Answer:
The circumference is 66cm
Radius = Diameter/2
= 21/2 CM
= 10.5 CM
Circumference of a circle = 2πr
= 2 × 22/7 × 10.5 CM
Los lados de un triángulo rectángulo tienen por medida tres números enteros consecutivos. Calcula los lados del triángulo.
Answer:
Los lados del triángulo rectángulo miden 3, 4 y 5, respectivamente.
Step-by-step explanation:
Un triángulo rectángulo puede ser descrito mediante el teorema de Pitágoras, para el caso de tres lados representando tres números enteros consecutivos, tenemos que:
[tex](n+2)^{2} = n^{2} + (n+1)^{2}[/tex] (1)
Donde [tex]n[/tex] es un número natural.
A continuación, expandimos la expresión y resolvemos:
[tex]n^{2}+4\cdot n +4 = n^{2} + n^{2} +2\cdot n + 1[/tex]
[tex]n^{2}-2\cdot n -3 = 0[/tex]
[tex](n -3) \cdot (n+1) = 0[/tex]
La única solución factible es [tex]n = 3[/tex]. En consecuencia, los lados del triángulo rectángulo miden 3, 4 y 5, respectivamente.
Please Help Me. I don't understand this question.
Answer:
i would help but i forgot the formula smh
Answer:
264 sq ft.
Step-by-step explanation:
Find the SURFACE area. Find the areas for all the shapes surfaces, not the volume.
Rewrite as a simplified fraction.
0.8_= ?
Answer:
[tex]\frac{8}{9}[/tex]
Step-by-step explanation:
The answer would be: 8/9
:)
The sum of four and twelve is??
Answer: 16
Step-by-step explanation:
12+4= 16
Applications of the Pythagorea Question 1 What is the distance between the points (-3, 4) and (5, 4)?
Answer:
8 units
Step-by-step explanation:
distance= sqrt((x2-x1)^2+(y2-y1)^2))
sqrt((5-(-3))^2+(4-4)^2))
sqrt(5+3)^2+(4-4)^2)
sqrt(8^2+(4-4)^2)
sqrt(64+(4-4)^2)
sqrt(64+0^2)
sqrt(64+0)
sqrt(64)
sqrt(8^2)
8
PLEASE HELP ASAP 40 PTS
6.
What are the values of x and y?
Answer:
The value of x = 36°, while the value of y = 72°.
Step-by-step explanation:
All of these angles add up to 360°.
Opposite angles are always equivalent, so the angle opposing x would be 36°, which means x = 36°.
360 - 2(36) = 288
288/4= 72
To check:
(72 * 4) + 2(36) = 360
Which equation best represents the relationship between x, the age of the machine in years, and y, the value of the machine in dollars over this 10-year period?
Answer:
y=-0.5x+8
Step-by-step explanation:
stat, or just rise over run
solve for the variable
u^2 + 2 = 11
Answer:
There are two roots: -3 and 3
Step-by-step explanation:
Combine the like terms first. We get u^2 = 9.
There are two roots: -3 and 3.
Which transformation will move polygon ABCD completely into one quadrant?
A) up 5 units
B) down 5 units
C) left three units
D) reflect over the x-axis
Answer:
A) up 5 units
Step-by-step explanation:
Given
See attachment for grid
Required
Which places ABCD in a quadrant
Considering vertical movements
From the x-axis, the distance between each point and the line of the x-axis is (the y coordinates):
[tex]A = -4[/tex]
[tex]B =3[/tex]
[tex]C = 7[/tex]
[tex]D = -2[/tex]
Considering the highest magnitudes in the positive and negative column, we have:
[tex]A = -4[/tex] and [tex]C = 7[/tex]
[tex]A = -4[/tex] means that a upward movement by (4 + 1) units will move ABCD completely in a quadrant;
[tex]4 + 1 = 5[/tex]
Hence, 5 units upward -- This represents option (a)
[tex]C = 7[/tex] means that a downward movement by (7 + 1) units will move ABCD completely in a quadrant
[tex]7 + 1 = 8[/tex]
Hence, 8 units downward
Consider horizontal movements
From the y-axis, the distance between each point and the line of the x-axis is (the x coordinates):
[tex]A = -8[/tex]
[tex]B = -6[/tex]
[tex]C = -3[/tex]
[tex]D =-2[/tex]
Considering the highest magnitudes in the positive and negative column, we have:
[tex]A = -8[/tex]
[tex]A = -8[/tex] means that a left movement by (8 + 1) units will move ABCD completely in a quadrant;
[tex]8 +1 = 9[/tex]
Hence, 9 units upward
(a) answers the question
Bella spent 20% of her paycheck at the mall, and 40% of that was spent at the movie theater. Bella spent a total of $14,40 at the movie theater for her movie ticket, popcorn, and a soft drink. How much money was in Bella's paycheck?
Answer:
229$
Step-by-step explanation:
i did the math hope it helps please mark me brainist
can someone help quick
Step-by-step explanation:
22+2x+8= x+20
2x+30=x+20
x+30=20
x=-10
answer is -10
Write a recursive formula for a_na n , the n^{\text{th}}n th term of the sequence 16, -8, 4, ...16,−8,4,....
Answer:
aₙ = -2aₙ₊₁
Step-by-step explanation:
According to the sequence given 16, -8, 4, ...
a1 = 16
a2 = -8
a3 = 4
From the values, we can conclude thst;
a1 = -2(-8)
Since a2 = -8, then;
a1 = -2(a2)
Similarly
a2 = -2(4)
a2 = -2a3
The subsequent sequence are;
a3 = -2a4
The nth term will ne;
aₙ = -2aₙ₊₁
Hence the required recursive function is aₙ = -2aₙ₊₁
The recursive formula for the given sequence is
[tex]a_{n}=-\frac{1}{2} (a_{n-1})\\[/tex]
Given :
The terms of the sequence are 16, -8, 4, ...
Lets find the difference between the terms
[tex]-8-16=-24\\4-(-8)=12[/tex]
There is no common difference. So this is not an arithmetic sequence
Now we check common ratio'
[tex]\frac{-8}{16} =-\frac{1}{2} \\\frac{4}{-8} =-\frac{1}{2} \\[/tex]
The common ratio is -1/2
Now we write recursive formula
[tex]a_{n}=r(a_{n-1})[/tex]
Where 'r' is the common ratio
[tex]a_{n}=r(a_{n-1})\\a_{n}=-\frac{1}{2} (a_{n-1})\\[/tex]
The recursive formula is
[tex]a_{n}=-\frac{1}{2} (a_{n-1})\\[/tex]
Learn more : brainly.com/question/24231459
Lol please help
_________________________________________________________________
Write and solve an equation to find the missing dimension of the prism.
Volume = 1620 cm3
Answer:
[tex]V=bh_{2}[/tex]
The length of the base of a rectangle is increased by 10% but the area remains unchanged. By what percent was the breadth reduced?
Answer:
9.09%
Step-by-step explanation:
Area of a rectangle = length x breadth
to determine the answer, i would use an example
Assume length = 10
breadth 20
Area = 10 x 20 = 200
If the length is increased by 10%, the new length becomes = 1.1 x 10 = 11
11 x b = 200
b = 200/11 = 18.181818
Percentage reduction = (18.181818 / 20) - 1 = 0.0909 = 9.09%
Plz help no links or downloads.
Answer:
DEF is acute (smaller than 90°...small = “cute” is what I tell my kids)
Triangle is equilateral
equi = equal
Lateral = sides
Help please! Will give brainiest if correct!
Find the slope of the line. Write your answer in simplest form.
For this one it’s 3/4. (Positive since it’s going up and you can’t simplify it anymore).
i give brenliest
The Pythagorean Theorem for a right triangle is a2 + b2 = c2, where
a and b are the legs of the triangle and c is its hypotenuse. The shorter
leg is 10 inches less than the other leg, and the hypotenuse is 10 inches
longer than that other leg. What is the length of the hypotenuse?
b) 40 inches
a) 30 inches
c) 50 inches
d) 60 inches
Answer:
C) 50
Step-by-step explanation:
One leg is 30, the other is 40, and the hypotenuse is 50
Please brainliest!
HELPPPP!!! ASAPPPPP!!!
Write the standard form for three hundred fifty-eight million, two thousand, four hundred seventy-nine
Answer:
358,002,479
Step-by-step explanation:
This is what it is.
Answer: 358,002,479
Step-by-step explanation:
First, you have 358 million, or 358,000,000.
Next, you have 2,000. You can add that to 358,000,000 and you get 358,002,000.
Finally, you have 479. You can add that to 358,002,000, and get 358,002,479.
Here's a visual representation:
358,000,000
2,000
+ 479
358,002,479
“Peaches at the Farmer’s Market cost $2.70 per pound.”
is that proportional or non-proportional?
The general formula for Volume of a Prism is V = Bh. What does the "B" in the formula stand for?
Answer: The formula for the volume of a prism is V=Bh , where B is the base area and h is the height. The base of the prism is a rectangle. The length of the rectangle is 9 cm and the width is 7 cm.
Step-by-step explanation: my teacher tought me this
Hello can anyone give me the step by step answer?
Answer:
C
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 8, - 42 ) and (x₂, y₂ ) = (- 3, - 17 ) ← 2 ordered pairs from the table
m = [tex]\frac{-17-(-42)}{-3-(-8)}[/tex] = [tex]\frac{-17+42}{-3+8}[/tex] = [tex]\frac{25}{5}[/tex] = 5
The line crosses the y- intercept at (0, - 2 ) , then
y = 5x - 2 → C
Answer:
C. y=5x-2
Step-by-step explanation:
Put the numbers in the x column in the x of the equation and do the same for y. Solve, and if both sides are equal, the equation is correct.
You can use any set of x and y and try each equation till you find the right one. (0,-2) would be the easiest, because you can just make x=0, but you have to test the correct equations again with a different set after. {I used (-8,-42).}
Which statement about h(x) = x² + 5x - 6 is true?
Help please
Answer:
A. -6;1
Step-by-step explanation:
h(x) = x² + 5x - 6
D=25+24=49=7²
[tex]x_{1} =\frac{-5-7}{2}=-6\\[/tex]
[tex]x_{2} =\frac{-5+7}{2}=1[/tex]
Answer the dang question.
Answer:
the solution to the system of equations is (8,10).
The formula for calculating wage is \dfrac pt t p start fraction, p, divided by, t, end fraction where ttt is the time duration for which an amount ppp of money is paid. Astrid is looking for a job at a call center. Call center A offers her 151515 dollars per hour and call center B offers her 252525 cents per minute. Which place offers a higher wage?
Answer:
C, they are the same
Step-by-step explanation:
I got it right on Khan Academy! Please mark me as brainliest. Stay safe y'all. Btw, I'm not lying, it is correct. <3
Both the call centers offer equal wages
What is unitary method?
The unitary method is a strategy for problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value.
1minute=252525 cents
⇒60 minutes =252525 x 60 cents
=15151500 cents
=151515 dollars
Therefore,Both the call centers offer equal wages
Learn more about unitary method,https://brainly.com/question/1955459
#SPJ2
g) 4−6
/9
=
1
/3
+ x
Answer:
x = 3
Step-by-step explanation:
Given
4 - [tex]\frac{6}{9}[/tex] = [tex]\frac{1}{3}[/tex] + x ( multiply through by 9 to clear the fractions )
36 - 6 = 3 + 9x
30 = 3 + 9x ( subtract 3 from both sides )
27 = 9x ( divide both sides by 9 )
3 = x
Please help!!
I’m so confused
Answer:
A and C
Step-by-step explanation:
The distance between P and Q is 14.
With the first one the absolute value is of -8 is 8 and 8+5 is 14 so that's right.
The third one subtracting a negative is like adding a positive. So it would be 5+8 which is also 14.
The other to equal 3 and -3 which is wrong.
one-fifth of X is 12 i dont know how to explain
Answer:
x=60
Step-by-step explanation:
1/5x=12
this is the equation your question isn't quite clear so I'm not sure if you want the equation or the evaluated problem.
(5/1) 1/5x=12 (5)
x=60
I hope this helps :)
HELP PLZ
Tori went scuba diving to a depth of 20 feet below sea level. After she got out of the ocean, she sat on a hill 7 feet above sea level to rest.
Which inequality compares Tori's locations?
O A -7 > 20
OB. -7 < 20
C. -20 > 7
D. -20 < 7
Answer:
D.
Step-by-step explanation:
A circular plate has circumferrence 30.8 inches. What is the area of this plate ? Use 3.14 for π.
Answer:
75.39 in^2
Step-by-step explanation:
circumference=2πr
30.8=2(3.14)r
30.8=6.28r
4.9=r
Now that we know the radius, we can plug it in for the area equation
area=πr^2
area=(3.14)(4.9)^2
area=(3.14)(24.01)
area=75.39 in^2