List down 5 other objects that could represent a point, a line, a plane.
5 objects that could represent a point, a line, a plane are:
A dot of a chalk on a blackboard: A dot is a point so it is an object that could represent a point.Railway tracks: They represent parallel lines and they are never ending. Lines do not end.Blackboard: A blackboard can be represented by a plane.A sharpened pencil: We see that a pencil which is sharpened is an example of a line because it represents the figure of a line.Laptop: A laptop is a plane.Hope you could understand.
If you have any query, feel free to ask.
Planes, points and lines are the undefined terms of geometry.
A point is simply a dot, and it can be formed as follows:
A dot made by a chalkA dot made by the tip of a penA line extends indefinitely on both sides. So, we can represent a line by:
A straight roadThe legs of a tableA plane is simply a flat surface. It can be represented by
A blackboardHence, the 5 objects that can represent a point, a line and a plane are the objects listed above
Read more about point, line and plane at:
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6
Find the area of the semicircle.
Either enter an exact answer in terms of 7 or use 3.14 for 7 and enter your answer as a decimal.
Answer:
56.52 units²
explanation:
We should know circle's area: πr²Then the semi circle shall have half area, so formula: (1/2)πr²Steps:
Using the formula:
→ (1/2)πr²
→ (1/2)(3.14)(6)²
→ 56.52 units²
Solution:
Note that:
Area of circle: πr²Circle/2 = SemicircleArea of semicircle = πr²/2Radius = 6 unitsFinding the area of the semicircle:
πr²/2=> 3.14 x 6 x 6/2=> 3.14 x 6 x 3=> 56.52 units²We can conclude that the area of the semicircle is 56.52 units².
PLZ I NEED HELP Triangle DEF is rotated 90° to the right to form the triangle with the side lengths shown below. Which statements are correct? Select all that apply.
Answer:
Step-by-step explanation:
455
what is the equation of the line?
help me please??????????????
Answer:
x = -3.5 or x = 1.7
Step-by-step explanation:
Start by factoring the left side.
We need to find two numbers that have a product of -210 (6 * -35) and a sum of 11...
-10*21=-210
-10+21=11
We can rewrite 11x as -10x+21x...
[tex]6x^2-10x+21x-35=0[/tex]
Then, factor the first and second half of the left side individually:
[tex]2x(3x-5)+7(3x-5)=0[/tex]
Since 2x and 7 are both being multiplied by 3x-5, we can combine them to get:
[tex](3x-5)(2x+7)=0[/tex]
Divide the equation by 3x-5:
2x+7=0
Subtract 7 from both sides
2x=-7
Divide both sides by 2
x=-7/2=-3.5
Now, we also have to consider another answer, in which we divide the equation by 2x+7 instead of 3x-5:
3x-5=0
Add 5 to both sides
3x=5
Divide both sides by 3
x=5/3≈1.7
The price of an item has dropped to $50 today Yesterday it was $125 Find the percentage decrease.
Answer:
40% decrease.
Step-by-step explanation:
f(x)=3(2)^x ; x= -1 evaluate for X
Hey there!
f(x) = 3(2)^x
f(x) = 3(2)^-1
y = 3(2)^-1
y = 3 * 2^-1
y = 3 * 1/2
y = 3/1 * 1/2
y = 3(1) / 1(2)
y = 3/2
y ≈ 1 1/2
Thus, your answer is: y = 3/2 or y = 1 1/2
[EITHER OF THOSE SHOULD WORK BECAUSE THEY ARE BOTH EQUIVALENT TO EACH OTHER]
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Answer:
f(-1) = 3/2
Step-by-step explanation:
Solve:
f(-1) = 3(2)^-1f(-1) = 3 * (1/2)f(-1) = 3/2-Chetan K
help ill give 5 stars
If five people share three carrons of chow mein, what is each person's share?
Answer:
0.6 servings
Step-by-step explanation:
division. divide 3/5.
Help with this math question, I am graphing them to see which one is correct, but please help so I can speedy out of this, please?
Answer:
Last one: 3x²
Step-by-step explanation:
Quadratics are functions with the power of 2 as the highest.
Option 1 is a Reciprocal function
Option 2 is a linear function
Option 3 is a exponential function
Option 4 is a quadratic function
List the sides in order for biggest to smallest:
Answer:
(Biggest to smallest)
Sides: DE, FE, FD
Angles: <F, <D, <E
Step-by-step explanation:
DE = 14, FE = 10, FD = 8 (Biggest to smallest)
Each angle matches up diagonally with a side
Hope this helps!
The circular grass lawn of radius 35cm has a path of width 7cm. What is the area of the path?
pls ans i cant understand tis question
Radius of circular grass lawn(without path)=[tex]35 \: cm[/tex]
Radius of circular grass lawn (with path)=[tex]35 \: cm+7 \: cm=42 \: cm[/tex]
Area of circular path=[tex]\pi ( R + r)( R- r)[/tex]
[tex] = \displaystyle{ \frac{22}{7} (42 + 35)(42 - 35)}[/tex]
[tex] = \displaystyle{ \frac{22}{7} \times 77 \times 7}[/tex]
[tex] = \displaystyle{ \frac{22}{ \cancel7} \times \cancel{77} {}^{11} \times 7}[/tex]
[tex] = 22 \times 11 \times 7[/tex]
[tex] = 242 \times 7[/tex]
[tex] = 1649 {cm}^{2} [/tex]
[tex]\boxed{\red{\frak{unic0rntaking0ver}}}[/tex]
luise gets $4 a week for raking the leaves. they want to buy a $10 toy. how many more weeks do they need to rake
Answer:
$4 a week? darn that's a scam
Step-by-step explanation:
It should take her two and a half weeks to get $10.
Answer:
3
Step-by-step explanation:
Because she gets 4$ a week so her first week she gets 4$
second week she gets 8$
And finally her third week she would heave 12$
Have a good day :)
Katie wants to include stickers in the gift bags for a party. Stickers come in packs of 25. She wants to give each of the 17 guests at least 10 stickers. How many packs of stickers will she need? Write an equation that describes this situation.
Answer:
170
Step-by-step explanation:
don't know if its right
i calculate it...hope it help a little
The equation that describes the given situation and the number of packs required are; 25x = (17 * 10) and x = 7 packs
How to write algebraic equations?
We are told that;
Each sticker comes in a pack of 25
Now, she wants to give each of the 17 guests at least 10 stickers.
Let the number of packs she will require be x. Thus, the expression to describe this situation is;
25x = (17 * 10)
x = (17 * 10)/25
x = 6.8 packs
Approximating to a whole number gives us 7 packs of stickers required.
Read more about Algebraic Equations at; https://brainly.com/question/4344214
0)
2) Solve the equation 9x = 7(x + 2).
A) -7
B)-1
1
D) 7
Can someone please help me with this square root problem?
Answer:
Rational, Rational, Rational, Irrational, Irrational
Step-by-step explanation:
The first question:
-√49-7This number is rational
Second:
-70.8888....This number is rational. It wouldn't be rational if the digits won't repeat.
Third:
15.91This number is rational
Fourth:
17πThis is irrational. The digits of pi do not repeat, making it irrational.
Fifth:
-√14Irrational. The square root of a non-perfect square is irrational.
-Chetan K
Identify the coefficient in the expression: 6 -3x +2
Answer:
8- 3x
Step-by-step explanation:
1- Calculate
Leyan bought 2 3/4 pounds of apples for $1.32 per pound. 1 1/2 pounds of peaches for $1.20 per pound, and some tomatoes. all from grocery store. the total cost of his purchase was $9.63.
How much money did leyan spend on tomatoes
Answer:
$ 4.20
Step-by-step explanation:
He spent $3.63 on apples
$1.80 on peaches
if you subtract both those numbers from $9.63 you get $4.20
So thats the amount he spent on tomatoes
x^2 + 8x + 7 factor completely
Answer:
[tex]x^{2}[/tex]+8x+7
Step-by-step explanation:
you wanted it simplified or ..?
A daycare center has 4 infants and 11 toddlers. What fraction of the children are infants?
Answer:
4/15 of the children are infants
Step-by-step explanation:
Hope it helps!
y is inversibly prportional to x when y=7 x=9
work out the value when x=21
Answer: a) Equation become xy=1 and the second part answer is b) y=1/21
Step-by-step explanation:
I need help what is y?
Answer:
[tex]y=-5.6[/tex]
Step-by-step explanation:
[tex]2.5\left(y + \dfrac{2}{5} \right) =-13\\\\\textsf{divide both sides by 2.5} : y+ \dfrac{2}{5}=-5.2\\\\\textsf{subtract} \ \dfrac{2}{5} \ \textsf{from both sides} : y=-5.6[/tex]
A school choir needs to make T-shirts for its 75 members and has set aside some money in their budget to pay for them. The members of the choir decided to order from a printing company that charged $3 per shirt, plus a $50 flat fee for shipping. If the school orders 15 T-shirts how much will the total cost be?
Answer:
answer
3m + 50mn
correct me if I'm wrong.
Answer:
I think it would be 3m + 50mn
Step-by-step explanation:
Sorry if I am wrong, hope it helps!
Name the figure that Enrico drew below. (Lesson 10.1)
Answer:
ray
Step-by-step explanation:
A half-line is called a ray.
HELP MARKING BRAINLEIST
Answer:
23y -8
Explanation:
perimeter: length measure of all sides
perimeter of this shape:
2y - 9 + 6y +10 +5y - 7 + 10y -2
group terms ↓
2y + 6y + 5y+ 10y -9 + 10 -7 -2
add basic numbers ↓
2y + 6y +5y +10y -8
final answer ↓
23y -8
I only have like 5 more questions left guys I had to answer 38 and I don’t understand these so thanks for helping me!
Answer:
A
Step-by-step explanation:
A: y + 2 = 3(x-6)
B: y + 2 = -3(x-4)
C: y + 1 = 6(x-4)
D: y + 1 = -6(x+4)
Point slope formula: y₂ ± y₁ = m( x₂ ± x₁ )
m = 3
y + 2 = 3(x-6)
Assuming that no denominator equals zero, what is the simplest form of this expression?
Answer:
The answer is D
Step-by-step explanation:
The simplified form of the algebraic expression [tex]\frac{x+2}{x^{2} +5x+6} / \frac{3x+1}{x^{2} -9}\\[/tex] is [tex]\frac{x-3}{3x + 1}[/tex].
What is simplifying an algebraic expression?Simplification of an algebraic expression can be defined as the process of writing an expression in the most efficient and compact form without affecting the value of the original expression.
[tex]= \frac{x+2}{x^{2} +5x+6} / \frac{3x+1}{x^{2} -9}\\ \\ = \frac{x+2}{x^{2} +5x+6} * \frac{x^{2} -9}{3x+1}[/tex]
Solving in parts,
[tex]=x^{2} +5x + 6\\\\= x^{2} + 2x + 3x + 6\\\\=x(x+2) + 3(x+2)\\\\=(x+2)(x+3)[/tex]
[tex]= x^{2} -9\\\\= x^{2} - 3^{2}\\ \\=(x - 3)(x + 3)[/tex]
[tex]= \frac{x+2}{x^{2} +5x+6} * \frac{x^{2} -9}{3x+1}\\\\= \frac{x+2}{(x+2)(x+3)} * \frac{(x+3)(x-3)}{3x+1}\\ \\=\frac{x-3}{3x + 1}[/tex]
Learn more about simplifying an algebraic expression here
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Divide and check the answer with formula 252 ÷2
[tex] \hookrightarrow \sf \dfrac{252}{2} \\ \\ [/tex]
[tex] \hookrightarrow \sf126[/tex]
Can I please have some help?
Answer:
D
Step-by-step explanation:
275 increased by 10% = 302.5
10 percent of 275= 27.5
hence, we add 275 plus 27.5 and get 302.5.
The graph below models the value of a $20,000 car t years after it was purchased. Value of Car A graph titled Value of Car has years on the x-axis and Dollars on the y-axis. A line curves down and goes through points (0, 20,000), (4, 10,000), and (14, 2,000). Which statement best describes why the value of the c
Answer:
Each time, t, is associated with exactly one car value, y.
Step-by-step explanation:
The concept being tested is functions.
The graph describe is a vertical parabola that opens downwards.
All vertical parabolas are functions because the pass the vertical line test.
In other words, each time, t, is associated with exactly one car value, y.
The correct answer is the second option.