Answer:
x= -0.5
y= -2.5
he function y = 2x2 + 4x – 6 is graphed.
Use the graph to complete the statement.
The graph shows x-intercept(s) located at .
Answer:
2 -3 and 1
Step-by-step explanation:
Answer:
the answer is 2 and -3 and 1
Step-by-step explanation:
Determine the solution and the reasoning that justifies the solution to the systems of equations.
(0,8), because this point is true for both equations
(0,8), because the lines intersect the y-axis at these points
(-2, 4), because this point makes both equations incorrect
(-2,4), because it is the point of intersection of the two graphs
Answer: (-2,4), because it is the point of intersection of the two graphs
Step-by-step explanation:
i did it
In a representative survey 9 out of 12 middle schoolers prefer
doughnuts to candy bars. How many doughnuts would you predict you
need for a group of 250 middle schoolers? How many candy bars?
Answer:
187.5 doughnuts (about 188)
62.5 candy bars (about 63)
Step-by-step explanation:
So the proportion of middle schoolers who prefer doughnuts is p = 9/12. That means the proportion of middle schoolers who prefer candy is 1 - 9/12 = 3/12.
The number of middle schoolers is n = 250.
Let X represent the number of doughnuts you need. The expected number is E(X) = np, so multiply them together:
E(X) = np
E(X) = 250 * 9/12 = 187.5 doughnuts
Let Y represent the number of candy bars you need. The expected number is E(Y) = np, so multiply them together:
E(Y) = np
E(Y) = 250 * 3/12 = 62.5 candy bars
Answer:
250/12=20.83
so there is about 21 times more people
20.8333 x 9 = 187.5
250-187.5=62.5
(I am going to put 62 so when you add up it will be 250 instead of 251)
about 188 people will have donuts and about 62 candy bars
Step-by-step explanation:
What is the value of x?
A. 5
B. 8
C. 10
D. 15
Answer:
Its A
Step-by-step explanation:
1+1
this is a joke lol
Which ordered par Woud form a proportional relationship with the point graphed Below?
A (10,10)
B (25,35)
C (70,50)
D (90,60)
Please justify the answer
Answer:
The age of the car in years is the independent variable
The average miles is the dependent variable
Step-by-step explanation:
Typically, the age of the car will have an affect on the number of miles per gallon. However, the number of miles per gallon will not make it gain or lose more years, so the age is independent because it does not depend on another variable.
Hope this makes sense :)
Identify the following data set: ....a manager of a movie theater was asking customers at the concession stand how they would rate the theater's staff.
Population
Sample
1. Sample
2. Population
3. Parameter
4. Statistic
If 50% of an item is 22.00 what is the original price ?
Answer:
$44
Step-by-step explanation:
Answer:
44
Step-by-step explanation:
5π 77π
18. 18
Are they coterminal
Answer:
yes
Step-by-step explanation:
Find the growth rate (b) if the amount of growth is 11.8%
Answer:
B
Step-by-step explanation:
I think.
3(1−2)<33
I will give brainliest!,
Pls if possible explaine to me how to do ittt
Answer:
I believe it is B. n<-5
Step-by-step explanation:
Answer:
n>-5
Step-by-step explanation:
Imagine the< is an equal sign Solve it as you would normally do
3(1-2n) < 33
3(1-2n) = 33
Then use the distributive property
3 - 6n = 33
-3. -3
-6n = 30
Inverse operations
-6n = 30
When you use inverse operations and you divide l
or múltiply by a negative number the signs change around < will change to >
-6n = 30
÷-6. ÷-6
n > -5
Wha do you call a pair of angles that add up to 180 degrees?
Please help.
Answer:
supplementary angles
Step-by-step explanation:
Supplementary angles add to 180
Complementary angles add to 90
Andrea opened a bank account for her daughter Hannah, with a deposit of $ 1,750 . The account will earn 2% simple interest annually. How many months will it take her to earn interest in the amount of $245 on her deposit?
Answer:
84 months
Step-by-step explanation:
I × 100 = P × R × T
I = interest = $245
P = principal = $1750
R = rate = 2%
T = time(in years) = ??
245 × 100 = 1750 × 2 × T
24500 = 3500T
24500/3500 = T
7 = T
To convert the time to month:
7 × 12 = 84 months
The product of Jack's age and Florence's age is 266. Jack is 14 years
old. How old is Florence?
Answer:
19
Step-by-step explanation:
you divide 266 by 14
Answer:
19
Step-by-step explanation:
266 ÷ 14 = 19
Find the reference angle of 14 pie over 11
Answer:
Step-by-step explanation:
reference angle=(14 π)/11-π=(14-11)π/11=3π/11
3. A cone has a radius of 1.2 inches and a height of 2.9 inches. What is the volume, to the nearest tenth of a cubic inc D. 13.1 cubic inches.
h, of the cone?
A. 3.6 cubic inches.
B. 4.4 cubic inches.
C. 10.6 cubic inches.
Answer:
B
Step-by-step explanation:
The volume of the cone is defined as
Volume = pi * r^2 * (h/3)
Volume = pi * 1.2^2 * (2.9/3)
Volume = 4.37310 in^3
If the answer is rounded to the nearest tenth of a cubic inch,
then the final answer is letter (B) 4.4 in^3
12. Use the graph of f(x) to find the solutions to the equation f(x)=0 (1 point)
two solutions: r= -10,2
two solutions: x = 10.-2
one solution: x= 10
no solutions
A pool measuring 8 meters by 24 meters is surrounded by a path of uniform
width, as shown in the figure. If the area of the pool and the path combined is
960 square meters, what is the width of the path?
Answer:
8 meters
Step-by-step explanation:
8 × 24 = 192, 960 - 192 = 728.
The width of the path will be 8, and the length of the path will be 91, but since the question is just talking about the path's width, then the answer is 8 meters.
Which function can be used to find the marked-up price of a marble countertop depending on the area?
Answer:
=4.8875a
Step-by-step explanation:
c(a) = 4.25 a
m(c) = 1.15c
We want to find m(c(a) )= 1.15(4.25a) =4.8875a
Answer:
4.8875a
Step-by-step explanation:
Help me with this pleaseeeee as soon as possible
Answer:
350
Step-by-step explanation:
if you add
22+35+26+17=100
well 100×10=1000
so just multiply 35 by 10= 350
A 2-year loan of $500 is made with 4% simple interest. Find the interest earned. Please state the answer with a dollar sign followed by a whole number. Example: $32
Answer:
$10
Step-by-step explanation:
4% of 500 is 5 dollars and two years is 10
Solve the equation 7x+8y=3 for y.
Answer:
y=(-7x+3)/8
Step-by-step explanation:
8y=-7x+3
y=(-7x+3)/8
Nyah receives a chain letter and has to copy the letter and send it to 4 of her friends,
have to copy the letter and send it to 4 other friends, and so on.
Finding the number of letters sent on the nth mailing is an example of
a geometric sequence
COMPLETE
If everyone who receives a letter participates, how many letters will be sent on the si
54 X = 4,096
COMPLETE
By the sixth mailing, how many people will have participated since the start?
DONE
I need the last part
Answer:
1. Geometric sequence
2. 4,096
3. 5,460
Step-by-step explanation:
Part 1
Since the number of letters sent is multiplied by 4 for any subsequent term, the sequence is an example of a geometric sequence as it grows exponentially.
Part 2
Given a geometric sequence, the nth term is determined using the formula:
[tex]T_n=ar^{n-1},$ where r=common ratio, a=first term, n=number of terms[/tex]
In this case,
a=1 (i.e. Nyah)
r=4
Since we want to determine how many letters will be sent on the sixth mailing(i.e after Nyah), n=7
Substituting
[tex]T_6=1*4^{7-1}\\=4^6\\=4096[/tex]
Part 3
To determine how many people would have participated by the sixth mailing, we are required to find the sum of the first seven terms of the geometric sequence.
We use the sum of a geometric sequence formula
[tex]S_n=\dfrac{a(r^n-1)}{r-1} \\S_7=\dfrac{1(4^7-1)}{4-1} \\=\dfrac{16383}{3}\\\\=5461[/tex]
Therefore, excluding Nyah, 5460 people would have participated by the sixth mailing.
Answer:
1. Geometric sequence
2. 4,096
3. 5,460
Step-by-step explanation:
In a club there are 10 women and 7 men. A committee of 6 women and 4 men is to be chosen. How many different ways are there to select the committee?
A) 1,680 ways
B) 27 ways
C) 7,350 ways
D) 127,008,000 ways
Answer:
c
Step-by-step explanation:
⇒
10×3×7×7×5=7350ways
1) write down a different ratio equivalent to 12 : 3
2) write down a different ratio equivalent to 30 : 24
Answer: 1) 4:1 2) 60/48
Step-by-step explanation:
1. 12: 3 is the same as 12/3 so you can diving both side by 3.
12:3 ÷ 3/3=4/1
2. 30:24 is the same as 30/24 so you can divide both sides by 6 or multiply both sides by 2.
30/24 * 2/2= 60/48
Each square in the grid is a unit square with an area of 1 square unit.
What is the area of the figure?
We just count squares. Those two half-squares will add to one whole square. So this is a 3x4 rectangle plus a triangle of area 2.
Answer: 14
Find the value of x
please help as soon as possible
Answer:
22
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
To find the mean you have to do the sum of all of the numbers divided by the number of days there are (in this case there are 5: Monday, Tuesday, Wednesday, Thursday, and Friday)
So,
23 + 18 + 24 + 15 + 25 = 105
Then,
105/5 = 21
help asap will mark brainliest
Answer:
74
Step-by-step explanation:
Both angles x and 106 are supplementary which means
x+106=180
x=180-106
x=74
Answer:
74°
Step-by-step explanation:
In the image you have provided, angle 'x' and 106° are co-interior angles. This mean that both the angles add up to 180°. We can easily identify co-interior angles because the angles would be inside. The other types of angles you can get is vertical and corresponding. Using the information in the second sentence we can set up an equation,
⇒ Form an equation
→ x + 106 = 180
⇒ Minus 106 from both sides to isolate x
→ x = 74°
The values of angle x is 74°
