Answer:0.5 or C
Step-by-step explanation:
Which of the following functions has the roots of -1 and 2? * a. f(x) = x² – x – 2 b. f(x) = x² + x – 4 c. f(x) = x² + x + 2 d. f(x) = x² – x + 5
Answer:
a
Step-by-step explanation:
yeah-ya............ right?
7) Staples charges $28 for 8 boxes of pencils and $47 for 4 pencil sharpeners. Ms. Felix orders 70 boxes of pencils and 21 pencil sharpeners from Staples. How much does Ms. Felix spend on her order?
Answer:
Ms. Felix would spend $491.75 on her order.
Step-by-step explanation:
First, let's identify the components of this word problem that we'll need to solve it. We know that Staples charges $28 for 8 boxes of pencils, and $47 for 4 pencil sharpeners. Before we do anything else, we'll find the unit price of the pencils and pencil sharpeners to make it easier for us. Let's begin with the boxes of pencils. 28 ÷ 8 = $3.50 per box of pencils. As for the pencil sharpeners, 47 ÷ 4 = $11.75 per sharpener. Now that we know the basic costs, let's use them to solve our problem at hand. We'll multiply the number of items ordered by the base cost of the item.
Boxes Of Pencils:
70 × $3.50= $245.00
Sharpeners:
21 × $11.75= $246.75
Now that we know the cost of the two seperate items Ms. Felix ordered, let's add them to get our final answer.
$245 + $246.75 = $491.75Our final answer would be $491.75.
ow do you find the radius of a circle using the circumference?
Answer:
Step-by-step explanation:
Circumference / 2 times the radius (diameter) = pi
Circumference / pi = diameter (diameter / 2 = radius)
5.) A case of 24 tennis balls weighs 3 pounds. How much would a shipment of 2560 tennis
balls weigh?
Answer:
1920 pounds
Step-by-step explanation:
2560 divided by 24 = 640
640 x 3 = 1920
Someone help pls!! Find the value of x
Answer:
Step-by-step explanation:
Generally, the algebraic expression should be any one of the forms such as addition, subtraction, multiplication and division. To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.
Impulse Calculator: Equivalent Fractions Calc...
Area Under the Curve Calculator: Multiplying ...
Volume of A Cylinder Calculator: F Distribution ...
Density Calculator: Probability Density Function ...
Find the unit rate.
2 specialty pizzas for $38.50 = $_______________ p
Answer:
Step-by-step explanation:
to find this all you need to do is divide the total price by the number of units you have. in this case 38.50 / 2 = 19.25 per pizza
Hello there! :)
If 2 pizzas cost 38.50 dollars, then we have to dibvide by 2 to find out the price of one pizza.
$19.25
Therefore, our final answer is: 19.25Hope this helps!
~Just a felicitous girlie
#HaveAnAwesomeDay
[tex]SilentNature :)[/tex]
Jeanne babysits for $6 per hour. She also works as a reading tutor for $10 per hour. She is only allowed to work 20 hours per week. This week, her goal is to make at least $75.
Use a system of inequalities to model the scenario above. Let x represent babysitting hours and y represent tutoring hours.
Use the model created in part A to create a graph representing Jeanne’s probable income earned and possible number of hours worked this week.
Analyze the set of coordinate values that represent solutions for the model created in part A. Choose one of the coordinates within the solution and algebraically prove that the coordinate represents a true solution for the model.
Part a) Use a system of inequalities to model the scenario
Let
x-------> represent babysitting hours
y-------> represent tutoring hours
we know that
--------> inequality
--------> inequality
Part b) Use the model created in part A to create a graph representing Jeanne’s probable income earned and possible number of hours worked this week
we know that
--------> inequality
This inequality represent Jeanne’s possible number of hours worked this week
Using a graph tool
the solution of this inequality is the shaded area
see the attached figure N
--------> inequality
This inequality represent Jeanne’s probable income earned this week
Using a graph tool
the solution of this inequality is the shaded area
see the attached figure N
Part c) Analyze the set of coordinate values that represent solutions for the model created in part A. Choose one of the coordinates within the solution and algebraically prove that the coordinate represents a true solution for the model
we have the system of inequalities
--------> inequality
--------> inequality
the solution of the system of inequalities is the shaded area
using a graph tool
see the attached figure N
Let
------> see the attached figure N
The point belongs to the shaded area, so it is a system solution.
If the point is a solution, it must satisfy both inequalities.
Prove algebraically
substitute the value of x and y in the inequalities
inequality
------> is ok
inequality
-------> is ok
the point A satisfy both inequalities
therefore
the point A is a solution of the system
Answer:
the answer is B, Use the model created in part A to create a graph representing Jeanne’s probable income earned and possible number of hours worked this week.
Step-by-step explanation:
8(&- 6) +58 = 2(4x + 5)
Answer:
10=10 the statement is true (if the "&" was an x)
or
8 is the answer (if the "&" was an 8)
Step-by-step explanation:
You distrubute then add the like terms together (use phtomath it helps)
What is three eights written in 2 different ways
Answer:
0.375 And 3/8
Step-by-step explanation:
What is the value of p?
Please help me with these two questions
Answer:
1. -3 2. -2
Step-by-step explanation:
Solve the inequality below:
2(4x - 3) < 5x - 27
Answer:
x < (-7)Step-by-step explanation:
[tex]2(4x - 3) < 5x - 27 \\ 8x - 6 < 5x - 27 \\ 8x - 5x < 6 - 27 \\ 3x < - 21 \\ x < \frac{ - 21}{3} \\ x < ( - 7) \\ [/tex]
Answer: Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
x<−7
Interval Notation:
(−∞,−7)
Use Math-way.
Factor the trinomial, or state that the trinomial is prime,
y2 - 5y + 6
Answer:
Im doing this for the points lol
Sorry
Answer:
factorise it
Step-by-step explanation:
in the method ax2 + bx + c
so it can be done just in y
find a common factor
well there isn't one but we can see that we need to factorise it
+1 y2 times 6= 6
because there is only 1 y and you times it by 6
you'll see why when we factorise this
so x the squared number (1) x 6 =6
and the middle number is 5
find two numbers that
x multiply to make six
and add+ to make -5
those numbers are
-3
-2
because -2 + -3 = -5 and -2 x -3 = positive 6
so our answer of y2 + 5y + 6
is identical to = y2 -3y -2y +6
factorise in half
y2 -3y -2y +6
so now we can factorise!
in this bracket we have
a common factor of y in this bracket we have common
factor of 2
= y (y -3) + = -2(y-3)
BUT THERE IS STILL ONE MORE
THEN WE CAN SEE A COMMON FACTOR OF Y-3
put the (y-3) in front and the (-y-2) is left
put y from first bracket and -2 from second bracket into a seperate bracket
yay! factorised
BUT THERE IS STILL ONE MORE
ANSWER = (Y-2) (Y-3)
you can use the rainbow multiplying out of bracket method to prove it works.
PLZ GIVE BRAINLIEST
how it would be written out:
y2 + 5y + 6
y2 -3y -2y +6
y2 -3y -2y +6
y (y -3) -2(y-3)
(Y-2) (Y-3)
What equation represents the relationship between X and Y shown in the table below
Answer: B
Explanation: B has-235 which is in the above list of y
Answer:
C
Step-by-step explanation:
Hello Jasmine. So let's try out all of the functions starting from the first one.
For A, assuming value of x = 3. (176*3)-59 = 469, so it is incorrect.
For B, assuming value of x =3. (-59*3)-235= -412, so it is incorrect.
For C, assuming value of x=3. (-59*3)-176= -353 (which is the corresponding value of y in the table.)
Which means the correct answer is C, if you need further help please let me know.
two people describe a regular polygon. Brianna says that the polygon has side length 6.3cm and a perimeter 31.5cm. Desiderio says the polygon has side length n and perimeter 5n. which person's description tells you how many sides the polygon has without doing any calculations? why?
9514 1404 393
Answer:
Desiderio
Step-by-step explanation:
The number of sides of a regular polygon is multiplied by the length of the side to get the perimeter. To find the number of sides, the perimeter must be divided by the number of sides.
Brianna's description requires that division look like ...
31.5/6.3 = 5
Desiderio's description requires that division look like ...
5n/n = 5
Since we're supposed to tell the number of sides without doing any calculation, it seems Desiderio's description is better. (We have to realize that n/n = 1, so the factors of n cancel.)
Some of us are familiar with multiplication tables and quickly realize 30/6 = 5 based on memory. Which realization is faster depends on your memory and experience. Most would say evaluating Brianna's description cannot be done without calculation.
The ratio of students to teachers at a school is 15:1 if there are 49 teachers how many students are there
Answer:
735 students
Step-by-step explanation:
create a proportion of students to teachers
let 's' = # of students
[tex]\frac{15}{1}[/tex] = [tex]\frac{s}{49}[/tex]
cross-multiply to get:
s = 735
The distance a wheel moves forward varies directly with the number of rotations. Suppose
the wheel moves 56 ft in 8 rotations. What distance
does the wheel move in 20 rotations?
Answer:
46
Step-by-step explanation:
irdk
140 feet travel in 20 rotations.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas. 12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas. This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
Given:
The wheel moves 56 ft in 8 rotations.
Now, in 1 minute the wheel travel
= 56/8
= 7
Now, in 20 rotation the wheel travels
=20 x 7
= 140 feet
Hence, 140 feet travel in 20 rotations.
Learn more about unitary Method here:
https://brainly.com/question/22056199
#SPJ2
Which equation can be used to describe the relationship between x and y shown in the table below?
Answer:
y=-1x
Step-by-step explanation:
You would find the constant of proportionality which is -1 and then you would put that into that spot and get y=-1x
help asap please and thank you!!
There is a population of 10 bacteria in a colony. If the number of bacteria doubles every 70
minutes, what will the population be 140 minutes from now?
Answer:
40
Step-by-step explanation:
HELP ME PLEASE I NEED HELP
Answer:
hope this helps ¯\_(ツ)_/¯
Step-by-step explanation:
y=3x+1
brainliest is appreciated
^‿^
The growth of a bacteria population is modeled by the equation p(h) = 1,000(0.4h)
How long does it take for the population to reach 1,000,000? Explain or show how you know.
Answer:
you have to multiply then divide the o.4h
Step-by-step explanation:
The amount of time that is taken for the population to reach 1,000,000 will be 17.27.
What is an exponent?The exponent denotes that the base will rise to a specific level of strength. The base is X, and the power is n.
The growth of a bacteria population is modeled by the equation given below.
[tex]\rm p(h) = 1,000 \times e^{(0.4h)}[/tex]
Then we have
Then the amount of time which is taken for the population to reach 1,000,000 will be
[tex]\rm 1,000,000 = 1,000 \times e^{(0.4h)}\\\\1000 = e^{0.4h}[/tex]
Taking log on both sides, then we have
ln 1000 = 0.4 x h x ln e
6.91 = 0.4 x h
h = 17.27
More about the exponent link is given below.
https://brainly.com/question/5497425
#SPJ2
A line passes through the point (-2, 6) and has a slope of -9. Write the equation of
the line in point-slope form.
What is the missing reason in the proof?
Given: ∠ABC is a right angle, ∠DBC is a straight angle
Prove: ∠ABC ≅ ∠ABD
A horizontal line has points D, B, C. A line extends vertically from point B to point A. Angle A B C is a right angle.
definition of angle bisector
segment addition property
definition of congruent angles
transitive property
Answer:
ABC and ABD are congruent
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Help me pls because my teacher says I must finish it
Answer:
for the first equation you will place a point at (0, 3)
you will then go "up 1 and over 1" and place another point (this is your slope) continue doing this until you have formed a line. you may also go "left 1 down 1" to go the opposite direction, creating a negative slope & straight line.
for the second equation you will place a point at (0, -3)
you will then go "up 1 and over 2" and place another point. repeat this a few times. then you will go to (0, -3) and go "left 1 down 2" and create the negative slope effect. this will give you a straight line.
Which image shows the translated figure of quadrilateral ABCD?
Answer:
where's the picture?
Step-by-step explanation:
(ASAP) Toby hiked to a famous point with a beautiful view. It took 1 hour and 45 minutes to hike to the viewpoint and 1 hour and 7 minutes to hike back. Toby spent 1 hour and 37 minutes enjoying the view. If Toby started the hike at 9:27 A.M., what time did he get back?
Answer:
he returned at 1:56 pm pls give brainliest
how do i turn 2 18/60 into a decimal? Also maybe try explaining it u dont have to put im having a kinda hard time turning fractions into decimals
Answer:
Step-by-step explanation:
just go to demos scientific calculator, you shall see a button of decimal and theres your answer
Select all ratios equivalent to 12:6.
1: 16.8
2: 10:5
3: 48:24
Answer:
1, 2, and 3 are all equivalent to 12:6.
Step-by-step explanation:
12:6 = 2:1
16:8 = 2:1
10:5 = 2:1
48:24 = 2:1
They are all equivalent.
if you drive 80kph for 3 hours and 45 minutes how far do u drive
Answer:
300 pretty sure
Step-by-step explanation:
