Answer:
shooooot PROLLY LIKE 20 FEET :p
Step-by-step explanation:
Answer:
3 inches
Step-by-step explanation:
-4+3b^2=143
Simplest radical form
Answer:
[tex] - 4 + 3b {}^{2 } = 143 \\ 3b {}^{2} = 143 + 4 \\ 3b {}^{2} = 147 \\ b {}^{2} = \frac{147}{3} \\ b {}^{2} = 49 \\ b = 7[/tex]
35. Look at the expression. 14 + Which shows an equivalent expression that can be used to find the sum? a) 14+ 7
Answer:
14/1 x 7/7 = 35/1
Step-by-step explanation:
The mean temperature for the first 7 days in January was 3 °C.
The temperature on the 8th day was 2 °C.
What is the mean temperature for the first 8 days in January?
[tex]m = \frac{a_1 + a_2 + ... + a_n}{n}\\~\\m = \frac{3 * 7 + 2}{8} = \frac{21 + 2}{8} = \frac{23}{8} = 2,875[/tex]
Answer: 2,875.
Given The recourse recursive formula, find the first four terms:
Answer:
c
Step-by-step explanation:
we are given that
[tex] \displaystyle a_{n} = - 3 \: \cdot a_{n - 1} \\ a_{1} = 45[/tex]
we are already given our first term i.e 45
for second term
[tex] \displaystyle a_{2} = - 3 \: \cdot a_{2- 1} [/tex]
simplify substraction:
[tex] \displaystyle a_{2} = - 3 \: \cdot a_{1} [/tex]
since we have [tex]a_1=45[/tex]
substitute:
[tex] \displaystyle a_{2} = - 3 \: \cdot 45[/tex]
simplify multiplication:
[tex] \displaystyle a_{2} = - 135[/tex]
for third term
[tex] \displaystyle a_{3} = - 3 \: \cdot a_{3- 1} [/tex]
simplify Substraction:
[tex] \displaystyle a_{3} = - 3 \: \cdot a_{2} [/tex]
as [tex]a_2=-135[/tex]
substitute:
[tex] \displaystyle a_{3} = - 3 \: \cdot - 135[/tex]
simplify multiplication:
[tex] \displaystyle a_{3} = 405[/tex]
for forth term
[tex] \displaystyle a_{2} = - 3 \: \cdot a_{4- 1} [/tex]
simplify Substraction:
[tex] \displaystyle a_{2} = - 3 \: \cdot a_{3} [/tex]
substitute:
[tex] \displaystyle a_{2} = - 3 \: \cdot 405[/tex]
simplify multiplication:
[tex] \displaystyle a_{2} = - 1215[/tex]
hence,
the first four terms are 45,-135,405,-1215
Step-by-step explanation:
hence,
the first four terms are 45,-135,405,-1215
if f(x)=×^2-81andg(x)
9514 1404 393
Answer:
the correct choice is marked
Step-by-step explanation:
[tex]f(x)\cdot g(x)=(x^2-81)\dfrac{x+9}{x-9}=\dfrac{(x-9)(x+9)(x+9)}{(x-9)}\\\\=\boxed{(x+9)^2}[/tex]
3/4-2/3=what does it equal
Answer:
1/12
Step-by-step explanation:
[tex] \frac{3}{4} - \frac{2}{3} = \frac{9 - 8}{12} = \frac{1}{12} [/tex]
Question 1 of 20 :
Select the best answer for the question.
1. What is 7/4 as a mixed number?
A. 13/
B.314
c. 17/4.
D. 11/4
Mark for review Will be highlighted on the review page)
Next Question >>
Answer: 1 & 3/4
We can write this as [tex]1 \frac{3}{4}[/tex]
============================================
Explanation
Consider this: You have 7 donuts and 4 friends you want to split the donuts with. The question is, how many donuts does each of your friends get?
The number 7 isn't a multiple of 4, meaning 7/4 won't result in a whole number. If you had one more donut, then 8/4 = 2 is a whole number. So that must mean everyone only gets one whole donut plus some leftover amount.
If those 4 friends get 1 whole donut each, then 4*1 = 4 donuts are passed out and 7-4 = 3 are left over. The "1" forms the whole part of the mixed number, while the '3' is the numerator of the fraction. The denominator stays the same at 4.
So we go from the improper fraction 7/4 to the mixed number 1 & 3/4. Each person gets 1 whole donut and then 3/4 of a whole donut
------------
We can write the mixed number 1 & 3/4 as [tex]1 \frac{3}{4}[/tex]. Keep in mind that this expression does not mean 1 times 3/4. Instead, it really is saying 1 + (3/4).
Hailey has a rectangular garden in her back yard. The garden has a width of 3 1/4 feet and a length of 7 1/2 ft. Hailey wants to expand the garden to have an area of 32 1/2 feet squared but she wants to keep the same width. Determine the length of the garden when the area is 32 1/2 ft squared.
Answer:
fiduhguhgfbuifhff
Step-by-step explanation:
lfhmiofioe
Simplify plz
I really need help
Answer:
x²-4x+4=(x-2)²
√(x-2)²=|x-2|
2>x
=2-x
PLS HELP ASAP!!!!!!
THANK UUU
Answer:
a: is 36
Step-by-step explanation:
Find the derivative
Answer:
[tex]\displaystyle f'(x) = \frac{-3}{2\sqrt{2 - 3x}}[/tex]
General Formulas and Concepts:
Algebra I
Terms/Coefficients
Expanding/FactoringFunctions
Function NotationCalculus
Limits
Limit Rule [Variable Direct Substitution]: [tex]\displaystyle \lim_{x \to c} x = c[/tex]
Differentiation
DerivativesDerivative NotationDefinition of a Derivative: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{f(x + h) - f(x)}{h}[/tex]Step-by-step explanation:
Step 1: Define
Identify
[tex]\displaystyle f(x) = \sqrt{2 - 3x}[/tex]
Step 2: Differentiate
Substitute in function [Definition of a Derivative]: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{\sqrt{2 - 3(x + h)} - \sqrt{2 - 3x}}{h}[/tex]Expand: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{\sqrt{2 - 3x - 3h} - \sqrt{2 - 3x}}{h}[/tex]Rationalize: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{\sqrt{2 - 3x - 3h} - \sqrt{2 - 3x}}{h} \cdot \frac{\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x}}{\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x}}[/tex]Simplify: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{2 - 3x - 3h - (2 - 3x)}{h(\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x})}[/tex]Expand: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{2 - 3x - 3h - 2 + 3x}{h(\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x})}[/tex]Combine like terms: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{-3h}{h(\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x})}[/tex]Simplify: [tex]\displaystyle f'(x) = \lim_{h \to 0} \frac{-3}{\sqrt{2 - 3x - 3h} + \sqrt{2 - 3x}}[/tex]Evaluate limit [Limit Rule - Variable Direct Substitution]: [tex]\displaystyle f'(x) = \frac{-3}{\sqrt{2 - 3(0) - 3h} + \sqrt{2 - 3x}}[/tex]Simplify: [tex]\displaystyle f'(x) = \frac{-3}{2\sqrt{2 - 3x}}[/tex]Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Differentiation
HELP WITH THIS MATH QUESTION PLS ^^ TY!
Answer:
volume of a brick: 10(7)(5) = 350 [tex]in^3[/tex]
14000/350 = 40 bricks
A ladder that is 15 feet long is leaning against the side of a building. If the angle formed between the ladder and the ground is 70 degrees, how far is the bottom of the ladder from the building?
Answer:
need help too
Step-by-step explanation:
Answer:
5.13 feet...take the horizontal component using given data..
What would be x please help me
Answer:
[tex]18.83[/tex]
Step-by-step explanation:
For right triangles only, the tangent of an angle is equal to its opposite side divided by its adjacent side.
Therefore, we have the equation:
[tex]\tan 33^{\circ}=\frac{x}{29},\\x=29\tan 33^{\circ}\approx \boxed{18.83}[/tex]
Help me out please ???
9514 1404 393
Answer:
(1, 2)
Step-by-step explanation:
PR and QR are vertical and horizontal line segments, respectively. Then ΔQPR is a right triangle, and segment PQ is the hypotenuse. As such, segment PQ is also a diameter of the circumcircle, and its midpoint is the circumcenter.
Circumcenter = (P+Q)/2 = ((4, 0) +(-2, 4))/2 = (2, 4)/2
Circumcenter = (1, 2)
what is the volume of the composite figure page 512 chapter 11 4
help is very much appreciated!
Answer:
b and a I hope I am right plz tell me the correct answer if I'm wronh
A certain manufactured product is supposed to contain 23.2% potassium by weight. A sample of 10 specimens of this product had an average percentage of 23.6 with a standard deviation of 0.3. If the mean percentage is found to differ from 23.2, the manufacturing process will be recalibrated. State the appropriate null and alternate hypotheses.
Answer:
The null hypothesis is [tex]H_0: \mu = 23.2[/tex]
The alternate hypothesis is [tex]H_a: \mu \neq 23.2[/tex]
Step-by-step explanation:
Null hypothesis:
The product is supposed to contain 23.2% potassium by weight, which means that at the null hypothesis, we test that this is the correct weight. So
[tex]H_0: \mu = 23.2[/tex]
Alternate hypothesis:
If the mean percentage is found to differ from 23.2, the manufacturing process will be recalibrated, which means that we test if the mean differs from 23.2, that is:
[tex]H_a: \mu \neq 23.2[/tex]
-5(6n+6)=30 I need help
Answer:
N= -2
Step-by-step explanation:
Jason completed 1 crosswords on Tuesday and 1 crosswords on Saturday
in total what fraction of these crosswords did Jason finish?
The question is incomplete as the total number I crosswords required for completion isn't given :
Hypothetically, if the total Number of cross words is taken as x ;
Answer:
2 /x
Step-by-step explanation:
The number of crosswords John did = 1 + 1 = 2
Total number of cross words = x
Fraction of crosswords John did :
2 / total number of crosswords
2 / x
Kindly substitute the actual number of crosswords for X to obtain exact answer.
Write the equation of a line perpendicular to the line:
y=43x−1
that goes through the point (-6, -6).
Write your answer in slope- intercept form, using reduced fractions for the slope and intercept.
For each of the following scenarios, simply state WHICH technique would be the most appropriate method to analyze the results.
a. Sam wants to know if students spend more time studying for midterms or for finals. She asks 30 people how many hours they studied for each exam, and records their responses. She expects that students spend more time studying for finals.
b. Michael thinks that people who travel more report higher quality of life. To test this, Michael studies a group of 20 people across many years. He gets them to rate their quality of life (on a scale from 1-10) before they’ve travelled at all, again after they’ve taken their first trip abroad and again after their third trip abroad. Michael compares the data at the three time points to see if his hypothesis is correct.
c. Meredith wants to know if a new medication affects sleep. So, she takes a sample of 81 people and has them all take the medication for a week. During that time, those 81 people record the number of hours they slept. If you are given M = 42, µ = 45 and σ = 8, how can you determine whether the medication affects the number of hours people sleep.
d. In the previous question, if you were given the standard deviation for the group of 81 people only, instead of σ, what would you do to answer the same question?
Answer:
Below is the solution to the given points:
Step-by-step explanation:
For point a:
There have 30 overviews paired here and we'd like to analyze the mean studying time in the middle and final periods. It will employ a paired t-test. The difference (d) = mid - final
Hypotheses:
[tex]H_o: \mu_d \geq 0\\\\H_a: \mu_d < 0[/tex]
For point b:
More than three variables should be examined here because ANOVA is employed in one method.
For point c:
This one Z test is used since we have the standard difference in population.
Hypotheses:
[tex]H_o:\mu = 45\\\\ H_a:\mu\neq 45[/tex]
For point d:
Since not knowing the sample standard deviation, we will use an individual sample t-test.
Hypotheses:
[tex]H_o: \mu = 45\\\\ H_a: \mu \neq 45[/tex]
find the value of X if: x-30%ofx=rs70
Answer:
Step-by-step explanation:
x-30% 0f x=70
x-30/100*x=70
100x-30x/100=70
70x=70*100
x=7000/70
x=100
Answer:
[tex]X - 30 \% \ of \ X = 70\\\\Using \ BODMAS \ first \ priority \ for \ 'of'\\\\X - (30 \% \ of \ X) = 70\\\\ X - (\frac{30}{100}\times X) = 70\\\\X - \frac{30X}{100} = 70\\\\\frac{100X -30X}{100} = 70\\\\70X = 70 \times 100\\\\X = \frac{7000}{70} = 100[/tex]
Two students in the same Spanish class, Perry and Dakota, plan to get together after school
to make vocabulary flashcards. Perry started on the project yesterday and has already made
5 flashcards. Dakota hasn't started yet. Since Perry makes 4 flashcards per minute and
Dakota makes 5 flashcards per minute, Dakota will soon have the same number of
flashcards. How many flashcards will each student have at that point?
Write a system of equations, graph them, and type the solution.
Answer:
Dakota=20 perry=25 together= 45
Step-by-step explanation:
First step, remember to keep 5
second step, if they are find keep multiplying until they both meet the same number which is 20, but they both have 20. But Perry will have 25 since he started a day before
The graph of a proportional relationship and an equation are shown.
What is the greater unit rate?
Answer:
Graph has the greater unit rate.
Step-by-step explanation:
From the graph attached,
Since, graph shows the proportional relationship,
y ∝ x
y = kx
Here, k = unit rate
If the line given in the graph passes through (0.2, 1.5)
Slope of this line will be,
k = [tex]\frac{1.5}{0.2}[/tex]
k = 7.5
Therefore, unit rate = 7.5
Equation of the line given in the question is,
[tex]y=\frac{11}{2}x+3[/tex]
Comparing this equation with the y-intercept form of the equation,
[tex]y=mx+b[/tex]
Slope of this line 'm' = [tex]\frac{11}{2}[/tex]
= 5.5
Unit rate of the given equation = 5.5
Therefore, graph has the greater unit rate.
x + 2y = 3
3x - 2y = 5
What is the solution to the system of equations?
A)
(4, 3.5)
B)
(2,3)
(2, -1)
D)
(3, 2)
Answer:
x=2, y=1/2. (2, 1/2).
Step-by-step explanation:
x+2y=3
3x-2y=5
-------------
4x=8
x=8/4
x=2
2+2y=3
2y=3-2
2y=1
y=1/2
si tengo 6 burros regalo 3 y me dan 3 cuanto tengo
Answer:
6
Step-by-step explanation:
(6-3)+3=6
ANSWER ASAP DONT SEND A FILE WHAT IS THE TRANSFORMATION????
Answer:
Hi, I believe this is reflection then rotation. I haven't studied this in some time but from what I remember I think that would be the right answer. I hope I helped, have a nice day :)
Answer:
Reflection, then translation.
Step-by-step explanation:
1 flips to the other side to create 2 and 2 slides, or translates, to create 3.
50 POINTS
Solve by linear combination
2x-4y=4
x-4y=10
Write your answer as an ordered pair with no spaces (x,y)
Answer:
(1/2,1/4) because m= 1/5 and m= 1/2 and te equation is y=1/4x - 5/2 and y= 1/2x - 1
Substracting both
[tex]\\ \sf\Rrightarrow x=4-10=-6[/tex]
Putting in eq(2)
[tex]\\ \sf\Rrightarrow -6-4y=10[/tex]
[tex]\\ \sf\Rrightarrow -4y=16[/tex]
[tex]\\ \sf\Rrightarrow y=-4[/tex]
Hence our solution is
(x,y)=(-6,-4)The following data values represent a population. What is the variance of the
values?
6, 10, 14,2
A. 16
B. 8
C. 10
D.20
Answer:
D is the correct answer.......