The likelihood that a correlation exists in a population, based on knowledge of the actual value of r in a sample from that population is the statistical significance
Solve: (x + 1)(x ^ 2 - 5x + 10) - 12 = 0
[tex]~~~~~(x+1)(x^2 -5x +10) -12= 0\\\\\implies x^3 -5x^2 +10x +x^2 -5x +10 -12 =0\\\\\implies x^3 -4x^2 +5x -2 =0\\\\\implies x^3 -2x^2-2x^2+4x+x-2=0\\\\\implies x^2(x-2)-2x(x-2)+(x-2)=0\\\\\implies (x-2)(x^2 -2x +1)=0\\\\\implies (x-2)(x-1)^2 = 0\\\\\implies x =2 , ~~ x = 1[/tex]
PLEASE ANSWER - BRAINLIEST IF 2 ANSWERS - 5 STAR RATING - THANKS (PROFILE TOO)
The formula for the volume of a cylinder is
V = πr2
h, where r is the radius and h is the height.
A cylinder has a radius of 3 cm and a height
of 10 cm.
Which of the following is closest to the volume
of the cylinder?
a. 188 cm3
b. 283 cm3
c. 888 cm3
d. 8882 cm3
Answer:
b. 283 cm3
Step-by-step explanation:
V = pi * r^2 * h
V = 3.14 * 3^2 * 10
V = 282.6 rounded to 283cm3
Well my question says Mona 28.086 seconds. Ashley 27.23 Seconds what's the difference of times second
Answer:
0.856 seconds
Step-by-step explanation:
just subtract mona's time from ashley's
At a candy store you could get 3 giant lollipops for $4.89. How much would it cost to buy 10 lollipops?
Answer:
16.3
Step-by-step explanation:
they are each 1.63 hope this helps pls mark as brainiest
Answer: $16.30
Step-by-step explanation:
$4.89÷3= $1.63
$1.63×10= $16.30
In julie's class there are 18 girls and only 6 boys. What percent of the class are boys?
Answer:
25%
Step-by-step explanation:
18+6=24
[tex] \frac{6}{24} [/tex]
6÷24=0.25
0.25×100=25%
Help and show work please!!
Answer:
Between 9 and 10
Step-by-step explanation:
I just multiplied 2/3 by 14
Does that help?
Answer:
C
Step-by-step explanation:
first do 14/1 times 2/3
it will be 28/3, then divide that
it should be 9.3 repeating
which is in the range of 9 and 10
the car ride from kileys house to the airport
Answer:
this question provides no content for me to answer but i want the points and i will be taking them Thankyou!
Step-by-step explanation:
here is the same sentence translated in spanish
el viaje en coche desde la casa de kileys hasta el aeropuerto
A bag contains 6 blue marbles, 2 red
marbles, 4 yellow marbles, and 8 green
marbles. What is the probability of drawing
a red marble at random from the bag?
Part F About what is the average change in distance for each increase of 1 in the iron number ? What does this mean in terms of the situation?
Part D
What is the y-intercept of the correct graph? What is the y-intercept of the incorrect graph? Are the y-intercepts the same?
The average change in distance for each increase of 1 in the iron number is -10, and the y-intercept of the graphs are not the same
The average change in distance?From the graph, we have the following points:
(x,y) = (4, 145) and (3,155)
The average change in distance is calculated using:
[tex]m = \frac{y_2 - y_1}{x_2 -x_1}[/tex]
So, we have:
[tex]m = \frac{155 - 145}{3 - 4}[/tex]
Evaluate
m = -10
Hence, the average change in distance for each increase of 1 in the iron number is -10
What the average rate in (a) represents?The rate, -10 in (a) means that:
The distance decreases by 10 yards for each number of iron
The y-interceptThe y-intercept is the point where the graph crosses the y-axis
From the attached graphs, we have:
The correct graph has a y-intercept of 185The incorrect graph has a higher y-intercept (195)Hence, the y-intercept of the graphs are not the same
Read more about linear regression at:
https://brainly.com/question/17844286
#SPJ1
help please help me
Answer:
45.4
Step-by-step explanation:
A=πr2=π·3.82≈45.3646
What is the mean and median of the data
4.7,8.51,6.5,7.42,9.64,7.2,9.3
Answer:Median=7.42
Mean=7.61
Step-by-step explanation:
If Mary paid $20.44 for 7.3 pounds of strawberries, what was the price of 1
pound of strawberries?
Answer:
$2.31
Step-by-step explanation:
Kim was 11 years old seven years ago.
How old is she now? Write the equation
and solve.
Answer:
She would be 18 years old.
Step-by-step explanation:
Since she was 11 years old 7 years ago, the equation would be:
11+7=18
Answer:
The answer is 18
Step-by-step explanation:
11+7=18
If kim was 11 years old 7 years ago then you add the years it has been ago and then you get your answer 18
Please consider Brainliest for my answer is correct
HELPPP frenss!!! HURRY
Answer:
8
Step-by-step explanation:
When you calculate it -4/3 times is 4 so add 4 to that and you get 4. Hope this helps
Does anybody know this?
Answer:
here you go , all four completed, took me some time , hipe i was able to help you out tho
4. The length of a rectangle is 18 centimeters and the width is 6 centimeters. A similar
rectangle has a width of 10 centimeters. What is the length of the missing side?
Answer:
30 cm
Step-by-step explanation:
So what we are given here is a case of similar figures.
When we are given similar figures, the ratio of the width of both figures should be similar to the ratio of the length of both figures.
I'll demonstrate it in the following problem.
We know one rectangle has a length of 18 cm and a width of 6cm.
The other rectangle has a width of 10 cm.
Let's take a ratio of the width of both rectangles.
We take the width of 6 cm for the first rectangle to the width of 10 cm for the second rectangle.
w1 = 6 cm
w2 = 10 cm
6 cm : 10 cm = 3 : 5
The ratio given is 3 : 5. Let's use these ratios to find lengths.
l1 = 18 cm
l2 = x cm
3 : 5 = 18 : x
To find x, we just solve this like an equation, where we let ratios be division signs.
3/5 = 18/x
Multiply both sides by 5x
3x = 90
Divide both sides by 3
x = 30 cm
The length of the missing side is 30 cm. We found the answer to the length by using the ratios obtained from the widths.
phineas has more jolly ranchers than alan. if alan has 10 jolly ranchers how many do they have in total
Answer:
We cannot know.
Step-by-step explanation:
It only mentions that Phineas has more jolly ranchers than Alan. Since Alan has 10 jolly ranchers, the number of jolly ranchers Phineas could have is 11, 12, 13, 14... and so on. Phineas could have 1 billion jolly ranchers.
A person's paycheck varies directly as the number of hours worked. Bill received $75 for 15 hours. How much would he receive for working 32 hours?
Answer:
$160
Step-by-step explanation:
75/15=5 which means he makes $5 per hour
5*32=160
I NEED HELP PLEASE!!!!!
What's the answer to the question below?
A penny weighs 2.5 grams while a dime weighs about 2.27 grams. How much do a penny and two dimes weigh?
Answer:
[tex]\huge\boxed{\sf 7.04\ grams}[/tex]
Step-by-step explanation:
A penny = 2.5 grams
A dime = 2.27 grams
2 dimes = 2.27 × 2 grams
= 4.45 grams
Weight of a penny and 2 times:
= 2.5 + 4.54
= 7.04 grams
[tex]\rule[225]{225}{2}[/tex]
Which system of equations is represented by the graph?
one parabola opening upwards and one parabola opening downwards intersecting at points (2, 12) and (-2, 12)
y = x2 + 4x
y = –x2 + x + 12
y = x2 – 8
y = –x2 +16
y = x2 + 8
y = –x2 + 16
y = x2
y = –x2 – x –16
Answer:
See belowStep-by-step explanation:
Find the value of y when x = 2 or x = -2 to determine the system
It is easy to calculate and confirm the correct equations
y = –x² + 16y = x² + 8See the attached to verify the answer
Check option C
y=-x²+16Put (2,12)
12=-(2)²+16=-4+16=12And
y=x²+8Put(-2,12)
12=(-2)²+8=4+8=12Hence verified
Option C is correct
Banana chips sell for 44¢ per 100 g.
How much would 450 g of banana chips cost?
Answer:
198 cents or
1.98 dollars
Step-by-step explanation:
Solve for t.
–17 = –9 + 4t
Answer:
[tex]\boxed{\sf{t=-2}}[/tex]Step-by-step explanation:
To solve for t, you have to isolate it on one side of the equation.
-17=-9+4tFirst, you have to switch sides.
→ -9+4t=-17
Add by 9 from both sides.
[tex]\Longrightarrow: \sf{-9+4t+9=-17+9}[/tex]
Then, you solve it.
-17+9=-8
4t=-8
Divide by 4 from both sides.
[tex]\sf{\dfrac{4t}{4}=\dfrac{-8}{4}}[/tex]
Solve.
Divide the numbers from left to right.
-8/4=-2
[tex]\Longrightarrow: \boxed{\sf{t=-2}}[/tex]
Therefore, the correct answer is t=-2.I hope this helps. Let me know if you have any questions.
Answer:
[tex]t = -2[/tex]
Step-by-step explanation:
Step 1: Add 9 to both sides
[tex]-17 = -9 + 4t[/tex]
[tex]-17 + 9 = 4t - 9 + 9[/tex]
[tex]-8 = 4t[/tex]
Step 2: Divide both sides by 4
[tex]\frac{-8}{4} = \frac{4t}{4}[/tex]
[tex]-2 = t[/tex]
Answer: [tex]t = -2[/tex]
please help. will mark brainliest
Step-by-step explanation:
since it is a straight line .
angle 4+ angle 5 = 180
40+ angle 5 = 180
angle 5 = 140
Answer:
A. 140
Step-by-step explanation:
well, one way to look at it is that ∠4 + ∠5 = 180
we are GIVEN the info that ∠4 = 40
therefore 180 - 40 - ∠5
180 - 40 = 140
Solve for X and identify the angle relationship!!
PLSS I NEED THIS ASAP!
(WILL GIVE BRAINLIEST)
Answer: x = 10 and the angles are both corresponding angles
Step-by-step explanation: it is what it is
Corresponding angles are equal
4x+16=564x=56-164x=40x=40/4x=10(NO BOTS) NO TROLLS) help me with this answer!
(WILL BE REPORTED)
Answer:
2nd one
Step-by-step explanation:
Answer:
[tex]\frac{35}{7} =\frac{70}{14} =\frac{105}{21} =\frac{140}{28} =\frac{5}{1}[/tex]
Step-by-step explanation:
The unit rate is x:1, like 60 miles to 1 hour, or 60/1. To find the answer, put the number of textbooks over the number of students and then simplify the fractions- you will see that they all boil down to 5/1, or 5 textbooks per 1 student.
A line intersects the points
(12, -2) and (6, -8).
What is the slope of the line in
simplest form?
m = [?]
Answer:
1
Step-by-step explanation:
The formula for slope is y2 - y1 over x2 - x1.
-8--2 = -6
6-12= -6
-6/-6 = 1
Write an equation in slope-intercept form for the line that is parallel to y=x−6 and that passes through the point (−5,−6).
Answer:
Equation: y = x - 1
a slope of 1, and a y-intercept of -1Step-by-step explanation:
Given: y = x - 6
Slope-Intercept Form: y = mx + b -
where:
m is the slopeb is the y-intercept (when x = 0)Note: parallel lines have the same slope
1. Determine the slope and y-intercept of the given equation:
⇒ y = x - 6 has a slope of 1, and a y-intercept of -6
2. Find the equation of the line parallel line that passes through the point (-5,-6):
⇒ y = x + b [substitute -5 for x and -6 for y]
⇒ -6 = -5 + b [add 5 to both sides]
⇒ -6 + 5 = -5 + 5 + b
⇒ -1 = b
Equation: y = x - 1
3. Check your answer using point (-5, -6):
⇒ y = x - 1
⇒ -6 = -5 - 1
⇒ -6 = -6 ✔
This statement is correct
Therefore, the equation of the line is y = x - 1
Who Is The Father Of Math?
Answer:
The father is Archimedes
Brainliest!!
Archimedes is the father of math. :)
What’s are the roots of the function?
Please help!
Answer:
-3, 2
Step-by-step explanation:
The roots of a function are also called the "zeros" or "x-intercepts." They are the values of x where the function value is zero.
__
Here, the graph crosses the x-axis at x=-3 and x=2. The roots of the function are -3 and 2.
Find the value of k for which the equation x2+k(2x+k-1)+2=0 has no real roots.
Please answer it properly. Thank you.
Answer:
Please find the answer attached :)