Answer:
129.89 m²
Step-by-step explanation:
Area of a circle of radius r is A = πr².
If r = 6.43 m, then A = π(6.43 m)² = 129.89 m²
Make a tree diagram to show sample space. Then select the total number of outcomes.
choosing black, blue or brown socks with boots, gym shoes or dress shoes
a. 3
C. 9
b. 6.
d. 12
PLEASE HELP
Answer:
C. 9
Step-by-step explanation:
3 sock options, 3 shoe options for each of those sock options.
3 x 3 = 9
Consider the graphs below. What are the explanatory variables?
D was the answer for me.
Answer:
its c
Step-by-step explanation:
I just took the test
area of a circle of radius is 6.5?
Answer:
see below
Step-by-step explanation:
The area of a circle is given by
A = pi r^2 where r is the radius
A = pi (6.5)^2
A =42.25 pi
If we approximate pi by 3.14
A = 42.25 * 3.14 =132.665
If we use the pi button
A = 132.7322896
Answer:
132.73
Step-by-step explanation:
Point E is located at -12 on the number line.Point F is located at point 9 on the number line. What is the distance between Point F on the number line?
Answer:
21 points
Step-by-step explanation:
Point E is located at -12 that is 12 points less than zero. And Point F is located at point 9 which means that is 9 points after zero.
So the total distance will be 12+9= 21 points between the two locations Point E and Point F.
We add the total difference from the point zero to get the total distance between the two points.
What is the area, in square inches, of a rectangle with a length of 21/2 inches and a width of 11/4 inches?
Answer:
28.875
Step-by-step explanation:
If you have a calculator on hand, then this kind of problem will be easy. If you multiply 10.5 by 2.75, then you would get 28.875.
Hope that this helps!
PLZ HELP ASAP!!!
please explain step by step explanation for below problems in comments after answer
1. solve equation for y: 3x - 4y = 16
2. what are the x- and y- intercepts of the line: 4x - 3y = -24
3. which ordered pair is on the graph of the equation 6x + 3y = 9
4. what is the slope of the line that passes through the points (4,8) and (1,6)
Answer:
1) y = 3/4x - 4
2) x-intercept: (-6,0) y-intercept: (0,8)
3) (-2,7)
4) slope: 2/3
Step-by-step explanation:
1) subtract 3x from both sides, divide -4 from both sides, simplify right side which gives you y = 3/4x -4
2) to get x-inter: plug in 0 for y and solve for x, the equation should look like 4x = -24, divide both sides by 4 which gives you x = -6
get y-inter: plug in 0 for x and solve for y, the equation should look like -3y=-24, divide both sides by -3 which gives you y = 8
3) plug in the points from the choices and go from there
4) slope formula: m = y2-y1/x2-x1
Translate the sentence into an equation.
Five more than the product of a number and 6 equals 4.
Use the variable w for the unknown number.
Answer:
The to your question is 5w+6=4
Answer:
Below,
Step-by-step explanation:
Produce of w and 5 = 6w
Adding 5 gives 6w + 5 so the equation is:
6w + 5 = 4.
Ariana has a collection of 100 coins. How many coins represent 10% of her collection?
Answer: 10
Step-by-step explanation:
10% is the same as 10/100
10% would equal 10 (out of the 100) coins
NEED HELP ASAP DUE SOON!!!! This scatter plot shows the relationship between the amount of time, in hours, spent working on an essay and the grade, as a percent, earned.
Enter the approximate slope of the estimated line of best fit.
Answer:
5 % per hour
Step-by-step explanation:
Pick two of the grid points the line seems to go through. I'm using (0, 50) and (4, 70).
Slope = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\frac{70-50}{4-0}=\frac{20}{4}=5[/tex]
Jim has a toolbox with a volume of 9,072 cubic inches. The height of the toolbox is 14 inches and the width of toolbox is 1 foot.
Answer: [tex]54\ in.[/tex]
Step-by-step explanation:
Given
The volume of the toolbox is [tex]9072\ in.^3[/tex]
The height of the toolbox is [tex]h=14\ in.[/tex]
The width of the toolbox is [tex]w=1\ ft\ or\ 12\ in.[/tex]
Suppose the length of the box is [tex]l[/tex]
The volume of the toolbox is given by [tex]V=l\times w\times h[/tex]
Insert the value to find the length
[tex]\Rightarrow 9072=14\times 12\times l\\\\\Rightarrow l=\dfrac{9072}{168}\\\\\Rightarrow l=54\ in.[/tex]
The length of the box is [tex]54\ in.[/tex]
Answer:
45
Step-by-step explanation:
Can anyone help me with this?
Answer:
Link Is A Virus. Do Not Search! Have A Nice Day! Owa Owa! UwU
Step-by-step explanation:
I DONT WANT TO GO TO SUMMER SHCOOL
PLEASE IF YOU HAVE ANY KNOWLEDGE OF THIS TEACH ME BC MY TEACHER DIDN'T TEACH ME ANYTHING
Answer:
Yes, both are radii.
Step-by-step explanation:
Assume S lies in the center of the circle. If so, when drawing a line from S to Y, it can be counted as half a diameter, or a radii. Same goes for line ST.
5. Name all the angles that correspond to angle 6 in the drawing
below.
PLEASE HELP FOR BRAINLIEST!!
Answer:
Slope = 1/5
Step-by-step explanation:
After plotting the points you do rise over run. 1/5 or 1 over 5 meaning you rise 1 and run across 5 to get to the next point
Es una division el cociente es 14, el divisor 19, calcule el dividiendo si se sabe que el residuo resutó ser el maximo.
Answer:
266
Step-by-step explanation:
En Matemáticas, al realizar la operación de División, la regla es la siguiente:
Dividendo ÷ Divisor = Cociente
En la pregunta anterior, se nos da:
Divisor = 19
Cociente = 14
Dividendo =?
Para encontrar el dividendo,
Dividendo = Divisor × Cociente
Por eso,
Dividendo = 19 × 14
= 266
Por lo tanto, el Dividendo = 266
Write a rule to describe each reflection.
Rule:r() (x,y)=()
Who ever answers this question will get 25 points.
Answer: ok so if it is ok im sorry but like how is it like is there supposed to be a number? im sorryyy i thught i had it before i saw the picture
Step-by-step explanation:
Rule 1: Multiply by 2, then add 1/3 starting from 1. Rule 2: Add 1/2, then multiply by 4 starting from 0. What is the fourth ordered pair using the two sequences
Answer:
(10 1/3, 42)
Step-by-step explanation:
a1 = 1
a2 = a1×2 + 1/3 = 2 1/3
a3 = a2×2 + 1/3 = (a1×2 + 1/3)×2 + 1/3 = a1×4 + 2/3 + 1/3 =
= 4 + 3/3 = 5
a4 = a3×2 + 1/3 = ... = 10 1/3
b1 = 0
b2 = (b1 + 1/2)×4 = (0 + 1/2)×4 = 1/2 × 4 = 2
b3 = (b2 + 1/2)×4 = ((b1 + 1/2)×4 +1/2)×4 = 16×b1 + 16/2 + 4/2=
= 16/2 + 4/2 = 8 + 2 = 10
or (to check we made no mistake)
= (2 + 1/2)×4 = 8 + 2 = 10. => all ok, no mistake
b4 = (b3 + 1/2)×4 = ... = (10 + 1/2)×4 = 40 + 2 = 42
so, the fourth ordered pair (= the fourth elements of each sequence) is therefore (10 1/3, 42)
Which of the systems of linear equations are equivalent?
Answer:
The first two
Step-by-step explanation:
The first two
The bottom equation of the second set is the
bottom equation of the first set multipied by -2
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
:;;;,,,
Step-by-step explanation:
^^^^^^^^^!!~~~
SOMEONE PLEASE HELP ITS WORTH 20 POINTS
Answer:
Isosceles Triangle... Btw it's worth 5 points
what is 4 /25 in a whole number
Step-by-step explanation:
4/25 cannot be converted into a whole number, it is less than 1
Answer:
decimal = 0.15
whole number (rounded) = 0
What is the explanation please help me
Answer:
Yes. If the first friend descended 0.11 mile (-0.11) and the second friend descended 0.12 mile (-0.12), then the second friend had to have caught up to the first friend knowing that the second friend descended at least 0.11 mile. Hope this helps :)
Step-by-step explanation:
ILL BRAINLIEST YOU PLEASE HELP ME
Answer:
1.) 15
2.) 12.5
Step-by-step explanation:
NEED HELP ASAP MAKE IT NEAT AND NOT TOO LONG!!!!
Use the function f(x) = 2x^2 − 3x − 5 to answer the questions.
Part A: Completely factor f(x). (2 points)
Part B: What are the x-intercepts of the graph of f(x)? Show your work. (2 points)
Part C: Describe the end behavior of the graph of f(x). Explain. (2 points)
Part D: What are the steps you would use to graph f(x)? Justify that you can use the answers obtained in Part B and Part C to draw the graph. (4 points)
Answer:
Step-by-step explanation:
A
(2x - 5)(x + 1)
B)
The x intrcepts occur when the factors equal zero.
2x - 5 = 0
2x = 5
x = 5/2
x = 2 1/2
C
I will give the the minimum from completing the square
y = 2(x - 0.75)^2 - 6.125
as x approaches + infinity, y approaches + infinity.
as x approaches - infinity, y approaches + infinity.
It's a quadratic. The y values go to plus infinity, when x goes from - infinity to + infinity.
D
Desmos is the most useful tool for this part of the question. What it shows is the two roots and the minimum at (0.75,-6.125. A parabola does what the end behavior describes. The roots are clearly labeled as is the minimum.
HELp meh with this question it very hard
Answer:
AB = 7 cmStep-by-step explanation:
Use the law of cosines to find the side AB:
[tex]AB = \sqrt{(x + 3)^2+x^2-2x(x+3)cos (60)} =[/tex] [tex]\sqrt{x^2+6x+9+x^2-x^2-3x} = \sqrt{x^2+3x+9}[/tex]Use the Heron's area formula next:
[tex]A = \sqrt{s(s - a)(s-b)(s-c)}[/tex], where s- semi perimeters = 1/2[x + x + 3 + [tex]\sqrt{x^2+3x+9}[/tex]) = 1/2 (2x + 3 + [tex]\sqrt{x^2+3x+9}[/tex])s - a = 1/2 (2x + 3 + [tex]\sqrt{x^2+3x+9}[/tex] - 2x - 6) = 1/2 ([tex]\sqrt{x^2+3x+9 }[/tex] - 3)s - b = 1/2 (2x + 3 + [tex]\sqrt{x^2+3x+9}[/tex] - 2x) = 1/2 ([tex]\sqrt{x^2+3x+9}[/tex] + 3)s - c = 1/2 (2x + 3 + [tex]\sqrt{x^2+3x+9}[/tex] - 2[tex]\sqrt{x^2+3x+9}[/tex]) = 1/2 (2x + 3 - [tex]\sqrt{x^2+3x+9}[/tex])Now
(s - a)(s - b) = 1/4 [(x²+3x+9) - 9] = 1/4 (x² + 3x)s(s - c) = 1/4 [(2x + 3)² - (x² + 3x + 9)] = 1/4 (3x²+ 9x) = 3/4(x² + 3x)Next
A² = 3/16(x² + 3x)(x² + 3x)300 = 3/16(x² + 3x)²1600 = (x² + 3x)²x² + 3x = 40Substitute this into the first equation:
[tex]AB = \sqrt{40 + 9} = 7 cm[/tex]Answer:
AB = 7 cm
Step-by-step explanation:
Sine Rule for Area
[tex]\sf Area =\dfrac{1}{2}ab \sin C[/tex]
where:
a, b and c are the sides opposite angles A, B and Ca and b are the sides and C is the included angleGiven:
Area = √(300) cm²a = (x + 3) cmb = x cmC = 60°Substitute the given values into the formula and solve for x:
[tex]\begin{aligned} \sf Area & = \dfrac{1}{2}ab \sin C \\\\\implies \sqrt{300} & = \dfrac{1}{2}(x+3)x \sin 60^{\circ}\\\\\sqrt{300} & = \dfrac{\sqrt{3}}{4}(x+3)x\\\\\dfrac{4\sqrt{300}}{\sqrt{3}} & = x^2+3x\\\\40 & = x^2+3x\\\\x^2+3x-40 & = 0\\\\ (x-5)(x+8)& = 0\\\\ \implies x & = 5, -8\end{aligned}[/tex]
As length is positive, x = 5 only.
Substitute the found value of x into the expressions for the side lengths:
a = 5 + 3 = 8 cmb = 5 cmCosine rule
[tex]c^2=a^2+b^2-2ab \cos C[/tex]
(where a, b and c are the sides and C is the angle opposite side c)
Substitute the found values into the formula and solve for AB:
[tex]\begin{aligned}c^2 & =a^2+b^2-2ab \cos C\\\implies AB^2 & =8^2+5^2-2(8)(5) \cos 60^{\circ}\\AB^2 & =89-40\\AB^2 & =49\\AB & =\sqrt{49}\\AB & = \pm 7\end{aligned}[/tex]
As length is positive, AB = 7 cm.
Learn more about the sine rule for area here:
https://brainly.com/question/27088353
Find the equation of the line that passes through (1,3) and is perpendicular to y=2x−1. Leave your answer in the form y=mx+c
Answer:
y = -1/2x + 3.5
Step-by-step explanation:
In order to pass through the point (1, 3), and is perpendicular to y = 2x - 1, then the line must be y = -1/2x + 3.5. Hope this helps!
The following table displays the number of sofas sold in a furniture store during certain months of the year.
Furniture Store Sofa Sales
January 255
February 234
March 263
April 229
May 248
Based on these data, which statement is correct?
A. There are outliers.
B. The mean best describes the data.
C. The median best describes the data.
D. The measure of variability that best describes the data is the IQR, 27.5.
Hurry please !! It’s timed...
A school fundraiser sells 1,200 raffel tickets each ticket costs 2 there is one grand prize worth 100 and 5 smaller prizes 20each what is the excpeted gain or loss for buying 1 ticket
Find the
equation of the circle with center at (3, -2) and radius of 3.