Answers
Answer:
https://www.symbolab.com/solver/step-by-step/x%5E%7B2%7D%20%2B5x%2B3%3D0
Step-by-step explanation:
Answer:
[tex]x = \frac{-5\pm\sqrt{13}}{2}[/tex]
Step-by-step explanation:
Hello!
We can solve the quadratic by using the Quadratic Formula.
Standard form of a Quadratic: [tex]ax^2 + bx +c= 0[/tex]
Quadratic Formula: [tex]x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}[/tex]
Given our equation: [tex]x^2+5x+3 = 0[/tex]
a = 1b = 5c = 3Plug it into the formula and solve:
[tex]x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}[/tex][tex]x = \frac{-5\pm\sqrt{5^2 - 4(1)(3)}}{2(1)}[/tex][tex]x = \frac{-5\pm\sqrt{25-12}}{2}[/tex][tex]x = \frac{-5\pm\sqrt{13}}{2}[/tex]This cannot be simplified further. The answer is [tex]x = \frac{-5\pm\sqrt{13}}{2}[/tex].
Related Questions
Pablo made a dot plot and histogram to show how many times last month each student in a class
played sports. However, the histogram is incorrect.
Times Played Sports Last Month
10
Times Played Sports Last Month
Number of students
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Number of times
5-9
10-14 15-19
Number of times
Answer the questions to show how Pablo can fix the histogram to match the dot plot.
Answers
Answer:
D
Step-by-step explanation:
Because I know
Answer:
1. The bar interval is correct, the height does not need to be changed.
2. The bar interval is not correct, the height has to change higher by 1.
3. The bar interval is not correct, the height has to change lower by 1.
4. The bar interval is correct, the height does not need to be changed.
I hope this helped
Which speeds are equal to 1/2 mile per hour? Mark all that apply.
5/6 mile/5/12 hour
1/4 mile / 1/2 hour
1/10 hour / 1/5 mile
3/8 mile / 3/4 hour
2/3 hour / 1/3 mile
4/5 mile / 4/10 hour
/
Answers
answer :
3/8 mile / 3/4 hour
answer but no links. quickly please
Answers
Answer:
1. 18
2.3 and 3/4
3.6 and 1/4
Step-by-step explanation:
3 by 6 equals 18 since 12 divided by 2 is 6
15 divided upon 4 is 3.75 or 3 3/4
50 divided by 8 equals 6.25 or 6 1/4
The box plot show the price of textbooks at a local high school. What range describe the middle 50% if the price (p) of the textbooks?
Answers
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete, as the box plot is not attached.
However, the interpretation of the question is to determine the inter-quartile range (IQR) ; this represents the middle 50% of scores
To answer this question, I will make use of the attached box plot.
IQR is calculated as:
[tex]IQR = Q_3 - Q_1[/tex]
[tex]Q_1[/tex] and [tex]Q_3[/tex] are represented by the vertical edges of the rectangle in the box plot. [See attachment]
Reading [tex]Q_1[/tex] and [tex]Q_3[/tex], we have:
[tex]Q_1 = 37[/tex]
[tex]Q_3 = 50[/tex]
The IQR is:
[tex]IQR = 50 - 37[/tex]
[tex]IQR = 13[/tex]
Hence, the range that describes the middle 50% of the attached plot is 13
Name a pair of vertical angles
Answers
Answer:
Angle 2 and Angle 4 are vertical angles
A principal of a school with 484 students collected information about how many of the students wear glasses
Answers
Answer:
students
Step-by-step explanation:
you're missing a part?
Given the following exponential function, identify whether the change represents
growth or decay, and determine the percentage rate of increase or decrease.
y = 190(0.93)
Answers
how do i do this?.......
Answers
Order of operations (from high priority to low priority):
Parentheses
Exponents
Multiplications/Division
Addition/Subtraction
All in left to right.
2 ÷ (5 + 3)⁻¹ ÷ 4
2 ÷ (8)⁻¹ ÷ 4
2 ÷ 1/8 ÷ 4
16 ÷ 4
= 4
2:1/8:4=2*8/4=16/4=1
Three students, Brayden, Adrian, and Aubrey, line up one behind the other. How many different ways can they stand in line?
Answers
0.8 k - 20 = -60
what does ‘k’ equal?
Answers
Answer:
K = -50
Step-by-step explanation:
0.8(-50) - 20 = -60, because 0.8(-50) = -40, and when you subtract a negative you would "add" those numbers. So it would be 40 + 20 = 60, which would make it -60.
Answer:
k equals -50Step-by-step explanation:
0.8 k - 20 = -60
0.8k = -60 + 20
0.8k = -0
k = [tex]\frac{-40}{0.8}[/tex]
k = -50
ANSWER NUMBER 2 PLEASE
1. The following test scores were collected from a math class: 84, 72, 78, 80, 75, 88, 43, 90, 75. Determine the outlier.
The outlier is 43.
2. Based on the data set in #1, which measure would better describe the test scores?
A. Mean
B. Median
Answers
Answer:
B: Median
Step-by-step explanation:
If there is an outlier then the median is better.
If there isn't an outlier then the mean is better.
my question is BELOW so answer is pls due today
Answers
David and his dad are building a room in the basement. They want the
room to have an area of 150 ft?. If one wall is 11.25 ft. long, how long must the other
wall be? Show your work.
Answers
Suppose you know that the prices paid for cars are normally distributed with a MEAN or $17,000 and a STANDARD DEVIATION of $500. Use the EMPIRICAL RULE to find the percentage of buyers who paid
Answers
Complete question :
Suppose you know that the prices paid for cars are normally distributed with a MEAN or $17,000 and a STANDARD DEVIATION of $500. Use the EMPIRICAL RULE to find the percentage of buyers who paid between 15500 and 17000
Answer:
49.85%
Step-by-step explanation:
Mean = 17000
Standard deviation = 500
Obtain the Z score, which is the number of standard deviations from the mean :
((17000 - 17000) / 500) = 0
((15500 - 17000) / 500) = - 3
-3 to 3 = (3 standard deviations)
However,
The value here is (-3 to 0) ; which is only 3 standard deviations to the left.
3 standard deviation = 99.7% (empirical rule)
Since it is only (-3 to 0) ; which is only 3 standard deviations to the left. ; the percentage will be halved
99.7% / 2 = 49.85%
Hence, percentage of buyers who paid between 15500 and 17000 is 49.85%
10) What is the value of x in the figure below?
Answers
Answer:
x=68
Step-by-step explanation:
let y equal the vertical angles
49+55+ y= 180
y=76
vertical angles are equal
35+76+x=180
x=68
The Hiking Club plans to go camping in a State park where the
probability of rain on any given day is 30%. What is the probability
that it will rain on exactly one of the five days they are there? Round
your answer to the nearest thousandth.
Answers
Answer:
0.013
Step-by-step explanation:
Use binomial probability:
P = nCr pʳ (1−p)ⁿ⁻ʳ
where n is the number of trials,
r is the number of successes,
and p is the probability of success.
Given n = 6, p = 0.69, and r = 0 or 1:
P = ₆C₀ (0.69)⁰ (1−0.69)⁶⁻⁰ + ₆C₁ (0.69)¹ (1−0.69)⁶⁻¹
P = (1) (1) (0.31)⁶ + (6) (0.69) (0.31)⁵
P = 0.013
Fifteen 7th graders were asked how many hours they spend doing homework each week and how many hours they spend watching television each week. the results are shown in the dot plots below
Answers
Answer:
A.
18 > 14, trueB.
12 - 16 = -4, trueC.
Mean:
Homework = (4 + 6*2+10*3+12*2+14*4+16*2+18)/15 = 11.73Television = (0 + 10*3+12*1+16*3+18*4+20*3)/15 = 14.8The difference:
14.8 - 11.73 > 1, NOT trueD.
True
What is the value of x?
A. 25°
B. 50°
C. 55°
D. 75°
E. 80°
Answers
Answer:
Option Bx = 50°Step-by-step explanation:
By the condition,
25° + 105° + x = 180° [Angle sum property of triangle]
=> 130 + x = 180
=> x = 180 - 130
=> x = 50° (Ans)
Factor this quadratic equation x^2-3x=0 showing all steps
Answers
Answer: x = 0; x = 3
Step-by-step explanation:
x^2 - 3x = 0
1. x is a common factor, so factor it out
x(x - 3) = 0
2. set both factors equal to zero
x = 0
x - 3 = 0
3. final answer
x = 0
x = 3
What would the simplified equivalent of (3^-3)^2 be?
Answers
Answer:
3
-----
2
Step-by-step explanation:
Find the unit rate.if 5 pounds of potatoes cost $8.60, how much does one pound of potatoes cost.
Answers
Answer:
1.72
Step-by-step explanation:
8.60= 5 Pounds
So you divide by 5
8.60/5
1.75
PLEASE HELP I don't understand this stuff yet. Brainliest give away!
Answers
Answer: I think the answer is B
Step-by-step explanation: My reasoning is that since some houses are expensive, and some houses are very cheap, the average house is in the middle, and that is the median.
Answer:
c bc he should use the median cause it is in the affect the mean
Step-by-step explanation:
Solve for x and round your answer to the nearest tenth.
Answers
Answer:
I believe it should be 32.9
Step-by-step explanation:
PLEASE HELP ME, THIS IS DUE TODAY!!!
Answers
Answer:
i think im late...
Step-by-step explanation:
One more than the product of 17 and Matt's savings
Use the variable m to represent Matt's savings.
Answers
Answer:
17m=2
Step-by-step explanation:
hey plz pick mine as the brainliest?
 What is the volume of this cone?
Answers
Answer:
C) volume = 84.8 m³
Step-by-step explanation:
volume = 1/3πr²h = 1/3(3.14)(3²)(3) = 84.8 m³
Answer:
[tex]volume = 28.3m^3[/tex]
Step-by-step explanation:
[tex]volume \: of \: cone = \frac{1}{3} \times 3 \times 3.14 \times { 3}^{2} = 28.3{m}^{3} [/tex]
hii please help i’ll give brainliest
Answers
Danielle earns a 7.5% commission on everything she sells at the electronics store where she works. How much commission did she earn last week if she sold $3,500 in electronics merchandise?
Answers
Answer:
$262.5
Step-by-step explanation:
Given data
Commission earned= 7.5%
Sales for last week= $3,500
Let us find the amount of the commission
=7.5/100* 3500
=0.075*3500
=$262.5
Hence the commission earned last week is
$262.5
Matt's savings account earns 2% interest each year. He had $200.00 in his savings account
at the beginning of the first year. If he did not deposit or withdraw any money, what is the
value of Matt's savings account at the end of the second year?
Answers
Answer:
208.08
Step-by-step explanation:
math
Answer:
204
Step-by-step explanation:
2% of 200 is 2 so after second year it will be 200,+2+2 that is 204
pls help ! tysm!!!!!!!!!!
Answers
Answer:
332
Step-by-step explanation:
332