=\frac{1}2} *B*H[/tex]
But to find the surface area of 4 triangle, we will have to do this:
[tex]SA=2*B*H[/tex]
Find:
[tex]SA=2*5*5\\=2*25\\=50[/tex]
The surface area of the 4 triangles in the sides are 50ft²
Step 3
Find the total surface area (by adding all SA's found before)
Just add! EASY!!!
25+50=75ft²
The total Surface Area of the Square Pyramid is 75ft²Maisy got a score of 80% correct on an quiz. There were 30 questions on the quiz. How many questions did Maisy get correct?
Answers
Answer:
24 Questions answered correctly
Step-by-step explanation:
So as we know, 30/x = 100/80
100/80 = 1.25
Now we have 30/x = 1.25
Multiply both sides of the equation by x - (30/x)x = (1.25)x
Now we have 30 = 1.25x
Divide both sides by 1.25 - 30/1.25 = 1.25x/1.25
24 = xThe radius of a circle is 7 millimeters. What is the circle's circumference?
Answers
Answer:
The circumference of a circle with a radius of 7 millimeters is 44.0 (rounded to the nearest tenth).
Step-by-step explanation:
The circumference of a circle is the distance around the outside of the circle. The circumference along with the diameter and radius are the 3 major aspects of a circle.
The circumference of a circle is found using this formula:
[tex]c=2\pi *r[/tex] - or - [tex]c=\pi *d[/tex]For this problem, the radius has been given, so to solve, let's use the formula: [tex]c=2\pi *r[/tex].
It has been given that the radius is equal to 7 and the unit of measure is millimeters.
So to start, let's plug the radius in the formula.
It should look like this: [tex]C=2\pi *7[/tex]
After plugging the radius into the formula, we now have to multiply [tex]2\pi[/tex] by [tex]7[/tex]; resulting in: ≈ [tex]43.9823[/tex] (estimate)
Now rounding to the nearest tenth:
≈ [tex]44.0[/tex]
A professional painter knows that it takes 0.29 ounces of the paint he prefers to cover 1 square foot of wall. If he calculates that he will need 92.8 ounces of paint to cover an 8-foot wall, then how wide is the wall he is planning to paint?
Answers
Answer:
The wall is 40 feet wide.
Step-by-step explanation:
92.8 / 0.29 = 320 square feet
320 / 8 = 40 feet
The tire's diameter is 1 meter, and it made 8000 rotations during the trip. How far did the bus travel?
Answers
The circumference of the tire = pi x diameter = 3.14 x 1 = 3.14 meters
every rotation the tire travels 3.14 meters
3.14 x 8000 = 25120 meters
1 kilometer = 1000 meters
25,120 meters /100 = 25.12 kilometers
answer: 25.12 kilometers
Find if line M is a tangent line to circle B.
Answers
Answer:
No
Step-by-step explanation:
The tangent line must form a right angle with the radius
No, 4 5 6 isn't a right triangle
Answer:
Line m is not a tangent line to circle B.
Step-by-step explanation:
The tangent line to a circle is always perpendicular to the radius.
The line segment measuring 4 units is the radius of Circle B, therefore if line m is a tangent line to the circle, the angle between this segment and the segment measuring 5 units will be a right angle (90°).
We can use Pythagoras' Theorem to check if the triangle is a right triangle.
Pythagoras’ Theorem: [tex]a^2+b^2=c^2[/tex]
(where a and b are the legs, and c is the hypotenuse, of a right triangle)
Therefore, the legs are the line segments measuring 4 and 5, and the hypotenuse is the line segment measuring 6 units.
Substituting the values for the legs into the formula:
[tex]\implies 4^2+5^2=c^2[/tex]
[tex]\implies 16+25=c^2[/tex]
[tex]\implies 41=c^2[/tex]
[tex]\implies c=\sqrt{41}[/tex]
Therefore, as the hypotenuse of the triangle is not √41, the triangle is not a right triangle, and therefore line m is not a tangent line to circle B.
Hi I really need help on 4 pls help
Answers
Answer:
a. Draw a column for each ticket sold. (For 0-9, draw a bar upto 2. For 10-19, draw a bar upto 4. For 20-29, draw a bar upto 3. And for 30-39, draw a bar upto 1.
b. 10 students sold tickets
c. 40% of students sold 20 or more tickets
Answer:
a) attached image below
b) 10 studentssold tickets
c) 40% of students sold 20 or more tickets
Step-by-step explanation:
good job on number 3 !
Hope this helps, let me know if you have any questions :)
PLEASE ANSWER!!
A quadratic function is shown on the graph.
A. Write an equation to represent the function in vertex form.
B. Write an equation to represent the function in standard form.
Answers
Answer:
see explanation
Step-by-step explanation:
A
the equation of a quadratic in vertex form is
y = a(x - h)² + k
where (h, k ) are the coordinates of the vertex and a is a multiplier
here (h, k ) = (1, - 4 ) , then
y = a(x - 1)² - 4
to find a substitute the coordinates of any other point on the graph into the equation.
using (0, - 3 )
- 3 = a(0 - 1)² - 4 ( add 4 to both sides )
1 = a(- 1)² = a ⇒ a = 1
y = (x - 1)² - 4 ← in vertex form
B
the equation of a quadratic in standard form is
y = ax² + bx + c ( a ≠ 0 )
using the result from A
y = (x - 1)² - 4 ← expand the factor using FOIL
= x² - 2x + 1 - 4
y = x² - 2x - 3 ← in standard form
PLEASEEE HELPPPPP
Triangle A and Triangle B are similar triangles that have corresponding angle measures of 98 degrees and 43 degrees . What is the angle measure of the third angle in Triangle A and Triangle B?
Answers
Answer:
47 degrees
Step-by-step explanation:
Similar just means they may be different sizes but have the same angle measure. That means the angles will be identical in both triangles A and B.
All angles must add up to 180 degrees. We already have two angles, so we just need to find the last one. 90+43= 133.
180-133=47.
How much times is 1,700,000,000 greater than 400,000,000
Answers
Answer:
4.25(Divided) or 1,300,000,000(subtracted)
(06.04)
Determine the solution to the system of equations graphed below and explain
your reasoning in complete sentences.
WILL MARK BRAINLIEST
Answers
Marcia is using the rule “Heart, Star, Star to make a repeating pattern. she wants the pattern to repeat 6 times. How many stars will be in Marcia’s pattern?
Answers
If the repeating pattern is “Heart, Star, Star". Then the number of the stars is 12 in Marcia's pattern.
What is multiplication?It is also known as the product. If the object n is given to m times then we just simply multiply them.
Marcia is using the rule “Heart, Star, Star to make a repeating pattern. she wants the pattern to repeat 6 times.
Then the number of the stars will be
→ 6 × 2
→ 12
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1) How do we find surface area? (What is it?)
2) What is the surface area of this pyramid?
Answers
Answer:
1) First find the base, then one triangle face and multiply it by four
2) 360 units squared
Step-by-step explanation:
10*10 = 100
10*13 = 130
130*2 = 260
260 + 100 = 360
Answer:
Surface Area=360
Step-by-step explanation:
All the triangles of a square pyramid are congruent meaning you can find the area of 1 and multiply by to find the total surface area of all 4 triangles.
Area of a triangle formula= bh/2
Area of 1 triangle= 13*10/2=65
Multiply by 4 to find the total surface area of the triangles: 65*4=260
Then add the area of the square base.
Area of Square base=10*10=100
Add the total area of the triangles and square base: 260+100=360
