Answers
Answer:B is the answer
Answer:
B. (-2,1)
Step-by-step explanation:
Coincidently, I was doing my System of Equations: Word Problems HW when i saw this.
So, I'll solve using Elimination.
Convert equations into standard form: -3x + y = 7 and 2x + y = -3
Multiply first equation by -1 and arrange vertically.
2x + y = -3
3x - y = -7
----------------- <Now, Add!>
5x = -10
Divide by 5 on both sides
5x/5 = -10/5
x=-2
Plug x=-2 into any equation.
y=3(-2) + 7
y= -6 + 7
y=1
So the Point of Intersection, or solution, is (-2,1)
Hope I helped, Brainliest would be appreciated :)
Have a fantastic day!
-Aadi x
Related Questions
-to-teacher ratio as last year. Which proportion can the principal use to find x, the number of teachers needed this year?
Answers
Complete question :
Last year there were 221 students and 13 teachers at Hillard School. This year there are 272 students. The principal wants to keep the same student-to-teacher ratio as last year. Which proportion can the principal use to find x, the number of teachers needed this year?
Answer:
221 / 13 = 272 / x
Step-by-step explanation:
Given that :
Last year:
Number of students = 221
Number of teachers = 13
Last year:
Number of students = 272
Number of teachers = x
To keep the same student to teacher ratio :
We equate the ratio for both years :
221 / 13 = 272 / x
221x = 272 * 13
221x = 3536
x = 3536 / 221
x = 16
what is the approximate value of 2pi - the roo of three?
Answers
Answer:
D. 4.55
Step-by-step explanation:
Answer:
The correct answer is D, or 4.55.
HELP WILL MARK BRAINLIEST IF GOTTEN RIGHT!!! GET IT WRIBNG ON PURPOSE I REPORT YOU!
Answers
Answer:
A
Step-by-step explanation:
The grocery store is having a sale on cereal. 4 boxes for $10. Using this information, find how much 1, 2, 3, and 6 boxes would cost.
Answers
Answer:
1 box is $2.5
2 box is $5
3 box is $7.5
6 box is $15
Step-by-step explanation:
Answer:1 box will cost 2.5$
2 will cost 5$
3 will cost 7.5$
6 will cost 15$
Step-by-step explanation:
Please Hurry!!
simplify the expressions
1. 2x + 1 + 3x + 7
2. 5x + 2(3x + 5)
(two different questions)
Answers
Answer:
1. 5x + 8
2. 11x + 10
Step-by-step explanation:
1. 2x + 1 + 3x + 7
Combine like terms:
2x + 3x + 1 + 7
Add coefficients
5x + 8
2. 5x + 2(3x + 5)
Distribute the 2 by multiplying by each term inside the parentheses:
5x + 6x + 10
Combine like terms by adding coefficients
11x + 10
2. 11x + 10
Hope that helped!!
find the slope given the following points (8,-6) (-9,-12)
Answers
Lauren got 321$ for her birthday. She wants to put 20% in her savings account. How much will she have left over to buy new clothes?
Answers
Answer:
$256.80
Step-by-step explanation
Change the 20% to a decimal, .20, the multiply it by the total amount of $$$, 321, and you get $64.20. Subtract that by the total amount to get the amount left over for her to get new clothes.
Hope it helps!! :))))
Estimate the sum of 872 and 121 by rounding both values to the nearest hundred. What is the best estimate of the sum?
Answers
Answer:
872
Step-by-step explanation:
Please help!! ill give 20pts
1) y=x2+24x+43
find the vertex form by completing the square SHOW ALL WORK!!!
2) Given the function f(x)=−x2+8x+9, state whether the vertex represents a minimum or maximum point for the function. Explain your answer.
Answers
Answer:
1. Vertex is (-12, -101)
2. Vertex is (4, 25)
Step-by-step explanation:
1)
[tex]y = x^{2} + 24x + 144 + 43 - 144\\ = (x + 12)^{2} - 101[/tex]
Vertex is (-12, -101)
2)
[tex]y = -x^{2} + 8x + 9\\ = -(x^{2} - 8x + 16) +9 + 16\\ = -(x - 4)^{2} + 25[/tex]
Vertex is (4, 25)
what is the distance between points A(3,-5) and B(-8,2) on the coordinate plane?
Answers
Answer:
use distance formula
Step-by-step explanation:
The area of a square floor on a scale drawing is 81 square centimeters, and the scale drawing is 1 centimeter:2 ft. What is the area of the actual floor? What is the ratio of the area in the drawing to the actual area?
Answers
so the original area is
A = 81 sq cm ( 2 ft / 1 cm)^2a = 324 sq ft
so the ratio of the ratio the area in the drawing to the actual area is:
r = 81 sq cm / 324 sq ftr = 1 sq cm / 4 sq ft1 sq cm : 4 sq ft
Answer:
4 sq ft is the answer to your question
What is
h(x) = 1/(x-5)3
Answers
Answer:
lim_( 3\/(-5 + x) = 0
Step-by-step explanation:
h(x) = 1\/(x - 5)×3
{x element R : x!=5}
{h element R : h!=0}
d\/dx(3\/(x - 5)) = -3\/(x - 5)^2
integral 3\/(x - 5) dx = 3 log(x - 5) +
4(w + 1) = -6; w =
help asap
Answers
Answer:
w = -10/4 or -2.5
Step-by-step explanation:
4(w + 1) = -6
4w + 4 = -6
4w = -10
w = -10/4 or -2.5
Answer:
W = 1/2 or 0.5
Step-by-step explanation:
Distribute
4w + 4 = 6
-4. -4
4w/4 = 2/4
W = 1/2
Which value of x from the set { 8 , 11 , 61 , 67 } makes the equation ( x − 3 )² = 64 true?
8
11
61
or 67
Answers
Answer:
I
Step-by-step explanation:
this its 61 ok thanks you
Calculate the sum of the first n terms of the arithmetic progression (an)
a) a, = -4; d = 2; n = 16
please help me
Answers
Answer:
n²-5n
Step-by-step explanation:
The sum of the nth term is expressed as;
Sn =n/2[2a+(n-1)d]
Given
a, = -4; d = 2; n = 16
Sn = n/2[2(-4)+(n-1)2]
Sn =n/2[-8+2n-2]
Sn = n/2[2n-10]
Hence the sum of the nth term is 2n²-10n/2
2n(n-5)/2
= n(n-5)
= n²-5n
The sum of the nth term is n²-5n
There are 15 juniors and 10 seniors in a class. What is the probability that if two students are selected at random that they are both seniors?
Answers
Answer:
2/25?
Step-by-step explanation:
Joe made a frozen yogurt shake with 10 ounces of milk and some strawberry frozen yogurt. He used the mixture to fill three 5-ounce glasses and had 2 ounces left over. How much-frozen yogurt did he use?
Answers
Answer:
2x - 9y = 23
5x - 3y = -1
Step-by-step explanation:
D) 4. Mrs. Smith wants to purchase table pads for her circular
dining room table. If the table has a diameter of 3 feet and
the pads cost 50 cents per square foot, approximately how
much will the table pads cost? Use 3.14 fora.
C
Answers
Answer: 3.53
Step-by-step explanation:
The cost for the table pads that Mrs. Smith will have to pay for her circular dining room table is $3.5325 approx
What is the area of a circle?If the considered circle has got is radius of 'r' units. Then, its area is calculated as:
[tex]A = \pi r^2 \: \rm unit^2[/tex]
where [tex]\pi = 3.14159...[/tex]
For this case, we are provided that:
Diameter of the circular dining table of Mrs. Smith = 3 feet
Thus, as radius is half of diameter, thus, radius of table = 3/2 = 1.5 feet
We find the area of the table since the area of the table pad that will be used for table will be equal to the area of the table because it will be applied all over the table.
The area of the table pad = area of the table = [tex]\pi (1.5)^2 \approx 3.14 \times (1.5)^2 = 7.065 \: \rm ft^2[/tex]
For each sq. foot, Mrs. Smith had to pay 50 cents = 0.5 dollars
Thus, for 7.065 sq. feet, the cost would be:
[tex]0.5 \times 7.065 = 3.5325[/tex] (in dollars)
Thus, the cost for the table pads that Mrs. Smith will have to pay for her circular dining room table is $3.5325 approx
Learn more about area of circle:
https://brainly.com/question/13004063
I’m trying to figure out #’s 31 and 32. I don’t need the answers I just need guidance on how to figure them out.
Answers
Answer:
open circle means less than OR greater to
closed circle means less than or equal to OR greater than or equal to
DOES ANYONE KNOW THISSS NEED HELP ASAP
Answers
Answer:
its 0.625
Step-by-step explanation:
Answer:
The answer is 0.625, lol
need help from An Expert i really need your help help with the whole thing
Answers
Answer:
free points
Step-by-step explanation:
Answer:
etm
Step-by-step explanation:
yc
Can anyone help my little sister with her math I tried helping her but I couldn’t figure out how to do the math!!
Answers
Answer:
1: the wooden part is 3.725 kilograms.
2: 10 Children
Answer:
1 3.725 kg of wood
2 10
Step-by-step explanation:
For question 1 you multiply the total weight by 3/4 to find the weight of the metal, you then subtract this from the total to find the weight of the wood
For question 2 you look at it as a fraction 1/3 kids + 2/3 adults equal 30, since there are twice as many adults. Then you multiply 30 by 1/3 and get 10
Alyssa had 191 dollars to spend on 6 books. after buying them she had 17 dollars. how much did each book cost?
Answers
So you subtract 191 from 17 which will get you 174 and you divide that by 6 and you get 29
To check you can multiply 29 by 6 and you’ll get 174
Answer the photo below thanks
Answers
17 x 3.4 = 53.38
53.38 Rounded Down Is 53
help meeeeeeeeeeeeeeeeeeeee pleeeaaaasssseee
Answers
Answer:
Number 4
Step-by-step explanation:
Answer:
8x^9y^6z^15
Step-by-step explanation:
please helpp!!
The exponential function f(x) has a horizontal asymptote at y = 3.
What is the end behavior of f(x)?
A.
As x decreases, f(x) approaches, but never reaches, 3. As x increases, f(x) increases.
B.
As x decreases, f(x) decreases. As x increases, f(x) approaches, but never reaches, 3.
C.
As x decreases, f(x) approaches, but never reaches, 3. As x increases, f(x) decreases.
D.
As x decreases, f(x) approaches, but never reaches, 0. As x increases, f(x) increases.
Answers
Answer: A
Step-by-step explanation:
a
Step-by-step explanation:
how to find the circumference for a 3 inch circle using 3.14 for pi
Answers
Answer: C is approximately 9.42.
Step-by-step explanation: the radius is 1.5 and the C formula is 2 x pi x r = 2 (3.14)(1.5)
HELP ME PLZZZ
You sold tickets for your school play. Adult tickets cost $5 and child tickets cost $3. If you sold $150 in total ticket sales for 40 tickets on the first night, how many of each type of ticket did you sell?
Answers
Answer:
18 adults and 20 children
(7x2 -6x - 3) + __________________ = (7 x2 + 11)
Find the measure of the larger angle. 51° 180° 129° 32°
6. Find the slope of the line graphed below. * 5) -3 -2- X -5 -4 -3 -2 -2- O -5/7 O 7/5 -7/5 O 5/7
volume of a cylinder 9 radius and 15 height
Six times a number minus four is two times a number more than four
Please help this is 1 year old work help e me pls
13/15% of quantity is equal to what fraction of the quantity?
Plz help me thank youuu
Carlos is building three gardens, each the same size, in his backyard. Each garden is in the shape of a square with a 3-foot by 3-foot section removed…
let f be the function defined by f(x) = (2t^3 - 15t^2 + 36t) dt. on which of the following intervals is the graph y=f(x) concave down?
Can someone answer this question?
Which number line shows the numbers −0.7, 0, and 1 4 plotted correctly? A number line going from negative 1 to positive 1 in increments of 1. Ther…
Complete the function table. Please help!
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If we add one unit to the length (l) of a rectangle that has width (w), what is its new area (NA) in terms of its old area (A)? NA = A + l NA = A N…
Is 2 7/8 closer to 2 or 3
Please Help!! I will give Brainiest
Answers
Answer:
1.[tex]\boxed{-7x2-6x}[/tex]
Step-by-step explanation:
Multiply the numbers ( 7 ⋅ 2 − 6x − 3 ) − 1 ( 7x ^ 2 + 1 1 ) ( 1 4 − 6x − 3 ) − 1 ( 7x^ 2 + 1 1 )2. Subtract the numbers
( 1 4 − 6x − 3 ) − 1 ( 7 x^ 2 + 1 1 ) ( 1 1 − 6x ) − 1 ( 7 2 + 1 1 )3 Rearrange terms
( 1 1 − 6x ) − 1 ( 7 x^2 + 1 1 ) ( − 6x + 1 1 ) − 1 ( 7x^ 2 + 1 1 )4 Distribute
( − 6x + 1 1 ) − 1 ( 7x^ 2 + 1 1 ) ( − 6x + 1 1 ) − 7 2 − 1 1 55.Eliminate redundant parentheses
( − 6x + 1 1 ) − 7X^ 2 − 1 1 − x6 + 1 1 − 7 2 − 1 1 67. Subtract the numbers
− 6x + 1 1 − 7x 2 − 1 1 − 6x − x7 2 78.Rearrange terms
− 6x − 7 2 − 7x 2 − 61. Volume of a cylinder 9 radius and 15 height
V≈3817.042.Can someone answer this question?
Which number line shows the numbers −0.7, 0, and 1 4 plotted correctly?Answer: The locations of given number are shown on the below number line.
Hope this helps, Unfortunately I do not have enough room to do the rest or enough time. Sorry
what is the [?]
which one answers this equation. please help
24 [?] 3/4= -32
answer choices:
x (times)
+ (plus)
- (minus)
/ (divided by)