Answer:
[tex] \frac{1}{2} c > - 1[/tex]
[tex]c > - 1 \div \frac{1}{2} [/tex]
[tex]c > - 1 \times 2[/tex]
[tex]c > - 2[/tex]
please please do a step by step of how to solve the equation and the answer! please and thank you!
Answer:
Value of x using quadratic formula (x = -4) and (x = -5)
Step-by-step explanation:
Given:
Equation
x² + 9x + 20 = 0
Find:
Value of x using quadratic formula
Computation:
Quadratic formula = [-b±√b²-4ac] / 2a
Given equation;
x² + 9x + 20 = 0
a = 1 , b = 9 , c = 20
By putting value
[-9±√9²-4(1)(20)] / 2(1)
[-9±√81-80] / 2
[-9±√1] / 2
(-9 + 1) / 2 , (-9 - 1) / 2
-8 / 2 , 10 / 2
-4 , - 5
Value of x using quadratic formula (x = -4) and (x = -5)
How do we show that two lines are parallel when using slope? How do we show they are perpendicular when using slope?
Answer:
QUESTION:
How do we show that two lines are parallel when using slope? How do we show they are perpendicular when using slope?
ANSWER:
How to determine if a line is a parallel perpendicular or neither?
The slopes of parallel lines are equal, and the slopes of perpendicular lines are opposite reciprocals. This is a worked example of determining whether given lines are parallel or perpendicular.
Step-by-step explanation:
Hope that this helps you out! :)
If you have any questions please put them in the comment section below this answer.
Have a great rest of your day/night!
Please thank me on my profile if this answer has helped you.
What is the measure of wux in circle V?
0 60°
O 90°
O
120
0
150°
Answer:
The answer would be 120! I got it right
PLEASE!!! PLEASE!!! PLEASE!!! I SWEAR TO GOD I WILL MARK YOU BRAINLIEST AS SOON AS I HAVE THE OPTION TO!!! ( Also pls don't answer unless you're actually going to help me, thank you!)
Answer:
Ok, I believe goes like this: the fourth blue box is first, the second blue box is second, the third blue box is third, and the first blue box is last.
Step-by-step explanation:
Josh drinks 3 1/2 pints of milk a day. How much is this in cups?
Answer:
7 cups
Step-by-step explanation:
1 pint is 2 cups.
Just double the number of pints to get the amount of cups
Answer:
7
Step-by-step explanation:
Anita has a success rate of 80% on free throws in basketball. She wants to know the estimated probability that she can make exactly four of five free throws in her next game. How can she simulate this scenario? Categorize each simulation of this scenario as correct or incorrect.
Roll a six-sided die five times. The
numbers 1 to 4 represent a make,
and numbers 5 and 6 represent a
miss.
Spin a spinner with three equal
sections five times. On the spinner,
one section represents a miss and
two sections represent a make.
Generate a set of five numbers using
a number generator with the numbers
0 to 9.The numbers 0 to 7 represent a
make, and 8 and 9 represent a miss.
Generate a set of five numbers using
a number generator with the numbers
0 to 5.The numbers 0 to 3 represent a
make, and 4 and 5 represent a miss.
Spin a spinner with five equal sections
five times. On the spinner, four sections
represent a make and one section
represents a miss.
Answer:
Roll a six-sided die five times. The numbers 1 to 4 represent a make,
and numbers 5 and 6 represent a miss. (Correct)
Spin a spinner with three equal sections five times. On the spinner,
one section represents a miss and two sections represent a make. (Incorrect)
Generate a set of five numbers using a number generator with the numbers
0 to 9.The numbers 0 to 7 represent a make, and 8 and 9 represent a miss. (Correct)
Generate a set of five numbers using a number generator with the numbers
0 to 5.The numbers 0 to 3 represent a make, and 4 and 5 represent a miss. (Incorrect)
Spin a spinner with five equal sections five times. On the spinner, four sections represent a make and one section represents a miss. (Correct)
Step-by-step explanation:
Answer:
Roll a six-sided die five times. The numbers 1 to 4 represent a make,
and numbers 5 and 6 represent a miss. (Correct)
Spin a spinner with three equal sections five times. On the spinner,
one section represents a miss and two sections represent a make. (Incorrect)
Generate a set of five numbers using a number generator with the numbers
0 to 9.The numbers 0 to 7 represent a make, and 8 and 9 represent a miss. (Correct)
Generate a set of five numbers using a number generator with the numbers
0 to 5.The numbers 0 to 3 represent a make, and 4 and 5 represent a miss. (Incorrect)
Spin a spinner with five equal sections five times. On the spinner, four sections represent a make and one section represents a miss. (Correct)
Step-by-step explanation:
Which of the following functions has an exponential growth of 3%?
A. f(x) = 1500(0.03)^x
B. f(x) = 2500(3)^x
C. f(x) = 975(1.03)^x
D. f(x) = 300(0.97)^x
The school buses at a middle school each hold 38 students. The school has, b, buses.
Write an equation that shows the total number of students, s, that can be carried by all of its buses.
Answer:
38bs
Step-by-step explanation:
multiply the number of students that each bus can hold by the no of buses 38s×b=38bs
PLEASE HELP WILL GOVE BRAINLY
Answer:
25.3
Step-by-step explanation:
if its just reflections, i dont think the length has changed at all,,
Body mass index, of 20-year-old men is normally distributed with a mean of 23 and a standard deviation of 3.8. Twenty-year-old Allan's BMI has a z-score of 1.25. What is Allan's BMI?
Answer:
Allan's BMI is 5.05
Step-by-step explanation:
Answer:
The correct answer is 27.75
Step-by-step explanation:
1.25•3.8+23 is the formula
1.25•3.8=4.75
4.75+23=27.75
So 27.75 is your answer
A teacher places 10 marbles in a bag.
- 2 blue marbles
- 3 red marbles
- 5 yellow marbles
A student draws one marble from the bag, does not replace it, then draws another marble from the bag. What is the probability that the first marble will be yellow and the second marble will be red?
Step-by-step explanation:
Since they do not replace it the total amount of marbles are the same
Kayla did her homework as soon as she got home from school, it took her 2/3 of an hour, how many minutes did it take her to do her homework? you need a step by step explanation
Answer:
40 minutes
Step-by-step explanation:
there are 60 min in an hour. 60/3= 20. That Is 1/3 of an hour. 20*2= 40. That is 2/3 of an hour.
Guys pls help me!!!!!!!!
Answer:
D. y = -x^2 + 1
Step-by-step explanation:
Find the slope between two points:
(-2, 0) and (-9, 8)
Answer:
y = -1.14286x - 2.28571 (slope of the line is -1.14286)
Step-by-step explanation:
The price of a video game system dropped by 18%. What is the current price if it used to be $140?
Answer:
$114.80
Step-by-step explanation:
Multiply 18% and 140 to find the drop price.
.18 x 140= $25.20 now subtr. this from the original price
$140.00-$25.20=$114.80 is the sale price
PLEASE HELPPP WILL GIVE BRAINLIEST!!!
Answer:
Step-by-step explanation:
where is the question?
rational number and irrational number
Answer:
Rational numbers are the numbers that can be expressed in the form of a ratio (P/Q & Q≠0).
Irrational numbers cannot be expressed as a fraction. But both the numbers are real numbers and can be represented in a number line.
Step-by-step explanation:
y = x - 6
5x - 2y = -30
Answer:
(-14,-20)
Step-by-step explanation:
hope it helps!
Answer:
x=-14, y=-20
Step-by-step explanation:
3x – 9y + 2x – 2x
simplify
Answer:
3x-9y
Step-by-step explanation:
both 2x's in the equation cancel out to zero leaving the answer
Find l.
10 in.
l
b = [?] in.
6 in.
Answer:
By applying Pythagoras theorem
Answer is √[109] inch
An economist studying fuel costs wants to estimate the mean price of gasoline in her state on a certain day. On that day, she takes an SRS of 121212 gas stations and finds the sample mean price (in dollars per gallon) is \bar x=\$2.29 x ˉ =$2.29x, with, \bar, on top, equals, dollar sign, 2, point, 29 with a standard deviation of s_x=\$0.20s x =$0.20s, start subscript, x, end subscript, equals, dollar sign, 0, point, 20. The prices in the sample are roughly symmetric with no distinct outliers. Based on this sample, which of the following is closest to a 90\%90%90, percent confidence interval for the mean price of gasoline that day in her state?
Answer:
($2.19,$2.39)
Step-by-step explanation:
khan
Based on this sample, the confidence interval which is closest to a 90%, for the mean price of gasoline that day in her state is ($2.19, $2.39).
What is random sample?Random sample is the way to choose a number or sample in such a manner that each of the sample of the group has an equal probability to be chosen.
When the sample size is less than 30, the formula which is used is,
[tex]\overline x\pm t.\dfrac{s}{\sqrt n}[/tex]
Here, n is the sample size, [tex]\overline x[/tex] is the sample mean, s is the standard deviation.
Economist, takes an SRS of 12 gas stations. The sample size for the given problem is 12,
[tex]n=12[/tex]
Thus, degree of freedom,
[tex]df=12-1\\df=11[/tex]
In the t table, for df 11, the value of t is 1.796.
An economist studying fuel costs wants to estimate the mean price of gasoline in her state on a certain day.
On that day, she takes an SRS of 12 gas stations and finds the sample mean price (in dollars per gallon) is,
[tex]\bar x=2.29[/tex]
With a standard deviation of
[tex]s_x=0.20[/tex]
Put the values in the above formula,
[tex]2.29\pm 1.796.\dfrac{0.20}{\sqrt 12}\\2.29\pm 0.1037\\2.29+0.1037=2.3937\\2.29- 0.1037=2.1863[/tex]
Thus, based on this sample, the confidence interval which is closest to a 90%, for the mean price of gasoline that day in her state is ($2.19, $2.39).
Learn more about the random sample here;
https://brainly.com/question/17831271
find the area of the figure
Which of these animals swims at the lowest altitude?
emperor penguin: -1,500 feet
sperm whale: -6,500 feet
leatherback turtle: -4,200 feet
Weddell seal: -1,970 feet
Answer:
Sperm whale
Step-by-step explanation:
6500 feet is the greatest depth of the four
What is the chance that a given car has a problem with the fuel line if it is make D? A. 0.0078% B. 0.0110% C. 0.0080% D. insufficient data
Answer:
0.0110%
Step-by-step explanation:
Answer:
B 0.0110%
Step-by-step explanation:
help with math please will give brainliest
Answer:
I will helo you if you help mr
Step-by-step explanation:
Deal?
“For any numbers x and y, where x >0 and y > 0”
Answer:
I believe that the answer is true I could be wrong though
g(x) = -4 log2 (x + 2) +1
Answer: -2
x=-G-1= -2
4log(2)
Step-by-step explanation:
Find the volume of the figure
Answer:
384
Step-by-step explanation:
L times W times H
Find the value of a, b, and c.
x2 – 5x – 14 = 0
Helpppp
Answer:
a = 1
b = -5
c = -14
Step-by-step explanation:
x² - 5x - 14 = 0
where,
a = 1
b = -5
c = -14
-TheUnknownScientist
Answer:
1
-5
-14
Step-by-step explanation:
hope it's helpful
Problem ID: PRABEAF4
Suppose that during its flight, the elevation e (in feet) of a certain airplane and its time t, in minutes since takeoff, are related by a linear equation. Consider the graph of this equation, with time represented on the horizontal axis and elevation on the vertical axis. For the following situation, decide if the slope is positive, zero, or negative:
The plane is cruising at an altitude of 37,000 feet above sea level.