Answers
Answer:
x=−8 and y=−4
Step-by-step explanation:
8x−17y=4;−8x+15y=4
add eqn1 and 2
to eliminate x
you will get y=-4
put it zin eqn 1
x=-8
Related Questions
A sector of a circle has an arc length of π cm and a central angle of π6 radians. What is the area of the sector?
A. 5π cm²
B. 2π cm²
C. 3π cm²
D. π cm²
Answers
Answer:
C
Step-by-step explanation:
The Area of sector is π cm². so option D is correct.
How to find the area of a sector of a circle?The sector of a circle is like a slice of a circular pizza.
[tex]A = \dfrac{x \times \pi r^2}{360} \: \rm unit^2 area[/tex]
Mathematically π radians = 180 degrees
thus, π /6 radians = 180/6 = 30 degrees
The formula for the length of an arc is;
Ф/360 x 2πr
where Ф, is 30 degrees
And the arc length is pi
so we have
30/360 x 2πr = π
30/360 x 2r = 1
60r = 360
r = 360/60
r = 6 cm
Now the area of a sector is;
Ф/360 x πr^2
30/360 x π36
= π cm^2
Learn more about area;
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please help lol im confused i dont know why but please help
Answers
Answer:
No, but if it was how many studens school like math then yes
in Step-by-step explanation:
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answers
Answer:
Step-by-step explanation:
B looks good
what is an equation of the line that passes through the points (4, -1) and (8, -7)
Answers
Answer:
y=5-2x
Step-by-step explanation:
PLEASE HELP
A mouse is trapped in a maze. To find his way out, he walks 15 m, makes a 90° left turn, walks 8 m, makes another 90° left turn, and walks 10 m. What is the magnitude of the resultant vector?
Answers
v = <2, 7>
||v||2 = 22 + 72
The height of a pyramid created by 4 diagonals inside a cube is 6 units. What is the volume of the pyramid? Choose the expression that can help determine this.
A) [tex]\frac{1}{3}[/tex](6⋅6⋅6)
B) [tex]\frac{1}{6}[/tex](6⋅6⋅6)
C) [tex]\frac{1}{6}[/tex](12⋅12⋅12)
D) [tex]\frac{1}{3}[/tex](12⋅12⋅12)
Answers
Answer:
answer a
Step-by-step explanation:
draw a line representing the "rise" and a line representing the "run" of the line. state the slope of the line in the simplest form.
Answers
Answer:
-2x
Step-by-step explanation:
Rise over run,
This line goes up 4 (It goes up so it's positive).
and it goes to the left -2 times (Since it's left it's negative).
Slope: 4/-2 or -2/1 which is -2x
In the following equations, what would you multiply the second equation to
eliminate the "y"? *(PLEASE I WILL GIVE BRAINLIEST!!)
3x + y = 20
x + y = 12
1) -1
2) 1
3) -3
4) 3
Answers
Answer:
-1
Step-by-step explanation:
what is the perimeter of the shapes
Answers
Answer:
shape 1- 89.4 inches
shape 2- 29cm
Step-by-step explanation:
the perimeter is the sum of all numbers around the rim of the shape.
I need an answer fast!
Answers
Answer:
A
Step-by-step explanation:
3 for the side and one at the bottom
Answer:b
Step-by-step explanation:
I'm not sure about this one but, I think B because the net looks like it had 3 sides.
Roxanne baked 2 cakes in 3 hours,
3 cakes in 4 hours, and 4 cakes in 5
hours. Determine whether the
number of cakes baked is
proportional to the number of
hours.
Answers
Melissa invests $700 at 4% simple interest per year. How much interest will she earn in 3
years?
Answers
Answer:
Step-by-step explanation:
700(.04)(3)= $84
A paper airplane is thrown from the roof of a house and travels 7 feet through the air. The paper airplane's flight path makes a 30∘angle with the ground. How far from the base of the house does the paper airplane land on the ground?
Group of answer choices
3.5 feet from the house
7.12 feet from the house
4.04 feet from the house
6.06 feet from the house
Answers
Solve the equation.
x+2y=0
Answers
Answer: y=-(x/2)
Graph it to figure out.
Write a recursive sequence that represents the sequence defined by the
following explicit formula:
An = 1 - 5(n − 1)
Answers
Answer:
[tex]a_1=1\\a_n=a_{n-1}-5[/tex]
Step-by-step explanation:
a₁ = 1 - 5(1 - 1) = 1 - 5·0 = 1
a₂ = 1 - 5(2 - 1) = 1 - 5·1 = 1 - 5 = a₁ - 5
a₃ = 1 - 5(3 - 1) = 1 - 5·2 = 1 - 5 - 5 = a₂ - 5
a₄ = 1 - 5(4 - 1) = 1 - 5·3 = 1 - 5 - 5 - 5 = a₃ - 5
and so on, therefore:
aₙ = aₙ₋₁ - 5What are the values of x and y if you answer is not a whole number write it as a decimal and round if neccasasry
Answers
a) 3x + 5y = 26
b) 2x + 2y = 12
First, we need to find a way to equate either the x terms or the y terms in each equation. a) 6x + 10y = 52
b) 6x + 6y = 36
Then take equation b) from the equation a) to eliminate the x component.
a) 6x + 10y = 52
- b) 6x + 6y = 36
0x + 4y = 16
y = 4 ?
Then substitute the value of y into either equation to find the value of x.
b) 2x + 2y = 12
2x + (2x4) =12
2x + 8 = 12
2x = 4
x = 2
I hope this new information i read helps you maybe understand it and as an example!
The radius of a quarter circle is 3 kilometers. What is the quarter circle's area?
Use 3.14 for and round your answer to the nearest hundredth. WILL GIVE BRAINIEST!!!
Answers
Answer:
[tex]area = \frac{1}{4} \pi {r}^{2} \\ = \frac{1}{4} \times 3.14 \times ( {3}^{2} ) \\ = 7.07 \: km²[/tex]
Find area triangle of 15 ft and 18 ft
The area of the triangle is. Ft2
Answers
Answer:
a= 135
Step-by-step explanation:
18*15=135
Help! Please I’m not sure what to do I forgot
Answers
Answer:
∠ B = 54°
Step-by-step explanation:
Supplementary angles sum to 180°, so
7x + 7 + 4x - 14 = 180
11x - 7 = 180 ( add 7 to both sides )
11x = 187 ( divide both sides by 11 )
x = 17
Then
∠ B = 4x - 14 = 4(17) - 14 = 68 - 14 = 54°
Identify each polygon. Describe each polygon by as many names
as possible.
1.
2.
3.
4.
5.
6.
Answers
Answer:
A polygon with one side could be a henagon or monogon
2 sides = digon or bigon
3. sides trigon or traingle ( equaliteral traingle , isosceles traingle Right traingle, acute traingle , obtuse traingle.
4 sides all the quadrilateral include square rectangle parallelogram, trapezium, rhombus , kite
5 sides = pentagon
6= hexagon
7 heptagon
8 octagon
9 nonagon
10 decagon
I had this on my test and i’m confused, can anyone help me?
10x + 364m = ?
Answers
Answer: It is complicated. I think you can graph it. The internet said that is was undoable.
Step-by-step explanation:
When 3x^2+ 18x - 21 = 0 is written in the form (x - p)^2= q, what is the value of q?
Answers
Answer:
16
Step-by-step explanation:
Just had the question
NUMBER 9 I NEED THIS RN MY FRIEND NEEDS THE ANSWER HELP ME PLEASE (60 Points) HELP
Answers
Answer:
18
Step-by-step explanation:
The first term is 18
I mean it's the first number
Please Help Me!
The table lists the steps to construct a tangent to circle P through point T. Drag the steps so they are in order.
Answers
Answer:
The answer is already in the correct formation, there is nothing to change.
Answer:
the person above is right.
What is the value of the expression as a Fraction
Answers
Hope this help.
Gomez isn’t sure what to do. Should he put his $3000 into an account paying 6% for 10 years compounded annually or should he put into an account paying 10% for five years?
Answers
Answer:
If these are the only two options, the most profitable is the first option (6% and 10 years).
Step-by-step explanation:
Giving the following information:
Initial investment (PV)= $3,000
Number of periods (n)= 10 years or 5 years
Interest rate (i)= 6% or 10%
To calculate the future value (FV), we need to use the following formula:
FV= PV*(1 + i)^n
6% interest rate:
FV= 3,000*(1.06^10)
FV= $5,372.54
10% interest rate:
FV= 3,000*(1.1^5)
FV= $4,831.53
If these are the only two options, the most profitable is the first option (6% and 10 years).
A parabola opening up or down has vertex (0, -6) and passes through (4, -4). Write its
equation in vertex form.
Answers
Answer:
Step-by-step explanation:
0,6
Answer:
the answer would be 0,6 because the the slope passing across bothe sides of the graph
WORTH 20 POINTS ✨HELPPP PLEASEEE
Answers
Answer: 9.42 for circumference and the area is 7.065
Step-by-step explanation:
9=y + 6 what does it equal
Answers
Answer:
3
Step-by-step explanation:
3 +6=9
Meredith has two different-sized bags of trail mix. The larger bag contains 6.18 ounces of trail mix. The smaller bag contains more trail mix? Why
Answers
Answer:
The answer is "smaller bag ".
Step-by-step explanation:
Please find the complete question in the attached file.
There are more trail mixes in the smaller pack.
It's because in the smaller bag (6.8 ounces) the trail mix is more than in the bigger bag (6.18 ounces).
It was reasonable because the capacity of the bag is not stated, and both bags will contain far more than 6,8 ounces.