Write the following equation in vertex form by completing the square.
f(x) = -x2 – 8x +5
Answers
Answer:
the vertex form is -1(x+4)-11
Step-by-step explanation:
i attached my work
Related Questions
in a group 20 children 60 % have blue eyes and 35 % have brown eyes how many children have brown eyes . SHOW UR WORKING OUT PLZ THANK U ❤❤❤
Answers
Answer:
7 children have brown eyes
Step-by-step explanation:
20*.35=7
Answer:
7 children have brown eyes
Step-by-step explanation:
can i get brainliest please?
If a regular polygon has an exterior angle of 7.2 degrees, then determine the sum of all the interior angles.
!plz help!
Answers
Answer:
8640
Step-by-step explanation:
All exterior angles must = 360 degrees.
360/7.2= 50
There are 50 exterior angles, so it's logically concluded that there are 50 sides.
Interior angle= 180-7.2= 172.8
172.8 x 50= 8640.
Credit: laserdog248
How many 3/4 teaspoons of salt are in 1/3 of a teaspoon of salt?
Answers
Answer:
4/9
Step-by-step explanation:
Multiply each answer choice by 3/4 or 1/3 and they will all be wrong except for 4/9.
3 x 4 = 1/3
so 4/9
another way to write 2 5/2×4
Answers
Answer:
4 1/2(4)
Step-by-step explanation:
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A rectangle is enlarged by a factor of 6.
A rectangle with an area of 20 inches squared.
What is the area of the enlarged rectangle?
120 in.²
720 in.²
2,400 in.²
14,400 in.²
Answers
Answer:
[tex]120in.^{2}[/tex]
To find the enlarged value, you have to multiply.
So, let's multiply 20 by 6, since it was enlarged by 6.
20 x 6 = 120.
So, the answer to the question is 120in.
Hope this helps you!
Answer:
Multiply 20 by 6 and then find the square of your answer
20×6=120
120^2= 14400
208=k(k+3) find the value of k
Answers
Consider the table representing an exponential function.
The equation for this function is
f(x) =
x
f(x)
-2
32
-1
16
0
8
1
4
2
2
3
1
Answers
Answer:
8, 0.5
Step-by-step explanation:
i hope this helps :)
Please help.
What is the solution to this system of equations?
3x + y = 17
x + 2y = 49
A.
It has no solution.
B.
It has infinite solutions.
C.
It has a single solution: x = 15, y = 17.
D.
It has a single solution: x = -3, y = 26.
Answers
Answer:
B. It has infinite solutions.
I believe so
100% A coin is tossed 100 times. Which is the best estimate for the number of times the coin will land heads up?
A 10
B. 20
c. 50
D. 80
E. 100
Answers
Answer:
C.50
Step-by-step explanation:
It would be 50 because there are 2 sides to the coin. So if you take 100/2 you get 50. that would be the best estimate answer in my opinion
Number of times the coin will land heads will be 50
What is Binomial Distribution?
Number of trials or observation when each trial has the same probability of attaining one particular value. It determines the probability of observing a specified number of successful outcome in a specific number of trial.
Here , number of times the coin had tosses: 100
P(probability of getting a head in a coin ) : number of time head can come when flipped once / total number of observations
since , head can come once and there are two possibility either head or tail
hence P= 1/2
this implies number of times heads land up = n*P = 100 *(1/2) = 50
option c) 50
Let us learn more about binomial distribution:
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Amber is walking a marathon. She has a sponsor who will pay a $10 donation plus $2 for each mile traveled. Write an equation that will represent how much she will earn per mile.
Answers
Answer:
:)!!
Step-by-step explanation:
Amber's variables, m= miles walked
Equation, 2m+10
Answer:
First we have the 10d donation. Than after one mile is 10d+2d=12d After mile 2 it is 12d+2d=14d And it keeps going on and on like that.
Step-by-step explanation:
Choose the best units (liters - l) or (milliliters - ml) to measure each of the following liquids.
The amount of liquid that would fill a test tube
The amount of mouthwash that would fill a travel-sized container
The amount of coffee that would fill a thermos
Answers
ml
L.
Your welcome.
POSSIBL
Mariko needs to solve the equation below for D. Which correctly describes the step he should take?
M=
= p
Subtract V from both sides.
Divide both sides by V.
Multiply both sides by V.
O Divide both sides by D.
1
2
which step should I take
Answers
Answer:
Divide both sides by V
Step-by-step explanation:
The equation is not well written.
Mariko needs to solve the equation below for D. Here is the equation:
M = DV
For Mariko to get D, he needs to make D the subject of the formula by dividing both sides of the equation by the coefficient of D i.e V as shown;
Divide both sides by V
M/V = DV/V
V at the denominator will cancel out the V at the numerator to have:
M/V = D
Rearrange
D = M/V
Therefore, the statement which correctly describes the step he should take is:
Divide both sides by V. Option B is correct.
The number that rode in columns was 3 2/3 times the number that rode in rows. If 2200 rode in columns, how many rode in rows?
Answers
Answer:
600
Step-by-step explanation:
Given parameters:
Number that rode in columns = [tex]3\frac{2}{3}[/tex] times the number that rode in rows.
2200 rode in columns
Unknown:
Number of people that rode in rows = ?
Solution:
Let the number of people that rode in columns = C
Let the number of people that rode in rows = R
C = [tex]\frac{11}{3}[/tex]R
Number of people that rode in rows = 2200;
2200 = [tex]\frac{11}{3}[/tex]R
11R = 2200 x 3
R = [tex]\frac{2200 x 3}{11}[/tex]
R = 200 x 3
R = 600
Number of people that rode in rows = 600
7176 rounded to 1 significant figure
Answers
Answer:
7000
Step-by-step explanation:
It part of a Law of Exponents
Answers
Which equation has a constant of proportionality equal to 999? Choose 1 answer: Choose 1 answer: (Choice A) A y=\dfrac{81}{3}xy= 3 81 xy, equals, start fraction, 81, divided by, 3, end fraction, x (Choice B) B y=9xy=9xy, equals, 9, x (Choice C, Checked) C y=3xy=3xy, equals, 3, x (Choice D) D y=\dfrac{1}{9}xy= 9 1 x
Answers
Answer:
Option (D) is correct
Step-by-step explanation:
If y is a multiple of x and versa, it will have a constant of proportionality.
Option (A)
y = (81/3)xy
y will cancel out
1=27x
It is not correct
Option (B)
y=9xy
y will cancel out
1=9x
Option (C)
y=3xy
y will cancel out
1=3x
Option (D)
y = (1/9) x
y will cancel out
x=9y
In option (D), we see that x is 9 times of x. It means it has constant of proportionality equal to 9.
The equation y = 9x represents the constant of proportionality which is equal to 9.
What is the general equation of a Straight line?The general equation of a straight line is -
[y] = [m]x + [c]
where -
[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].
[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis.
The equation can also be used to represent direct proportionality as -
y = mx
m = y/x
[m] is called constant of proportionality
We have the constant of proportionality equal to 9
The equation y = 9x represents the constant of proportionality which is equal to 9 as when compared with y = mx, we get m = 9.
Therefore, the equation y = 9x represents the constant of proportionality which is equal to 9.
To solve more questions on straight lines, visit the link below-
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Evaluate -12+ |4-9z| if Z=8
Answers
Answer:
-12+l4-72l
Step-by-step explanation: i hope this helps
Answer:
56
Step-by-step explanation:
Idk the rest to the table someone please help!
Answers
1. 6
2. 2
3. -2
4. -6
Explanation:
Just plug in the X #’s into the equation and multiply them by -4 and add 2 and you’ll get the correct answers!
Gina tracks the low temperatures for a city over six days. Identify the days colder than-1.75°F. Monday Tuesday Wednesday Thursday Friday -2.5°F -1.9°F 0°F -1.5°F 0.5°F
Answers
Answer:
Monday
Tuesday
Step-by-step explanation:
Given the temperature data:
Mon _____ Tue _____ Wed _____ Thur ___ Fri
-2.5°F ___ - 1.9°F _____ 0°F _____ - 1.5°F _0.5°F
Days colder than - 1.75°F
Days colder than - 1.75°F are days whereby the temperature value is less than - 1.75
Hence,
-2.5°F < - 1.75°F = (Monday)
-1.9°F < - 1.75°F = (Tuesday)
Hence, temperature on Monday and Tuesday is colder than - 1.75°F
Answer:
Monday
Tuesday
Step-by-step explanation:
Solve for w in the proportion.
Answers
Answer:
w=40
Step-by-step explanation:
7.) The width of a vegetable garden is times its length. If the length of the garden is 73
feet, what is the width in simplest form?
Answers
Answer:
So, the length (L) = 7 3/4 ft = 31/4 (as an improper fraction)
the width (W) = (1/3)xL
So the width = 1/3 x (31/4) =
31/12 = 2 7/12 feet
Step-by-step explanation:
its up there
30 points Solve for w 2/7w-6=-2
Answers
Answer:
w=6
w=1
Step-by-step explanation:
help please! simplify this problem
Answers
Answer:
14+16
Step-by-step explanation:
Plz help I will give Brainliest
−1/3(p+9)≤4
The / is not a division sign -1/3 is a fraction.
Answers
Answer:
p [tex]\geq[/tex] -21
Step-by-step explanation:
It is the inequality for p
What is the product of two odd numbers and a multiple of 2
Answers
An odd number is (2x) + 1
An even number is (2x)
These are the definitions.
Using the binomial (2x + 1)(2x + 1), we can see the properties of all products made from odd numbers.
Foiling will give 4x^2 + 4x + 1.
4x^2 is even because 4x^2 can be expressed as 2(2x) x 2(2x).
4x is even because 4x can be expressed as 2(2x)
This means that 4x^2 + 4x is even so the expression 4x^2 + 4x + 1 is odd because an even number + 1 is odd as shown by (2x) + 1.
This shows that every outcome of the product of 2 odd numbers will result being odd.
This means there is no answer to this problem, because any number that is a multiple of 2 is even. (Basically the definition of even)
Using even and odd numbers concepts, it is found that the product is an even number.
------------------------
An even number is a number that is divisible by 2.An odd number is a number that is not divisible by 2.------------------------
The product of two odd numbers will always generate an odd numbers, examples: [tex]3 \times 5 = 15, 3 \times 7 = 21, 3 \times 9 = 27[/tex]The product of an even number with an odd number will always be an even number, as examples: [tex]3 \times 4 = 12, 3 \times 6 = 18[/tex]------------------------
The product of the two odd numbers is an odd number.The product of the odd number(product of the two odd) with the multiple of 2, which is even, is an even number.A similar problem is given at https://brainly.com/question/7852959
Vincent counts 30 dimes and 87 pennies in a bowl. How many more pennies
than dimes are in the bowl?
Answers
Answer:
57
Step-by-step explanation:
87-30=57. That means that there are 57 more pennies than dimes in the bowl.
Answer:
subtract 30 from 87
Step-by-step explanation:
87-30
The Hu Family goes out for lunch, and the price of the meal is $53. The sales tax on the meal is 7%, and the family also leaves a 15% tip on the pre-tax amount. What is the total cost of the meal?
PLEASEEE HELPPP I WILLL MARK BRAINLIEST
Answers
please help :( 20 points
Answers
Answer:
a. for all the values of g to be found look at x intercepts on the graph. eg g(0)= 0, which is the value of x
b. g(x)= 0, look at the value of y at 0, it's going to be 0
c. look at the values of y=2 at the graph
this is what I think. best of luck
What is the equation of the line that passes through the point (-3, 5) with a slope of 4?
y=4-7
O y-4x+17
O y= 4x+12
O y=47-17
o y = 4x+2
Answers
Answer:
y=4x+17
Step-by-step explanation:
y-b=m(x-a)
y-5=4(x--3)
y-5=4(x+3)
y-5=4x+12
y=4x+17
A variable needs to be eliminated to solve the system of equations below. Choose the correct first step. 9x – 2y = – 75 2x – 2y = -12 Add to eliminate x. Add to eliminate y. Subtract to eliminate y. Subtract to eliminate x. Submit Answer
Answers
Answer:
pretty sure the answer is "add to eliminate y"
Step-by-step explanation:
since each side is a -2y you do the opposite which is adding :)
hope this helped! Good luck!
The value of x after eliminating the variable y is -9.
What is an elimination method?The elimination method involves taking one variable out of the system of linear equations by using addition or subtraction along with multiplication or division of the variable coefficients.
Given that the two equations are 9x – 2y = – 75 and 2x – 2y = -12. The equations will be solved as,
9x – 2y = – 75
2x – 2y = -12
The value of x will be calculated by elimination of the variable y,
9x – 2y = – 75
-2x + 2y =+12
_____________
7x + 0 = -63
x = -9
Therefore, the value of x after eliminating the variable y is -9.
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