Best answer gets brainliest!!!
1. In the following pictograph, how many symbols would you use to represent 21 books?
a.7
b.3.5
c.126
d.63
Answers
Answer:
B
Step-by-step explanation:
Since 3 symbols represent 18 books, half of the symbol is 3. 18+3=21
Related Questions
Help pls
Part A: Show another way to find the slope of the line that passes through the points listed in the table. Your way must be different from Avery's method.
Answers
Step-by-step explanation:
Slope of line= (y2-y1)/(x2-x1)
= (45-18)/(20-8)
= 27/12
= 9/4
Is anyone able to help me with finding the volume of the triangular prism
Answers
Answer:
1296 m³
Step-by-step explanation:
Volume = area * height.
Take any of the given faces. I have taken 12m & 12 m.
Area of this face = 1/2 * 12m * 12m
= 72 m²
Height = 18 m.
Thus,
Volume = 72m² * 18m = 1296 m³
I need help with my question
Answers
Refer to the figure at the right. If
m22 = (a + 15)° and m23 = (a + 35)°, find the
value of a such that HĽ I HJ.
Answers
Answer:m∠1 = 145°
m∠2 = 35°
m∠3 = 35°
m∠4 = 145°
m∠5 = 145°
m∠6 = 35°
m∠7 = 35°
m∠8 = 145°
Step-by-step explanation:
The required value of a is 20°.
What are complementary angles?In geometry, complementary angles are defined as two angles whose sum is 90 degrees. In other words, two angles that add up to 90 degrees are known as complementary angles.
Now it is given that,
m22 = (a + 15)° and m23 = (a + 35)°
Let m22 and m33 be the angle between HL and HJ.
And since HL is perpendicular to HJ therefore they are complement ot each other.
Thus,
m22 + m23 = 90°
⇒ (a + 15)° + (a + 35)° = 90°
⇒ a° + 15° + a° + 35° = 90°
⇒ 2a° +50° = 90°
⇒ 2a° = 90° - 50°
⇒ 2a° = 40°
⇒ a° = 40°/2
⇒ a° = 20°
Thus, the required value of a is 20°.
To learn more about complementary and supplementary angles:
brainly.com/question/17040049
#SPJ2
Can someone pls help me solve this? I just don’t get it, please help please
Answers
Answer:
conveyor 1 10/2=5/1
conveyor 2 -8/2=-4/1
conveyor 1 is steeper
Step-by-step explanation:
conveyor 1 goes up 5 ft for every foot it runs where
conveyor 2 goes down 4 ft for every foot it runs
What is the mean of this set 18,21,20,14,17
Answers
Answer: 18
Step-by-step explanation:
Add them all up
18+21+20+14+17=90
Divide by 5 since that is how many numbers there are
90/5=18
Answer:
the mean is 18
Step-by-step explanation:
you add them all up and then divide by the number of numbers
18+21+20+14+17=90
90/5=18
hey diddle diddle the median is in the middle, you add and divide for the mean the mode is the one that appears the most and the range is the difference between.
Hope this helps!!
the function f(x)=5(2)x represents number of bacteria, f(x), growing in a culture after x hours. How many bacteria are in the culture after 3 hours?
Answers
=============================================
Explanation:
Assuming the function is f(x) = 5(2)^x, then we replace every x with 3. Then we use the order of operations PEMDAS to simplify. Or we can use a calculator to simplify in one step.
f(x) = 5(2)^x
f(3) = 5(2)^3
f(3) = 5(8)
f(3) = 40
WHAT DOES y= IxI mean
Answers
Answer:
it means the ratio of x
ex. |-5| = 5 and so on
|7|=7
Determine the slope from the following order pairs:
(0,3) (3,-1)
Answers
y^2-y^1/x^2-x^1
the answer is -4/3
A=pir^2 solve for pi
Answers
Given problem;
A = [tex]\pi[/tex] r²
Solve for π;
To solve for π implies that we make it the subject of the expression.
So;
A = π r²
Now multiply both sides by [tex]\frac{1}{r^{2} }[/tex]
So;
A x [tex]\frac{1}{r^{2} }[/tex] = [tex]\pi[/tex] x r² x [tex]\frac{1}{r^{2} }[/tex]
r² cancels out from the right side and leaves only π;
π = [tex]\frac{A}{r^{2} }[/tex]
So [tex]\pi = \frac{A}{r^{2} }[/tex]
Nyali paid $62 for a bicycle. She sold it later for $46.
What was her percentage loss?
Answers
Answer:
25.8 %
Step-by-step explanation:
FIrst you need to find how much 1% of sixty two is worth (1.612) then find the difference between values ($16) then multiply these values together to find your answer
Given the figure below find the values of x and z.
Answers
Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
So first I would do...[tex]9x+39+12x-48=180[/tex] first because it'll give me the x value, so....
[tex]9x+39+12x-48=180\\21x-9=180\\21x=189\\x=9[/tex]
So now we know that the x equals 9 so we plug it in for (9x+39) because it's vertical to the other angle across from it and vertical angles are always congruent, so...
[tex]z=9(9)+39\\z=81+39\\z=120[/tex]
so now we know that x=9 and z=120.
What's is the distance between (-2,7) and (-4,11)
Answers
Answer:
Step-by-step explanation:
The answer is in the picture above. Sorry for the previous mistake
The table represents a linear function.
[ x y ]
-----------
-2 8
-1 2
0 -4
1 -10
2 -16
-----------
What is the slope of the function?
–6
–4
4
6
Answers
See attached picture
WILL MARK BRAINLIEST, PLEASE EXPLAIN HOW YOU GOT YOUR ANSWER!!!
The equation for lines can be written as y = –6x + 2. Line t includes the point (–6, –7) and is perpendicular to line s. What is the equation of line t?
Answers
y=1/6x-6
Explanation:
What we know:
- Equation for line S: y=-6x+2
- Line T is perpendicular to line S
- Line T passes through the point (-6,-7)
To find the answer, we would need to understand two things, the first being what exactly is going on with the equation: y=-6x+2.
It’s organized in slope-intercept form, which is y=mx+b. Here’s what the variables mean:
Y=the y variable
M=the slope
X=the x variable
B=the y-intercept (the point on the line that crosses the y axis)
Knowing this, we can look at the equation for line S again: y=-6x+2. -6 is the slope of line S and 2 is the y-intercept of line S.
The second thing we need to understand is that the slope of a second line that is perpendicular to the first line is equal to the NEGATIVE RECIPROCAL of the slope of the first line.
Reciprocal: the “flip” of a fraction where the denominator and the numerator switch places
So, for example, let’s say the slope of line A=6. The slope of the line perpendicular to line A would be -1/6.
Let’s try another example: the slope of line B=-4/5. The slope of the line perpendicular to line B would be 5/4 (because two negatives makes a positive)
And here, for your question, the slope of line S=-6. Therefore, the slope of line T would be 1/6.
Awesome! We found the slope, which means so far, the equation of line T looks like this:
y=1/6x+b
All we need now is the y-intercept, which is “b” in the equation y=mx+b.
To do this, we plug in the point that the question provided us, (-6,-7), and solve. We would plug in -7 as the y variable and -6 as the x variable.
y=1/6x+b
-7=1/6(-6)+b
1) multiply 1/6 and -6
-7=-1+b
2) add 1 to both sides of the equation to isolate b
-6=b
Aha! There we have it, -6 is the y-intercept of line T.
Now, we have completed our equation:
y=1/6x-6
I hope this helps! Please comment if you have any questions.
What is the length of 15,409,000 cubic yard in miles? (to
the nearest hundred)
Answers
Answer:
Step-by-step explanation:
The cube root of 15,409,000 = 248.84 yards.
There are 1760 yards in a mile
One edge of a cube = 248.84 / 1760 = .141386 miles.
So a cube would be .00283cubic miles. Your answer does not reach a hundredth place, I don't think.
Given the values in the table on the left come from
a continuous function, which intervals must
contain an x-intercept? Select two options.
-0.8
-3.2 < x < -2.4
2.4 < x < 3.2
1.6 < x < 2.4
DONE
Answers
Answer:
B and d
Step-by-step explanation:
Edge 2020
Answer:
-3.2 and 1.6
Step-by-step explanation:
You buy 70 of your favorite songs from a Web site that charges $0.99 for each song. What is the cost of 70 songs? Use mental math.
Answers
Answer:
69.3
Step-by-step explanation:
70-0.7
Answer:
$69.3
Step-by-step explanation:
I did mental math
Find the Highest Common Factor of 120 and 150.
Answers
Answer:
30
Step-by-step explanation:
120 divided by 30 is 4, and 150 divided by 30 is 5.
Answer: What is the greatest common factor of 120 and 150? The greatest common factor of 120 and 150 is 30, because 30 is the highest number that is divisible by both numbers.
2y + x + 7 = 0
how do i solve with substitution?
Answers
Answer:
x+2y=-7
Step-by-step explanation:
2y + x =-7
x+2y=-7
what is mensuration and give three common shapes and their diagrams
Answers
Maths > Mensuration
Mensuration
Suppose you want to put a boundary around your garden or field. For that, you need to find out the length of the boundary. Also, what if you want to find out the area and volume of different geometrical shapes. So this is something we are going to see in his chapter. So let us study the topic mensuration and mensuration formulas in detail.
Cylinder
Circles
Polygons
Rectangles and Squares
Trapezium, Parallelogram and Rhombus
Area and Perimeter
Cube and Cuboid
Question. Explain the use of mensuration in daily life?
Answer. The uses of mensuration in real life are many. Some of these uses are as follows:
Measurement of agricultural fields, and site areas for the purpose of purchase/selling transactions.
Measurement of volumes for packaging solid food items, milk, and liquids.
Measurements of surface areas for the purpose of estimating the painting of houses etc.
Question. What is meant by mensuration?
Answer. Mensuration refers to the branch of mathematics which involves the study of various geometrical shapes. Furthermore, it deals with the areas and Volume of such geometrical figures. So, this subject is all about the process of measurement.
Question. Explain what is the volume in mensuration?
Maths > Mensuration
Mensuration
Suppose you want to put a boundary around your garden or field. For that, you need to find out the length of the boundary. Also, what if you want to find out the area and volume of different geometrical shapes. So this is something we are going to see in his chapter. So let us study the topic mensuration and mensuration formulas in detail.
Cylinder
Circles
Polygons
Rectangles and Squares
Trapezium, Parallelogram and Rhombus
Area and Perimeter
Cube and Cuboid
Question. Explain the use of mensuration in daily life?
Answer. The uses of mensuration in real life are many. Some of these uses are as follows:
Measurement of agricultural fields, and site areas for the purpose of purchase/selling transactions.
Measurement of volumes for packaging solid food items, milk, and liquids.
Measurements of surface areas for the purpose of estimating the painting of houses etc.
Question. What is meant by mensuration?
Answer. Mensuration refers to the branch of mathematics which involves the study of various geometrical shapes. Furthermore, it deals with the areas and Volume of such geometrical figures. So, this subject is all about the process of measurement.
Question. Explain what is the volume in mensuration?
Answer. Any solid occupies some region in space. Furthermore, the magnitude of this region is known as the volume of the solid. A standard unit of volume happens to be the cubic centimetre.
Question. What do we understand by mensuration formula?
Answer. A mensuration formula helps in computing the length-related properties of an object. This computation takes place on the basis of known lengths, areas, etc. Beyer (1987) came forward with a collection of mensuration formulas for the various plane and geometric figures. properties of an object. This computation takes place on the basis of known lengths, areas, etc. Beyer (1987) came forward with a collection of mensuration formulas for the various plane and geometric figures.
What is the solution to 4.1 x 6.5 + 7.6 + 2
Answers
Answer:
36.25
Step-by-step explanation:
On Monday, Jayla raised $ 30 and Carlos raised $ 50. After that, Jayla raised $ 12 per day and Carlos raised $ 7 per day. After how many days will they have raised the same amount? They will raise the same amount after days. (Only type in the number for your final answer)
Answers
Answer:
4 days
Step-by-step explanation:
For Jayla:
[tex]Base\ Amount = \$30[/tex]
[tex]Additional = \$12[/tex] daily
For Carlos:
[tex]Base\ Amount = \$50[/tex]
[tex]Additional = \$7[/tex] daily
Represent the number of days with d
Jayla's expression can be represented using:
[tex]30 + 12*d[/tex]
Carlos' can be represented as:
[tex]50 + 7 * d[/tex]
Equate both expressions:
[tex]50 + 7 * d = 30 + 12 * d[/tex]
[tex]50 + 7d = 30 + 12d[/tex]
Collect Like Terms
[tex]12d - 7d = 50 - 30[/tex]
[tex]5d = 20[/tex]
Solve for d
[tex]d = 20/5[/tex]
[tex]d = 4[/tex]
Identify the written form of this number: 4,812,000. A. four hundred thousand, eight hundred twelve B. four thousand and eight hundred twelfths C. four million, eight hundred twelve thousand D. four billion, eight hundred twelve million Help please
Answers
Answer: C. four million, eight hundred and twelve thousand
Step-by-step explanation:
4,812,000.
When a figure consists of 7 numbers, it is regarded as millions. For example, 8,000,000 is right million on words.
4,812,000 will therefore be called four million, eight hundred and twelve thousand.
here are 10 numbers 3 7 2 4 7 5 7 1 8 8
Answers
De divided by f if d= -24 e= -4 f= 8
Answers
-254 minus -254 equals ?
Answers
Answer:
0
Step-by-step explanation:
They both cancel eachother out.
Mr. Williams's class has 12 girls and 17 boys. He plans to randomly select one student to take notes each day for the class
notebook. If all students are present, what is the probability that he randomly selects a girl to take notes on the first day of
class?
Answers
Answer:
12/29 chance or 0.413793103
Step-by-step explanation:
12+17=29
17/29 boys
12/29 girls
Shyann won 40 halloween candies playing the toss at her school's carnival. Later she gave three to each of her friends. She only has remaining. How many friends does she have?
Answers
Answer:
alot
Step-by-step explanation:
i cant understand this
Answer:
13
Step-by-step explanation:
13 times 3 = 39
40-39=1
Question Progress
Factorise 3x^2+ 5x = 12
Answers
Answer:
(3x-4)(x+3) = 0
x = -3, 4/3
Step-by-step explanation:
3x^2 + 5x = 12
3x^2 + 5x - 12 = 0
(3x-4)(x+3) = 0
x = -3, 4/3