Answers
Answer:
C. 30-60-90
Step-by-step explanation:
the ratio for a 3-6-9 triangle is x, 2x, x√3
if x=8, then 2x=16, and x√3 =8√3
it's not A because it is a right angle triangle.
it's not B because the ratio for an isoceles triangle is x:x:x√2. since a and b are not the same value, it can be assumed that it is not the answer
Answer:
c
Step-by-step explanation:
The longest side is hypotenuse.
Using Pythagorean theorem:
c² = a² + b²
16² = 8² + (8√3)²
256 = 256 True, so it is a right triangle.
Short leg = 8, long leg = 8√3
For 30-60-90 right triangle:
short leg = hypotenuse/2 = 16/2 = 8 , true:
long leg = short leg*√3 = 8√3, true.
Related Questions
A line passes through the point (-4, 7) and has a slope of -4.
Write an equation in slope-intercept form for this line.
Answers
Answer:
y= -4x-9
Step-by-step explanation:
We just need to find the y-intercept, b. Recall that y-intercept form is y=mx+b. Plug in what we have. y=-4, m=-4, x=-4. 7=-4(-4)+b. 7=16+b -9=b now rewrite the equation with b now. y=-4x-9
Answer:
y = - 4x - 9
Step-by-step explanation:
Line is passing through the point [tex] (-4,\: 7)= (x_1, \: y_1) [/tex] and has slope m = - 4.
Equation of line in slope point form is given as:
[tex](y-y_1) = m (x-x_1) \\
\therefore (y-7) = - 4\{x-(-4)\}\\
\therefore y - 7 = - 4(x + 4)\\
\therefore y = - 4x - 16+7\\
\huge \red {\boxed {\therefore y = - 4x - 9}} \\[/tex]
This is the equation of line in slope-intercept form.
HELPP!! ASAP! show work plaese.
Answers
Answer:
The distance between to 2 point is 15 units.
Step-by-step explanation:
You have to apply distance formula using coordinates :
[tex]distance = \sqrt{ {(x2 - x1)}^{2} + {y2 - y1)}^{2} } [/tex]
Let (x1,y1) be (-8,6),
Let (x2,y2) be (1,-6),
[tex]distance = \sqrt{ {(1 + ( - 8))}^{2} + { (- 6 - 6)}^{2} } [/tex]
[tex]distance = \sqrt{81 + 144} [/tex]
[tex]distance = \sqrt{225} [/tex]
[tex]distance = 15 \: units[/tex]
5^7/5^3 in factored form
Answers
Answer:
work is shown and pictured
What is the value of the missing side x?
Answers
Answer: [tex]3*\sqrt{3}[/tex] = x
Step-by-step explanation:
With our knowledge of a 30 60 triangle we can determine the value a from dividing 6 by 2. Look at my diagram for clarification. From now know the value of a as 3 we can make x = [tex]3*\sqrt{3}[/tex] .
What percent of 75 is 18.75
Answers
Answer:
25%
Step-by-step explanation:
Let p be the percent
Of means multiply and is means equals
p * 75 = 18.75
Divide each side by 75
75p/75 = 18.75 /75
p =.25
Change to percent form
p = 25%
Answer:
[tex]25\%[/tex]
Step-by-step explanation:
Let the percent as x
[tex]x \times 75 = 18.75 \\ 75x = 18.75 \\ \frac{75x}{75} = \frac{18.75}{75} \\ x = 0.25 \\ \\ \\ 0.25 = \frac{25}{100} = 25\%[/tex]
hope this helps
brainliest appreciated
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A plane takes off from New York with 72 of the 90 seats occupied. what percentage of the seats are not occupied?
Answers
Answer:
1/5 = 20% not occupied.
Step-by-step explanation:
There are 72 occupied seats out of 90 total seats. We can say that there are 18 empty seats (90 - 72 = 18).
So there are 18 out of 90 seats occupied. We can rewrite that as 18/90. 18/90 simplifies to 9/45 = 3/15 = 1/5 = 20%.
As such, 20% of the seats are not occupied.
The radius of a circle is 5 miles. What is the area?
Give the exact answer in simplest form.
square miles
Submit
Answers
Answer:
78.5, or 25 pi
Step-by-step explanation:
25(3.14)
which choice is equivalent to the quotient below?
Answers
Answer:
D)[tex] \sqrt{5} [/tex]
Step-by-step explanation:
[tex] \frac{ \sqrt{45} }{ \sqrt{9} } = \ \sqrt{ \frac{45}{9} } = \sqrt{5} [/tex]
Answer:
B
Step-by-step explanation:
The diameter of a circle is 6 cm. Find its area to the nearest tenth.
Answers
Answer: 28.27 cm
Step-by-step explanation: A circle of radius = 3 or diameter = 6 or circumference = 18.85 centimeters has an area of 28.27 square centimeters.
Answer:
[tex]= 28.26 {cm}^{2} \\ \\ [/tex]
Step-by-step explanation:
[tex]d = 2r \\ 6 = 2r \\ \frac{6}{2} = \frac{2r}{2} \\ r = 3 \\ \\ \\ area = \pi {r}^{2} \\ = \pi \times 3 \times 3 \\ = 28.26 {cm}^{2} \\ [/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
If c = d and b ≠ 0, then c∕b = d∕b represents the property of equality. Question 4 options: A) division B) multiplication C) addition D) subtraction
Answers
Answer:
Property of equality division
Step-by-step explanation:
Given
c = d
b ≠ 0 then c∕b = d∕b
Required
State the property used
From list of options a through d, only option A best fits the description.
This is so because property of equality division is such that
given two variables c and d where c = d
[tex]\frac{c}{b} = \frac{d}{b}[/tex]
Provided that b ≠ 0
Take for instance;
b = 2; c = 8 and d = 8;
This implies that
[tex]c = d[/tex]
[tex]8 = 8[/tex]
Divide both sides by 2 (assumed value of b)
[tex]\frac{8}{2} = \frac{8}{2}[/tex]
[tex]4 = 4[/tex]
The steps shown below were used to find an expression equivalent to 2/3(3x– 12y) + 2x.
Step 1: ?
Step 2: 4x - 8y
Step 3: 4(x-2y)
Which expression could be used as Step 1?
(A) 2/3(6x - 12y)
(B) 2x -8y + 2x
(C) 2x - 12y + 2x
(D) 3(x - 2y) + 2x
Answers
Answer:
B
Step-by-step explanation:
divide equatio with 2/3
Determine whether the two functions are inverses.
f(x) = 5x+4 and g(x)=x-4/5
The two functions are inverses.
The two functions are not inverses.
Answers
Answer:
The two functions are inverses.
Step-by-step explanation:
We are supposed to find whether the two functions are inverses.
[tex]f(x)=5x+4[/tex]
[tex]g(x)=\frac{x-4}{5}[/tex]
To find the inverse of f(x)
y = 5x+4
y-4=5x
[tex]\frac{y-4}{5}=x[/tex]
Replace x with y and y with x
So, [tex]\frac{x-4}{5}=y[/tex]
So, [tex]\frac{x-4}{5}=g(x)[/tex]
So,The two functions are inverses.
Practice
1. Which kind of function best models the data in the table? Write
an equation to model the data.
A quadratic; y = -x2
ху
0
2
B
1
quadraticy
2
1
1.5
1
с
N
linear, y
HI
2
3
0.5
4
0
D
1
linear, y
=
2x+2
Answers
Answer: Linear; y=-x - 1
Step-by-step explanation: The slope is negative since it’s decreasing. So it’s not the first equation. It’s not a quadratic equation because there is no forming U shape for this data. It’s not a exponential function because the slope is not 3 and a exponential function is in the form y=a(b)^x.
If a linear function y = 2x + 3 moves down 4 units, and then moves right 4 units to changes into a new function y = ax + b, find a and b
Answers
Answer:
a= 2 b=-9
Step-by-step explanation:
Please refer to the picture attached.
You can clarify the answer by substituting random points like (0,0) and transformed point
E. G. (0, - 4) in step 1 and (4,0) in step 2 into the original equation and transformed equation for checking.
ILL GIVE A BRAINLIEST !!!
The foci and the vertices of the hyperbola are labeled.
Which equation represents the hyperbola shown in the graph?
Answers
Answer:
The top one, that is the hyperbole.
The equation of hyperbola is [tex]\frac{(y-5)^{2} }{9 } -\frac{(x-3)^{2} }{16 } = 1[/tex]
What is a hyperbola?A plane curve generated by a point so moving that the difference of the distances from two fixed points is a constant : a curve formed by the intersection of a double right circular cone with a plane that cuts both halves of the cone.
What is standard hyperbola equations?• If the foci lie on the x-axis, the standard form of a hyperbola can be given as,
[tex]\frac{(x-h)^{2} }{a^{2} } - \frac{(y-k)^{2} }{b^{2} } = 1[/tex]
• If the foci lie on the y-axis, the standard form of the hyperbola is given as,
[tex]\frac{(y-k)^{2} }{a^{2} } -\frac{(x-h)^{2} }{b^{2} } = 1[/tex]
• Coordinates of the center: (h, k).
• Coordinates of vertices: (h+a, k) and (h - a,k)
• Co-vertices correspond to b, the ” minor semi-axis length”, and coordinates of co-vertices: (h,k+b) and (h,k-b).
• Foci have coordinates (h+c,k) and (h-c,k). The value of c is given as, c2 = a2 + b2.
• Slopes of asymptotes: y = ±(b/a)x.
According to the question
Foci = (3,7) (3,-3)
Vertices = (3,5) (3,-1)
As per coordinates and graph the hyperbola is vertical so x will be constant y varies
Distance between foci = 2c (where c is center)
10 = 2c
C = 5
Therefore Centre (h,k) = (3,5)
Distance between vertices = 2a
2a= 6
a = 3
The value of c is
[tex]c^{2} = a^{2} + b^{2}[/tex]
25 = 9 + [tex]b^{2}[/tex]
[tex]b^{2}[/tex] = 16
Now as per our equation
h=3 , k=5 , [tex]a^{2}[/tex] = 9, [tex]b^{2}[/tex] = 16
[tex]\frac{(y-k)^{2} }{a^{2} } -\frac{(x-h)^{2} }{b^{2} } = 1[/tex]
[tex]\frac{(y-5)^{2} }{9 } -\frac{(x-3)^{2} }{16 } = 1[/tex]
Hence, equation of hyperbola = [tex]\frac{(y-5)^{2} }{9 } -\frac{(x-3)^{2} }{16 } = 1[/tex]
To know more about hyperbola here :
https://brainly.com/question/15697124
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Lobachevsky's Negation created spherical geometry.
O A. True
O B. False
Answers
Answer:
True
Step-by-step explanation:
Lobachevsky's Negation created spherical geometry.
● A. True
O B. False
What is the equation of the line passing through the points (-2, 3) and (1,4)?
A. y=1/3x+13/3
B. y=1/3x+11/3
C. y=1/3x+4
D. y= 3x + 1
Answers
Answer:
B
Step-by-step explanation:
U find the gradient of the line by subtracting the y intercepts and the x intercepts
4-3/1--2=1/3
Y-3/x--2=1/3
3(y-3)=x+2
3y-9=x+2
3y=x+2+9
3y=x+11
Y=x/3 + 11/3
You deposit $2000 in a savings account at Hometown Bank, which has a rate of 6%.
Find the amount, A, of money in the account after 3 years subject to interest
compounded once a year.
b) Find the interest.
Answers
Answer:
Amount 2382.03
Interest = 382.03
Step-by-step explanation:
A = P (1+r/n)^nt
Kate is going to the fair with three of her friends. It will cost $5.00 to get in and an additional $2 per ride. Create an equation to represent the cost for the whole group and then use the distributive property to expand the expression and solve the problem.
Answers
The cost for the whole group using distributive property to expand the expression and solve the problem is $28
How to write and solve equation?Cost of getting in per person = $5Cost per ride per person = $2Number of people including Kate = 4Total cost of the group = Number of people including Kate(Cost of getting in per person) + (Number of people including Kate(Cost per ride per person)
= 4(5) + 4(2)
= 20 + 8
= $28
Learn more about equation:
https://brainly.com/question/1214333
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For the word problem below, write the steps to solve the problem
3) The base of a pyramid-shaped fish tank is a square. The side length of the square
is 24 feet. The height is 9 feet. Find the amount of water needed to fill the tank.
Volume =
Write the formula
Substitute the numbers you know
Solve the math (remember order of operations)
Answers
Answer:
Volume= base*height*length; Volume= 24*9*24; Volume= 5,184 square feet
Step-by-step explanation:
The lenghth of the square is 24 feet which makes the base 24 since it is a square. So, you just have to multiply 24*24*9 to get the total volume.
In an arithmetic sequence the sum of the first six odd-numbered terms (a1,a3,a5,a7,a9 and a11) is 60. find the sum of the first eleven terms.
Answers
Answer:
Im so sorry!
Step-by-step explanation:
>:(
which letter best shows the location of 9/7?
A: A
B: B
C: C
D: D
i’ll give brainliest and 10 points answer fasttttt
Answers
Answer:C
Step-by-step explanation:
URGENT help me please
Answers
Answer:
i have the same thing that im confused on
Step-by-step explanation:
confused help-
Which number has the greatest value? A. 9.3 B. 9.13 C. 9.31 D. 9.30
Answers
Answer:
9.31
Step-by-step explanation:
Answer:
C. 9.31
Step-by-step explanation:
9.31 is larger than 9.30 and the rest of the decimals. Should be simple to understand.
wiil mark bianleast plz plz hlpe
Triangles GHI and JKL are similar.
What is the length of ?
12 ft
18 ft
21 ft
27 ft
Answers
Answer:
18 since 12 x 2 = 24 so 9 x 2 = 18
Step-by-step explanation:
Answer:
18 ft
Step-by-step explanation:
12 * 2 = 24
SO
9 * 2 = 18
guys please help me with this question before it gets deleted by 30 year olds .
Answers
Answer:
i don't know okkkkkk
Step-by-step explanation:
which linear inequality is represented by the graph?
Answers
Answer:
[tex]y>3x+ 2[/tex]
Step-by-step explanation:
PLEASE HELP WILL MARK BRAINLIEST !!!!!!!!!!!
Answers
Answer:
Josie and Emmanuel are the same.
Step-by-step explanation:
By pluggin the numbers given into the equations, you find that Josie and Emmanuel are 5/8 while Maria is 120.
Answer:
josie and emmanuel
Step-by-step explanation:
Joylin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. She knows that the total cost to download 3 videos was $12. Her work to find the equation is shown below. Joylin’s Work Step 1 k = StartFraction 3 over 12 EndFraction = 0.25 Step 2 y = 0.25 x Where did Joylin make her first error Joylin divided 3 and 12 instead of multiplying the two numbers. Joylin computed the decimal equivalent of StartFraction 3 over 12 EndFraction incorrectly. Joylin used 0.25 as the coefficient of x instead of a product of x and y. Joylin switched the numerator and the denominator when she found k.
Answers
Answer:
45/84
Step-by-step explanation:
Answer:
its A
Step-by-step explanation:
Which statement is correct for the point A(x,y)
Answers
Step-by-step explanation:
Near (-4.4,0)
.....
.....
Answer:
-4.4 , 0 = x , y
Step-by-step explanation:
The answer is of where the coordinates are.
As you didn't say the statements in your question.
We realize x is 4.4 times the size of y as y is '0' so this means the negative value for x is 4.4 smaller than y.