Answer:
The total cost of the lunch including the tip is $15.21.
Step-by-step explanation:
To find the total cost of the lunch including the tip, first, you need to calculate 17% of the price of the lunch as the statement indicates that that is the tip Joseph leaves the waiter:
$13*17%=$2.21
Now, you need to add that amount to the price of the lunch:
$13+$2.21=$15.21
According to this, the answer is that the total cost of the lunch including the tip is $15.21.
(4). Simplifying polynomials, help pls:) brainliest involved
Answer:
Explanation:
To simplify a polynomial, we have to do two things: 1) combine like terms, and 2) rearrange the terms so that they're written in descending order of exponent.
First, we combine like terms, which requires us to identify the terms that can be added or subtracted from each other. Like terms always have the same variable (with the same exponent) attached to them. For example, you can add 1 "x-squared" to 2 "x-squareds" and get 3 "x-squareds", but 1 "x-squared" plus an "x" can't be combined because they're not like terms.
Let's identify some like terms below.
f(x)=−4x+3x2−7+9x−12x2−5x4
Here you can see that -4x and 9x are like terms. When we combine (add) -4x and 9x, we get 5x. So let's write 5x instead:
f(x)=5x+3x2−7−12x2−5x4
Let's do the same thing with the x-squared terms:
f(x)=5x+3x2−7−12x2−5x4
f(x)=5x−9x2−7−5x4
Now there are no like terms left. Our last step is to organize the terms so that x is written in descending power:
f(x)=−5x4−9x2+5x−7
Step-by-step explanation:
Simplify 2 + 3[4 + (7 – 3) – 23]
*0
*2
*10
*8
what is the answer to -3z > -4.5 ?
Answer:
z<1.5
Step-by-step explanation:
2. The water level of a river was measured each day during a two-week period. The
graph models the linear relationship between the water level of the river in feet
and the number of days the water level was measured.
Water Level of River
The initi
28
Ο Ο Ο
The max
24
20
The wate
16
Water Level (ft)
12
o
The water
CLEAR ALL
4
0
2
4
12
6 8 10
Number of Days
Which statement best describes the y-intercept of the graph?
< PREVIOUS
O 3
Os Oo Or
0.8
HH
Type here to search
O
Step-by-step explanation:
day during a two-week period. The
graph models the linear relationship between the water level of the river in feet
and the number of days the water level was measured.
Water Level of River
The initi
28
Ο Ο Ο
The max
24
20
The wate
16
Water Level (ft)
12
o
The water
CLEAR ALL
4
0
2
4
12
6 8 10
Number of Days
Which statement best describes the y-intercept of the graph?
< PREVIOUS
O 3
Os Oo Or
0.8
HH
Answer:
It is C. The initial water level is 16 ft
Step-by-step explanation:
The Y-intercept goes across 16 lol
which table represents a linear function ?
Answer:
The first one in the left hand corner. And r u from Georgia it look like yu doing iready?
Step-by-step explanation:
Leslie's sister gave Leslie $120 as her celebration gift to get a job. Leslie put all the money into her bank account. Then she started save $100 each month. a. Write an equation in slope-intercept form (v = mx + b) to describe the relationship number of month and the total amount of savings.
Answer:
v = $100x + $120
Step-by-step explanation:
In this scenario, the fixed amount would be the $120 that Leslie's sister gave her. While $100 would be multiplied by the number of months (x) that have passed by which in this scenario would be our variable since we do not have this information. Lastly, these two values would be added to give us Leslie's total savings (v)
v = $100x + $120
If cos(x) = Negative one-fourth and tan(x) < 0, what is sin(2x) ? Negative StartFraction StartRoot 15 EndRoot Over 4 EndFraction Negative StartFraction StartRoot 15 EndRoot Over 8 EndFraction StartFraction StartRoot 15 EndRoot Over 8 EndFraction StartFraction StartRoot 15 EndRoot Over 4 EndFraction
The value of sin(2x) is [tex]\sin(2x) = - \frac{\sqrt{15}}{8}[/tex]
How to determine the value of sin(2x)The cosine ratio is given as:
[tex]\cos(x) = -\frac 14[/tex]
Calculate sine(x) using the following identity equation
[tex]\sin^2(x) + \cos^2(x) = 1[/tex]
So we have:
[tex]\sin^2(x) + (1/4)^2 = 1[/tex]
[tex]\sin^2(x) + 1/16= 1[/tex]
Subtract 1/16 from both sides
[tex]\sin^2(x) = 15/16[/tex]
Take the square root of both sides
[tex]\sin(x) = \pm \sqrt{15/16[/tex]
Given that
tan(x) < 0
It means that:
sin(x) < 0
So, we have:
[tex]\sin(x) = -\sqrt{15/16[/tex]
Simplify
[tex]\sin(x) = \sqrt{15}/4[/tex]
sin(2x) is then calculated as:
[tex]\sin(2x) = 2\sin(x)\cos(x)[/tex]
So, we have:
[tex]\sin(2x) = -2 * \frac{\sqrt{15}}{4} * \frac 14[/tex]
This gives
[tex]\sin(2x) = - \frac{\sqrt{15}}{8}[/tex]
Read more about trigonometry at:
https://brainly.com/question/8120556
Answer:
B
Step-by-step explanation:
on Edge
In a certain country the fines for speeding in a school zone are $160 plus an additional $4 for every mile per hour over the speed limit. A. Write a function to represent the speeding fines
Answer:
T= 160 + 4x
Step-by-step explanation:
Giving the following information:
The $160 fine is a fixed cost. It will remain constant.
The $4 additional fine acts as a variable cost. It varies with the number of miles per hour.
To calculate the total cost (T), we need to use the following formula:
T= 160 + 4x
x= miles per hour exceeding the speed limit.
find the axis of symmetry and vertex of y=-2x^3+8
Answer:
Vertex:(0,8) Axis of Symmetry: x=0
Step-by-step explanation:
The values in the
the range is called the
Answer:
values in range
Step-by-step explanation:
Plz help me answer this!!!!
Answer:
Dude, it could literally be any number. It doesn't even provide us with a starting number to actually solve the problem with XD
Step-by-step explanation:
Graph y = -2x - 1. Plot the y-intercept on the graph.
Answer:
so u put the first point at -1 go down 2 to the right 1
The graph of equation y = - 2x - 1 and the y-intercept (0, - 1) is shown in image.
We have to given that,
To plot the equation y = - 2x - 1 and the y-intercept on the graph.
Since, The equation of line in slope intercept form is,
y = mx + c
Where, m is slope and c in y - intercept.
Here, Equation is,
y = - 2x - 1
After comparing,
y - intercept = - 1
So, y - intercept of equation (0, - 1)
Learn more about the equation of line visit:
https://brainly.com/question/18831322
#SPJ6
i need help like asap ! please someone help
Answer:
should be B
Step-by-step explanation:
Hope it helps
48/5 - 6/25 as a fraction
Answer:
9 9/25
Step-by-step explanation:
234/25 = 9 9/25
Answer:
the answer is 9 9/25
Step-by-step explanation:
Two functions are shown below
f(x)=2x+1 g(x)=−72x−5
What is the approximate value of x when f(x) = g(x)?
A.1.3
B.0.5
C.1.8
D.3.1
−6x + 5y = 16x + 4y = −10
Answer:
[tex]X=-\frac{5}{52}[/tex]
Step-by-step explanation:
[tex]-6x+5y=16x+4y=-10\\Let\\-6x+5y=-10(1)\\16x+4y=-10(2)\\8(1)+3(2):\\48x+48x+40y+12y=-80-30\\52y=-110\\y= -\frac{110}{52} =-\frac{55}{26}[/tex]
replace y into (1):
[tex]-6x+5(-\frac{55}{26})=-10\\-6x=-10-5(-\frac{55}{26} \\x= -\frac{5}{52}[/tex]
PLEASE MARK ME AS BRAINLIEST
The value of 34 + 5 ⋅ 5 = ___.
Larissa rolls to number cubes each with the numbers one through six. Larissa adds the numbers that appear on the role. Which 2 sums have an equal chance of occurring?
3 and 11
4 and 7
5 and 8
Or
6 and 9
Answer:
5 and 8 i think
Step-by-step explanation:
sorry if you get it wrong
Please help me with this
Step-by-step explanation:
The question implies the two angles are equal because of the positioning of the named vertices. m∠A = m∠E so to say.
You can substitute the values and solve the inequality to find x, then solve for m∠A.
m∠A = m∠E; Given (Inferred)
6x - 8 = 4x + 1; Substitution
6x = 4x + 9; Addition Property of Equality
2x = 9; Subtraction Property of Equality
x = 4.5; Division Property of Equality
m∠A = 6x - 8; Given
m∠A = 6(4.5) - 8; Substitution
m∠A = 19; Solve
Hope this helps!!
Rhianna has $100 in a savings account that earns 5% interest per year.The interest is not compounded.How much interest will she earn in 1year?Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
Answer:
$5
Step-by-step explanation:
Using the formula given i=prt we can do the following: 100 x 0.05 x 1= $5
Therefore the total interest after one year would be $5
does anyone know the answer
Answer:
x = 22
Step-by-step explanation:
90 = (5x - 20)
+20 +20
110 = 5x
/5 /5
22 = x
Hope this helps!
Another word for finding the opposite of an integer is BLANK An integer
Answer:
The answer is at the bottom!!
Step-by-step explanation:
Another word for finding the opposite of an integer is negative number of an integer.
Decrease, spend, and decline are examples of words that mean negative. An integer is any positive whole number or its opposite. Here, opposite means sign. So a positive integer has a negative opposite and vice versa.
Hope this helps!!
42+__________=68 vhrvwfruybtglh
Answer:
42 + 26 = 68
Step-by-step explanation:
I hope this helped :)
8(12+a) I'm Having trouble with this
Answer:
8a+96
Step-by-step explanation:
8(12+a)
= 96+8a
Answer:
8a+96 or a+12
Step-by-step explanation:
Distribute
Expand the following:
a)2(x + 3)
Answer:
2x+6Step-by-step explanation:
2(x+3)
=(2)(x+3)
=(2)(x)+(2)(3)
=2x+6
Select all that apply. Proteins _____. are part of antibodies consist of amino acids contain carbon, hydrogen, oxygen, and nitrogen. are derived from fruits and vegetables
Answer:
parts of antibodiesconsist of amino acids containing carbon, hydrogen, oxygen, and nitrogenStep-by-step explanation:
Antibodies are immune system-related proteins called immunoglobulins.
Proteins are made up of amino acids, which are small organic molecules made up of carbon, hydrogen, nitrogen, and oxygen.
Hope that helps.
Use the distribution property to expand 7(8x - 2y) - 5
7(8x - 2y) - 5 = 56x - 14y - 5 [multiply the expression in the parentheses by 7 and then subtract 5]
Please help me out Solve for x and y
Answer:
\sqrt{81 + x^2} = y
\sqrt{y^2 - 7^2} = x
Step-by-step explanation:
They would be Pythagorean Triples.
a^2 + b^2 = c^2
9^2 + x^2 = y^2
\sqrt{81 + x^2} = y
7^2 + x^2 = y^2
x^2 = y^2 - 7^2
\sqrt{y^2 - 7^2} = x
Please help me answer this!!!
Answer:
NO NO NO NO NO
Step-by-step explanation:
I need help with this problem
Answer:
X=13
Step-by-step explanation:
So if ΔABC ≅ ΔDEC, then that means that ∠B is ≅ ∠E. Therefore you would write the equation 3x=6x-39 and solve for X to get 13.