Answer:
Option (1)
Step-by-step explanation:
Formula to get the area of a circle is given by,
Area = πr²
Here r = radius of the circle
Since, Radius of a circle = [tex]\frac{\text{Diameter}}{2}[/tex]
Therefore, Radius of the circle with diameter = 31.6 cm will be,
Radius = [tex]\frac{31.6}{2}[/tex]
= 15.8 cm
Now Area of the circle = π(15.8)²
= 249.64π cm²
= 783.87 cm²
≈ 783.9 cm²
Therefore, Option (1) will be the correct option.
The table shows the different prices at a diner.
Sandwich $5
Drink $2
Dessert $3
What is the total cost for both customers?
a $10
b. $20
c. $25
d. $35
Which symbol should go in the blank
8x 5/4 __8
Answer:
it should be x
Step-by-step explanation:
hope this helps
find the value of x
PLZ
Answer:
x=21
Step-by-step explanation:
wow this waz ez
Can somebody help me?
Which of the binomials below is a factor of this trinomial?
x^2-7x-44
Answer:
Two factors:
(x + 4) and (x - 11)
Step-by-step explanation:
Did not see list of possible binomials
ill
Simplify each expression:
1. 2x + 4x-5 - +10
2. 4( 5x - 11) - (2x + 11)
3. 5.6y + 9.2x -3.3y +11 - 2x -13
The figure is a rectangular prism. Identify which one of the line segments in the given figure is perpendicular to . HG
A) BC
B) FG
C) EF
D) BF
Answer:
B
Step-by-step explanation:
Llam
Is this a right triangle?
Use the Pythagorean Theorem to find out!
20 cm
21 cm
29 cm
Yes
No
Answer:
Yes
Step-by-step explanation:
29×29=841
21×21=441
20×20=400
29^2-21^2=20^2
841-441=400
400=400
Yes it is a right angle triangle
pls help or else I’m screwed.
Answer:
D. x = 18 cm , y = 9
Step-by-step explanation:
With reference angle 60
perpendicular (p) = 9[tex]\sqrt{3}[/tex]
base(b)= y
hypotenuse (h) = x
Then
sin 60 = p/h
[tex]\frac{\sqrt{3} }{2} = \frac{9\sqrt{3} }{x}[/tex]
x = 18
Now
cos 60 = b/h
1/2 = y/18
y = 9
Hope it will help :)
Answer:
it's answer is
D. = 18 and y = 9
The librarian needs to return 24 books to the shelf. In one hour she finished 3/4 of the job. How many books has she
Answer:
18 books done and 6 books left
Step-by-step explanation:
24 *3/4 = 18
Answer:
18 books done and 6 books left
Step-by-step explanation:
F(x)=3x-2 find f^-1(x) than find f^-1(13)
Answer:
see explanation
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 3x - 2 ( add 2 to both sides )
y + 2 = 3x ( divide both sides by 3 )
[tex]\frac{y+2}{3}[/tex] = x
change y back into terms of x with x = [tex]f^{-1}[/tex] (x)
[tex]f^{-1}[/tex] (x) = [tex]\frac{x+2}{3}[/tex]
To evaluate [tex]f^{-1}[/tex] (13) substitute x = 13 into [tex]f^{-1}[/tex] (x) , that is
[tex]f^{-1}[/tex] (13) = [tex]\frac{13+2}{3}[/tex] = [tex]\frac{15}{3}[/tex] = 5
Y = 4( x + 2)^2 - 8
Convert the equation from vertex form to standard form.
Answer:
hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
need help ty I’ll give brainliest
Answer:
120
Step-by-step explanation:
all angles of a triangle add up to 180. 180-15-45= 120.
:D
brainliest pls
Given :
Measure of an angle = 15°
Measure of the second angle = 45°
Let the measure of the third angle be x.
We know that :
▪︎Sum of all angles of a triangle = 180°[angle sum property]
Which means :
[tex] =\tt 15 + 45 + x = 180[/tex]
[tex] =\tt 60 + x = 180[/tex]
[tex] =\tt x = 180 - 60[/tex]
[tex]\hookrightarrow\color{plum}\tt \: x = 120°[/tex]
Thus, the measure of the third angle = 120°
Since the sum of all these angles is equivalent to 180°[15+45+120=180] we can conclude that we have found out the correct measure of the third angle.
Therefore, the correct option is (C) 120
which equation is the point-slope equation of the line that passes through the points (-2,-1) and (7,-4)?
Answer:
B (for question 7)
Step-by-step explanation:
To find the slope, we use the equation [tex]m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex].
m = (-4+1)/(7+2) = -3/9 = -1/3
Since B is the only option that would give a slope of -1/3, B must be the answer.
(you can use this same method for question 8)
What is 2.35 rounded to the nearest hundredth.
2.35 is already rounded to the nearest hundredth.
Work out the size of angle x
which angle is vertically opposite to <CFD
Answer:
show more of the pict i can't tell what it is
What is the y-intercept of the graph? *
Answer:
it's 5 cause it meet the y axis
Find the cincumference?
i need help with algebra 9
Answer:
i got you just tell me the question
Step-by-step explanation:
A graph of a system of two equations is shown.
ту
6
2.
-6
-4
-2
2
4
6
-2
-4
-6
What is the solution of the system?
-2 -1 0 1 2
Answer:
x=1, y=2
Step-by-step explanation:
thats where they intersect so its the solution
BRAINLIEST WILL BE AWARDED!
Answer:
photomath
Step-by-step explanation:
i dont know the answer but photomath is so much easier to get help.
Answer: The second one
Step-by-step explanation:
sorry I don't know how to explain it
I just need help with these 2 questions !
Answer:
-4/3
9/4
Step-by-step explanation:
hope this helped needed a longer answer lol
How can Adam figure out the height of the light pole?
Please Help
Answer:
By using a yard stick taped together maybe
Step-by-step explanation:
Explain how to write a quadratic equation given the vertex and another point on the graph, in the form of ()=(−ℎ)2+, vertex form.
Vertex: (−4,6)and point (−3,3)
If f(x)=(1/8)(8x) what is f(3)?
Answer:
I think it is 64 but not 100% sure
Hope this helps :)
4) Which speed is the fastest?
A. 4 miles in 1/3 hour
B. 1/3 mile in 4 hours
C. 1/2 miles in 3 hours
D. 6 miles in 2/3 hour
Please show all work done to get your answer. URGENT!!!!! I WILL MARK THE FIRST PERSON TO ANSWER BRAINLIEST!!!
HELP!!
If we changed the -3 to a 3 in the equation, what would happen to the graph?
Answer:
It would change the y-intercept, so if it turned into a 3, the slope would just go higher at the beginning.
Step-by-step explanation:
Hope it helps!
The graph of the new equation y = 2ˣ⁻⁴ + 3 will have the same shape as the original graph, but it will be shifted 4 units to the right and 3 units up.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
The equation y = 2ˣ⁻⁴ - 3 is an exponential function that has been shifted 4 units to the right and 3 units down from the basic exponential function y = 2ˣ.
If we change the -3 to a 3, we get the new equation:
y = 2ˣ⁻⁴ + 3
This new equation represents the original exponential function shifted 4 units to the right and 3 units up.
Therefore, the graph of the new equation y = 2ˣ⁻⁴ + 3 will have the same shape as the original graph, but it will be shifted 4 units to the right and 3 units up.
To learn more on Graph click:
https://brainly.com/question/17267403
#SPJ2
I'm doing a math test, and I don't understand this question. How many 1/3 inch cubes does it take to fill a box with width 2 2/3 inches, length 3 1/3 inches, and height of 2 1/3 inches?
Answer: 62
Step-by-step explanation:
First and foremost, we have to calculate the volume of the box which will be:
= 2 2/3 × 3 1/3 × 2 1/3
= 8/3 × 10/3 × 7/3
= 560/27
= 20 20/27
The number of 1/3 inch cubes needed to fill the box will then be:
= 20 20/27 ÷ 1/3
= 560/27 ÷ 1/3
= 560/27 × 3
= 560/9
= 62 2/9
Therefore, 62 boxes can be filled
Dustin wants a new pair of shoes that cost $40. His mom pays 75% of the cost and dustin pays 25%. How much do they each pay?
Given:
Dustin wants a new pair of shoes that cost $40.
His mom pays 75% of the cost and dustin pays 25%.
To find:
How much do they each pay?
Solution:
We have,
Total cost of shoes = $40
His mom pays 75% of the cost.
[tex]\text{Mom pays}=\dfrac{75}{100}\times 40[/tex]
[tex]\text{Mom pays}=\dfrac{3}{4}\times 40[/tex]
[tex]\text{Mom pays}=30[/tex]
Dustin pays 25% of the cost.
[tex]\text{Dustin pays}=\dfrac{25}{100}\times 40[/tex]
[tex]\text{Dustin pays}=\dfrac{1}{4}\times 40[/tex]
[tex]\text{Mom pays}=10[/tex]
Therefore, Dustin pays $10 and his mom pays $30.