Answer:
Greater than 4
2 x + 3 y = 11 x − 3 y = 1 What is the solution ( x , y ) to the given system of equations?
Answer:
(4, 1 )
Step-by-step explanation:
Given the 2 equations
2x + 3y = 11 → (1)
x - 3y = 1 → (2)
Adding (1) and (2) term by term will eliminate the term in y
3x = 12 ( divide both sides by 3 )
x = 4
Substitute x = 4 into either of the 2 equations and evaluate for y
Substituting into (1)
2(4) + 3y = 11
8 + 3y = 11 ( subtract 8 from both sides )
3y = 3 ( divide both sides by 3 )
y = 1
Solution is (4, 1 )
Find the area of the surface generated by revolving x equals t plus StartRoot 2 EndRoot, y equals StartFraction t squared Over 2 EndFraction plus StartRoot 2 EndRoot t plus 3 , negative StartRoot 2 EndRoot less than or equals t less than or equals StartRoot 2 EndRoot about the y dash axis. The surface area obtained by revolving the given curve around the y dash axis is
Given the original number n. Multiply the number by 9. Add 99. Divide this sum by 9. Subtract the original number, n, from the quotient.
Answer:
11
Step-by-step explanation:
Hello,
Given the original number n.
[tex]\large \boxed{n}[/tex]
Multiply the number by 9.
[tex]\large \boxed{9n}[/tex]
Add 99.
[tex]\large \boxed{9n+99}[/tex]
Divide this sum by 9.
[tex]\large \boxed{\dfrac{9n+99}{9}=n+11}[/tex]
Subtract the original number, n, from the quotient.
[tex]\large \boxed{n+11-n=11}[/tex]
Thank you.
Solve 64^x = 16^(x−1). (1 point) Select one: a. x = −2 b. x = −1 c. x = negative 1 over 4 d. x = negative 1 over 3
Answer:
a. x = -2
Step-by-step explanation:
64ˣ = 16⁽ˣ⁻¹)
64 = 4³
16 = 4²
4³⁽ˣ⁾ = 4²⁽ˣ⁻¹)
4³ˣ = 4²ˣ⁻²
3x = 2x - 2
x = -2
Answer:
[tex]\huge \boxed{x=-2}[/tex]
Step-by-step explanation:
64^x = 16^(x-1)
Rewrite the bases with base of 4.
(4^3)^x = (4^2)^(x-1)
Multiply exponents.
4^(3x) = 4^(2(x-1))
Cancel same bases.
3x = 2(x-1)
Expand brackets.
3x = 2x - 2
Subtract 2x from both sides.
x = -2
Will mark brainliest for fastest answer and right
Answer:
19
Step-by-step explanation:
10 + 9 = 19. If you look at how many students are above the "30 mark", you will count 10 on the first bar and 9 on the second.
68. What property of real numbers would simplify the following expression: 4+7(x-1) ?
Answer:
7x - 3
hoped i helped
The final expression after applying the distributive property is 7x-3
What Is Distributive Property?According to this property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.
Given here: The expression as 4+7(x-1)
The distributive property tells us how to solve expressions in the form of a(b + c).
Now applying distributive property and solving for like terms we get :
4+7(x-1) =4+7x-7
=7x-3
Thus the distributive property rule of real numbers is used to simplify the given expression.
Hence, The final expression after applying the distributive property is 7x-3
Learn more about the distributive property here:
https://brainly.com/question/5637942
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Solve 3х - х + 2 = 12.
a. -5
b. 4
c. 7
d. 5
Answer:
3x-x+2=12
2x+2=12
2x = 10
x=5
Answer:
d
Step-by-step explanation:
Given
3x - x + 2 = 12, that is
2x + 2 = 12 ( subtract 2 from both sides )
2x = 10 ( divide both sides by 2 )
x = 5
Given that 2^x = 7, find the value of 4^{x-1}.
Answer:
[tex] {4}^{x - 1} = \frac{49}{4} [/tex]
Step-by-step explanation:
My work is in the attachment but I essentially used a hefty bit of Algebraic manipulation to turn 2^x into 4^(x-1) and then isolating that bit.
Comment if you have any questions.
Answer:
49/4
Step-by-step explanation:
4^x-1 = (2^x)^2/4 = 7^2/4 = 49/4
Enter the number 99.4177 rounded to the nearest hundredth (two decimal places)
Answer: The number 99.4177 rounded to the nearest hundredth is 99.42.
Step-by-step explanation:
Here's how I got my answer:
Since you need to round to the nearest hundredth, then round to the first two decimal places. So if the number is 5 or greater, then round up. If the number is 4 or lesser, then do not round up.
In this scenario:
99.4177
Round the 1 in the hundredths place up to 2, because 7 is on the greater end. Since they are just asking you for the hundredths place, then do not round anything else.
Hence, your final answer is 99.42.
what number goes on top
I'm not sure what you're really talking about.
But I think you are talking about fractions.
In fractions there are two places
The number that goes on the top is numerator.
What is the solution to X-7 less than or equal to -4
Answer:
x ≤ 3
we have to transpose -7 from left to right
GRIDDED RESPONSE Mark got 18 out of 25
questions correct on his science test. What percent
of the questions did he get correct?
he got 0.08 percent questions correct
Answer:
72%
Step-by-step explanation:
A percentage is a number out of 100. For example, 32/100 is 32%. What you want to do with percentages is multiply the denominator of a fraction so it becomes 100 and multiply that same number to the numerator. Sort of like a ratio!
If Mark got 18/25, we can multiply 25 by 4 to get 100 as the denominator.
Since you multiplied the denominator by 4, you have to multiply the numerator by 4 as well.
18 times 4= 72. So the numerator is 72 and the denominator is 100. The fraction is 72/100, which is 72% since it is out of 100.
List the following from least to greatest. |71|, |3|, |94|, |-46|
Answer:
Hey there!
From least to greatest, we have |3|, |-46|, |71|, and |94|
Let me know if this helps :)
My question got deleted so I'll post these into two separate
posts 100 POINTS!
Convert 1 million seconds to years. (Round to 3 decimal places.)
If your teacher is 50 years old, what is their age in seconds?
Convert 46 inches to miles (there are 12 inches in one foot). Round 6 decimal places.
Answer:
see below
Step-by-step explanation:
1 million
1,000,000 seconds * 1 hour/ 3600 seconds * 1 day/ 24 hours * 1 year / 365 days
.031709792 years
Rounding to 3 decimal places
.032 years
50 years * 365 days/ 1 year * 24 hours/ 1 day * 3600 second / 1 hour
1577000000 seconds
46 inches * 1 ft/ 12 inches * 1 mile/5280 ft
0.000726 miles
tyler brought 7/12 pound of trail mix on a camping trip. he ate 4/12 pound of the trail mix. how much trail mix is left
Answer:
Tyler had 7/12 pound of trail mix
He ate 4/12 of it i.e
7/12-4/12=7-4/12
3/12=1/4
He has 1/4 of trial mix left
The ratio of adults to students on a class field trip is 2 to 5. If there are 12 more students than adults, which proportion and solution represent this situation?
Answer:
X/y = 2/5
Y= x+12
Where y = students
X= adults
Number of adults= 8
Number of students= 20
Step-by-step explanation:
The ratio of adults to students on a class field trip is 2 to 5. If there are 12 more students than adults.
Let adult be x
Let student be y
X/y = 2/5
5x= 2y.... equation one
Y= x+12..... equation two
Substituting equation two into equation one
5x= 2(x+12).
5x = 2x +24
3x= 24.
X= 8
Y= x+12
Y= 8+12
Y= 20
Number of adults= 8
Number of students= 20
Solve for non extraneous solution and show work/check please help i need help asap! Please no fake answers ___ 1√x+2+2=6
Answer:
x=14
Step-by-step explanation:
1[tex]\sqrt{x+2}[/tex] +2 = 6 --------------- put nums on 1 side
1[tex]\sqrt{x+2}[/tex] = 4 -------------------by the way, 1
[tex]\sqrt{x+2}[/tex] =4 ------------- square both sides
x+2 = 16 --------------- subtract 2 from both sides
x = 14
If 3a +5b =10 and 5a +3b =30 what is the average of a and b?
Hello, please consider the following.
[tex]3a+5b + 5a + 3b = 8(a+b)=10+30=40\\\\a+b=\dfrac{40}{8}=5[/tex]
And the average is
[tex]\dfrac{a+b}{2}\boxed{=\dfrac{5}{2}}[/tex]
Thank you.
A plan traveled for a total of 2,773 miles over the course of 8 hours. Heading south, the plan traveled at an average speed of 344 miles per hour and heading west. It traveled at an average speed of 351 miles per hour. For how many hours was the plane heading south?
Answer:
5 hours
Step-by-step explanation:
Let s and w represent hours spent traveling south and west, respectively. The problem statement tells us ...
s + w = 8 . . . . . . total trip time
344s + 351w = 2773 . . . . total mileage (using d = s·t)
By Cramer's rule, we can find the value of s as ...
s = (1(2773) -351(8))/(1(344) -351(1)) = -35/-7 = 5
The plane was heading south for 5 hours.
_____
Comment on Cramer's rule
For the equations ...
ax +by = c
dx +ey = f
The solution for x can be found to be ...
x = (bf-ec)/(bd-ea)
Similarly, the solution for y is ...
y = (cd-fa)/(bd-ea)
According to a survey, 10% of Americans are afraid to fly. Suppose 1,100 Americans are sampled. What is the probability percentage that 121 or more Americans in the survey are afraid to fly
Answer:
0.137.
Step-by-step explanation:
Given that
Sample size = 1100
Afraid to fly = 10 %
Mean = n x p
Mean = 1100 x 0.1 = 110
Variance = n p q
Variance = 1100 x 0.1 x 0.9 = 99
Standard deviation = [tex]\sqrt{n\times p\times q}[/tex]
S.D.=[tex]\sqrt{1100\times 0.1\times 0.9}[/tex]
S.D.=9.94
By using Normal distribution
[tex]Z=\dfrac{X-\mu}{\sigma}[/tex]
[tex]Z=\dfrac{121-110}{9.94}[/tex]
Z=1.16
[tex]P(X>121)=P(Z>1.16)=1-0.8643\\P(X>121)=0.137\\[/tex]
Thus the answer will be 0.137.
Convert the following angle to decimal degrees.
a=274° 33' 23"
Answer:
274.556 degrees to the nearest thousandth.
Step-by-step explanation:
33 ' = 33/60 = 0.55 degrees.
23" = 23/60 minutes
= 23/60 / 60 = 0.00639 degrees
So the answer is 274 + 0.55 + 0.00639 degrees
=
274.55639 degrees.
Assuming that workers' salaries in your company are uniformly distributed between $15,000 and $40,000 per year, find the probability that a randomly chosen worker earns an annual salary between $20,000 and $35,000.
Answer:
The probability is [tex]P(\$20,000 < X < \$35,000) = 0.6[/tex]
Step-by-step explanation:
From the question we are told that
Workers' salaries in your company are uniformly distributed between $15,000 and $40,000 per year
Generally the probability that a randomly chosen worker earns an annual salary between $20,000 and $35,000 is mathematically represented as
[tex]P(\$20,000 < X \$35,000) = \frac{ 35000 - 20000}{ 40000 - 150000}[/tex]
=> [tex]P(\$20,000 < X < \$35,000) = 0.6[/tex]
Using the uniform distribution, it is found that there is a 0.6 = 60% probability that a randomly chosen worker earns an annual salary between $20,000 and $35,000.
An uniform distribution has two bounds, a and b.
The probability of finding a value between c and d is:
[tex]P(c \leq X \leq d) = \frac{d - c}{b - a}[/tex]
In this problem, uniformly distributed between $15,000 and $40,000, hence [tex]a = 15, b = 40[/tex].
The desired probability is:
[tex]P(20 \leq X \leq 35) = \frac{35 - 20}{40 - 15} = 0.6[/tex]
0.6 = 60% probability that a randomly chosen worker earns an annual salary between $20,000 and $35,000.
A similar problem is given at https://brainly.com/question/13547683
The stem-and-leaf plot below displays the ages of 30 attorneys at a small law firm.
Stems Attorneys
4 99
5 00112589
6 1234458
7 1233458
8 0137
9 12
What is the age of the oldest attorney? What is the age of the youngest attorney?
A. The oldest attorney is 102 years old. The youngest attorney is 31 years old.
B. The oldest attorney is 91 years old. The youngest attorney is 48 years old.
C. The oldest attorney is 82 years old. The youngest attorney is 59 years old.
D. The oldest attorney is 92 years old. The youngest attorney is 49 years old.
Answer:
D. The oldest is 92 youngest 49
Step-by-step explanation:
we can get the answer by pairing each of the values on the left hand side that is these values 4 5 6 7 9 with values on the right.
the first age from the top row is 49 the second is 49
from the second row it is 50 50 51 51 52 5 59
from the 3rd row 61 62 63 64 64 65 6
from the forth row t s 71 72 73 73 74 75 7
from the fifth row it is 80 81 83 87
from the sxth row it is 91 92.
each of the numbers have just written out represents age. the oldest age there is 92 whle the youngest s 49. It is simply each number under attorney paired wth stem to make a number.
I added an attachment with the pairing
Suppose you are going to graph the data in the table below. What data should be represented on each axis, and what would be the appropriate increments? (2 points) Reporting periods Sales Jan.–Mar., 2010 $100,000 Apr.–Jun., 2010 $55,000 Jul.–Sep., 2010 $45,000 Oct.–Dec., 2010 $110,000 Jan.–Mar., 2011 $330,000 Apr.–Jun., 2011 $800,000 Jul.–Sep., 2011 $242,000 Oct.–Dec., 2011 $150,000
Answer:
Is b
Step-by-step explanation:
In the student council election, Davina received 50 votes, Binh received 40 votes and Eden received 80 votes. What is the ratio of Binh’s votes to Davina’s votes in simplest form?
Answer:
4:5
Step-by-step explanation:
Davina received 50 votes
Binh reveived 40 votes
It asked for ratio of Binh’s votes to Davina’s
so the ratio is first Binh's 40 to Davina's 50 that's 40 to 50
It want it in simplest form so you find the greatest common factor of 40 and 50 which is 10.
40/10 and 50/10 is 4 to 5
So the answer is 4:5(The ":" means "to")
The ratio of Binh’s votes to Davina’s votes is 4:5
What is ratio?The comparison of two numbers or quantities by division is known as the ratio.
Given that, In the student council election, Davina received 50 votes, Binh received 40 votes and Eden received 80 votes.
Required ratio = Binh’s votes \ Davina’s votes
= 40/50
= 4/5
Hence, The ratio of Binh’s votes to Davina’s votes is 4:5
For more references on ratios, click;
https://brainly.com/question/13419413
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Is a temperature of 35 degrees Fahrenheit as cold as a temperature of -35 degrees Fahrenheit?
Answer:
Step-by-step explanation:
Definitely not. -35 degrees is far below freezing (+32 degrees). On the other hand, +35 degrees is very warm indeed.
No, the temperature of 35 degrees Fahrenheit is not as cold as a temperature of -35 degrees Fahrenheit.
We have temperature in degrees Fahrenheit.
We have to investigate - " Is a temperature of 35 degrees Fahrenheit as cold as a temperature of -35 degrees Fahrenheit ".
What is the formula to convert Fahrenheit to degrees Celsius ?The formula is -
(°F − 32) × 5/9 = °C
According to the question -
Assume that -
A = 35°F = 1667 °C
B = -35°F = -37.2222 °C
The temperature 35°F represents very very high temperature (hot) whereas the temperature -35°F represents very very low temperature (cold).
Hence, No, the temperature of 35 degrees Fahrenheit is not as cold as a temperature of -35 degrees Fahrenheit.
To solve more questions on Temperature scale conversions, visit the link below-
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QUSTUN 5
1 2 3 4 5 6
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Dwayne is trying to find the fraction represented by the repeating decimal 0.5. He completes the three
steps shown:
1) Let x = 0.5
2) 10x = 5.5
3)
10x =
5.5
-X =
9x = 5
0.5
What is the purpose of Step 3?
It removes the repeating part of the decimal from the equation.
o It shows that 0.5 is an irrational number.
It puts the fraction in lowest terms.
It shows that 0.5 is a terminating decimal.
Answer:
It removes the repeating part of the decimal from the equation.
Step-by-step explanation:
Described here is the process of converting the repeating decimal fraction into fraction in the form of p/q
1) --------------
x = 0.5555552) --------------
10x = 5.5555553) --------------
10 x - x = 5.555555 - 0.5555559x = 5x = 5/9So the purpose of step 3 here is to remove the repeating part of the decimal from the equation
Correct option is the first one.
((4-x)/5)+((x+2)/3)=6 Please Help Soon
Answer: x = 34
Step-by-step explanation:
⁴ ⁻ˣ/₅ + ˣ + 2/₃ = 6
Now resolve into fraction and convert to a linear equation
4 - x /₅ + x + 2/₃ = 6
3( 4 -x ) + 5( x + 2 )/15 = 6
3( 4 - x ) + 5( x + 2 ) = 6 x 15
12 - 3x + 5x + 10 = 90
2x + 22 = 90
2x = 90 - 22
2x = 68
x = 34
Two angles that have the same initial and terminal sides are ---Select--- .
They are called coterminal angles.
Answer:
It's coterminal
Step-by-step explanation:
Same initial
The sales tax in your city is 8.8% an item costs $63 before tax how much tax would you pay on that item
Answer:
68.67
Step-by-step explanation:
Round 8.8% to 9%.
multiply 63.00*0.09=68.67
Answer:
$5.54
Step-by-step explanation:
how i found it out
63×.088=5.54