Answer:
49
Step-by-step explanation:
7(4x + 7)
=7*4x + 7*7
=28x +49
Answer:
28x + 49
Step-by-step explanation:
7(4x + 7) = 28x +
28x + 49
Joe has eaten 2/5 of a pizza. Jane has eaten 1/9 of a pizza.
How many times more pizza has Joe eaten than Jane?
please answer and explain the link below
Answer:
See explanation.
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightAlgebra I
FunctionsFunction NotationCalculus
Limits
Right-Side Limit: [tex]\displaystyle \lim_{x \to c^+} f(x)[/tex]Left-Side Limit: [tex]\displaystyle \lim_{x \to c^-} f(x)[/tex]Limit Rule [Variable Direct Substitution]: [tex]\displaystyle \lim_{x \to c} x = c[/tex]
Step-by-step explanation:
Step 1: Define
Identify
[tex]\displaystyle f(x) = \left \{ {{\sqrt{x + 1}, \ x < 3} \atop {5 - x, \ x \geq 3}} \right.[/tex]
Step 2: Find Right Limit
Substitute in variables [Right-Side Limit]: [tex]\displaystyle \lim_{x \to 3^+} 5 - x[/tex]Evaluate limit [Limit Rule - Variable Direct Substitution]: [tex]\displaystyle \lim_{x \to 3^+} 5 - x = 5 - 3[/tex]Subtract: [tex]\displaystyle \lim_{x \to 3^+} 5 - x = 2[/tex]∴ the right-side limit equals 2.
Step 3: Find Left Limit
Substitute in variables [Left-Side Limit]: [tex]\displaystyle \lim_{x \to 3^-} \sqrt{x + 1}[/tex]Evaluate limit [Limit Rule - Variable Direct Substitution]: [tex]\displaystyle \lim_{x \to 3^-} \sqrt{x + 1} = \sqrt{3 + 1}[/tex][√Radical] Add: [tex]\displaystyle \lim_{x \to 3^-} \sqrt{x + 1} = \sqrt{4}[/tex][√Radical] Evaluate: [tex]\displaystyle \lim_{x \to 3^-} \sqrt{x + 1} = 2[/tex]∴ the left-side limit equals 2.
Step 4: Find Limit
The right and left-side limits are equal.
∴ [tex]\displaystyle \lim_{x \to 3} f(x) = 2[/tex]
Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Limits
Book: College Calculus 10e
Darryl was shopping for a new camera. He found one with an original price of
$125.00 and is marked 45% off. Sales tax for the item is 5.2%. What is the final
price of the camera, including tax?
Answer:
$72.33
Step-by-step explanation:
125 * 0.45 = 56.25
125 - 56.25 = 68.75 (marked off price)
68.75 * 1.052 = 72.33 (add sales taxes and round off)
Final price $ 72.33
find the value of x from this figure
Step-by-step explanation:
2x+10=86+x
2x-x=86-10
x=76
I hope you understood :)
Answer:
x = 76
Step-by-step explanation:
2x + 10 = 86 + x (they must be equal because they are alternate exterior angles )
2x - x = 86 - 10
x = 76
A grocery store owner budgets $5,000 to buy and maintain a booth for 300 days to give out samples of food. If she bought the booth for $1,400, how much money, in dollars, can she spend on food each day for samples and stay within budget? Write an inequality that represents this situation and indicate what the solution to the inequality will look like.
Answer:
x ≤ $12 a day
Step-by-step explanation:
5000-1400=3600
3600/300=12
8. What is the equation of the line that passes through the points (0,5) and (1,7)
a. y = 3x - 3
b. y = 2x + 5
y = 4x - 1
d. y = 1/2x + 5
Answer:
B. y = 2x + 5
Step-by-step explanation:
Slope intercept formula y=mx+b
Slope formula y1-y2/x1-x2
First, let's find slope since we are provided 2 pairs of points, we can simply plug in our numbers in the Slope formula (y1-y2/x1-x2)
5-7/0-1
-2/-1
2/1
=2
Slope (m) = 2
Now using slope let's find our y-intercept (b) to plugin in our slope intercept formula (y=mx+b) for this let's use point 0,5
y=2x+b
5=2(0)+b
5=b
Y-intercept (b) = 5
Now let's plug in the slope (m) and the y-intercept (b) into the slope-intercept formula (y=mx+b)
y=mx+b
y=2x+5
So therefore our answer is B
What is the product of (3a)(-6b)(-4)?
help jekrjrifirnrifjrnrifn
Answer:
c
I hope it's the right answer
Monique borrows $5000 for 3 years at 8% per annum simple interest.
How much interest is she charged?
What total amount must she repay?
Answer:
1200 dollars for interest, she must pay 6200
Step-by-step explanation:
8 percent of 5000 is 400 times 3 (years) is 1200
Answers:
a) $1200 in interest is charged.b) $6200 must be paid back in total.=============================================
Work Shown:
a)
i = P*r*t
i = 5000*0.08*3
i = 1200 is charged in simple interest
---------------------------
b)
She must pay back the amount borrowed ($5000) which is the principal as well as the interest calculated in part a) earlier.
The total amount she must pay back is 5000+1200 = 6200 dollars
3
A rectangle is 20 cm long and 8 cm wide find the perimeter
(1 Point)
56 cm
28 cm
110 cm
52 cm
12% of 4 meters ( in cm)
Answer:
48 cm
Step-by-step explanation:
percent x meters x centimeters in meters
.12 x 4 x 100
Answer:
48 cm
Step-by-step explanation:
12/100 * 4 = 48 meters
1 meter = 100 cm
0.48 m = x Cross Multiply
1*x = 0.48 * 100
x = 48 cm
Which number on the number line should be plotted?
Guys I need your help , what is - 16t2 + 64+ + 3?
Answer:
the answer is -32t + 67
Step-by-step explanation:
-16t2 +64 + 3
= -16t x 2 +64 +3
= -32t +67
Answer:
−16[tex]t^{2}[/tex]+67Step-by-step explanation:
Help please, I swear I can't even try on this. I'm just gonna die if I try.
Answer:
1) word form
three million,two hundred and ninety eight thousand and seventy six
expanded form
5000000+3000+87
2)5,003,087
3)64,000,239
What is the solution to the system of equation?
Answer:
x = 0
y = 3
Step-by-step explanation:
-x - 2y = - 6
0 - 2(3) = -6
6 = 6
-3x + 2y = 6
-3(0) + 2(3) = 6
0 + 6 = 6
Review this code snippet: var time = 15; var greeting; if ( time < 12 ) { greeting = “good morning”; } else if ( time < 18 ) { greeting = “good afternoon”; } else { greeting = “good evening”; } console.log(greeting); What is the message that gets printed to the console?
Explanation:
We're given that time = 15
From this, we see that time < 12 evaluates to false, because 15 is not smaller than 12. Put another way, 15 < 12 is false.
But time < 18 is true since 15 < 18 is true. So we execute the second block of code and have the greeting variable be set to the string "good afternoon". This is what's displayed to the console without any quotes of course.
Pls help me on this lol
Answer:
I think that this will help you out.
Step-by-step explanation:
please help will give brainlist
Answer:
x=6,y=16 that's what I got
Which transformation preserves the property of a shape of a figure
If 1 kg of milk had 0.264 kg of fat, then find the amount fat in 12.5 kg of milk.
1 kg--> 0.264 kg fat
:. 12.5 kg--> (0.264*12.5) 3.3 kg fat
Mark me brainliesttt :))
which number is represented by the number line
Answer: B
Step-by-step explanation: The number line has tally marks up to 3, so 3 has to be divided by something, meaning A and C do not work. There are 9 total tally marks circled, so the equation equals 9, leaving B as the only possible answer. Also, there are three tally marks per whole number, so each tally is 1/3, which is equal to 2/6, further proving it is B.
A 7-ounce jar of instant coffee costs $11.78. Find the cost per ounce. Round to the nearest cent.
Answer:
1.68 per ounce
Step-by-step explanation:
11.78÷7=1.68285714286
1.68285714286 rounded to the nearest cent =1.68
Write this sentence as an equation. What is m?
The sum of 11 and m is 15
Answer:
11+m = 15
m = 4
Step-by-step explanation:
Sum means add and is means equals
11+m = 15
Subtract 11 from each side
11+m-11 =15-11
m = 4
Layla and Bobby are making potholders with their grandmother. They have a total of 1.5 yards of fabric they can use, and it takes one-eighth of a yard to make each potholder. What is the maximum number of potholders they can make?
What is the nth term rule of the linear sequence below?
22,18,14,10,6.....
Answer:
it goes down by 4 every time
I really need help with this
Answer:
A. x = 3, y = -3
B. a = -2, b = 5
C. try your best ill see u later
Step-by-step explanation:
Okay I'mma state some stuff first 3^a + 3^b = 3^(a+b)
and 3^a/3^b = 3^(a-b)
So first equation 3^3*3^-3=3^0
So second equation 3^3/3^-2 = 3^5
So third equation I dont really know the rule but I'mm just plug in a random number for g, like 2, then solve the thing like a normal equation.
So 3^-3 x f^-3 = 12^2 = 144, f^-3 = 144/(3^-3 or 1/27) = 144 x 27 = 3888
so f^-3 = 3888, f = well its an imaginary number according to calculator so u try your best on the last one
At the dress shop, Sherry is building buttons into packages. She has reached the 867 th button and is packing the 34 th package when she is asked to take her lunch break . She needs to note the number of buttons that are in the package so when she returned she will continue she will continue . How many buttons does package 34 contain? dont send in file explain plz
Answer:
9 buttons in package 34
Step-by-step explanation:
There are 26 buttons in each box.
26 * 33 = 858 for the first 33 full boxes
867 - 858 = 9 buttons in the 34th box
B = buttons per box
33*B<867 --> B < 26.27
34*B>867 --> B > 25.5
So 25.5 < B < 26.27, therefore B = 26 buttons per box
Find the sum.
Express your answer in-simplest
form.
-6u-9/v^2- 8 + 6u+3/v^2-8
help me please question in the picture...
Answer:
Obtuse triangle
Step-by-step explanation:
Obtuse triangle has one of its angle measure bigger than 90 degrees and the given measures are 25, 135, and 20 so the correct answer is obtuse.
Use the formula w = to find the value of the missing variable.
T
radians. w
radian per min
Answer:
Step-by-step explanation:
