Answers
Answer:
(D) 56
Step-by-step explanation:
x/y = 2/7
x = 2/7 y
S = x + y
S = 2/7 y + y
S = 9/7 y
y is a multiple of 7, so S is a multiple of 9.
So S cannot be 56.
Related Questions
Help ASAP!!!
Find the given angle, to the nearest degree.
Answers
Answer:
[tex]\boxed{\mathrm{x = 43.8 \ degrees}}[/tex]
Step-by-step explanation:
Let the angle be x
Tan x = [tex]\frac{opposite}{adjacent}[/tex]
Where opposite = 48, Adjacent = 50
Tan x = [tex]\frac{48}{50}[/tex]
Tan x = 0.96
x = [tex]Tan ^{-1}0.96[/tex]
x = 43.8 degrees
Answer:
[tex]\boxed{43.8 \°}[/tex]
Step-by-step explanation:
Use tangent since hypotenuse length is not given.
[tex]tan \theta = \frac{opposite}{adjacent}[/tex]
[tex]tan(x)=\frac{48}{50}[/tex]
[tex]x=tan^{-1}(\frac{48}{50} )[/tex]
[tex]x=43.8[/tex]
Please solve this problem in a statement reason setup.
Answers
Step-by-step explanation:
Statement: ∠O ≅ ∠O
Reason: Reflexive property
Statement: m∠OKW = 90° − m∠O
Reason: Complementary angles
Statement: m∠OJP = 90° − m∠O
Reason: Complementary angles
Statement: m∠OKW = m∠OJP
Reason: Substitution
Statement: ∠OKW ≅ ∠OJP
Reason: Definition of congruent angles
Statement: ΔOKW ~ ΔOJP
Reason: AA similarity
Show that between any two terminating decimals ,there is another terminating decimal
Answers
Answer:
1.5+1.7/2=1.6
Step-by-step explanation:
In 2012, entering freshmen at the UA have an average ACT score of 25.4 with a standard deviation of 2.1. 1. What is the probability a student has an ACT score more than 24.1
Answers
Answer:
P [ Z > 24,1 ] = 72,24 %
Step-by-step explanation:
P [ Z > 24,1 ] = 1 - P [ Z < 24,1 ]
P [ Z < 24,1 ] = ( Z - μ₀ ) / σ
P [ Z < 24,1 ] = ( 24,1 - 25,4) / 2,1
P [ Z < 24,1 ] = - 1,3/ 2,1
P [ Z < 24,1 ] = - 0,6190 ≈ - 0,62
We look in z-table and find for z(score) -0,6190
P [ Z < 24,1 ] = 0,27763
Then
P [ Z > 24,1 ] = 1 - 0,27763
P [ Z > 24,1 ] = 0,72237 ⇒ or P [ Z > 24,1 ] = 72,24 %
In △ABC, GF=17 in. What is the length of CF¯¯¯¯¯? Enter your answer in the box.
Answers
Answer:
51 inches
Step-by-step explanation:
The centroid G divides each median into the ratio 2:1, so GF is 1/3 of CF. That is, ...
CF = 3(GF) = 3(17 in)
CF = 51 in
which of these shows the result of using the first equation to substitute for y in the second equation, then combining like terms. y=2x 2x+3y=16 a. 4x=16 b. 5y=16 c. 8x=16 d. 5x=16
Answers
Answer:
C. [tex]\Rightarrow \bold{8x = 16}[/tex]
Step-by-step explanation:
Given the two equations:
[tex]y=2x ........ (1)\\ 2x+3y=16.......(2)[/tex]
To find:
The correct option when value of y is substituted to 2nd equation using the 1st equation.
Solution:
First of all, let us learn about the substitution method.
Substitution method is the method to provide solutions to two variables when we have two equations and two variables.
In substitution method, we find the value of one variable in terms of the other variable and put this value in the other equation.
Now, the other equation becomes only single variable and then we solve for the variable's value.
Here, we have two equations and value of one varible is:
[tex]y=2x[/tex]
Let us put value of y in 2nd equation:
[tex]2x+3y=16\\\Rightarrow 2x + 3(2x) = 16\\\Rightarrow 2x + 6x = 16\\\Rightarrow \bold{8x=16}[/tex]
So, the correct answer is option C. [tex]\Rightarrow \bold{8x = 16}[/tex]
Answer: 8x=16
Step-by-step explanation:a pex
What is the distance betweem points W and X to the nearest hundredth?
Answers
Answer:
16.97 Units
Step-by-step explanation:
From the graph
Point W is located at (-6,4)
Point X is located at (6,-8)
To determine the distance between points W and X, we use the distance formula.
[tex]\text{Distance Formula}=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
[tex](x_1,y_1)=(-6,4)\\(x_2,y_2)=(6,-8)[/tex]
So,
[tex]WX=\sqrt{(6-(-6))^2+(-8-4)^2} \\=\sqrt{(6+6)^2+(-12)^2}\\=\sqrt{(12)^2+(-12)^2}\\=\sqrt{288}\\=16.97$ units (correct to the nearest hundredth)[/tex]
2{ 2[24 + 4(23 - 14) - 25]}
Answers
Answer:
140
Step-by-step explanation:
2{ 2[24 + 4(9)-25]}
2{ 2[24 + 36-25]}
2{ 2[35]}
2(70)
140
The answer choices below represent different hypothesis tests. Which of the choices are one-tailed tests? Select all correct answers. Select all that apply: H0:p=0.46, Ha:p<0.46 H0:p=0.34, Ha:p≠0.34 H0:p=0.63, Ha:p≠0.63 H0:p=0.35, Ha:p≠0.35 H0:p=0.39, Ha:p<0.39
Answers
Answer:
H0:p=0.46, Ha:p<0.46
H0:p=0.39, Ha:p<0.39
Step-by-step explanation:
A one tailed test occurs in such a way that the value/results gotten is one sided and can either be lesser or greater than the particular given value but cannot be both.
Thus, in this case a one sided test includes
H0:p=0.46, Ha:p<0.46
H0:p=0.39, Ha:p<0.39
Given: circle k(O), O∈ AB ,CD ⊥ AB Prove: △ADC∼△ACB
HELP ASAP 20 POINTS AND BRAINLIEST!!!
Answers
Answer:
Step-by-step explanation:
Given : In a circle O,
AB is a diameter and CD⊥AB,
To Prove :
ΔADC ~ ΔACB
Solution :
In ΔADC and ΔACB,
m∠ADC = 90° [Given]
m∠ACB = 90° [Angle subtended by the diameter = 90°]
m∠ADC ≅ m∠ACB ≅ 90°
∠A ≅ ∠A [Reflexive property]
Therefore, ΔADC ~ ΔACB [By AA postulate of similarity]
Your parents are giving you $210 a month for four years while you are in college. At an interest rate of .49 percent per month, what are these payments worth to you when you first start college?
Answers
Answer:
These payments will be worth $11,332.94.
Step-by-step explanation:
We can calculate this as an annuity but with monthly periods and monthly interest rates.
Then, we have:
C = cash flow per period = $210
n = number of payments = 48
i = interest rate = 0.49% = 0.0049
Then, we can calculate the future value of this stream of deposits as:
[tex]FV=C\left[\dfrac{(1+i)^n-1}{i}\right]\\\\\\FV=210\left[\dfrac{(1.0049)^{48}-1}{0.0049}\right]=210\left[\dfrac{1.2644-1}{0.0049}\right]=210\left[\dfrac{0.2644}{0.0049}\right]\\\\\\FV=210\cdot 53.966\\\\\\FV=11332.94[/tex]
Please help Each statement describes a transformation of the graph of f(x) = x. Which statement correctly describes the graph of g(x) if g(x) = f(x) - 3
Answers
Answer:
C
Step-by-step explanation:
It is the graph of f(x) translated 3 units down. Think about in numerical terms,
if y = 5 y-1 = 5- 1 = 4, so that's what is happening with all numbers on the y axis. You have y = f(x) and you do y-3 = f(x)-3, so, all "y" points are translated 3 units down
Describe appropriate domain and range for the function (blood alcohol con tent, reflex time)for a single person
Answers
Answer:
If we have a function f(x) = y.
the set of possible values of x is called the domain
the set of possible values of y is called the range.
In this case, we have:
Blood alcohol content vs Reflex time,
The possible values of alcohol in blood content depend on the particular person, but we can have a minimum of 0.0 (no alcohol in blood) and a maximum of .51 (for a 90 lb person) because at this range the person enters the risk of death.
So the domain is: D = [0.0, 0.51]
But, we actually can have higher values of alcohol in blood, so we actually can use a domain:
D = [0.0, 1.0]
For the range, we need to see at the possible values of the reflex time.
And we know that the human reflex time is in between 100ms and 500ms
So our range can be:
R = [100ms, 500ms]
select the fraction equivalent of 0.06. reduce to the lowest terms
Answers
Answer: 3/50
Step-by-step explanation:
0.06 = 6/100 , 100 would be the denominator because we have two figures after the decimal point. Each figures can also be represented by 10,
Again,
0.06 = 6 × 10-²
Now 0.06 = 6/100
= 3/50.
Therefore, the fractional form = 3/50 in its lowest term.
Helpppp..................
Answers
Answer:
0.11
Step-by-step explanation:
Hello,
[tex]P(A|B)=\dfrac{P(A\cap B)}{P(B)} \ \ \text{ so ...}\\\\P(A\cap B)=P(A|B)\cdot {P(B)= 0.55 * 0.2 = 0.11\\[/tex]
Hope this helps.
Do not hesitate if you need further explanation.
Thank you
Suppose an object moves along the y-axis (marked in feet) so that its position at time x (in seconds) is given by the f(x) = 96x -16x^2, find the following.
A) The instantaneous velocity function v = f (x).
B) The velocity when x = 0 and x = 4 seconds.
C) The time(s) when v = 0
Answers
Answer:
A) v = f(x) = 96 -32x
B)the velocity when x = 0
V = 96 ft/s
The velocity when x =4
V = -32 ft/s
C). Time when v= 0
3 seconds = x
Step-by-step explanation:
f(x) = 96x -16x^2
The above equation represents the position of the object at x time along the x axis.
The velocity will be determined by differentiating the equation with respect with x
f(x) = 96x -16x^2,
D f(x)/Dx= 96 -2(16x)
D f(x)/Dx= 96 -32x
v = f(x) = 96 -32x
The velocity when x = 0
v = f(x) = 96 -32x
V = f(0) = 96-32(0)
V = 96 ft/s
The velocity when x = 4
v = f(x) = 96 -32x
V = f(4) = 96-32(4)
V = 96 - 128
V = -32 ft/s
Time when v= 0
v = f(x) = 96 -32x
0= 96 -32x
-96= -32x
-96/-32=x
3 seconds = x
given that H0: μ=40 against H1: μ < 40 if mice have an average life of 38 months with a standard deviation of 5.8 months. If the distribution of life spans is approximately normal, how large a sample is required in order that the probability of committing a type II error be 0.1 when the true mean is 35.9 months? Assume that level of significance 0.05.
Answers
Answer: sample required n = 18
Step-by-step explanation:
Given that the value under under null hypothesis is 40 while the value under the alternative is less than 40, specifically 35.9
∴ H₀ : u = 40
H₁ : u = 35.9
therefore β = ( 35.9 - 40 ) = -4.1
The level of significance ∝ = 0.05
Probability of committing type 11 error P = 0.1
standard deviation α = 5.8
Therefore our z-vales (z table)
Z₀.₅ = 1.645
Z₀.₁ = 1.282
NOW let n be sample size
n = {( Z₀.₅ + Z₀.₁ )² × α²} / β²
n = {( 1.645 + 1.282 )² × 5.8²} / (- 4.1)²
n = 17.14485
Since we are talking about sample size; it has to be a whole number
therefore
sample required n = 18
You bet $50 on 00 in a game of roulette. If the wheel spins 00, you have a net win of $1,750, otherwise you lose the $50. A standard roulette wheel has 38 slots numbered 00, 0, 1, 2, ... , 36. What is the expected profit for one spin of the roulette wheel with this bet?
Answers
Answer:
-$2.63
Step-by-step explanation:
Calculation for the expected profit for one spin of the roulette wheel with this bet
Based on the information given you bet $50 on 00 while the standard roulette has 38 possible outcomes which means that the probability or likelihood of getting 00 will be 1/38.
Therefore when we get an 00, we would get the amount of $1,750 with a probability of 1/38 and in a situation where were we get something other than 00 this means we would lose $50 with a probability of 37/38.
Now let find the Expected profit using this formula
Expected profit = sum(probability*value) -sum(probability*value)
Let plug in the formula
Expected profit =($1,750 * 1/38) - ($50 * 37/38)
Expected profit=($1,750*0.026315)-($50×0.973684)
Expected profit= 46.05 - 48.68
Expected profit = - $2.63
Therefore the expected profit for one spin of the roulette wheel with this bet will be -$2.63
Hi can u help me plz
Answers
Part A: Factor 3x2c2 + 5xc2 − 2c2. Show your work. (4 points) Part B: Factor x2 + 6x + 9. Show your work. (3 points) Part C: Factor x2 − 9. Show your work. (3 points) (10 points)
Answers
Answer:
[tex]\boxed{\mathrm{view \: explanation}}[/tex]
Step-by-step explanation:
A) 3x²c² + 5xc² - 2c²
Factor c² from all terms in the expression.
c²(3x² + 5x - 2)
Factor 3x² + 5x - 2
c²(3x-1)(x+2)
B) x² + 6x + 9
x² + 3x + 3x + 9
Factor common terms.
x(x+3)+3(x+3)
Take x+3 common.
(x+3)(x+3)
C) x² - 9
x² -3²
Apply formula : a² - b² = (a+b)(a-b)
(x+3)(x-3)
Answer:
A) [tex]c^2(3x-1)(x+2)[/tex]
B) [tex](x+3)(x+3)[/tex]
C) [tex](x+3)(x-3)[/tex]
Step-by-step explanation:
Part A:
[tex]3x^2c^2+5xc^2-2c^2[/tex]
Taking [tex]c^2[/tex] common
[tex]c^2(3x^2+5x-2)[/tex]
Using mid term break formula
[tex]c^2 (3x^2+6x-x-2)[/tex]
[tex]c^2[3x(x+2)-1(x+2)][/tex]
[tex]c^2(3x-1)(x+2)[/tex]
Part B:
[tex]x^2 + 6x + 9.[/tex]
[tex](x)^2+2(x)(3)+(3)^2[/tex]
[tex](x+3)^2[/tex]
[tex](x+3)(x+3)[/tex]
Part C:
[tex]x^2-9[/tex]
[tex](x)^2-(3)^2[/tex]
[tex](x+3)(x-3)[/tex]
Suppose Miss Roxanne Davenport is 25 years old right now and puts away $1,800 per quarter in an account that returns 6% interest. a.) How much will be in the account when she turns 65? b.)What is her total contribution to the account?
Answers
Answer:
a. Total amount after 65 years = $1179415.39
b. The total contribution to the account = $288000
Step-by-step explanation:
Given annuity amount = $1800
Total number of years for contribution = 65 – 25 = 40 years
Interest rate = 6%
a. Total amount after 65 years = Annuity[((1+r)^n -1) / r]
Total amount after 65 years = 1800×((1+.06/4)^(4 × 40) - 1)/(.06/4)
Total amount after 65 years = $1179415.39
b. The total contribution to the account =1800 × 4 Quarter × 40 Years
The total contribution to the account = $288000
A dollar bill is 0.0043 inches thick. How many yards high
is a
pile of a million $1 bills
Answers
Hey there! I'm happy to help!
First, let's multiply this thickness by one million to see how many inches this pile is.
0.0043*×1,000,000=4,300 inches
We know that there are 12 inches in a foot and 3 feet in a yard, so there must be 36 inches in a yard.
So, we divide our 4,300 inches by 36 to find how many yards high this pile is.
4300÷36=119 4/9
Therefore, a pile of a million $1 bills is 119 4/9 yards high.
Have a wonderful day! :D
There are three times as many fiction books as non-fiction books in a library. 120 fiction and 24 non-fiction books are loaned out. There are now twice as many non-fiction books as fiction books. How many books were in the library?
How do I work this out step by step?
Answers
Answer:
672
Step-by-step explanation:
If we call the number of non-fiction books as x, the number of fiction books would be 3x. Therefore: we can write the following equation:
3x - 120 = 2(x - 24) ← the 3x - 120 and x - 24 represents the new number of books
3x - 120 = 2x - 48
x - 120 = 48
x = 168 which means 3x = 3 * 168 = 504, therefore the total number of books is 168 + 504 = 672.
verify sin(360 - etheta = -sin etheta
Answers
Answer:
see explanation
Step-by-step explanation:
Using the subtraction identity for sine
sin(a + b) = sinacosb - cosasinb
Given
sin(360 - Θ)°
= sin360°cosΘ° - cos360°sinΘ°
= (0 × cosΘ ) - (1 × sinΘ)
= 0 - sinΘ
= - sinΘ ← as required
PLEASE HELP!!! Find the area of the shaded polygon:
Answers
Answer:
147
Step-by-step explanation:
- Find the circumference of the circle with the given radius or diameter. Use 3.14.
diameter = 10 cm
A. 15.7 cm
B. 314 cm
C. 78.5 cm
D. 31.4 cm
Answers
Answer:
C = 31.4 cm
Step-by-step explanation:
C = pi * d where d is the diameter
C = 3.14 * 10
C = 31.4 cm
Circumference = pi x diameter
= 3.14 x 10
= 31.4 cm
The answer is D. 31.4 cm.
An open box is made from a 10cm by 20cm Piece of Tin by cutting a square from each corner and folding the edges. The area of the resulting base is 96 cm2. What is the length of the sides of the squares?
Answers
Answer:
2 cm
Step-by-step explanation:
If x is the length of the sides of the squares, then the height of the box is also x. The length and width of the base are 10−2x and 20−2x. The area of the base is the length times the width.
96 = (10 − 2x) (20 − 2x)
96 = 200 − 20x − 40x + 4x²
0 = 4x² − 60x + 104
0 = x² − 15x + 26
0 = (x − 2) (x − 13)
x = 2 or 13
Since x < 5, x = 2.
So the length of the sides of the squares is 2 cm.
If x + 4 = 12, what is the value of x?
Answers
Answer:
x = 8
Step-by-step explanation:
x + 4 = 12
x=12-4
x=8
Answer:
8
Step-by-step explanation:
x+4=12, so 12-4=x (if you use an the inverse operation of addition, subtraction.)
12-4=x, so all you have to do is subtract and, there you have it, 8. It makes sense, 8+4=12. :)
Which One Doesn't Belong? Why?
There are multiple reasons that each one of these 4 could be different than the others.
I just need an answer from one of these 4.
Answers
The measure of one of the small angles of a right triangle is 15 less than twice the measure of the other small angle. Find the measure of both angles.
Answers
Answer:
A= 35°
b= 55°
Step-by-step explanation:
Let's take the small angles of the right angle triangle to be and b
a+b +90= 180....(sum of angles in a right angle triangle)
The measure of one of the small angles of a right triangle is 15 less than twice the measure of the other small angle
2a-15= b
a+2a -15 +90= 180
3a = 180-75
3a= 105
a= 105/3
a= 35°
a+b +90= 180.
35+b+90= 180
b = 180-90-35
b = 55°
Answer:
x = 35°; y = 55°
Step-by-step explanation:
Let x = one of the angles
and y = the other angle. Then
2x = twice the measure of x and
2x - 15 = 15 less than twice the measure of x
You have two conditions
(1) y = 2x - 15
(2) x+ y = 90
Calculations:
[tex]\begin{array}{lrcll}(1) & y & = & 2x - 15\\(2)& x + y & =&90\\(3)& x + 2x - 15 & =&90&\text{Substituted (1) into (2)}\\& 3x- 15 & = & 90&\text{Simplified}\\&3x & = & 105&\text{Added 15 to each side}\\ (4)& x & = & \mathbf{35}&\text{Divided each side by 3}\\& y & = & 2(35) - 15&\text{Substituted (4) into (1)}\\& & = & 70 - 15&\text{Simplified}\\&&=&\mathbf{55}&\end{array}\\[/tex]
x = 35°; y = 55°
Check:
[tex]\begin{array}{ccc}55 = 2(35) - 15 & \qquad & 35 + 55 = 90\\55 = 70 - 15 & \qquad & 90 = 90\\55 = 55 && \\\end{array}[/tex]
It checks.