Answer:
(-8, 8)
Step-by-step explanation:
Plug in the y from the top equation into the y of the bottom equation
x² + (x + 16)² = 128
x² + x² + 32x + 256 = 128
Subtract 128 from both sides to make it equal to zero
2x² + 32x + 256 = 128
- 128 - 128
2x² + 32x + 128 = 0
Divide both sides by 2
(2x² + 32x + 128)2 = 0/2
x² + 16x + 64 = 0
Factor the equation
(x + 8)(x + 8) = 0
We see that x will have to be -8 for it to equal zero
so x = -8
Plug the new x into one of the original equations; let's use the top one
y = -8 + 16
y = 8
The coordinates of a figure are (0, 2), (3, 4), (-1, -3), and (2, -1). What is the most specific classification?
A. quadrilateral
B. Parallelogram
C. isosceles trapezoid
D. rectangle
Answer:
B. Parallelogram
Step-by-step explanation:
It should look something like this which is a parallelogram.
Parallogram is like a rectangle or square that is kinda slanted.
________
/ /
/_______/
Ben plants 6 rows of roses, with the same number of roses in each row.
Answer/Step-by-step explanation:
r are roses,
r + 6
Ben plants 6r
[RevyBreeze]
50 POIINTS AND BRAINLIEST IF YOU ANSWER THESE QUESTIONS QUICK AND CORRECT PLS HURRY!!!
first one 200 and second 6
Answer:
Step-by-step explanation:
1. 1300/65=20 sales
2.2+2=4
22-4=18
18/2=9
unknown number of inch=x+3
x=9
(9)+3=11
unknown number is 11 inch.
9(b + 5) – 4b
what is this equivalent expression?
=
Answer:
[tex]9(b + 5) - 4b = \\ 9b + 45 - 4b = \\ 5b + 45 = b + 9[/tex]
Hope it helps you<3[tex] \looparrowright \sf9(b + 5) - 4b[/tex]
[tex] \\ \\ [/tex]
[tex] \looparrowright \sf9b + 45 = - 4b[/tex]
[tex] \\ \\ [/tex]
[tex] \looparrowright \sf9b + 4b + 45 = 0[/tex]
[tex] \\ \\ [/tex]
[tex] \looparrowright \sf5b + 45 = 0[/tex]
[tex] \\ \\ [/tex]
[tex] \looparrowright \sf5b = - 45[/tex]
[tex] \\ \\ [/tex]
[tex] \looparrowright \sf \: b = - 45 \div 5[/tex]
[tex] \\ \\ [/tex]
[tex] \looparrowright \sf \: b = -9[/tex]
Sum of the digits of a 2-digit number is 9. When the digits are reversed, it is found that the resulting number is smaller then the original number by 63. Find the number.
Answer:
81
Step-by-step explanation:
the sum of adding 81 is 9, reversed 81 is 18 and 81 - 18= 63
Answer: ans is 36
y-step explanation:
what is the rule for this table?
Ahmed sells different types of cake in his shop.
The cost of each cake depends on its type and its size.
Every small cake costs $x and every large cake costs $(2x + 1).
The number of small cherry cakes that can be bought for $4 is the same as the number of large
cherry cakes that can be bought for $13.
Find the cost of a small cherry cake.
Answer:
$0.80
Step-by-step explanation:
Let y be the number of cakes that can be bought then...
xy=4
y(2x+1)=13
Distribute the y to each term in the parentheses...
y(2x)+y(1)=13
2xy+y=13
xy=4
Multiply the second equation by 2...
2xy+y=13
2xy=8
Solve the equation using elimination (subtract the two equations and eliminate 2xy)...
y=13-8=5
Now, plug 5 back in for y to solve for x...
xy=4
5x=4
Divide both sides by 5
x=$0.80
I need explanation on the 3 times an odd integer and explanation of the questions.
You’re the god if u can so answer this question.
I'm going to try the strategy of "narrow it down slowly."
Let's start with how many perfect squares there are less than 1000. We have
0^2 = 0
1^2 = 1
2^2 = 4
3^2 = 9
...
30^2 = 900
31^2 = 961
32^2 = 1024
This means there are 0...31 so 32 perfect squares less than 1000.
Three times an odd integer... this is tricky. If you think about it, if n is divisible by three, then n must have a factor of 9 in it (why?), so [tex]\sqrt n[/tex] must have a factor of three! Boom, now we just have to count how many odd numbers from 0...31 are divisible by three. The first one is 1(3), the second is 3(3), the third is 5(3), the fourth is 7(3), and the fifth is 9(3). This means there are five such numbers.
To estimate the proportion of city residents who shop online, a researcher visits a mall on a weekday morning and
asks people she encounters to share their experiences with online shopping, including this question: "Do you shop
online at least once each week?" The results show that 32% of shoppers shop online at least once per week. Which
of these describes a likely source of bias present in the survey results?
O Response bias may be present because people may not be truthful with their responses.
O Question wording bias may be present because the question asked may exclude important information
O Nonresponse bias may be present because people in a mall may not want to answer questions.
O Undercoverage bias may be present because people in the workforce and many younger people could be
excluded
Answer:
Undercoverage bias may be present because people in the workforce and many younger people could be excluded.
Step-by-step explanation:
Chen is baking muffins and banana bread for a brunch buffet.He needs. 3 1/5cups of flour to make the muffins and 3 2/3cups of flour to make the banana bread.Which is the best estimate of the number of cups of flour that Chen needs to bake both recipes?
Answer:
6 13/15
Step-by-step explanation:
Make both the numerator and denominator the same. Thean add the fractions together to get 6 13/15
Select all equations that are equivalent to x2 + 6x= 16.
A) x2 + 6x +9=0
B C2 + 6x +9 = 16
C. x2 + 6x +9= 25
D. (a + 3)2 = 0
E, (x + 3)2 = 16
F. (x + 3)2 25
Answer:
(b) c2+6x+9=16
(e) (x+)2=16
Step-by-step explanation:
HELP HELP MEEEEEE PLEASE 100 points ANYONE PLS
Answer:i want to say first third
Step-by-step explanation: hope this is helpful
PLEASE ANSWER ILL GIVR BRAINLIEST 50 POINTS
Use the parabola tool to graph the quadratic function f(x)=x2−12x+27.
Graph the parabola by first plotting its vertex and then plotting a second point on the parabola.
Answer:
vertex = (6, -9)
point = (0, 27)
see attached diagram for graph
Step-by-step explanation:
[tex]f(x)=x^2-12x+27[/tex]
Vertex form: [tex]y=a(x-h)^2+k[/tex]
where (h, k) is the vertex
Rewrite function in vertex form:
[tex]\implies f(x)=(x-6)^2-36+27[/tex]
[tex]\implies f(x)=(x-6)^2-9[/tex]
Therefore, vertex = (6, -9)
As the coefficient of [tex]x^2[/tex] is positive, the parabola will open upwards (u shaped).
Point to plot:
f(0) = 27
Therefore, point = (0, 27)
Find the value of x.
Answer:
x = 12
Step-by-step explanation:
The sum of the exterior angles of a convex polygon is 360°.
(5x +4)° +(4x +9)° +(9x -6)° +(4x +1)° +(7x +4)° = 360°
29x +12 = 360 . . . . . divide by °, collect terms
29x = 348 . . . . . . . subtract 12
x = 12 . . . . . . . . . divide by 29
Answer:
x=11.58
Step-by-step explanation:
The sum of an exterior angle of a polygon is 360°,
9x-6+4x+9+5x+4+7x+4+4x+1=360°
29x+24=360
29x=360-24
29x=336
x=336/29
x= 11.586
x=11.58
Hope it helps! :)
please help!!-
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you want a better price to pay the bill on a daily plan or manual to make sure the balance was not included to pay to the insurance to get rid if they had been approved to be paid in a year for 170m months to come and legendary domortu for a few days now for a long weekend and Golden is a bit crazy but I'm not even getting out here to get it out and I don't want you want it or don't know me or you know I am not a big fan of your music and legendary domortu but if someone could give them some pets from your bank to help us find out the details for 200m
What is the equation of the line that passes through the point (3,−5) and has a slope of 0?
Answer:
The answer is y + 5 = 0
Step-by-step explanation:
We know that, the equation of a line passing through point P(a, b) and slope m is given by
(y – b) = m(x – a) ...(1)
Here, The given point is P(3, -5) and slope is m = 0
from (1) we get
[(y – (-5)] = 0(x – 3)
y + 5 = 0 is the required equation of line.
Thus, The answer is y + 5 = 0
-TheUnknownScientist 72
Huilan's age is two times Thomas's age. The sum of their ages is 87 What is Thomas's age?
Answer:
29
Step-by-step explanation:
We can make an equation from the word problem:
H +T =87
2T+T=87
3T=87
87÷3=29
T=29
This is our answer but we can substitute this into our equation:
H +T = 87
2T+T =87
2(29)+29 = 87
58+29=87
87=87
So 29 is ✅
WILL MARK YOU BRAINLIEST NO FAKE ANSWERS! Name a pair of same side exterior angles.
Answer:
Angles 5 and 9 or angles 1 and 8Step-by-step explanation:
Given m and n are parallel and there are two transversals, one of which doesn't form exterior angles hence angles 5 and 9 as well as angles 1 and 8 are the same side exterior angles
What is the area of a picture of a silent that are 12 inches? Use The formula A=s^2, where is the length of one side
Answer:
144 in²
Step-by-step explanation:
Area of square: [tex]s^2[/tex]
Here s is 12 inches.
Using the formula:
area: [tex]s^2[/tex]
area: 12²
area: 12 * 12
→ 144 in²
The formula to find area of square is:
[tex] \tt \: area = {s}^{2} [/tex]
Where,
s is sideIn our case,
s = 12 inchesSo,
[tex] \sf \: area = {12}^{2} [/tex]
[tex] \boxed{ \bf \: area = 144 \: {in}^{2}}[/tex]
Write the equation of the line that passes through the given points. (2,2.5) and (0,-2.5)
Answer:
y = 2.5x - 2.5
Step-by-step explanation:
slope is y2-y1 / x2-x1
so
2.5- (-2.5)/ 2 - 0
5/2
2.5 for your slope
Hi, I need some help with this slope problems
It’s due tomorrow, some help with them would really help
Thanks
Find the circumference of the circle. Use 3.14 for
23ft
Answer:
144.44 units
Step-by-step explanation:
C = 2 * 3.14 * 23
C = 6.28 * 23
C = 144.44 units
pls help rn pls pls pls if u answer correct ill mark u as brainliest
Answer:
the answer is 3
Step-by-step explanation:
is this a joke
What is the factored form of the expression x2 − 81
Answer:
(x + 9)(x - 9)
Step-by-step explanation:
Apply the Difference of Two Squares formula: x² - y² = (x + y)(x - y)
Rewrite 81 at 9²
⇒ x² - 81 = x² - 9² = (x + 9)(x - 9)
Answer:
[tex]\left(x+9\right)\left(x-9\right)[/tex]
Step-by-step explanation:
[tex]x^2 - 81[/tex]
factor 81 as 9²
[tex]x^2-9^2[/tex]
using formula: a² -b² = (a+b)(a-b)
[tex]\left(x+9\right)\left(x-9\right)[/tex]
A cylinder with a base diameter of x units has a volume
of cx cubic units.
Which statements about the cylinder are true? Select
two options.
The radius of the cylinder is 2x units.
The area of the cylinder's base is xx2 square units.
The area of the cylinder's base is
rxsquare units.
The height of the cylinder is 2x units.
The height of the cylinder is 4x units.
Mark this and return
Save and Exit
Submit
ity.com/ContentViewers/AssessmentViewer/Activit
Answer:
use symbolab
Step-by-step explanation:
the interior angles of a pentagon are 100°,×°,(3×+30)°,(2×-10)°,and 80°. Find ×
Step-by-step explanation:
Sum of the interior angles of a Pentagon = 540
Therefore, 100+x+(3x+30)+(2x-10)+80=540
100+x+3x+30+2x-10+80=540
Group like terms
x+3x+2x=540-100-30+10-80
6x=340
6x=340
6 6
x=56.6
Countries with the highest populations in the world also have the highest population densities. True False.
Countries with the highest populations in the world also have the highest population densities is False.
What is a population?The number of people living in a country is known as population.
What is population density?The number of people living in a unit area is called population density. It is the ratio of the population of the country and the area of the country.
Countries with the highest populations in the world also have the highest population densities.
This statement is false because the population density depends on the area.
For example - China is having the first rank in population but its population density is 153 persons per kilometer square is much lesser than India which has a population density is 403 persons per kilometer square.
More about the population link is given below.
https://brainly.com/question/905400
Answer:
It is false
Step-by-step explanation:
I took the test
How many significant figures are in the measurement 1. 050 L? a. 1 b. 2 c. 3 d. 4 Please select the best answer from the choices provided A B C D.
In the diagram shown, altitude AC is drawn from a right angle to BD in such a way that BC: DC = 4:1 Find the length of DC algebraically. Show your work below.
Applying the altitude theorem and solving algebraically, the length of DC is: 6.
What is the Altitude Theorem?If an altitude of a right triangle divides an opposite side into a and b, based on the altitude theorem, the height (h) of the altitude = √(ab).
Solving algebraically:
Let DC = x
Therefore:
BC = 4x
Applying the altitude theorem, we would have:
12 = √(4x × x)
12 = √(4x²)
12 = 2x
12/2 = x
6 = x
x = 6
Therefore, DC = x = 6.
Learn more about altitude theorem on:
https://brainly.com/question/10612854
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
?=35
Step-by-step explanation:
Answer:
5/7 = 25/35
Step-by-step explanation:
First look at the numerators of the fractions. One fraction has both a numerator and denominator. Find the number that this numerator is multiplied by to get to the numerator that is missing its denominator. Multiply the known denominator by this number to find the unknown denominator.
Basically, what number did we multiply to get 25? its 5 (5x5=25)
So, multiply 7 by 5 and you'll get 35
Hope this helps!