Answers
Answer:
f(-9) = -64
Step-by-step explanation:
Substitute -9 for x:
f(-9) = - (-9)^2 - 4(-9) - 19
= -81 + 36 - 19
= -64
Related Questions
Evaluate the expression when m = 6 and n
8.
56
+m
n
Answers
Step-by-step explanation:
Hello! I have given you the answer key to your whole entire unit, so what you do is scroll to find the answer you need out of it. But if it isn't on the front like it should be, scroll you'll find it.
Answer:
yea the dude that answered ahead of me is correct trust him
Step-by-step explanation:
Sorry i cant do that kind of math
The hanger below represents a balanced equation find the Value of n that makes the equation true n=
Answers
Answer: where is the diagram ?
Step-by-step explanation:
Which phrases can be represented by the algebraic expression x + 14? Select three options.
the quotient of a number and 14
a number plus 14
fourteen less than a number
fourteen more than a number
a number increased by 14
Answers
Answer:
a number plus 14
fourteen more than a number
a number increased by 14
Step-by-step explanation:
The phrases which can be represented by the algebraic expression x + 14 are
Let x = the unknown number
a number plus 14
= x + 14
fourteen more than a number
= x + 14
a number increased by 14
x + 14
Answer:
number plus 14
fourteen more than a number
a number increased by 1 :D
Step-by-step explanation:
Plz answer I will give brainlest tag
Answers
Answer:
135/8
Or
16.875
Step-by-step explanation:
(3²-2²)(⅔)^-3
(9-4)(3/2)³
5(27/8)
135/8
16.875
find the inverse of f(x) =X+4/x
Answers
Answers and steps in the pic..
there are 2 options....choose what you want..
Keiko is getting balloons for her grandfather's birthday party. She wants each balloon string to be 12 feet long. At the party store, string is sold by the yard. If Keiko wants to get 46 balloons, how many yards of string will she need? 1 foot = 1 3 yard
Answers
Answer: 184 yards
Step-by-step explanation:
Since she wants each balloon string to be 12 feet long and she wants to get 46 balloons, the total length of strings would be:
= 46 × 12 feet
= 552 feet
Since 1 yard = 3 feet. 552 feet would be converted to yard which would be:
= 552/3
= 184 yards
In solving the equation 2x+5=9, which property of equality do we use first? Why?
Answers
A store has two different sizes of ice cream the smaller container cost 3.87 for 48 ounces the larger container cost 6.42 which ice cream cost less per ounce
Answers
Consider the complete question is "A store has two different sizes of ice cream on sale this week. The smaller container costs $3.87 for 48 ounces. The larger container costs $6.42 for 128 ounces. which ice cream costs less per ounce?"
Given:
The smaller container costs $3.87 for 48 ounces.
The larger container costs $6.42 for 128 ounces.
To find:
Which ice cream costs less per ounce?
Solution:
We know that
[tex]\text{Cost per ounce}=\dfrac{\text{Total cost}}{\text{Number of ounces}}[/tex]
Using this formula, we get
Per ounce cost of small container [tex]=\dfrac{3.87}{48}[/tex]
[tex]=0.080625[/tex]
[tex]\approx 0.08[/tex]
Per ounce cost of larger container [tex]=\dfrac{6.42}{128}[/tex]
[tex]=0.05015625[/tex]
[tex]\approx 0.05[/tex]
Since, 0.08 > 0.05 therefore, the per ounce cost of larger container is less.
What is the product of 3.06 and 4.1 rounded to the nearest hundredth?
Answers
Answer:
12.55
Step-by-step explanation:
The product of 3.06 and 4.1 rounded to the nearest hundredth is 12.55.
What is multiplication?Multiplication is an operation that represents the basic idea of repeated addition of the same number. The numbers that are multiplied are called the factors and the result that is obtained after the multiplication of two or more numbers is known as the product of those numbers.
The given decimal numbers are 3.06 and 4.1.
Now, product =3.06×4.1
= 12.546
To the nearest hundredth is 12.55
Therefore, the product of 3.06 and 4.1 rounded to the nearest hundredth is 12.55.
Learn more about the multiplication here:
https://brainly.com/question/1562995.
#SPJ2
How would you describe the graph of the function in interval 2? Select all that apply.
Answers
Answer:
Decreasing
Step-by-step explanation:
Find the equation of the line specified.
The line passes through the points (-2, 3) and (-4,7)
a. y = -2x-1
y = -4x-1
b. y = -2x +3
d. y = -2x + 7
C.
Please select the best answer from the choices provided
Answers
7-3 divided by -4--2
Slope is -2
substitute point in y=mx+b
7= -2(-4)+b
7=8+b
Move 8 to the other side as a negative number
b is equal to -1
Putting it all together we have y= -2x-1
Therefore, the answer is option a
Answer:
A……
Step-by-step explanation:
Simplify: 3 - ( 5 - 6 / 3 )
Answers
Answer:
0
Step-by-step explanation:
3 - ( 5 - 2)
3 - ( 3)
3-3
0
A gear rotates eight times every 15 seconds how many seconds does it take to rotate 24 times
Answers
Answer:
360
Step-by-step explanation:
Answer:
It would take 45 seconds for a gear to rotate 24 times.
Step-by-step explanation:
8 goes into 24 three times. Just multiply 15 by three.
Hope this helps!
The time of a race is 13.7seconds rounded to 1 decimal place.If the time was x seconds find the inequality in x
Answers
Answer:
13.65 ≤ x < 13.75
Step-by-step explanation:
Let x represent the time in seconds. Since the time is 13.7 seconds when rounded to 1 decimal place, hence for this to be possible the minimum value of x is given as x ≥ 13.65 because 13.65 rounded to 1 decimal place is 13.7 seconds. Also, the maximum value of x is given as 13.75 because 13.75 rounded to 1 decimal place is 13.8 seconds.
Therefore the inequality to represent x is:
13.65 ≤ x < 13.75
As an estimation we are told 5 miles is 8 km.
Convert 17.6 km to miles.
Answers
Answer:
17.6 kilometers are equal to 11 miles.
Step-by-step explanation:
Given that:
8 kilometers = 5 miles
Unit rate in terms of kilometer.
1 kilometer = 5/8 miles
Now,
We have to convert 17.6 kilometers in miles
17.6 kilometers = [tex]\frac{5}{8}*17.6[/tex]
17.6 kilometers = [tex]\frac{5}{8}*\frac{176}{10}[/tex]
17.6 kilometers = 11 miles
Hence,
17.6 kilometers are equal to 11 miles.
Jimmy and Alex each have a CD collection. • The number of CDs in Jimmy's collection can be represented by x. • The number of CDs in Alex's collection is 4 times the number in Walter's collection. • The total number of CDs in both collections is 205. What is x, the number of CDs in Walter's collection?
Answers
Answer:
x = 41
And, the number of CDs in Walter's collection is 41
Step-by-step explanation:
The computation is shown below;
Given that
The number of CDs in Jimmy collection = x
The number of CDs in Alex's collection = 4x
And, The total number of CDs in both collections is 205
So, the equation is
x + 4x = 205
5x = 205
x = 41
The alex collection is
= 4 × 41
= 164
So, the walter collection is
= 164 ÷ 4
= 41
A club raised 175% of its goal for a charity. The club raises $875. What was the goal?
Pls help and thank you
Answers
Answer: The goal was $500
======================================================
Work Shown:
x% = x/100
175% = 175/100 = 1.75
Let g be the goal, which is the amount of money the club wanted to raise
175% of goal = 175% of g = 1.75g
The expression 1.75g represents how much money was actually raised, which was $875. Set the two expressions equal to each other. Solve for g
1.75g = 875
g = 875/1.75 ....... divide both sides by 1.75
g = 500
The club's goal was to raise $500
Note how 75% of $500 is 0.75*500 = 375
When they raised 175% of the goal, this means they went 75% overboard and added on 375 additional dollars (on top of the 500 they wanted). So they got to 500+375 = 875 which lines up with the instructions. This helps verify the answer.
Or we can see that 1.75*g = 1.75*500 = 875 which helps confirm the answer as well.
A rectangle is 1 cm more than twice its width. Find the dimensions of the rectangle if it’s area is 45 cm show all work
Answers
Answer:
Step-by-step explanation:
L=2W+1
A=L*W
A=(2W+1)*W=45
We have two mathematical solutions, but only one viable
2W^2+W=45
w=-5 not valid
w=4.5 cm valid solution
L=10cm
Find the differenfe.
-6-(-6)
Answers
Answer:
0
Step-by-step explanation:
-6 - (-6) = -6 + 6
= 0
Therefore the difference between -6 and -6 is 0.
Please help me as soon as possible
Answers
Answer:
A
Step-by-step explanation:
A is the correct answer
Help please due soon
Answers
Answer:
16
Step-by-step explanation:
D
What is the slope?
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Answers
Answer:
[tex]\displaystyle m=\frac{1}{2}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (0, 40)
Point (20, 50)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute [SF]: [tex]\displaystyle m=\frac{50-40}{20-0}[/tex]Subtract: [tex]\displaystyle m=\frac{10}{20}[/tex]Simplify: [tex]\displaystyle m=\frac{1}{2}[/tex]steven has £1100
he pays £530 for a new tv
his motrtgage is £480
how much money does he have left after playing for the tv and paying for the tv and playing his mortgage
Answers
Answer:
$90
Step-by-step explanation:
$1,100
-$530
-$480
______
$90
If 5x + 2 = 17, then 10x + 4 = 34 True False selle Corporation. All Rights Reserved
Answers
Answer:
hope my answer is helpful to you
plz mark me as brainlist and also follow me
find measure of angle 2 if measure of angle 3 = 125 and measure of angle 4=23
Answers
Answer:
hi
Step-by-step explanation:
Rewrite the radical expression as an expression with a rational exponent.
pls help
Answers
Answer:
come on baexz f** me in 69
Answer:
[tex]\sqrt[7]{x^{3} }= x^{\frac{3}{7} }[/tex]
Step-by-step explanation:
In order to solve this question we need to understand the following.
[tex]\sqrt{x}[/tex] = [tex]x^{\frac{1}{2} }[/tex]
[tex]\sqrt[3]{x} = x^{\frac{1}{3} }[/tex]
[tex]\sqrt[4]{x}= x^{\frac{1}{4} }[/tex]
(Notice that the numerator of the fraction is the power of the x that is being squared)
If you need proof here it is.....
[tex]\sqrt{x} = x^{\frac{1}{2} }[/tex]
[tex](\sqrt{x} )^{2}[/tex] = [tex](x^{\frac{1}{2} } )^{2}[/tex]
x = x
Now that we got that out of the way we can rewrite [tex]\sqrt[7]{x^{3} }[/tex] as........
[tex]\sqrt[7]{x^{3} }= x^{\frac{3}{7} }[/tex]
Express {x+1}{2x-3} as a trinomial.
Answers
Answer:
[tex]2x^2 + 5x + 3[/tex]
Step-by-step explanation:
First, expand the original equation:
(x + 1)(2x + 3)
[tex]2x^2 + 3x + 2x + 3[/tex]
Now simplify:
[tex]2x^2 + 5x + 3[/tex]
And that's your answer!
60 boys in a hostel have food for 30 days. How long would the food last for 72 boys. Tell me how to do it with explanation please
Answers
Answer:
The food will last for 25 days with 72 boys
Step-by-step explanation:
Proportions can be used to find the number of days the food will last for 72 boys.
60 boys in a hostel have food for 30 days.
Let x be the number of days for which the food will last
The proportion or product of both scenarios has to be same as the number of days and number of boys are proportional
Which means
[tex]60*30 = 72 * x\\x = \frac{60*30}{72}\\x = 25[/tex]
Hence,
The food will last for 25 days with 72 boys
You split 5 1/2 hours of volunteer equally over the next three weeks. How much time will you volunteer each week? Label your answer. Place your answer in simplest form. Convert any improper fractions to mixed numbers.
Answers
Answer:
answer my question
Step-by-step explanation:
A radar gun measured the speed of a baseball at 103 miles per hour. If the baseball was actually going 102.8 miles per hour, what was the percent error in this measurement?
Do not include the percent sign (%) in your answer.
Round your answer to two decimal places after solving for the percent.
Answers
Answer:0.194
Step-by-step explanation:
The percent error in this measurement is 0.194%. Step-by-step explanation: Given : A radar gun measured the speed of a baseball at 103 miles per hour.
Answer:
.19%
Step-by-step explanation:
103.0
102.8
- ---------
.2
.2
_______ = .00194
102.8 19%