Answer:
Step-by-step explanation:
First you gotta divide 3.50 ÷5 = 0.70. 0.70 cents is what one pound of apples cost
14) zeroes of the polynomial x^2+5x+6 are...
Both positive
Both negative
One is positive and other is negative
None
Answer:
both negative
Step-by-step explanation:
Descartes rule of signs tells us how many positive and negative real roots a polynomial has.
Given
f(x) = x² + 5x + 6 , with signs
+, +, + ← no change of signs, thus no positive zeros
f(- x) = (- x)² + 5(- x) + 6 = x² - 5x + 6 , with signs
+, -, + ← with 2 changes of signs. thus 2 negative zeros
Answer:
B) Both Negative
Step-by-step explanation:
[tex](x^2+5x+6)\\=(x^2+2x+3x+6)\\=x(x+2) + 3(x+2)\\=(x+3)(x+2)\\Hence,\ as\ their\ factors\ are\ (x+3)\ and\ (x+2)\ their\ zeroes\ are\ (-3)\ and\ (-2)\ respectively..\\As\ they\ both\ are\ negative..\ the\ answer\ is\ b)\\\[/tex]
At a concert 1,600 in tickets were sold. Adult tickets were $9 each and children’s tickets were $4 each. If the number of adult tickets was 30 less than twice the number of childrens tickets, how many of each kind were sold
Answer:
140 TICKETS
Step-by-step explanation:
Read each question and answer accordingly
Write a linear equation in slope-intercept form with the following information*
Passes through (-2,-11) and is perpendicular to y=--x+2.
4
Answer:
653
Step-by-step explanation:
Use long division to divide and use the results to factor the dividend completely (X3 - 4X2 -17X + 6) divided by (X-3) The X3 and X2 are supposed to be exponents
Answer:
x^2 -1x-20 +((-54)/(x-3))
Step-by-step explanation:
Let's do long division. I've uploaded the file for the work.
What is the slope and y-intercept of the graph? (write your answer in simplest form)
Slope:
y-intercept:
English
Answer:
Slope: 1/2.5
Y-intercept: -1
Step-by-step explanation:
write the equation of a line that is perpendicular to the line y=-3/7-15 and that passes through the point (9,2)
Answer:
Step-by-step explanation:
First substitue the coordinates to the equation so
x=9, y=2
you would get
2=-3/7(9) + b
we put b because we are trying to find the new slope
multiply the two numbers above
2=-3/6/7 + b
subtract the whole number from both sides
b= 5/6/7
in equation would be
y= -3/7 + 5/6/7
Let me know if there is an error.
(6 , -10 ) , ( -15, 15)
Answer:
1st. 3 2nd.2
Step-by-step explanation:
Hope this helped and was correct
Santiago is looking over his credit card statements from the past couple of months. The
balance was $95 last month, and 40% more this month. What is the balance on the card this
month?
Answer:
133
Step-by-step explanation:
40 percent more than is 133
find the slope and y- int 6x + - 2y=18
Answer:
Slope: [tex]\frac{3}{1}[/tex]
Y-int: 9
Step-by-step explanation:
[tex]6x + -2y = 18[/tex]
-6x -6x
-2y = -6x + 18
----- ------------
-2 -2
y = 3x + 9
You bought 15 apples and 2 bags of Carmel for $16.00. The bags of caramel costs $5.35. How much does each apple cost? Write an equation.
Answer:
5.35*2+x=16 and the answer is $.35
Step-by-step explanation:
5.35*2+x=16
10.70+x=16
-10.70 -10.70
x=5.30
5.30/15= about .35
Answer
$12.65/15
Step-by-step explanation:
$16.00-$5.35=$12.65
This means that $12.65/15 is the cost of each apple.
Find the product of -9 and -3.
27
-27
3
-3
I NEED THIS ASAP!!!
Answer:
negative number times negative number gives you positive number.
Step-by-step explanation:
-9x-3
=27
Explain how adding -3/10 + 4/10 is like adding -3 + 4
Answer:
is the same because when you add the fraction -3/10 + 4/10 you gonna have to add -3 +4 because since their denominator is the same (10) we don´t have to solve anything.
Step-by-step explanation:
don´t forget to brainllest!:)
la siguinete tabla mustran la correspondencia entre dos variables. Determina si es funcion o relacion
Answer:
where's the table. on és la taula?
Step-by-step explanation:
Find the slope (3,-5) and (0,0)
Answer:
- [tex]\frac{5}{3}[/tex]
Step-by-step explanation:
Find slope by using slope intersept form ( [tex]\frac{y2-y1}{x2-x1}[/tex])
Plug the x and y values from the given pairs into slope interspt form: [tex]\frac{-5-0}{3-0}[/tex]
Find the diffrence: [tex]\frac{-5}{3}[/tex]
Solution : - [tex]\frac{5}{3}[/tex]
Write the equation from the graph in slope intercept form
Answer:
y=2/3x−4
Step-by-step explanation:
Answer: [tex]y=\frac{2}{3}-4[/tex]
Step-by-step explanation:
Slope[tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\\=\frac{-4-0}{0-6}\\=\frac{-4}{-6}\\=\frac{4}{6}\\=\frac{2}{3}[/tex]
Since the line hits the y-intercept at -4 the answer is
[tex]y=\frac{2}{3}-4[/tex]
7 times a number plus 3 times the same number is -50. What is the number?
Answer:
n= -5
Step-by-step explanation:
7n+3n= -50
solve 10n=-50 n= -5
In the complex plane, the rectangular coordinates (x, y) represent a complex number. Which statement explains why polar coordinates (r, θ) represent the same complex number?
Answer: second option (counting from the top)
Step-by-step explanation:
When we have a number:
z = x + y*i
we can represent this with the point:
(x, y).
Now, remember that in polar coordinates, we need to use the variables:
r = distance to the (0, 0), or the "magnitude" of the point.
θ = angle measured counterclockwise from the x-axis.
r is easy to find, is the magnitude, this is calculated as:
r = √(x^2 + y^2)
To find θ, suppose that we have a triangle rectangle, where x is the adjacent cathetus, and y is the opposite cathetus, and θ is the angle as we described it.
We know that:
Tan(θ) = opposite cathetus/adjacent cathetus = y/x
Tan(θ) = y/x
Then:
θ = Tan^-1 (y/x)
Then the correct option is the second option (counting from the top)
Answer:
its b
Step-by-step explanation:
trust
Estimate the area of the figure. Each square represents 2 units^2.
Answer:
60 units²Step-by-step explanation:
Approximate area is about 50 units²
The closest option is the last one
how do I solve 9x-4= -44
There are 4 boys and 2 girls from the seventh grade and 3 boys and 5 girls from the eighth grade in the math club. The math club sponsor will randomly pick one student from each grade level to represent the team.
What is the probability that both will be girls?
Answer:
5/24 or 20.8%
Step-by-step explanation:
Probability that the 7th grader is a boy = number of boys/(total kids) = 4/(4+4) = 1/2
Probability that the 8th grader is a boy = 5/(5+7) = 5/12
Probability that both are boys = 1/2*(5/12) = 5/24 or 20.8%
All of the following are equivalent EXCEPT x < 2 x - 2 < 4 2x < -4 x - 2 < -4
Answer:
solution
x<2,2x<-4,x-2<-4 are equvalent
but x-2<4 is not
All the following are equivalent to 2(2a + b ) +8, except ______.
4a + 2b + 8
2(2a+b+4)
4(a+b+2)
4a+2(b+4)
Answer:
Except 4(a+b+2)
Step-by-step explanation:
It's 4a+4b+8 when expand
what is a domain in math?
Answer:
"In mathematics, the domain or set of departure of a function is the set into which all of the input of the function is constrained to fall."
Step-by-step explanation:
Which graph is the solution of the following systems
HELP ON ON GRADPOINT
What does 100% increase mean
An increase of 100% in a quantity means that the final amount is 200% of the initial amount (100% of initial + 100% of increase = 200% of initial). In other words, the quantity has doubled. An increase of 800% means the final amount is 9 times the original (100% + 800% = 900% = 9 times as large).
Julie suggests that they package together with the fries and soda in a combo for a $0.75 discount.
If the student council spent $0.85 per french fry and $1.20 per soda, then how much money will they make if they sell 45 combos?
Answer:
PLZ MARK BRAINLIEST!
The answer is $92.25
Step-by-step explanation:
0.85+1.20=$2.05
2.05 times 45= $92.25
Answer:
Hey, want to do a zoom today? I can do one in about an hour
Step-by-step explanation:
4. Use the following expression to answer the questions: t ^ 2 - 3t + 4 . How many terms are in this expression? What variable is used in this expression? What is the constant term in this expression?
Answer:
3 terms
t is the variable
4 is the constant
find the slope given the points (2,-7) and (-1,6)
A. 2/3
B. -13/3
C. 0
D. 13/3
−2x=x^2−6
1) Rewrite the equation by completing the square.
equation should look like (x+c)^2=d or (x-c)^2=6
Step-by-step explanation:
Example 1
Solve the equation x3 − 3x2 – 2x + 4 = 0
We put the numbers that are factors of 4 into the equation to see if any of them are correct.
f(1) = 13 − 3×12 – 2×1 + 4 = 0 1 is a solution
f(−1) = (−1)3 − 3×(−1)2 – 2×(−1) + 4 = 2
f(2) = 23 − 3×22 – 2×2 + 4 = −4
f(−2) = (−2)3 − 3×(−2)2 – 2×(−2) + 4 = −12
f(4) = 43 − 3×42 – 2×4 + 4 = 12
f(−4) = (−4)3 − 3×(−4)2 – 2×(−4) + 4 = −100
The only integer solution is x = 1. When we have found one solution we don’t really need to test any other numbers because we can now solve the equation by dividing by (x − 1) and trying to solve the quadratic we get from the division.
Now we can factorise our expression as follows:
x3 − 3x2 – 2x + 4 = (x − 1)(x2 − 2x − 4) = 0
It now remains for us to solve the quadratic equation.
x2 − 2x − 4 = 0
We use the formula for quadratics with a = 1, b = −2 and c = −4.
We have now found all three solutions of the equation x3 − 3x2 – 2x + 4 = 0. They are: eftirfarandi:
x = 1
x = 1 + Ö5
x = 1 − Ö5
Example 2
We can easily use the same method to solve a fourth degree equation or equations of a still higher degree. Solve the equation f(x) = x4 − x3 − 5x2 + 3x + 2 = 0.
First we find the integer factors of the constant term, 2. The integer factors of 2 are ±1 and ±2.
f(1) = 14 − 13 − 5×12 + 3×1 + 2 = 0 1 is a solution
f(−1) = (−1)4 − (−1)3 − 5×(−1)2 + 3×(−1) + 2 = −4
f(2) = 24 − 23 − 5×22 + 3×2 + 2 = −4
f(−2) = (−2)4 − (−2)3 − 5×(−2)2 + 3×(−2) + 2 = 0 we have found a second solution.
The two solutions we have found 1 and −2 mean that we can divide by x − 1 and x + 2 and there will be no remainder. We’ll do this in two steps.
First divide by x + 2
Now divide the resulting cubic factor by x − 1.
We have now factorised
f(x) = x4 − x3 − 5x2 + 3x + 2 into
f(x) = (x + 2)(x − 1)(x2 − 2x − 1) and it only remains to solve the quadratic equation
x2 − 2x − 1 = 0. We use the formula with a = 1, b = −2 and c = −1.
Now we have found a total of four solutions. They are:
x = 1
x = −2
x = 1 +
x = 1 −
Sometimes we can solve a third degree equation by bracketing the terms two by two and finding a factor that they have in common.
Step-by-step explanation:
mark up as brainliest
Commutative law under addition says- p + q = q + p. Commutative law under multiplication says p x q = q x p. Note- Rational numbers, integers and whole numbers are commutative under addition and multiplication. Rational numbers, integers and whole numbers are non commutative under subtraction and division.0
Peter's teacher says he may have his report card percentage based on either the mean or the median and he can
drop one test score if he chooses.
84%, 71%, 64%, 90%, 75%, 44%, 98%
Which measure of center should Peter choose so he can have the highest percentage possible?
O Peter should choose the mean after dropping one test score.
Peter should choose the mean without dropping one test score.
O Peter should choose the median after dropping one test score.
O Peter should choose the median without dropping one test score.
t would be best if Peter's report card percentage was based on the mean and if he could drop a percent, he should drop the 44%.
Step-by-step explanation:
The median (without dropping a score) of this set would be 75%
( 44%, 64%, 71%, 75%, 84%, 90%, 98% )
The mean (without dropping a score) of this set would be 75.1428571%
526 ÷ 7 = 75.14 ( 75.1428571 )
Answer:
A. Peter should choose the mean after dropping one test score.
Step-by-step explanation:
