Answer:
[tex]Given,\\y = 4x+1......(1)\\y = 2x^2+7x-1.............(2)\\Equating~equation (1)~and~(2),\\4x+1 = 2x^{2} +7x-1\\or, 2x^{2}+7x-4x-1-1=0\\or, 2x^{2} + 3x-2=0\\or, 2x^{2} +4x-x-2=0\\or, 2x(x+2)-1(x+2)=0\\or, (x+2)(2x-1)=0\\i.e. x=-2 ~or~ \frac{1}{2} \\When~x=2,~equation(1)~becomes ~y=4(-2) +1=-7\\When~x=-\frac{1}{2},~equation (1)~becomes~y=4(\frac{1}{2}) +1 = 2+1=3[/tex]
So, the required values of x are -2 and 1/2 and that of y are -7 and 3.
PPPLEEASSSEREE
Add. What is the sum (2 x 10") + (7 x 101 ) in scientific notation?
Answer:
Simplify the expression? Is it: 2 x 10 '' + 707 x ....?
- Question 11
Mrs. Pitoya has 30 apples and is buying more apples in crates containing 20 apples each. She needs 130 apples for a harvest celebration at her school,
Which equation and solution correctly represent x, the number of crates of apples Mrs. Pitoya needs to buy?
Answer:
Mrs pitoya has to buy 9 crates of apples
Answer: She only needs to buy 5 more crates of apples.
30 + 20(x) = 130
30-30+20(x)=130-30
20x = 100
x = 5
Step-by-step explanation:
Question 2
Find the slope given the points:
(0, -2) and (1,1)
Answer:
Step-by-step explanation:
Slope=(y-y)/(x-x)=3/1=3
The ratio of men to women in a
community chorus is 4/5 There are 60
men in the chorus. How many women are
in the chorus?
Answer:
125 women
Step-by-step explanation:
Answer: 75 women
Step-by-step explanation:
4/5
60/4=15
15x5= 75
4. The band at Jason's high school had a concert for charity. They raised $15000. Adult tickets were $5 each and student tickets were $3 each. The members of the band sold a total of 4000 tickets. Which of the following systems of equations can be used to determine how many adult, x, and student tickets, y. they sold? A. x + y = 4000 5x + 3y = 15000 C. x - y = 4000 5x - 3y = 15000 B. x + y = 15000 5x + 3y = 4000 D. 5x + 3y = 4000 3x + 5y = 15000 03 PO P MINE W 1 NY 19 C
Answer:
A. x + y = 4000
5x + 3y = 15000
Step-by-step explanation:
Total amount raised = $15000
cost of adult tickets = $5
cost of student tickets = $3
Total number of tickets sold = 4000
number of adult tickets sold = x
number of student tickets sold = y
Then we can say,
total number of ticket sold = number of adult tickets + number of student tickets
4000 = x + y
⇒ x + y = 4000 ............. 1
Also,
5x + 3y - 15000 ............. 2
the equations required are:
x + y = 4000
5x + 3y - 15000
4.7x4.7x4.7 thats about it
Answer:
103.823
Step-by-step explanation:
It's just 4.7 to the third power, so I multiplied to get 103.823. :)
5.25 divided by 3
Thank You.
Answer:
1.75
Step-by-step explanation:
1.75 :) you can check your answer by multiplying by 3!
Brainliest would be appreciated
Jim said that the terms in an arithmetic sequence must always increase, because you must add the common difference to each term to get the next term. Is Jim correct? Justify your reasoning
Answer:
i need points
Step-by-step explanation:
Find the median of the data in the box plot
below.
cookies
Number of cookies eaten
by each contestant
H
HHH
HHHH
2 4 6 8 10 12 14 16 18 20 22 24 26 2830
Answer:8
Step-by-step explanation:
Khan academy answer
5 divided by 7/8 as a fraction
Pls help 44 points
Answer:
5.714 (rounded to the nearest thousandth)
Step-by-step explanation:
please help me will mark brainliest
Answer:
What do you need help with
Step-by-step explanation:
What is the common ratio of 9, 81, 729. -6561
Given:
Consider the given sequence is 9, 81, 729, 6561.
To find:
The common ratio.
Solution:
We have,
9, 81, 729, 6561
Here,
First term = 9
Second term = 81
Divide the second term by first term to get the common ratio.
[tex]r=\dfrac{81}{9}[/tex]
[tex]r=9[/tex]
Similarly,
[tex]\dfrac{81}{9}=\dfrac{729}{81}=\dfrac{6561}{729}=9=r[/tex]
Therefore, the common ratio is 9.
Find the lateral area of the regular pyramid.
L. A. =
Answer:
I think 32 inches 2.
But I am not 100% sure.
please help i’ll give brainlyist this is due in 10 minutes
Answer:
hi :)
Step-by-step explanation:
0 yrs is 350 or 500 im not sure but, and then 6 yrs is 1350 $
3. *
2 points
Jessica bought seven boxes. A week later
half of all her boxes were lost during a
move. There are now only 13 boxes left.
With how many did she start?
Answer:
19 boxes
Step-by-step explanation:
Karen spent $17.59 on supplies that she is going to use to make jewelry. How much would she spend if her money was rounded to the nearest dollar? Remember, this is a money problem. Don't forget to use the proper symbols.
Answer:
$18.00
Step-by-step explanation:
Answer: 18$
Step-by-step explanation:
17.59 is the current amount if you round to the nearest dollar the .5 will make the 7 go up in value meaning it will turn into a 8
Hellppppppp meeeee ASAP
First gets brainly
I'm not going to do all of them for you but I'm basically going to teach you what your teacher taught you.
In division with fractions, the second fraction will be flipped around and then you'll multiply normally.
Example:
(5/3)/(2/3)
You would flip around the 2/3 so it would be 3/2
Then you would multiply:
5/3*3/2
To do multiplication, multiply the top numerator by the top numerator and the bottom numerator by the bottom numerator as I'm sure you've already learned
5*3 = 15
3*2 = 6
15/6
Let me know if you have any questions
If you're wondering why I didn't give you the answer, it's because "Give a man a fish and he'll eat for a day; teach a man to fish and he will eat for a lifetime"
Thank you
There is a bag with only red marbles and blue marbles.
The probability of randomly choosing a red marble is
6 over 7 as a fraction.
There are 30 red marbles in the bag and each is equally likely to be chosen.
Work out how many marbles in total there must be.
PLEASE ANSWER ASAP !!!!!
Answer:
5
Step-by-step explanation:
It is asking the y-intercept of the x- intercept, 0.
find the slope of the line y = 1/6x + 3/2
Answer: 1/6
Step-by-step explanation:
Slope is the m in y=mx+b
Can someone tell me a good definition for “Annuity” please?
Answer:
an annuity is a type of retirement income product that you buy with some or all of your pension pot. it pays a regular retirement income either for life or for a set period. (hope this is a decent answer lol)
Step-by-step explanation:
Answer:
An annuity is a contract between you and an insurance company in which you make a lump-sum payment or series of payments and, in return, receive regular disbursements, beginning either immediately or at some point in the future.
Step-by-step explanation:
What is the perimeter of the regular heptagon below?
Answer:15.65
Step-by-step explanation:
9,-81, 729,-6561...
What is the common ratio?
Help which is the correct answer?
Answer:
[tex]r = -9[/tex]
Step-by-step explanation:
Given
[tex]Sequence: 9,-81, 729,-6561...[/tex]
Required
Determine the common ratio
The common ratio r is calculated using:
[tex]r = \frac{T_n}{T_{n-1}}[/tex]
Let [tex]n = 2[/tex]
So, we have:
[tex]r = \frac{T_2}{T_{2-1}}[/tex]
[tex]r = \frac{T_2}{T_1}[/tex]
From the sequence:
[tex]T_2 = -81[/tex]
[tex]T_1=9[/tex]
So, the equation becomes
[tex]r = \frac{-81}{9}[/tex]
[tex]r = -9[/tex]
WILL MARK BRAINLIEST!
Given ΔABC : ΔDEF, find x.
10
14
27
12
Answer:
x=12
Step-by-step explanation:
If the triangles are similar:
x/8=18/12
x/8=1.5
x=12
Answer:
12.
Step-by-step explanation:
Which of the following demonstrates the distributive property?
a) 3+ 5 = 5 + 3
b) 6+ (-6) = 0
c) (3x + 8) + 6 = 3x + (8 + 6)
d) -(x-3) = -x + 3
Answer:
c one demonstrates the distributive property
What is the side length of a square with the area of 20cm2
Answer:
S = a² => 20 = a² => a = √20 ≈ 4.5 cm
Step-by-step explanation:
Which expression below is equivalent to -3x + 5(x+2)?a. 2x + 10
b. -8x + 10
c. 2x + 2
d. -x+2
Twenty people attended a going away party for Zach.The guest left in groups of 2.By 9:00,x groups had left.Rewrite the number of guests remaining at 9:00 as a sum.
Answer:
The number of guests remaining at 9:00 is;
(20-2x)
Step-by-step explanation:
From the question, we are told that x groups have left
Since they are leaving in groups of 2, x groups means a total of x * 2 = 2x
So we have 2x left out of a total 20; the people remaining at the party will be;
20-2x
im not sure of my answer i need help please!!
Answer:
C. y = -2/3x + 4
Step-by-step explanation:
y = mx + b
y-intercept of positive 4 on the y axis
m is the slope which is down 4 right 6 which reduces to -2/3
Classify the quadrilateral then find the values of the variable (s) PLS HELPPP
Answer:
x = 58°, y = 32°
Step-by-step explanation:
all sides are equal, hence it is a rhombus.
in a rhombus, diagonals meet at 90degree..
hence in triangle,
58 + 90 + z = 180 (asp of a triangle.)
z = 32
y = z ( alternate interior angles as lines are parallel in rhombus)
y = 32
in the bigger triangle,
angles opposite to equal sides are equal, hence,
32 + 32 + (58 + x) = 180 ( angle sum property of a triangle,)
hence, x = 58
therefore,
x = 58°, y = 32°