Answer:
x = 1/2
y = -1/3
Step-by-step explanation:
10x - 9y = 8 (Multiply by 3)
15x + 21y = 0.5 (Multiply by -2)
30x - 27y = 24
-30x - 42y = -1
-69y = 23
y = -1/3
10x - 9y = 8
10x - 9(-1/3) = 8
10x + 3 = 8
10x = 5
x = 1/2
1. Explain why it makes sense to call the following expression a “perfect
square." *
x2 + 20x + 100
Answer:
because all sides are equal
The expression is a perfect square of (x+10)².
What is perfect square?A perfect square is a number that can be expressed as the product of an integer by itself or as the second exponent of an integer.
For example, 25 is a perfect square because it is the product of integer 5 by itself, 5 × 5 = 25.
Given that the expression, x² + 20x + 100,
So, writing the expression as expanded form,
x·x + 2·10·x + 10·10
x² + 2·10·x + 10²
We see it is in the form of a² + 2ab + b²,
We know that, a² + 2ab + b² = (a+b)²
So,
x² + 2·10·x + 10² = (x+10)²
Hence the expression is a perfect square of (x+10)².
Learn more about perfect square click;
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Mary y Frank estan explorando diferentes eventos y registrando la probabilidad de cada
evento. Estan usando diferentes situaciones cada vez que involucran canicas de
diferentes colores.
1) Maty y Frank tenen dos bolsas frente a ellos. La bolsa de Mary tiene 4 canicas azul
amanilo rojo y verde la bolsa de Frank tiene 3 canicas morado naranja y rosa Recogerar
de su borso al mismo tiempo. Cuál es la probabilidad de que Mary seleccione rojo de su bolso
Frank seleccione violeta de su bolso? Utilice un espacio de muestra para
Probabilidad; la probabilidad os Mary y Frank combinan las canicas en una bolsa para
Bacer un expemento en el que toman wacanica de una bolsa y lanzan una moneda. En la
Suste tabla 1 registrado o resultados de cada evento cuales a probabilidad
experimental de la moneda agen cruz en una canica amarilla Muestrato
seberat
Answer:
250000
Step-by-step explanain
i jut d this hquaestions
the figure below is made of unit cubes
Answer:
Ok cool can i see the figure?
I’m begging for someone to help me with this so bad it about in order largest to small et) (NO LINKS) (NO LYING) IT MUST BE THa PART 2
Answer:
1) Yes
2) Yes
3) Yes
4) No
5) Yes
6) Yes
7) Yes
8) Yes
9) Yes
10) No
Step-by-step explanation:
The triangle inequality theorem states that the length of any 2 sides of a triangle must be greater than the third side of that same triangle.
1) By Inspection, 2 + 10 > 11.
Thus, this set can be lengths of the sides of a triangle
2) 7 + 9 > 10
Yes, this set can be lengths of the sides of a triangle
3) 11 + 7 > 12
Yes, this set can be lengths of the sides of a triangle
4) 11 + 7 < 20
No, this set cannot be lengths of the sides of a triangle
5) 10 + 8 > 13
Yes, this set can be lengths of the sides of a triangle
6) 7 + 2 > 7
Yes, this set can be lengths of the sides of a triangle
7) 5 + 12 > 13
Yes, this set can be lengths of the sides of a triangle
8) 13 + 12 > 18
Yes, this set can be lengths of the sides of a triangle
9) 11 + 3 > 13
Yes, this set can be lengths of the sides of a triangle
10) 12 + 3 < 19
No, this set cannot be lengths of the sides of a triangle
can someone help me
Answer:
Step-by-step explanation:
The base is 4 and the length is 8 b x l 8×4 =32
What is the measure of angel C?
Enter your answer as a decimal. Round only your final answer to the nearest hundredth.
m
Answer:
36.87
Step-by-step explanation:
We can use SOH CAH TOA (sine, cosine, and tangent) to solve this problem.
SOH- means Opposite over Hypotenuse
CAH- means Adjacent over Hypotenuse
TOA- mean Opposite over Adjacent
U can use either one of these to solve this problem, I will be using sine SOH (sine).
sine C = 3/5
sine ^-1 3 divided by 5 =36.8698
So, angle C = 36.8698 and rounded to the nearest hundred is 36.87
what is 4x5 gc ft kg gn hi dj cm cjj kg you too te you tu
The midpoint of a segment is 19,5) and one of the endpoints is (13,81 What are the coordinates of the otherendpoint
Answer:
[tex](25,-71)[/tex]
Step-by-step explanation:
Given
[tex](x,y) = (19,5)[/tex] --- midpoint
[tex](x_1,y_1) = (13,81)[/tex] --- end 1
Required
The other endpoint
Using midpoint formula, we have:
[tex](x,y) = 0.5 * [x_1 + x_2, y_1 + y_2][/tex]
So, we have:
[tex](19,5) = 0.5 * [13 + x_2, 81 + y_2][/tex]
Multiply both sides by 2
[tex]2 * (19,5) = 2 * 0.5 * [13 + x_2, 81 + y_2][/tex]
[tex](38,10) = [13 + x_2, 81 + y_2][/tex]
By comparison:
[tex]x_2 + 13 = 38[/tex] and [tex]y_2 + 81 = 10[/tex]
So:
[tex]x_2 = 38 - 13[/tex]
[tex]x_2 = 25[/tex]
and
[tex]y_2 = 10 - 81[/tex]
[tex]y_2 = - 71[/tex]
Henc, the other endpoint is:
[tex](25,-71)[/tex]
The Smith family is building a deck that is 200 square feet in area. What are the
possible lengths and widths the deck could have?
Please Help POINTS: 15 (look at the screenshot below)
What is the ratio of the number of medals won by Jacob to the number of medals won by Antonio?
Describe the figure that is created with the points ( -2, -3) ( - 2, 5, (1, -3), and (1, 5)
Answer:
Hi! The answer to your question is Rectangle
Step-by-step explanation:
↗✧*☆*: .｡..｡.:*☆♪↗✧*☆*: .｡..｡.:*☆♪
☆Brainliest is greatly appreciated!☆
Hope this helps!!
Stay Safe!!!
- Brooklynn Deka
On a tree, the trunk splits into 5 branches. Then each branch splits into 5 smaller branches, and each of those branches splits into 5 very thin branches. How many very thin branches are on the tree?
I need how many very thin in normal form and in EXPONENT form
Answer:
it is 5 to the 3rd power or 125. We start with 5 branches that slit into 5 more so 5x5=25 then they split into 5 more so 25x5= 125
Pls help mark barinlist
Answer:
okay sure Barnyst comingup
Step-by-step explanation:
THE ANSWER CHOICE FOR D. 15 BUT HELP PLEASE
Answer:
60
Step-by-step explanation:
It takes 36 nails to make 4 chairs.
How many nails are needed to make 9 chairs?
A. 72
B. 81
O c. 144
O D. 162
O E. 324
Answer:
36/4=9 so each chair takes 9 nails so 9*9=81
B:81
server F, working 7 hours offers to join the group of five servers sharing their workload. If server F joins will the mean number of hours worked increase or decrease
Which of the following is a non-rigid transformation?
Answer:
c
Step-by-step explanation:
Answer:
B: Dilation
Step-by-step explanation:
Translations, rotations, and reflections are all rigid transformations because the image isn't altered. This makes a dilation a non-rigid transformation because the image is getting larger or smaller.
A mountain climber started at 150 feet below sea level. What would he need to climb to so that his starting spot and his ending spot were opposites?
Answer:
Your answer is 24.333.
Step-by-step explanation:
..If you round this, it would be 24 or 24.3. you get this answer by doing 3650 divided by 150.
Identify the volume of a regular triangular pyramid with base edge length 14 ft and height 9 ft.
Answer:
The volume is 588 ft³
Step-by-step explanation:
[tex]v = a {}^{2} \frac{h}{3} = 14 {}^{2} \times \frac{9}{3} = 588[/tex]
Answer:
254.6 ft3 F
Step-by-step explanation:
To find the volume of the pyramid, first calculate the area of the base.
As the pyramid is the regular triangular pyramid, the base is an equilateral triangle.
To find the area of the equilateral triangle, calculate the length of the height.
Since the triangle is equilateral, each angle in the triangle equals 60°.
The height forms a 30°- 60°- 90° triangle. One leg of this triangle is equal to half of the side of the large triangle, or 7 ft. The other leg of the triangle is equal to 73‾√ ft by the 30°- 60°- 90° Triangle Theorem.
Therefore, the length of the height of the triangle is 73‾√ ft.
To find the area of the base of the pyramid, B, use the formula for the area of a triangle, B=12bh.
Substitute 14 for b and 73‾√ for h.
B=12⋅14⋅73‾√
Simplify.
B=493‾√ ft2
To find the volume of the pyramid, use the formula for the volume of a pyramid, V=13Bh.
Substitute 493‾√ for B and 9 for h.
V=13⋅493‾√⋅9
Simplify.
V=1473‾√
Use a calculator to approximate.
V≈254.6 ft3
Therefore, the volume of the regular triangular pyramid is about 254.6 ft3.
Which value from the set {4,6,8,10} will make p+p+p+p=24 true?
A.4
B.6
C.8
D.10
Answer:
I think B.6 is the answer
the distance between two points is 9 and point one is located at (-2, 2), what could be the possible coordinates of point two?
(2, 9)
(7, 2)
(11, 2)
(2, 11) HELP NOW
NO LINKS PPLS I WILL GIVE THE CROWN THING ITS WORTH 50 points
Which test would we use to show a relationship between one population and two catergorical variables ?
Answer:
independence I think
Answer:
Arithmetic
Arithmetic calculations
* : Multiplication
/ : Division
Integer division truncates remainder
7 / 5 evaluates to 1
% : Modulus operator returns remainder
7 % 5 evaluates to 2
4÷2(4-6+3)×2 what is the answer
Answer:
the answer is 4
Step-by-step explanation:
Answer: 4
Step-by-step explanation:
need help guys givin brainliest
Answer:
4
Step-by-step explanation:
The scale factor from 3m to 9m is ×3
So do 12 / 3 = 4
Complete the table for the equation you wrote in Exercise 6.
Answer:
You know you forgot to put a pictures I would recommend to put a picture to get desired answers!
Step-by-step explanation:
Answer:7,10,13,16
:))))
does anyone know this
Answer: 761 yd
split the figure into different pieces to make it easier
(23 x 7) + (40 x 15)
161 + 600
761
hope this helped :)
Answer:
761 yd ^3
Step-by-step explanation:
This shape has all identical faces and a surface area of 240 square meters. What is the area of each face?
A 120
B 80
C 60
D 30
Answer: C 60
Step-by-step explanation:
240 is the square meter, and if each face is the same, u divide 240 by 4 which equals 60
HELP PLEASE ILL GIVE BRAINLIEST
Answer:
The answer is H.) (A, B, C)
Step-by-step explanation:
3 is a whole number and a natural number and 4/3 is a rational number
Find the X and Y
Help ASAP please!!!
Factor the quadratic expression completely.
-7x^2-24x-9
Answer:
(7x+3)(-x-3)
Step-by-step explanation:
-7x²-24x-9 would be the same thing as (7x+3)(-x-3) because 7x*-x=-7x², +3*-3=-9, and 7x*-3 - 3x = -24x