Answers
9514 1404 393
Answer:
a) zeros: -2/3, 6
b) x < -2/3, signs: -, -; sign of product: +
-2/3 < x < 6, signs: +, -; sign of product: -
x > 6, signs: + +; sign of product: +
c) solution: x < -2/3 ∪ x > 6
Step-by-step explanation:
a) The zeros of the product are the values of x that make either factor zero. (A product is only zero if one of the factors is zero.)
3x +2 = 0 ⇒ x = -2/3
x -6 = 0 ⇒ x = 6
The zeros of the quadratic are x = -2/3 and x = 6.
__
b) For values of x left of the left-most zero, both factors are negative. For values of x between the zeros, the left factor is positive and the right factor is negative. For values of x greater than the right-most zero, both factors are positive. That is, for large negative values of x, all factors are negative. Working left-to-right, each time a zero is crossed, one factor changes sign.
__
c) The solution is where the signs of the factors match:
x < -2/3 or -6 < x
Related Questions
"take a number x, double it and then take that result away from 10"
Write as an expression
Answers
Word Problem:
Take a number, x, double it and then take that result away from 10.
Expression:
[tex]10-(2x)[/tex]
In △ABC, m∠A = 15, b = 19, and c = 12. Find a to the nearest tenth.
A) 64.5
B) 16.9
C) 30.7
D) 8.0
SHOW WORK PLS
Answers
The answer is B.
Step-by-step explanation:
Yes
What is the simplest form of (4x3 + 6x – 7) + (3x3 – 5x2 – 5x + 9)?
A. 7x3 – 5x2 – x + 2
B. 7x3 – 5x2 + x + 2
C. 7x3 + x2 – 5x + 2
D. 7x6 – 4x2 + 2
Answers
Answer:
The simplest form is A.
Step-by-step explanation:
Most likely, it would have the exponent, like x^2 (just an example).
Hope it helped!
Answer:
Look at picture
Step-by-step explanation:
Given that r is directly proportional to
y and inversely proportional to Z,
x= 15 when y = 10 and Z= 4, find
the equation connecting x, y and Z.
Answers
Given:
x is directly proportional to y and inversely proportional to z.
x= 15 when y = 10 and z= 4.
To find:
The equation that connecting x, y and z.
Solution:
It is given that, x is directly proportional to y and inversely proportional to z.
[tex]x\propto \dfrac{y}{z}[/tex]
[tex]x=\dfrac{ky}{z}[/tex] ...(i)
Where, k is the constant of proportionality.
We have, x= 15 when y = 10 and z= 4.
[tex]15=\dfrac{k(10)}{4}[/tex]
[tex]15\times 4=10k[/tex]
[tex]60=10k[/tex]
Divide both sides by 10.
[tex]\dfrac{60}{10}=k[/tex]
[tex]6=k[/tex]
Putting k=6 in (i), we get
[tex]x=\dfrac{6y}{z}[/tex]
Therefore, the required equation is [tex]x=\dfrac{6y}{z}[/tex].
The measure of
What is the measure of
A 115°
B 230°
C 65°
D 25°
Answers
Answer:
A) 115
Step-by-step explanation:
Straight lines = 180 degrees
180 - 65 = 115 degrees
R = 115 degrees
Hope this helped! Have a nice day, and plz mark as brainliest if correct!!!
-Lil G
Answer:
230° because i am very expert in math and this is very easy question for me so the answer is 230°
i have ask my teacher too and he told the right answer is 230°.
PlZ HELP ASAP WILL MARK YOU BRAINLYEST!! PLz dont answer if you don't know... THX
Answers
Answer:
5. 8.49
6. 8.6
7. B. Joe is taller than the tepee
Step-by-step explanation:
5 - formula for diagonal [tex]d= \sqrt{2} *s[/tex] s= side length
So 1.4 times 6 = 8.49
6 - Pythagorean Theorem [tex]c= \sqrt{ a2+b2}[/tex]
So [tex]c= \sqrt{ 5 *2+7*2 }[/tex] c = 8.6
7 - Formula for height [tex]h= \sqrt{ l^{2} - r^{2}[/tex] l=slant height
So [tex]\sqrt{ 7^{2} - 4^{2}} =h\\\sqrt{ 49-16} = h\\h = 5.74\\5.74 < 6[/tex]That means Joe is taller
Answer:
The answers to your questions are :
5. Area of square = 36 , so (4 × X =36) . X=9
The formula used to find diagonal length = side × Rad2
9 × rad2 = 12.72
6 . Rad ( 25+49) = Rad(74) = 8.6
7. B is correct . He is taller than it .
Rad ( Slant height^2 - radius^2 ) = hight
hight = 5.7 .
Can someone help me? I’ll reward points + brainalist
Answers
the population of staten island is 7.6*10^3. the population of Brooklyn is 2.3*10^5. how many people are there in Brooklyn and Staten Island?
Answers
Answer:
1
Step-by-step explanation:
1
the first two terms of an arithmetic sequences are 7 and 3.
1.1.1 determine the eighteen term.
1.1.2 which term of the sequences Will be equal to -157?
Answers
Answer:
1.1.1) -61
1.1.2) Term 42
Step-by-step explanation:
Tn= dn (difference) + t0 (term 0)
Tn= -4n+ 11
You can now take this general rule to find out the other terms.
Tn= -4(18)+11
Tn= -61
And the term -157
Tn= -4n+11
-157= -4n + 11
-157 - 11= - 4n
-168= -4n
-168/-4= n
42= n
Find the measure of exterior 1.
Answers
Answer:
90 degrees
Step-by-step explanation:
A.P.E.X
In the figure below, solve for the value of a. a = ______ in. (round to the nearest tenth and do NOT include units in your answer)
Answers
Answer:
6.9
Step-by-step explanation:
sinX=opposite/hypotenuse
sin35=a/12
a=12*0.57357643635
a=6.88291723621≈6.9
Create an equation for a line that is parallel to the line �� = −32�� − 5.
Answers
Answer:
can u type it again
Step-by-step explanation:
99165+67894321-9872345
Answers
Answer:
58121141
Step-by-step explanation:
99165+67894321= 67993486
67993486-9872345= 58121141
ill mark brainlist plss help
Answers
Answer:
a
Step-by-step explanation:
Solve for the value of x.
Answers
Answer:
x=4/3
Step-by-step explanation:
9x+8=12x+4
Subtract 8 from both sides;
9x+8-8=12x+4-8
Simplify;
9x=12x-4
Subtract 12x from both sides;
9x-12x=12x-4-12x
Simplify;
-3x=-4
Divide both sides by -3
-3x/-3=-4/-3
Simplify;
x=4/3
A rectangle has an area of 170.2m2
One of the sides is 3.7m in length.
Work out the perimeter of the rectangle.
Answers
Answer:
here
Area = 170.2 M2
Area of rectangle = l *b
let l= 3.7m
170.2 = 3.7* b
b= 46m
now , perimeter = 2(l+b)
= 2( 3.7 + 46)
= 99.4 m
Factorise the following.
Answers
Answer:
This is your answer
A school principal of 890 students needs to determine what percentage of students passed and did not pass a statewide examination. Round to the nearest percent.
If 300 students passed the exam, what percent passed the test?
Answers
Answer:
34
Step-by-step explanation:
300\890
then x100
33.70786517
round to the nearest whole number
State the name of the figure (
Answers
9) C rhombus
10) D rectangle
11) B square
12) A square
Find the areas of these trapezoids
Answers
Answer:
Pink = 12 square units
Blue = 10.5 square units
Step-by-step explanation:
(2+4)/2=3
3x4=12
(2+5)/2=3.5
3.5x3=10.5
Answer:
Blue is 42 and pink is 48
Step-by-step explanation:
the squares are 2x2 which is 4 so each square is 4
Cheryl Wilcox is planning for her retirement, so she is setting up a payout annuity with her bank. She wishes to receive a payout of $1,500 per month for twenty years.
(a) How much money must she deposit if her money earns 8% interest compounded monthly? (Round your answer to the nearest cent.)
(b) Find the total amount that Cheryl will receive from her payout annuity.
Answers
Answer:
35h6j7jhtgr54y6htsrhr6wrttttwy
Step-by-step explanation:
These triangles are
congruent by the
triangle congruence
postulate [? ]
Answers
Answer:
Option A
Step-by-step explanation:
From the picture attached,
In the given triangles ABC and ADC,
m(∠B) = m(∠D) [Given]
AC ≅ CA [Reflexive property]
But in the absence of third property of congruence ΔABC and ΔADC can't be congruent.
Option A is the answer.
Help please is for now
Answers
The line is at 4 and is a straight line so it’s 4
A small college has 800 students, 10% of which are left-handed. Suppose they take an SRS of 8 students.
Let L = the number of left-handed students in the sample.
Which of the following would find P(L = 2)?
Answers
Answer:
Step-by-step explanation:
Probability of finding 2 left handed students out of 8 samples is 0.1488 or 14.88%.
What is Binomial Distribution?Binomial distribution is the distribution of a random variable X for which there are only two possibilities. The probability p for the success and the probability of 1-p for the failure, which consist of n trials.
Given,
Number of students in the college = 800
10% of which are left handed.
Probability of finding left handed student = 10% = 0.1
p = 0.1
q = 1 - 01 = 0.9
Number of samples, n = 8
We have to find P(x = 2)
The formula to calculate binomial distribution is,
P(x) = ⁿCₓ pˣ qⁿ⁻ˣ
P(x = 2) = ⁸C₂(0.1)²(0.9)⁶
= 28 × (0.1)²(0.9)⁶
= 0.14880348
≈ 0.1488
Hence the probability is 0.1488.
Learn more about Binomial Distribution here :
https://brainly.com/question/14565246
#SPJ7
In the cylinder, the radius of the circular base is 3.5 centimeters, and the height of the cylinder is 11 centimeters. The volume of the cylinder is
Answers
Answer:
33.69[tex]\pi[/tex] or 105.83
Step-by-step explanation:
Volume for a cylinder is
V= [tex]\pi r^{2}h[/tex]
we need to find the radius from the base
B = 2[tex]\pi[/tex]r
B= 3.5/2 = 1.75
V =[tex]\pi 1.75^{2}*11[/tex]
V = 33.69[tex]\pi[/tex] or 105.83 depending if you want it in pi for or not
Find the approximate area of the triangle.
30 square
15 square
21 square
45 square
Answers
Answer:
A
Step-by-step explanation:
Hard to explain xD
HELP!!———————————————
Answers
Answer:
C
Step-by-step explanation:
If I am understanding the question, it is just asking what the possible choices are, and how many of each.
. You need 1/12 yard of ribbon to make one bow. You have 5/6 yard of ribbon. How many bows are you able to make with the ribbon you have? *
Answers
Answer:
You can make 14 with some ribbon left over.
Step-by-step explanation:
In a cafeteria,
1/6of the students are eating salads , and 2/3
are eating sandwiches. There are 12 students in the cafeteria. How many students are eating lunches other than salads or sandwiches?
Answers
Answer:
2 students
Step-by-step explanation:
First, you find the number of students eating either salads and sandwiches. Then, you add the number of students eating salads and sandwiches together. Finally, you will subtract that number from the 12 total students
2/3 * 12/1 = 8 (sandwiches)1/6 * 12/1 = 2 (salads)8 + 2 = 10 (combined)12 - 10 = 2 studentsHELP
Which of the following is an open statement?
14 ÷ 2 = 7
2x + 5x = 7x
3 + 10 = 13
3x = 12
Answers
Answer:
i think 3+10=13 is the open statement
