I think there's missing information in your question. We can solve the quadratic equation for x as shown below. See what you can do with the values of x found.
0 = x^2-8x+7
0 = (x - 7)(x - 1)
x = 7
x = 1
Divide. (3x⁴ - 3x³ - 6x -10) ÷ (x - 2)
Please help I can't find a proper answer
_5.Line segment is extended endlessly in both directions.
True or False?
Answer:
True
Step-by-step explanation:
Marie, Erica, and Katrina had some gummy worms. Erica had 2/5 cup of gummy worms. Katrina had 4/5 cup of gummy worms. If the three girls had a total of 1 4/5 cups of gummy worms, then how many cups does Marie have?
Α. 1 2/5 cups
В. 6/5 cups
C. 1 cup
D. 3/5 cups
Answer:
D
Step-by-step explanation:
7 feet 6 inch's tall how many inch's tall
Answer:
90 inches tall
Step-by-step explanation:
Answer: 90 inches tall
Step-by-step explanation:
7 x 12 = 84
84 + 6 = 90
1. A Bruster's employee is filling an ice cream cone. The cone is 6 inches tall. He fill the cone and then places a 2 inch scoop on top. How much ice cream did he serve?(volume)
2. A man is trying to enclose a round pasture. He has 150 feet of fence. How big(area) of a pasture can he enclose?
3. What is the equation for a circle with center (5,-6) and radius 12?
Answer:
Step-by-step explanation:
Problem One
The scoop is a semisphere I would assume.
The volume of a semisphere = 2/3 * pi * r^2
r = d/2
r = 2/2 = 1
Volume = 2/3 * 3.14 * 1^3
Volume = 2.093
Volume of cone
V = 1/3 * pi * r^2 * h
r = 1
h = 6
V = 1/3 * 3.14 * 1^2 * 6
V = 6.28
Total volume = 8.373
Note: this could be incorrect. It's not clear whether the 2 is a diameter or a radius.
Problem 2
Use the Circumference to find R
C = 2*pi*r
C = 150
r = ?
150 = 2 * 3.14 * r
r = 23.89
Find the area
Area = pi r^2
r = 23.89
Area = 3.14 * 23.89^2
Area = 1791.4 square feet.
Problem 3
The center is 5,-6
The formula is
(x - 5)^2 + (y+6) = 12^2
which one is a polynomial ? it’s not B!!
What is the unit rate of the ratio 5 : 1/7?
Answer:
[tex]Ratio = 35 : 1[/tex]
Step-by-step explanation:
Given
[tex]Ratio = 5 : 1/7[/tex]
Required
Determine the unit ratio
A unit ratio is represented as:
[tex]Ratio = a : 1[/tex]
Where
[tex]a \ne 1[/tex]
So, we have
[tex]Ratio = 5 : 1/7[/tex]
Divide ratio by 1/7
[tex]Ratio = 5/(1/7) : (1/7)/(1/7)[/tex]
Using a calculator, we have:
[tex]Ratio = 35 : 1[/tex]
Hence, the unit ratio is:
[tex]Ratio = 35 : 1[/tex]
If f varies inversely as g, find f when g= -6.
F= 4 when g= -6
F=
Step-by-step explanation:
f=gf=1/g
4=1/-6
=-24
find f
f=1/-6
angle measure of 36 and 57?
Answer: 7767788877787887+-77-7
A drama class has a total of 40 students. The number of males is 6 more than the number of females. How many males and how many females are in the class?
Answer:
Females = 17 and males = 23
Step-by-step explanation:
Given that,
Total no of students in the class = 40
Let no. of females = x
No. of males = 6+x
ATQ,
Total students = males + females
40 = x+6+x
40-6 = 2x
34 = 2x
x = 17
Hence, there are 17 females and (6+17= 23) males.
The floor of a ballroom has an area of 2,470 square feet.
If the length of the floor is 65 feet, what is its width?
Answer:
38
Step-by-step explanation:
2470:65=38
Dwayne plays five games of rock-paper-scissors. In order to seem unpredictable, he never chooses the same move (rock, paper, or scissors) twice in a row. How many different sequences of moves can Dwayne go through?
Answer:
48
Step-by-step explanation:
First, in this problem, you would assume that there are five numbers to multiply since Dwayne played 5 games.
In the first blank, he could choose any move, and there are three, rock, paper, and scissors. In the first blank, you would put 3. Then, since you already picked one, you can't repeat it, so you would end up with 2 for the second blank. Continuing with the next blanks, the third, fourth, and fifth spaces would be 2 choices because you cannot have the one choice you chose previously. In the end, the blanks would look somewhat like this:
3 2 2 2 2
And you would multiply all the numbers.
3 x 2 x 2 x 2 x 2
= 6 x 8
= 48
.11 A machine produces metal pieces that are cylindrical in shape. A sample of pieces is taken, and the diameters are found to be 1.01, 0.97, 1.03, 1.04, 0.99, 0.98, 0.99, 1.01, and 1.03 centimeters. Find a 99% confidence interval for the mean diameter of pieces from this machine, assuming an approximately normal distribution.
Answer:
The 99% confidence interval for the mean diameter of pieces from this machine is between 0.93 and 1.07.
Step-by-step explanation:
Sample mean:
Sum of all values divided by the number of values. So
[tex]M = \frac{1.01+0.97+1.03+1.04+0.99+0.98+0.99+1.01+1.03}{9} = 1[/tex]
Sample standard deviation:
Square root of the sum of the differences between each value and the mean, divided by the 1 less than the sample size. So
[tex]s = \sqrt{\frac{(1.01-1)^2+(0.97-1)^2+(1.03-1)^2+(1.04-1)^2+(0.99-1)^2+(0.98-1)^2+(0.99-1)^2+(1.01-1)^2+(1.03-1)^2}{8}} = 0.0657[/tex]
Confidence interval:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 9 - 1 = 8
99% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 8 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.99}{2} = 0.995[/tex]. So we have T = 3.355
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 3.355\frac{0.0657}{\sqrt{9}} = 0.07[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 1 - 0.07 = 0.93
The upper end of the interval is the sample mean added to M. So it is 1 + 0.07 = 1.07
The 99% confidence interval for the mean diameter of pieces from this machine is between 0.93 and 1.07.
If a varies directly as b and a=6, when b=1/3, find the equation that relates a and b
Answer:
A=18b
Step-by-step explanation:
A = kb
6 = k(⅓)
k = 6×3
k = 18
Answer:
a=18b
Step-by-step explanation:
use the equation of a=kb
so find k first 6=k1/3
k=18 then substitute it in the eqn
Which graph represents y as a function of x?
Answer:
D
Step-by-step explanation:
Has only one point on the x- axis.
What is the area of the following circle?
Correct answers only
Will mark brainlist
An educator believes that new reading activities for elementary school children will improve reading
comprehension scores. She randomly assigns third graders to an eight-week program in which some will use these activities and others will experience traditional teaching methods. At the end of the experiment, both groups take a reading comprehension exam. Their scores are shown in the back-to-back stem-and-leaf display. Do these results suggest that the new activities are better? Test an appropriate hypothesis and state your conclusion.
The correct answer to this open question is the following.
Unfortunately, you forgot to attach the scores shown in the back-to-back stem-and-leaf display. So we do not know what the numbers are and we do not have any reference at all
What we can do to help you is to comment on the following general terms.
There have been previous and similar experiments or projects like this in other schools in America. These results suggest that the new activities are better because extra or special reading comprehension programs better prepare students to understand what they are reading and comprehend more than basic ideas of the text.
Students that participate in these programs develop a better sense to understand and like what they are reading, considerably increasing their focus and attention.
These programs have resulted positively when trying to improve the marks of the students, compared to other traditional approaches.
A stream is flowing down a slope into a larger river. The elevation of the head of the stream is 2,200 feet above sea level. The elevation of the mouth of the stream is 1,000 feet. The horizontal distance along the stream between those two points is 63,360 feet. What is the gradient of the slope the stream is flowing over in ft/mi
Answer:
[tex]100\ \text{ft/mi}[/tex]
Step-by-step explanation:
Elevation of the head of the stream is 2,200 feet above sea level
Elevation of the mouth of the stream is 1,000 feet
Rise = [tex]2200-1000=1200\ \text{ft}[/tex]
Distance between the two points = [tex]63360\ \text{ft}=\dfrac{63360}{5280}=12\ \text{mi}[/tex] = Run
Gradient is given by
[tex]\dfrac{\text{Rise}}{\text{Run}}=\dfrac{1200}{12}\\ =100\ \text{ft/mi}[/tex]
The gradient of the slope the stream is flowing over is [tex]100\ \text{ft/mi}[/tex].
Use inductive reasoning to describe the pattern. Then find the next two numbers in the pattern.
-3, 9, -27, 81
Answer:
-243, 729
Step-by-step explanation:
pattern is to multiply by -3 to get next number
Please help this is important
Answer:
x = 18.8
Step-by-step explanation:
(6x + 19) is in linear pair vertically so,
it's value will be 180 - 6x + 19. ......( angles in linear pair are supplementary)
now, 180 - 6x + 19 is corresponding with (4x + 11)
therefore, 4x + 11 = 180 - 6x + 19
4x + 6x = 180 + 19 - 11
10 x. = 180 + 8
10 x. = 188
x = 188/10
x. = 18.8
Cross - check:-
4x + 11 = 180 - 6x + 19
4 * 18.8 + 11 = 180 - ( 6 * 18.8 +19)
86.2. = 86.2
therefore, x = 18.8 is the correct answer
(6x - 10)
((4x + 8)
8)
B
Angle Relationship: Adjacent OR Vertical_
Angle Rela
Answer:
It is Vertical Angle Relationship.PLS HELP FAST NO LINKS
Use the trapezoid to answer the question.
Choose all the attributes that describe the trapezoid.
A. It has four acute angles,
B. It has two obtuse angles.
C. It has no perpendicular sides.
D. It has one pair of parallel sides.
E. It has two pairs of parallel sides.
Answer:
D and B would be your answer
jannie recieves 150 pocket money per month in the new year his mother decided to increase his pocket money in the ratio 6 is to 5 calculate jannies adjusted monthly pocket money
Answer:
Answer and steps are in picture.
What were the total earnings of all five of these movies in the given week?
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 500$
Explanation:
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer:
The earnings of all five movies were $154,960,863.44.
Step-by-step explanation:
Thats the answer from edmentum
Completely factorize
21x³-15x²
Answer:
3[tex]x^{2}[/tex] ( 7x - 5 )
hope this answer helps you.....
Answer ASAP for BRAINLIEST (NO LINKS OR I REPORT)
Answer:
radius = 3 feet
Step-by-step explanation:
V = 1/3πr²h
15π = 1/3πr²·5
you can divide each side by 5π to get:
3 = r²/3
r² = 9
r = [tex]\sqrt{9}[/tex] which is 3
Answer:
3
Step-by-step explanation:
((r^2)h[tex]\pi[/tex] )/3=volume of a cone
[tex]15\pi =((r^2)h\pi )/3[/tex]
they say that the height is 5 so insert 5 for h
[tex]15\pi =\frac{r^2(5)\pi } {3}[/tex]
solve for r
multiply both sides by 3
[tex]45\pi =r^25\pi[/tex]
divide both sides by 5
[tex]9\pi =r^2\pi[/tex]
[tex]r=3[/tex]
Hope that helps :)
Plot (4, −34) on the coordinate plane.
Answer:
None
Step-by-step explanation:
Think about it. 4 is the x axis. -34 is the y axis. It will be located in quadrant IV.
Answer:
Run across the yard and up the tree
Step-by-step explanation:
(4, -34) (x,y)
START AT 0,0
RUN 4 spaces right as it is positive
CLIMB DOWN the tree 34 spaces as it is negative
*if you had the opposite you would run the opposite way!
answer the question!!!!!!!!!!!!!!
Answer:
Im not sure im sorry if i got it wrong but my guess is 1234 :/
Step-by-step explanation:
Answer:
4132
Step-by-step explanation:
1).4,132 (four thousand one hundred thirty-two) is an even four-digits composite number
2). 4 + 1 + 3 + 2 = 10
3). each number is greater than 0
4). 4+1= 5 3+2= 5
5). 4 is the gretes number in 4132
Can you help me please
Answer:
this is the ans
Step-by-step explanation:
hope it helps!!!
I GIVE BRAINLIEST! LOOK AT THE IMAGE BELOW.