happy to you are you happy
Please help solve this
Answer:
LCD= x²- 81
Step-by-step explanation:
x²-81 is difference of two squares
a²-b²= (a+b)(a-b)
x²- 81= (x+9)(x-9)
denominators, (x-9) and (x+9)(x-9)
x-9 is common in both denominators
x-9|(x-9)|(x+9)(x-9)
x+9| 1 | x+9
| 1 | 1
therefore the LCD= (x-9)(x+9)
simplifying= x²- 81
find answer
the rounded one
Answer:
229.6 square units
Step-by-step explanation:
19.9×16.8=334.32
19.9-4-4=11.9
16.8-4-4= 8.8
11.9×8.8= 104.72
334.32-104.72= 229.6 sq units
Can someone please help me
Answer:
Option 2: y = a(x + 1)² - 9
Step-by-step explanation:
Given the graph of an upward-facing parabola, whose vertex occurs at point (-1, -9) as its minimum point.
Vertex FormUsing the vertex form of the quadratic equation, y = a(x - h)² + k:
where:
a = determines the wideness and the direction of where the graph opens.
(h, k) = vertex
h = determines the horizontal translation of the graph
k = determines the vertical translation of the graph
Using the vertex, (-1, -9), and another point from the graph, (2, 0), substitute these values into the vertex form to solve for the value of a:
y = a(x - h)² + k0 = a[2 - (-1)]² - 9
0 = a(2 + 1)² - 9
0 = a(9) - 9
Add 9 to both sides to isolate a:
0 + 9 = 9a - 9 + 9
9 = 9a
Divide both sides by 9 to isolate a:
[tex]\displaystyle\mathsf{\frac{9}{9}\:=\:\frac{9a}{9}}[/tex]
a = 1
Final answer:Therefore, the vertex form of the given parabola is: y = a(x + 1)² - 9.
Find the expected value of the winnings from a game that has the following payout probability distribution: Skip Payout ($) 1 2 5 8 10 Probability 0.35 0.2 0.1 0.2 0.15 Expected Value = [?] Round to the nearest hundredth.
Answer:
$4.35
Step-by-step explanation:
The expected value of a random variable X, often denoted as E(X), indicates the probability-weighted average of all possible values/events. The general formula of expected value is
[tex]\mathrm{E(\textit X \mathrm)} = \displaystyle\sum_{\mathclap{i=1}}^{k} \ X \times P(X) \\ \\ \\ = X_{1} \times P(X_{1}) \ + \ X_{2} \times P(X_{2}) \ + \ X_{3} \times P(X_{3}) + \ \cdots \ + X_{k} \times P(X_{k})[/tex].
Therefore, the expected value of the winnings from a game is
[tex]\mathrm{E(\textit X \mathrm)} \ = \ 1 \times 0.35 \ + \ 2 \times 0.2 \ + \ 5 \times 0.1 + \ 8 \times 0.2 \ + 10 \times 0.15 \\ \\ = \ 4.35 \ \ (\mathrm{nearest \ hundredth})[/tex].
Complete the table for this equation. y=x+6
Answer:
Step-by-step explanation:
6/5 pls help as fast as possible
Answer: 6 divided by 5 is 1.2
Step-by-step explanation: I used Siri lol
Answer:
1.2 in decimal form. equivalent form-12/10. i really dont know what your asking. so i hope this is what you wanted.
Step-by-step explanation:
last 2 tutor find it wrong pls help me
Answer:
g(x) = 4x² -x +64
Step-by-step explanation:
The integral of f(x) will be continuous. This means the value must be the same for x = 4- as for x = 4+.
For some constant c1, the integral in the region x ≤ 4 is ...
∫f(x)dx = (4x² -x +c1) +C = g(x) +C
The integral in the region x ≥ 4 is given as ...
∫f(x)dx = 31x +C
Evaluated at x=4, we must get the same value from either expression:
4(4²) -4 +c1 +C = 31(4) +C
60 +c1 = 124
c1 = 64
__
In order to make the integral continuous at x=4, we must have ...
g(x) = 4x² -x +64
8. The circle centered at Q is a scaled copy of the circle center
at R. (Lesson 3-1)
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a. Find the scale factor
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3
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5
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b. Find the value of x.
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Answer:
scale factor is: 1:4
the value of x is: x=4
Step-by-step explanation:
to find the answer, you do
x= √5² - 3² = √25 - 9 = √16 = 4
67*25 helpppp pleaseeee
Answer:
1675
Step-by-step explanation:
do people not have calculators?
Find the value of x so that the line passing through (-3,7) and(x,5) has a slope of -4
Answer:
x= -5/2 or -5.2
Step-by-step explanation:
you know the equation: y=mx+b, so we can substitute the -3 for x, the 7 for y and the -4 for m:
7=-4(-3)+b
now solve:
7=12+b
subtract 12 on both sides:
b=-5
now what you want to do is substitute it in and solve for x:
y=-4x-5
so:
5=-4x-5,
solve:
10=-4x
x=-5/2!!!!!!!!!!!!!!
hope this helped :)
6^9+6^8)/(6^8*6^-9)
HELP PLS
Step-by-step explanation:
Question:-To simplify the expression Expression:-[tex] \frac{( {6}^{9} + {6}^{8} )}{( {6}^{8} \times {6}^{ - 9} )} [/tex]Solution :-[tex] = \frac{( {6}^{9} + {6}^{8} )}{( {6}^{8} \times {6}^{ - 9} )} [/tex]
[In numerator we take 6^8 common][tex] = \frac{ {6}^{8} ( {6} + 1)}{( {6}^{8} \times {6}^{ - 9} )} [/tex]
[On Simplification][tex] = \frac{( {6}^{8} \times 7)}{( {6}^{8} \times {6}^{ - 9} )} [/tex]
[In denominator as we know, a^x × a^y = a^(x+y)][tex] = \frac{( {6}^{8} \times 7)}{( {6}^{8 + ( -9)} )} [/tex]
[On Simplification][tex] = \frac{( {6}^{8} \times 7)}{( {6}^{ - 1} )} [/tex]
[As we know, 1/a^-1 = a ][tex] = {6}^{8} \times 7 \times 6[/tex]
[On further multiplying of 6][tex] = {6}^{9} \times 7[/tex]
Result:-In exponential form:
[tex] = {6}^{9} \times {7}^{1} (ans)[/tex]
In numerical form:
70,543,872 (Ans)
[tex] \huge \: \bf \: Question:—[/tex]
[tex] \sf \longmapsto6^9+6^8)/(6^8 \times 6^{-9})[/tex]
[tex]\huge\bf Solution:—[/tex]
[tex]\sf \longmapsto \: \dfrac{ {6}^{9} + {6}^{8} }{ {6}^{8} \times {6}^{ - 9} } [/tex]
[tex]\sf \longmapsto \dfrac{10077696 + {6}^{8} } { {6}^{8} \times {6}^{ - 9} } [/tex]
[tex]\sf \longmapsto \dfrac{10077696+1679616}{ {6}^{8} \times {6}^{ - 9} } [/tex]
[tex]\sf \longmapsto \: \dfrac{11757312}{{6}^{8} \times {6}^{ - 9}} [/tex]
[tex]\sf \longmapsto \dfrac{11757312}{1679616(6 {}^{ - 9} )} [/tex]
[tex] \boxed{\bf \: As \: a^{-n} = 1/a(n) \: ,}[/tex]
[tex]\sf \longmapsto \dfrac{11757312}{1679616 \bigg(\dfrac{1}{10077696} \bigg )} [/tex]
[tex]\sf \longmapsto \dfrac{11757312}{ \dfrac{1}{6} } [/tex]
[tex]\sf \longmapsto \: \: 70543872[/tex]
[tex] \boxed{\bf \: \: \: Convert\: 70543872 \: to\: scientific \: notation}[/tex]
[tex] \sf \longmapsto \: 7.0543872 × 10 {}^{7} [/tex]
[tex]\boxed{ \bf \: \: Convert\: 70543872 \: to\: exponent}[/tex]
[tex]\sf\longmapsto {6}^{9} \times 7 [/tex]
_________________________________
[tex] \boxed{\bf \: Answer\: in\: Number}:—[/tex]
[tex] \boxed{\bf \: 70543872}[/tex]
[tex]\boxed{ \bf \: Answer\: in\: Exponent:—}[/tex]
[tex] \boxed{\bf \: {6}^{9} \times 7}[/tex]
[tex]\boxed{\bf Answer\: in\: Scientific\: Notation:—}[/tex]
[tex]\boxed{ \bf \: 7.0543872 × 10 {}^{7} }[/tex]
Mrs. Montgomery earns a 6.5% commission on her total sales. Last month, she had sales of $55,780. How much commission did Mrs. Montgomery earn last month?
Answer:
3625.7
Step-by-step explanation:
hope that will help goodbye
please explain how to do this. tried to solve but cant do it
Answer:
2.55km
Step-by-step explanation:
[tex]d=st[/tex]
where:
d=distance
s=speed
t=time
[tex]s=\frac{3.4 \ \text{km}}{\text{hr}}\\[/tex]
[tex]t=0.75 \text{hr}[/tex]
[tex]d=st=(\frac{3.4 \text{km}}{\text{hr}})(0.75 \text{hr}})=2.55 \text{km}\\[/tex]
Answer:
[tex]3\frac{2}{5}[/tex] × [tex]\frac{3}{4}[/tex] [tex]= 2\frac{11}{20}[/tex] km
= 2.55 km
Sally used a ruler to draw the segment ab she then opened her compass to the length of ab and drew a circle keeping thw compass open to the same length she marked off equal parts along the circle as shown in the following figure using some or all of the points of intersection and point a which of the following regular polygons could she construct
Answer:
Step-by-step explanation:
Equilateral Triangle
Regular Hexagon
how would i plot this on a graph??
Step-by-step explanation:
This is in the form of
[tex]h(x) = y[/tex]
in this case, x is 1 and y is 7. So ourbpoint would be (1,7.)
Find the disFind the distance between the points P and Q shown.
tance between the points P and Q shown below
Step-by-step explanation:
I am sorry but please give detailed question
Deondra needs to order some new supplies for the restaurant where she works. The restaurant needs at least 624 glasses. There are currently 344 glasses. If each set on sale contains 20 glasses, write and solve an inequality which can be used to determine ss, the number of sets of glasses Deondra could buy for the restaurant to have enough glasses
Writing and solving an inequality to model the situation, it is found that Deondra could buy 14 sets of glasses for the restaurant to have enough glasses.
There are currently 344 glasses.In each set bought, there are 20 glasses.Hence, the total of glasses after s sets are bought is given by:
[tex]T(s) = 344 + 20s[/tex]
The restaurant needs at least 624 glasses, hence:
[tex]T(s) \geq 624[/tex]
[tex]344 + 20s \geq 624[/tex]
Solving the inequality:
[tex]344 + 20s \geq 624[/tex]
[tex]20s \geq 280[/tex]
[tex]s \geq \frac{280}{20}[/tex]
[tex]s \geq 14[/tex]
Deondra could buy 14 sets of glasses for the restaurant to have enough glasses.
A similar problem, in which an inequality is used to model a situation, is given at https://brainly.com/question/25235995
basically how to write y-3=4(x+2) in slope intercept form
Answer: y = 4x + 11
Step-by-step explanation:
The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.
y = mx + b
Rewrite in slope-intercept form.
Simplify the right side.
Simplify 4(x + 2).
y - 3 = 4x + 8
Move all terms not containing y to the right side of the equation.
Add 3 to both sides of the equation.
y = 4x + 8 + 3
Add 8 and 3.
y = 4x + 11
Your Welcome! :)
Boy Scouts Popcorn Sales
Matt:8
Byron:16
Tim:8
Marcos:12
Ahmed:4
Based on the ratio of Popcorn boxes sold
by Ahmed to total sold by the whole
group, if Ahmed sold 5 more boxes of
popcorn, how many more would the
whole group have to sell to keep the ratio
the same?
A. 55
B. 58
C. 60
D. 70
Answer:
60
Step-by-step explanation:
5 plus 4 is nine.
I based everything on how much times more it was at first, and did that times 9 for every name.
I added up how much more boxes they got in total and got 60.
Solve for x.
8x - 5 = 6x + 8x + 10
Therefore, we found that x = -5/2.
Hoped this helped.
[tex]BrainiacUser1357[/tex]
Latex paint sells for $21 per gallon and will cost you $210 to paint your room. If each gallon will cover 300 square feet, how many square feet of wall space do you have in your room?
square feet
Answer: 3000 square feet
Step-by-step explanation: 21x10=210 . 300x10=3000
a cookie recipe included 2/3 cups of sugar for 12 cookies, how many cups of sugar will you need if you wanted to make 42 cookies
Answer:10/6 cups of sugar is the answer to this equation being the correct answer.
Step-by-step explanation:
What is the "theoretical yield" of cookies from each of the "reactants?"
What is an equivalent ratio
Answer:
Equivalent ratios (which are, in effect, equivalent fractions) are two ratios that express the same relationship between numbers. We can create equivalent ratios by multiplying or dividing both the numerator and denominator of a given ratio by the same number. Two ratios that have the same value are called equivalent ratios. To find an equivalent ratio, multiply or divide both quantities by the same number. It is the same process as finding equivalent fractions.
Solve using substitution,
y = -3
x + 3y = -6
Please help
Answer:
x=3
Step-by-step explanation:
x+3(-3)=-6
x-9=-6
+9 +9
x=3
Answer:
x=3 y=-3
Step-by-step explanation:
solve for x then substitute x in the original problem then solve for y
(a) The perimeter of a rectangular garden is 320 m.
If the width of the garden is 74 m, what is its length?
(b) The area of a rectangular window is 5723 cm?
If the length of the window is 97 cm, what is its width?
Width of the window: cm what is the width
Answer:
86 m, 59 cm
Step-by-step explanation:
a. perimeter is 2L + 2W
320 = 2L + 2(74)
320 = 2L + 148
172 = 2L
86 m is length
b. area = L x w
5723 = 97 x w
5723/97 = 2
59 cm is width
inverse function of y = 3x
Answer:
f-1(x) = 1/3x would be the answer
Step-by-step explanation:
Answer:
y= 1/3x
Step-by-step explanation:
inverse function perform the opposite.
3/1 becomes 1/3
In a cookie jar,
1
5
of the cookies are chocolate chip and
1
2
of the rest are peanut butter. What fraction of all the cookies is peanut butter?
Which tape diagram shows the cookies that are chocolate chip?
All cookies
Chocolate
chip
All cookies
Chocolate
chip
All cookies
Chocolate
chip
Excellent!
Which tape diagram shows the cookies that are peanut butter?
All cookies
Chocolate
chip
Peanut
butter
All cookies
Chocolate
chip
Peanut
butter
All cookies
Chocolate
chip
Peanut
butter
Good work!
Use the tape diagram to solve.
well, a WHOLE is 1, which we can split in many fractions, say 5/5, 10/10 or 999/999 and so on.
we know 1/5 of the jar is chocolate chip, and there's the rest, well, the Whole jar in 5ths have to be 5/5, if we take away 1/5 from 5/5, the "rest" is 5/5 - 1/5 = 4/5.
now, we also know that 1/2 of the "rest" is peanut butter, or namely that 1/2 of 4/5 is peanut butter, how much will that be? let's divide 4/5 by 2
[tex]\cfrac{4}{5}\div 2\implies \cfrac{4}{5}\div \cfrac{2}{1}\implies \cfrac{4}{5}\cdot \cfrac{1}{2}\implies \cfrac{4}{10}\implies \cfrac{2}{5}[/tex]
Stan's favorite cereal provides 20% of the Vitamin A and 30% of the Vitamin C he needs daily. How many servings of this cereal must he consume before he gets the recommended daily requirement of both vitamins?
Answer:
Step-by-step explanation:
100 %/ 20 % = 5 servings
100 %/ 30 % = 3⅓ servings
He must consume 5 servings to get 100% of Vitamin A
In those servings he will consume 150% of Vitamin C
5x + 3y = 41
2x + 3y = 20
show me step by steps how to do this
Answer:
x=7 and y=2
Step-by-step explanation:
In this case, you want to use elimination
1. multiply the second equation by -1
5x + 3y = 41
2x + 3y = 20
turns into
5x + 3y = 41
-2x + 3y = 20
2. combine the equations
3x=21
3. solve for x
3x=21
3x/3=21/3
x=7
4. Now you want to plug x back into the original equation
5x+3y=41
turns into
5(7)+3y=41
5. Then solve for y
35+3y=41
35+3y-35=41-35
3y=6
3y/3=6/3
y=2
6. results
x=7 and y=2
Learn with an example Tony built a new fence in the yard and decided to paint it red. He started painting it at 12:00 P.M. and finally finished at 1:00 P.M. How long did it take to paint the new fence? hours minutes
Answer:
1 hour
Step-by-step explanation:
if he started at 12 pm, then in 1 hour he would finnish