Answer:
Assuming 1,6 is y2 and x2, the answer is 1,-2 = -0.5
Step-by-step explanation:
1. Grab 1,6 as it is the second point and invert it into 6,1
2. Invert the first point into 5,3.
3. Subtract (6 - 5) / (1 - 3). The result is 1/-2.
4. Divide 1 by -2.
Answer should be -0.5
75 into the ratio of 4:5
Answer:
4.7
Step-by-step explanation:
20(x+9)=140
solve for x
Answer:
x = -2
Step-by-step explanation:
20(x+9)=140
divide both sides by 20
x + 9 = 7
move the 9
x = 7 - 9
x = -2
Answer:
x = -2
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityStep-by-step explanation:
Step 1: Define
20(x + 9) = 140
Step 2: Solve for x
Divide 20 on both sides: x + 9 = 7Subtract 9 on both sides: x = -2Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 20(-2 + 9) = 140(Parenthesis) Add: 20(7) = 140Multiply: 140 = 140Here we see that 140 does indeed equal 140.
∴ x = -2 is the solution to the equation.
What is the x-intercept of the graph shown below?
A (0, -6)
B. (-6,0)
C.(0,3)
D.(3,0)
Answer:
It's C (0,3)
Step-by-step explanation:
Answer:
(3,0) D
Step-by-step explanation:
x intercept is when the line meets x axis. It meets it at 3
In (x,y) form it is (3,0)
Quadrilateral QRST is a parallelogram. Determine the measure of QRS
Answer:
x=9
Step-by-step explanation:
In a parallelogram, opposite angles are equal.
So that means
2(3x - 4) = x + 37
6x - 8 = x + 37
5x = 45
x = 9
Answer:
x+37=2(3x-4) opposite angle of the parallelogram are equal
x+37=6x-8
37+8=6x-x
45=5x
x=9
the measure of QRS=2(3×9-4)=46
4. The cube root parent function is reflected across the x-axis, vertically stretched by a factor of 3 then
translated 8 units down. Write an equation that could represent this function.
Using translation concepts, it is found that the equation is given by:
[tex]y = -3\sqrt[3]{x} - 8[/tex]
What is a translation?A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.
The parent cube root function is given by:
[tex]y = \sqrt[3]{x}[/tex]
It was reflected across the x-axis, that is, multiplied by -1, hence:
[tex]y = -\sqrt[3]{x}[/tex]
It was vertically stretched by a factor of 3, hence:
[tex]y = -3\sqrt[3]{x}[/tex]
Then, it was translated 8 units down, hence:
[tex]y = -3\sqrt[3]{x} - 8[/tex]
More can be learned about translation concepts at https://brainly.com/question/4521517
What do angles in a circle and trinagle add up too?
Answer:
180° and 360°
Step-by-step explanation:
triangle = 180°
circle = 360°
hi! I do not understand exponents very well
Answer:
B
Step-by-step explanation:
4*4*4=64
(x^5)*3=x^15
y^3
When a stepladder is placed as shown, is it possible for the lower ends of the ladder to be 12 feet apart? Explain
Answer:
No, with the guides in between the two ladders, it is not possible for the lower ends of the ladder to be up to 12 feet apart
Step-by-step explanation:
The given parameters are;
The length of two sides of the step ladder = 12 feet
The maximum value allowable for the included angle between the two 12 feet ladders = 58°
Therefore, the maximum value of the third side facing the included angle is given as follows;
let "a" represent the maximum value of the third side formed by the distance apart of the lower end of the ladder, by cosine rule, we have;
a² = 12² + 12² - 2 × 12 × 12 × cos(58°) = 135.383251901
∴ a = √(12² + 12² - 2 × 12 × 12 × cos(58°)) ≈ 11.64
The maximum value of the third side formed by the distance apart of the lower end of the ladder = a ≈ 11.64 feet < 12 feet
Therefore, it is not possible for the lower ends of the ladder to be up to 12 feet apart.
GCSE 995381
IGCSE PASTE
NOT TO
SCALE
Past Papers
8 cm
30°
A
OAB is the sector of a circle, centre 0, with radius 8 cm and sector angle 30°.
BC is perpendicular to OA.
Calculate the area of the region shaded on the diagram.
Answer:
[tex]2.9 cm^2[/tex]
Step-by-step explanation:
Given,
Angle of sector = 30°
Radius of circle, r = 8 cm
Area of the shaded region, A =?
The diagram is attached below.
Now,
Area of shaded region = Area of sector - Area of triangle
Area of triangle = [tex]\frac{1}{2}\times base \times height[/tex]
We know that,
[tex]\sin \theta = \dfrac{P}{H}[/tex]
[tex]\sin 30^\circ= \dfrac{P}{8}[/tex]
[tex]P = \dfrac{8}{2}[/tex]
[tex]P = 4\ cm[/tex]
And
[tex]\cos \theta =\dfrac{B}{H}[/tex]
[tex]\cos 30^\circ = \dfrac{B}{8}[/tex]
[tex]B = \dfrac{8\times \sqrt{3}}{2}[/tex]
[tex]B = 4\sqrt 3[/tex]
Area of sector = [tex]\dfrac{\theta}{360^\circ}\times \pi r^2[/tex]
Area of sector = [tex]\dfrac{30^\circ}{360^\circ}\times \pi \times 8^2[/tex]
= 16.75 cm^2
Area of triangle = [tex]\dfrac{1}{2} \times 4\sqrt 3 \times 4[/tex]
= 13.85 cm^2
Area of shaded region = 16.75 - 13.85
= [tex]2.9 cm^2[/tex]
Find the solution to the system of equations.
A. (1, 4)
B. (4, 1)
C. (0, 3)
D. (4, -1)
Thank you!´･ᴗ･`
Four girls and eight boys are running for president of Vice President of the student council find the probability that two boys are elected?
Answer:
56/132
Step-by-step explanation:
First round: 8/12
Second round: 7/11, because you can't have the same boy twice.
Multiply them together to get 56/132
Answer:
8/12? Or (simplified) 2/3
Step-by-step explanation:
12 people 8 boys
8/12? Or (simplified) 2/3
Slove using substitution
Y= 2x + 1
3x + y = 11 Step by step explanation
Answer: x = 2 and y = 5
Step-by-step explanation:
y = 2x + 1
3x + y = 11
Substitute
3x + (2x + 1) = 11
5x + 1 = 11
Subtract both sides by 1
5x = 10
Divide both sides by 5
x = 2
y = 2x + 1
Substitute
y = 2 (2) + 1
y = 4 + 1
y = 5
Help me please
Mathematics 15 points
Which of the following is a solution to
the linear function 3y - 2x = -12?
A (1,0)
(-9,-10)
B (6,3)
D (-1,-6)
8
PLEASE HELP ME
Explain how you know these two figures are similar.
Answer:
Both figures are rhombuses, they have the same angle degrees, one is just slanted more and smaller than the other.
Evaluate (−2)6
Enter your answer in the box.
Answer:
-12
Step-by-step explanation:
two times negative six is basically -(2x6) which is -12
I hope this helped, please give brainliest if this is correct! Thank you!
Someone please help me by tonight I'm trying not to fail math. Also I will Brainliest if you help me get the right answer please just help me.
1. What is the product of the complex numbers (3+i) and (3-i)?
A. 10-6i
B.9-i
C.8
D.10
2. Which expression Represents (-3-2i)-(5+i)?
A.-8-i
B.-8-3i
C.2-i
D.2-3i
3. What is the sum of the complex numbers (12-5i) and (-3+4i)?
A. 15-9i
B.9-i
C.9-9i
D.-16+63i
4. Which expression is equivalent to (6-2i)(2-3i)?
A. 6+22i
B. 18+22i
C. 6-22i
D. 18-22i
5. Simplify: (2+6i)-(3-5i)-(5-3i)
A. -4+16i
B. -6+14i
C. -6-2i
D. -4-4i
6. Which expression below is equivalent to 4i(12-7i)
A. -28+48i
B. -48+28i
C. 48+28i
D. 28+48i
7. Add √ -4+√-49
A. -9i
B. 5+I
C. 5-i
D. 9i
Answer:
1. answer is D
2. Answer is D
3.Answer is B
4. Answer is C
5. Answer is B
6. Answer is D
7.Answer is D
Step-by-step explanation:
Please help im lost and dont understand this
Answer:
multipy them
Step-by-step explanation:
Tony reads 28 chapters of a book in 7 hours.
What is his rate in chapters per hour?

Answer:
Step-by-step explanation:
4 chapters every hour
there is a qs
what do I pick, I'm confused
Answer:
I think answer is 133°
Step-by-step explanation:
47°+X=180°X=180°-47°X=133°Kathy needs money for a trip to Europe if she has US$300 in the bank but wants to withdraw half of it In British pounds and half of it into euros how many more euros and times with Havasu 1 pound equals 1.6 for US deep and one euro equals 1.3 to USD and round to the nearest whole
Answer: She has 21.63 more euros than pounds and has 1.23 times more euros than pounds.
Step-by-step explanation:
She has US$300, and she will withdraw half of it on pounds, and half of it in euros.
(half of US$300 is US$150)
We know that:
1 pound = US$1.6
(1 pound/US$1.6) = 1
Then US$150 = US$150*(1 pound/US$1.6) = (150/1.6) pounds = 93.75 pounds.
And we also know that:
1 euro = US$ 1.3
then:
(1 euro/US$ 1.3) = 1
This means that:
US$150 = US$150*(1 euro/US$ 1.3) = (150/1.3) euros = 115.38 euros.
This means that:
115.38 - 93.75 = 21.63
This means that she has 21.63 more euros than pounds.
and:
115.38/93.75 = 1.23
She has 1.23 times more euros than pounds.
a drama and 21 students attended a play.the total cost of the tickets was 527.78,if each ticket cost the same, what was the price of one ticket?
SOLVE PLEASE
Answer:
25.13
Step-by-step explanation:
527.78/21=25.13 rounded
A school is building a rectangular stage for its chorus. The stage must have a width of 4 feet. The area of the stage must be at most 24 square feet. (These are rules of the local fire department.) Write an inequality that describes the possible lengths (in feet) of the stage.
Answer: Length ≥ 6 feet
Step-by-step explanation:
The area of a rectangle= length × width
In this case, the width is 4 feet and the area of the stage must be at most 24 square feet.
The inequality that describes the possible lengths (in feet) of the stage would be:
Length × Width ≥ 24
Length × 4 ≥ 24
Length ≥ 24/4
Length ≥ 6
Therefore, the length must be at most 6 feet.
X/3 = 8/y I need to know x and y
Answer:
y= 8/3
Step-by-step explanation:
. A rectangular sheet of dimensions 33 cm x 24 cm is rolled into a cylinder so that the smaller side becomes the height of the cylinder. Find the volume of the cylinder so formed.
Answer:
[tex]V=2078.16\ cm^3[/tex]
Step-by-step explanation:
A rectangular sheet of dimensions 33 cm x 24 cm is rolled into a cylinder so that the smaller side becomes the height of the cylinder.
h = 24 cm
and the circumference of the cylinder, C = 33 cm
[tex]2\pi r=33\\\\r=\dfrac{33}{2\pi}\\\\r=5.25\ cm[/tex]
We need to find the volume of the cylinder so formed. The formula for the cylinder is given by :
[tex]V=\pi r^2h\\\\=\pi \times 5.25^2\times 24\\\\=2078.16\ cm^3[/tex]
So, the volume of the cylinder so formed is [tex]2078.16\ cm^3[/tex].
solve for x.
this is for the k12 test.
Answer:
d
Step-by-step explanation:
Answer:
option D
Step-by-step explanation:
[tex]\sqrt{10x+50}=x+5\\\\(\sqrt{10x+50})^2=(x+5)^2\\\\10x+50=x^2+10x+25\\\\0=x^2+10x-10x+25-50\\\\0=x^2-25\\\\0=(x-5)(x+5)\\\\x=5\\\\x=-5[/tex]
now trying for the original equation
[tex]\sqrt{10(5)+50}=5+5\\\\\sqrt{50+50}=10\\\\\sqrt{100}=10\\\\10=10[/tex]
and
[tex]\sqrt{10(-5)+50}=-5+5\\\\\sqrt{-50+50}=0\\\\\sqrt{0}=0\\\\0=0[/tex]
so it's option D
You and five friends go to legoland and you are charged $576 for admission. How many much did each ticket cost?
Answer:
96
Step-by-step explanation:
576/6
96
Answer:
$96 for each ticket
Step-by-step explanation:
$576 / 6 = $96
Determine the 8th term in the sequence defined by: A_n = 3 * 2^n-1
Answer:
384 but see below.
Step-by-step explanation:
Remark
A_n = 3*2^(n - 1) I will assume that's what you mean. I'll give the answer for A_n = 3*2^n - 1 as well.
Solution
n = 8
A_n = 3 *2^(8 - 1)
A_8 = 3*2^7
A_8 = 3* 128
A_8 = 384
If you mean A_n = 3*2^n - 1
Then you would get
A_n =3 * 2^8 - 1
A_8 = 3 * 256 - 1
A_8 = 768 - 1
A_8 = 767
The point of intersection of a system of equations is (3,4). Which of the following could represent one of the equations in the system of equations?
Select one:
A. 2x+3y=15
B. x+y=8
C. −2x+6y=18
D. −4x−y=−8
Answer:
its A or B i think
Step-by-step explanation:
What is this answer helpppppppppo
Answer: the answer is 73.5 but it is not here so I think 89 is the
Step-by-step explanation:
Answer:
The answer is 149
Step-by-step explanation:
So 2 oranges added up is 56 which is basically
x+x=56
2x=56
56/2=28
Each orange is worth 28
The 2 triangles multiplied are 81 which is
x*x=81
x^2=81
√81=9
Each watermelon Is worth 9
The 3 stars added up are
x+x+x=15
3x=15
15/3=5
Each star is worth 5
So the final equation if you plug in what we know
9+28*5
So orders of operations, (Parenthesis, exponents, etc.)
So multiplication is first
28*5=140
And add
140+9=149
So final answer 149