Answer:
x = - 2, x = - 1
Step-by-step explanation:
Given
f(x) = x² + 3x + 2
To find the zeros let f(x) = 0, that is
x² + 3x + 2 = 0
Consider the factors of the constant term (+ 2) which sum to give the coefficient of the x- term (+ 3)
The factors are + 2 and + 1, since
2 × 1 = 2 and 2 + 1 = 3, thus
(x + 2)(x + 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 2 = 0 ⇒ x = - 2
x + 1 = 0 ⇒ x = - 1
Answer:
Real Zeros: -1, -2
Step-by-step explanation:
[tex]x^{2} +3x+2=0\\[/tex]
Plug into quadratic equation formula:
[tex]\frac{-3+\sqrt{3^{2}-4ac} }{2(1)}= -1 \\\frac{-3-\sqrt{3^{2}-4ac} }{2(1)}= -2[/tex]
Hope this helped!
When sound is created it travels to the ear through a
Answer:
medium
Step-by-step explanation:
The right answer is Medium, because to travel through the ear the sound wave must go through the ear drum.
Answer:
Medium
Step-by-step explanation:
your welcome loves
Which of the points shown below are on the line given by the equation y = x + 3
Answer: B
Step-by-step explanation:
2/3 of a number is ten what’s the number
Answer:
15
Step-by-step explanation:
Please help!
Jamal deposited $4,253 in a savings account earning 1% interest, compounded annually.
To the nearest cent, how much will he have in 4 years?
Use the formula B = p(1 + r)t, where B is the balance (final amount), p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
Answer:
4425.7
Step-by-step explanation:
Maya can run 18 miles in 3 hours, and she can bike 18 miles in 2 hours.
What is Maya’s biking speed?
Answer:
19 miles per hour
Step-by-step explanation:
Solve -16x = -80.
1.)-5
2.)5
3.)-96
4.)-64
Answer:
5
Step-by-step explanation:
Answer:
The final answer is [tex]x = 5[/tex], which would be the second choice.
Step-by-step explanation:
Solve the equation:
[tex]-16x = -80[/tex]
-Divide both sides by -16:
[tex]\frac{-16x}{-16} = \frac{-80}{-16}[/tex]
[tex]x = 5[/tex]
So, the final answer is [tex]x = 5[/tex] .
how many 3 combinations can you make with 11 numbers
Answer:
9
Step-by-step explanation:
Write and solve a proportion to answer the question.
72 is what percent of 45?
Answer:
160% is for 72 of 45
Help please!!!! 50 points!!!!
Amara has taken out a fixed rate mortgage for $125,000 at 4.04% for 20 years, or 240 months. Her payments are $730. What is the total cost of the loan?
A. $130,050
B. $175,200
C. $211,680
D. $226,000
Answer:
a
Step-by-step explanation:
i went onto a mortgage calculator and thats what i got, idk how to explain through
PLEASE HELP! The frequency of a radio wave varies inversely as its wavelength. If a 1,250-meter wave has a frequency of 240 kilohertz, what is the wavelength of a wave that has a frequency of 500 kilohertz? Round your answer to the nearest meter.
Answer:
600 m
Step-by-step explanation:
I attend LUOA as well.
Answer:
600m
Step-by-step explanation:
I, too, attended LUOA.
hope this helps:)
For a point to be a solution to a
system of inequalities, the point
must make_ of the
inequalities true.
Answer:
The signs.Step-by-step explanation:
For a point to be a solution to a system of inequalities, the points must make the signs of the inequalities true.
For example, the points must give results like 2<3 or 0>-2, these are true solutions. If the points gives 1>2, then that point is not a solution.
At the start of 2014 Mikes car was worth £12000. the value of his car decreased 30% every year.
work out the value of the car at the start of 2017
answer these 6 questions
SOLVE these
1.(13x-15=12x+16)
2.(9x-19=2x-5)
3.(16x-35=7x-8)
4.(6x-5=13-3x)
5.(4x-9=6-x)
6.(5x-2=10-x)
Answer:
[tex]1)13x - 15 = 12x + 16 \\ 13x - 12x = 15 + 16 \\ x = 31[/tex]
[tex]2)9x - 19 = 2x - 5 \\ 9x - 2x = 19 - 5 \\ 7x = 14 \\ \frac{7x}{7} = \frac{14}{7} \\ x = 2[/tex]
[tex]3)16x - 35 = 7x - 8 \\ 16x - 7x = 35 - 8 \\ 9x = 27 \\ \frac{9x}{9} = \frac{27}{9} \\ x = 3[/tex]
[tex]4)6x - 5 = 13 - 3x \\ 6x + 3x = 5 + 13 \\ 9x = 18 \\ \frac{9x}{9} = \frac{18}{9} \\ x = 2[/tex]
[tex]5)4x - 9 = 6 - x \\ 4x + x = 9 + 6 \\ 5x = 15 \\ \frac{5x}{5} = \frac{15}{5} \\ x = 3[/tex]
[tex]6)5x - 2 = 10 - x \\ 5x + x = 2 + 10 \\ 6x = 12 \\ \frac{6x}{6} = \frac{12}{6} \\ x = 2[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
Answers:
31
2
3
2
3
2
Look at the attached picture
Hope it will help you
Good luck on your assignment
Angle relationships with parallel lines can someone help me please
Answer:
x = 132
Step-by-step explanation:
The angles are supplementary so the add to 180 degrees
x+48 = 180
Subtract 48 from each side
x+48-48 = 180-48
x =132
Are the ratios 3:9 and 1:3 equivalent
Answer:
[tex]yes \\ 1 : 3 = 3 : 9[/tex]
Step-by-step explanation:
yes.
[tex]1 : 3 = 3 : 9[/tex]
Let see how is it possible,
[tex]3 \times 1 : 3 \times 3 = 3 :9 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 3 : 9 = 3 : 9[/tex]
Also,
[tex]1 : 3= 3 \div 3 : 9 \div 3 \\ 1 : 3 = 1 : 3[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
pls help me i dont understand pls help
Answer:
its 11 by 6
Step-by-step explanation:
hope it works out
Answer:
The correct answer is 11/6
Step-by-step explanation:
Hope it works out !!
The number of laughs (denoted by L) can be defined as a function of the number of jokes (denoted by J), the amount of knowledge about the joke material (denoted by K), and the familiarity with the jokes (denoted by F) using this formula:
Answer:
L = f(J, K, F)
L = (JK²)/F
So, as the formula appears, the appropriate units will be option A.
Unit for number of laughs = (jokes*knowledge²) / familiarity
Just like the formula suggests.
Step-by-step explanation:
Complete Question
The number of laughs (denoted by L) can be defined as a function of the number of jokes (denoted by J), the amount of knowledge about the joke material (denoted by K) and the familiarity with the jokes (denoted by F) using this formula: L = (JK²)/F
Select an appropriate unit for number of laughs:
A) (jokes*knowledge²) / familiarity
B) familiarity / (jokes*knowledge²)
C) familiarity² / (jokes*knowledge)
D) (jokes*knowledge) / familiarity²
Solution
L = f(J, K, F)
where
L = number of laughs
J = number of jokes
K = amount of knowledge about the joke material
F = familiarity with the jokes
Analysing how the dependent variable depends on each of the independent variables.
- Number of jokes
The number of laughs will increase with the number of jokes and vice versa. It can be stated that there is a direct variation between the number of laughs and number of jokes.
- Amount of knowledge about the joke material
The more one understands the joke material, the funnier the joke. In fact, the joke can be termed funnier when one understands the joke material deeply. The direct variation of number of laughs to knowledge about joke material isn't just enough, the number of laughs varying directly as the square of the knowledge of joke material seems more fitting.
- Familiarity with the joke
The more familiar one is with a joke, the less funny it is. Hence, it's an inverse relationship between number of laughs and the familiarity with the joke.
L = (JK²)/F
So, as the formula appears, the appropriate units will be
(jokes*knowledge²) / familiarity
Just like the formula suggests.
Hope this Helps!!!
The question is incomplete. Here is the complete question.
The number of laughs (denoted by L) can be defined as a function of the number of jokes (denoted by J), the amount of knowledge about the joke material (denoted by K) and the familiarity with the jokes (denoted by F) using this formula: [tex]L = \frac{J.K^{2} }{F}[/tex].
Select an appropriate unit for number of laughs:
(jokes*knowledge²) / familiarity
familiarity / (jokes*knowledge²)
familiarity² / (jokes*knowledge)
(jokes*knowledge) / familiarity²
Answer: Unit for number of laughs is (jokes*knowledge²) / familiarity
Step-by-step explanation: Number of laughs (L) is related to jokes (J), knowledge (K) and familiarity (F) according to the proportion: [tex]L = \frac{J.K^{2} }{F}[/tex]
The unit for L will be: L = (jokes.knowledge²).familiarity⁻¹
or
L = [tex]\frac{jokes*knowledge^{2} }{familiarity}[/tex]
What is 7+(-7)=? Help me plis
Hey!!
Here's your answer
7+(-7)
=7-7
=0
so the answer is 0
hope it helps...
Answer:
7+(-7) would be 0 because with one negative and one positive, they cross each other out.
Step-by-step explanation:
hope this helps. :))
PLEASE HELP 10 POINTS WILL GIVE BRAINLIEST: Which geometric solid is the best model for the head of a human being?
A. Cylinder
B. Cone
C. Pyramid
D. Sphere
Answer:
sphere
Step-by-step explanation:
Human heads are close to circles and sometimes are circles
Sphere is the best model for the head of a human being.
A human head definitely doesn't represent a Cone neither a Pyramid.
Now a cylinder is a solid which is circular at its edges and straight in its length which clearly does not model the human head. Now the Sphere, it does closely represent the outside figure of a human head.
Thus Sphere is the best model for a human head.
Therefore option D, sphere is the correct answer.
Learn more about Sphere, refer:
https://brainly.com/question/26506182#SPJ2
I need help with these questions! I need to finish them quick. Please and thank you!
Answer:
33ft^2
Step-by-step explanation:
There are 855 pieces of candy in the piñata. There are 19 children at the party, and they all agreed to split the candy equally. How many pieces of candy will each child receive?
Answer: 45
Step-by-step explanation: 85/19=45
What is the value of x and the length of segment DE?
1. 5/9= 9/(2x+3)
2. 10x + 15 = 9(9)
x=?
length of de=?
Answer:
[tex]x = 6.6[/tex] and [tex]DE = 16.2[/tex]
Step-by-step explanation:
The question is incomplete as the attachment to solve segment DE is missing. However, see attached for complete question.
Given
[tex]\frac{5}{9}= \frac{9}{(2x+3)}[/tex]
Required
Find x
Length of DE
To find x, we need to first simplify the given equation
[tex]\frac{5}{9}= \frac{9}{(2x+3)}[/tex]
Multiply both sides by [tex]9(2x+3)[/tex]
[tex]\frac{5}{9} * 9(2x + 3) = \frac{9}{(2x+3)} * 9(2x + 3)[/tex]
[tex]5(2x + 3) = 9(9)[/tex]
[tex]10x + 15 = 81[/tex]
Subtract 15 from both sides
[tex]10x + 15 - 15 = 81 - 15[/tex]
[tex]10x = 66[/tex]
Divide both sides by 10
[tex]\frac{10x}{10} = \frac{66}{10}[/tex]
[tex]x = \frac{66}{10}[/tex]
[tex]x = 6.6[/tex]
From the attached;
[tex]DE = 2x + 3[/tex]
Substitute 6.6 for x
[tex]DE = 2(6.6) + 3[/tex]
[tex]DE = 13.2 + 3[/tex]
[tex]DE = 16.2[/tex]
Hence [tex]x = 6.6[/tex] and [tex]DE = 16.2[/tex]
Answer: 6.6 for the first x
Length of DE is 16.2
Also these are correct!
Step-by-step explanation:
I just put it in
2. The cone has a radius of 30 mm and slant height of 34 mm. What is the height h for this cone?
Answer:
h = 16
Step-by-step explanation:
By applying the Pythagorean Theorem, the slant height is given by the formula:
[tex]\sqrt{r^2+h^2}[/tex]
34 = [tex]\sqrt{30^2 + h^2}[/tex]
[tex]34^2 = 30^2 + h^2[/tex]
[tex]1156 = 900 + h^2[/tex]
[tex]256 = h^2[/tex]
[tex]h = \sqrt{256}[/tex]
[tex]h = 16[/tex]
Put the following equation in slope-intercept form: -3y=12+3x
Answer: y= -x - 4
Step-by-step explanation:
The diameter of a sphere is 6 ft 6 in. Find the radius.
Answer:
3 ft 3 in
Step-by-step explanation:
The radius is half the diameter.
If the diameter is 6 ft 6 in, then the radius is 3 ft 3 in.
3+8+7+6+5+88+456-8734_65+9999
Answer:
is this the right question
Answer:
1773
Step-by-step explanation:
because if you put the _ as - it mean to subtract so then you see how I got it
What is the mean of the data set?
17, 24, 26, 13
04
O 13
20
O 80
Answer:
so here is the answer. Hope it helps.
The diameter of a circle measures 24 mm. What is the circumference of the circle? use 3.14 for π, and do not round your answer.
Answer & Step-by-step explanation:
[tex]Circumference=d\pi[/tex]
The diameter of the circle is 24 mm. So, let's add in the diameter and find the circumference of the circle.
[tex]Circumference=(24)\pi[/tex]
We will use 3.14 for pi.
[tex]Circumference=75.36[/tex]
So, the circumference of the circle is 75.36 mm.
What is the y-intercept of the line with equation y = 3x + 2
Answer:
The y-intercept is 2.
Step-by-step explanation:
We can find the y-intercept by looking at the linear equation y = mx + b.
m = slope
b = y-intercept
====================================================
Let's find the y-intercept of this line.
You should notice that the equation is written in Slope-Intercept Form:
[tex]\bigstar{\boxed{\pmb{y=mx+b}}}[/tex]
Where
m -> slope
b -> y-intercept
In the equation y=mx+b, the y-intercept is b, and in the equation y=3x+2, 2 is the y-intercept.
=========================================================
note:-Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)
PLease HELP!!!
THANK YOU :)
Which of the following inequalities contains (0, 0) in its shaded region?
3x + y < −5
x ≥ −y + 3
y − 7x > −4
3y > 2x
Answer:
y-7x>4
Step-by-step explanation:
Substitute the point (0, 0) for all of the equation and see which one will be true. The only reason why the 3rd equation is true is because (0) - 7(0) equals to 0 and 0 is greater than -4.
Answer:
C
Step-by-step explanation:
Edge 2021