Find the value of x. Round the answer to the nearest tenth, if needed.
A.
5.3
B.
15.9
C.
31.7
D.
48.1
Answers
Related Questions
Factor ab + bc + b2 + ac.
Answers
(b² + bc)+(ab + ac) =
b(b+ c)+a(b + с) =
(b + c)(b + a)
{So we can get the terms with the same variables together}
Factoring out the GCF from each term:
b(a + b) + c(a + b).
Then, factoring out a + b yields:
(a + b)(b + c).
I hope this helps!
Anybody have the proper answer to this
Answers
A = π * 5.5 * 5.5
A = 30.25 π
3025 / 100 π mm^2
.. r = d/2
.. r = (11 mm)/2 = (11/2) mm
The area is given by
.. A = π*r^2
.. = π(11/2 mm)^2
.. A = (121/4)π mm^2
13) Suppose a coffee cup has a diameter of 8 cm and a height of 9 cm. What is the volume of the cup? (to nearest whole number)
Answers
Radius is 4 cm (half of diameter)
Height = 9 cm
Volume of cylinder = pi x r^2 x h
The answer is 452.16 or can be rounded to 452 cubic cm
Answer:
[tex]452\ cm^{3}[/tex]
Step-by-step explanation:
we know that
the volume of a cylinder (coffe cup) is equal to
[tex]V=\pi r^{2} h[/tex]
we have
[tex]r=8/2=4\ cm[/tex] -----> the radius is half the diameter
[tex]h=9\ cm[/tex]
substitute
[tex]V=\pi (4^{2})(9)=452.4\ cm^{3}[/tex]
Round to the nearest whole number
[tex]452.4\ cm^{3}=452\ cm^{3}[/tex]
Find the 200th term, given the first term and the common difference. A1=34 and d=15
Answers
1. it is arithmetic progression, where a₁=34 and d=15. Formula for aₓ is aₓ=a₁+d(x-1);
2. a₂₀₀=34+15*(200-1)=3019.
answer: 3019.
P.S. if it is possible check the arithmetic part.
A employer, who started a new business, has promised his employees a minimum starting wage of $3, with an increase of $2 every 4 years. Sketch a graph of wage as a function of time for 16 years. Assume the wages take effect at the beginning of the year where the change is made. (HINT: use a step function to represent the function.)
Answers
To sketch the graph, use a step function to represent the wage as a function of time over 16 years. The minimum starting wage is $3, and it increases by $2 every 4 years.
Explanation:
To sketch a graph of wage as a function of time for 16 years, we can use a step function to represent the function.
The minimum starting wage is $3 and it increases by $2 every 4 years. For the first 4 years, the wage will be $3. At the start of the 5th year, the wage will increase to $5. This pattern continues, with the wage increasing by $2 every 4 years.So, the graph will have flat lines representing each 4-year interval, with a step up at the start of each interval.
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What is the point called where the perpendicular bisectors of the sides of a triangle intersect
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This is the center of the circle that goes through the three vertices of the triangle. This circle is known as the circumcircle. It is the smallest circle possible in which the circle encompasses the triangle and none of the triangle spills outside the circle.
Can someone please help me with 4?? I’m really struggling.
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m<DAC=y
m<BAC=3x
ABCD is a square so m<DAB = 90° because each angle in a square is a right angle so 3x+y=90° (1) ;
AC is a diagonal in the square so m<DAC=m<BAC so 3x=y (2);
Find x by substituting y to 3x from (2) into (1)
3x+3x=90
6x=90
x=90/6=15°
Answer x=15°
Can someone help me?
Answers
There are 4+3+2 = 9 people who scored exactly 85 points (look at column 2)
So there are 4+9 = 13 people who are from brazil or scored exactly 85 points. Subtract out those who fit both criteria. So we'll subtract off 3 people
13-3 = 10
There are 10 people who fit the criteria out of 19 total. The 19 is from adding up all the values in the table.
Divide the two values to get 10/19
Answer: 10/19
A ladder is leaning against the side of a building. The building and the ground form a right angle. How high on the building will the ladder touch if the ladder is 10 ft long and the base of the ladder is 6 ft from the base of the building?
Answers
The given question describes a right triangle with the hypotenuse as 10 ft and one of the legs as 6 ft.
We can make use of Pythagoras theorem to evaluate the length of the other side.
We know that by Pythagoras theorem, the square root of the sum of the squares of the legs of a right triangle gives the hypotenuse. Let the length of the required leg be x, then
[tex] x^2+6^2=10^2\\ \\ \Rightarrow x^2=100-36=64\\ \\ \Rightarrow x=\sqrt{64}=8. [/tex]
Therefore, the ladder reached 8 ft high on the building.
Ava bought a rectangular rug for her hallway. The rug is 2\3 yards wide and 2 3\4 yards long. What is the area of the rug as a mixed number in simplest form?
Answers
Answer:
1 5/6
Step-by-step explanation:
what do all similar circles have in common
a) congruent circumference value
b) congruent diameters
c) π
Answers
All the similar circles have π in common.
Thus, option (c) is correct.
When two circles are similar, it means they have the same shape but possibly different sizes.
However, the ratio of their corresponding lengths, including the circumference, remains constant.
Second, the ratio of the diameter will be constant but not congruent.
Third, the value of π is the universal constant whose value is 22/7 or 3.14.....
which is the same for every similar circle.
Thus, π has a common value.
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Write an expression to represent: four more than the product of three and a number xxx.
Answers
product of 3 and the x = 3x
four more = 3x + 4
Answer:
x-4
Step-by-step explanation:
this is a physics question that requires a lot of math. Hoping on of you genius could help me.
Q: You're driving down the highway late one night at 16m/s when a deer steps onto the road 44m in front of you. Your reaction time before stepping on the brakes is 0.50s , and the maximum deceleration of your car is 10m/s2 .
How much distance is between you and the deer. I solved this =23m
What is the maximum speed you could have and still not hit the deer?
The answer is 25 m/s. A lot of people had stated to use the quadratic formula. I just don't know where to begin.
Answers
If it takes 0.5 seconds before stepping on the breaks while going 16 m/s, then you travel 8 meters before anything happens. That means you are 44-8 = 36 meters away from the deer now.
v^2 = v_initial^2 + 2(acceleration)(distance)
0 = (16 m/s)^2 + 2(-10m/s^2)(distance)
256 m^2/s^2 / (2(10 m/s^2) = distance = 12.8 meters (13 meters after significant figures are taken into account).
The maximum speed would be:
0 = v_initial^2 + 2(-10m/s^2)(36m)
v_initial^2 = 720m^2/s^2
v_initial = 27 mph
What is the answer to this problem?
Answers
To start, an isosceles triangle is any triangle with two sides of the same length.
In this case, you are given two measurements: 20 and 30.
This means that the third side of the triangle can either be 20 or 30, since two of the sides must equal one another.
Because the question is asking for the greatest possible perimeter of the triangle, it would only make sense that the third side would have to be 30 units in length to make the greatest possible perimeter since it is the possible length that is greatest in value (20 < 30).
Therefore, knowing that the sides of the triangle are now 20, 30, and 30, add the lengths up to find the perimeter:
20+30+30
=80
Therefore, the largest possible value of the perimeter would be 80 units.
Hope this helps and I hope you have a marvelous day! :)
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Answers
The expression x²-14x+31=63 is a quadratic equation. To solve it, you must order it:
x²-14x+31-63=0
x²-14x-32=0
Then, you must apply the quadratic formula, which is shown below:
x=(-b±√(b^2-4ac))/2a
So you have the values of a,b and c:
:
a=1
b=-14
c=-32
When you substitute those values in the quadratic formula, you obtain:
x=(-(-14)±√((-14)^2-4(1)(-32))/2(1)
x1=-2
x2=16
So, the correct option is the third one: x=-2 or x=16
Marie earns $96 in interest each year on an investment what is the rate of simple interest if her principal was $800
Answers
The rate of simple interest that Marie earns on her $800 investment is 12% per year, calculated by dividing the annual interest earned ($96) by the principal amount ($800).
To find the rate of simple interest, we can use the formula Interest = Principal * rate * time. Given that Marie earns $96 in interest each year on an investment and her principal was $800, we can rearrange the formula to solve for the rate.
The formula for simple interest is:
Interest = Principal * rate * time
Assuming the interest earned is for one year, we have:
$96 = $800 * rate * 1 year
To find the rate, we divide both sides by $800:
rate = $96 / $800
rate = 0.12
Converting into a percentage, the simple interest rate is 12% per year.
Classify the number as natural, whole, integer, rational, and/or irrational. Select all terms that are correct. 7√
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Which equation has the graph that is a parabola with a vertex at 5,3
Answers
[tex]y=a(x-h)^2+k[/tex]
In our case h=5 and k=3, these are coordinates of our vertex point.
There is no way to find a without knowing any other coefficients.
When you start solving some equations to get the parameters you always end up with identity (example 25=25). This means that your equation has an infinite number of solutions. In other words, any a will give you a parabola with vertex at the specified point.
The final answer would:
[tex]y=a(x-5)^2+3[/tex]
Where a is any real number.
Select all of the following expressions that are equal to 2.5.
5 ÷ 2
-2(-1.25)
(-0.5)^2
-1 + (-1.5)
Answers
a) 5/2 = 2.5
b) -2(-1.25)
the elevation in denver colorado is 13 times greater than that of waikapu, hawaii. the sum of their elevations is 5600 feet. find the elevation of each city
Answers
h2 = denver height
A) 13 h1 = h2
B) h1 + h2 = 5,600
B) h1 + 13h1 = 5,600
B) 14h1 = 5,600
h1 = Waikapu height = 400 feet
h2 = 5,600 - h1
h2 = 5,600 -400
h2 = Denver height = 5,200
X divides into the line PQ in the ratio 2:3 P is (2,1) and Q is (12.5,7.5) work out the coordinates of point X
Answers
x = 2/5(Q) + 3/5(P)
= 2/5(12.5,7.5) + 3/5(2,1)
= 2( 2.5, 1.5) + 3( 0.4, 0.2)
= (5,3) + (1.2,0.6)
= (6.2, 3.6)
The Coordinates of X will be;
=(6.2, 3.6)
Answer: (6.2, 3.6)
Step-by-step explanation:
We know that if a point M (x,y) divide a line segment having endpoints [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] in ratio m:n , then the coordiantes of M is given by :-
[tex]x=\dfrac{mx_2+nx_1}{m+n}\ ;\ y=\dfrac{my_2+ny_1}{m+n}[/tex]
Given : X divides into the line PQ in the ratio 2:3 P is (2,1) and Q is (12.5,7.5).
Then, coordinate of X is given by :-
[tex]x=\dfrac{2(12.5)+3(2)}{2+3}\ ;\ y=\dfrac{2(7.5)+3(1)}{2+3}\\\\\Rightarrow\ x=\dfrac{31}{5}\ ;\ y=\dfrac{18}{5}\\\\\Rightarrow\ x=6.2\ ;\ y=3.6[/tex]
Hence, the coordinate of X = (6.2, 3.6)
Match the corresponding function formula with each function when h(x) = 3x + 2 and g(x) = 2 x .
1. k(x) = 2x + 3x + 2 k(x) = g(x) ∘ h(x)
2. k(x) = 2x - 3x - 2 k(x) = g(x) + h(x)
3. k(x) = (3x)2-x + 2-x + 1 k(x) = h(x) ÷ g(x)
4. k(x) = 23x + 2 k(x) = g(x) - h(x)
5. k(x) = 2x(3x + 2) k(x) = g(x) × h(x)
6. k(x) = 3(2x) + 2 k(x) = h(x) ∘ g(x)
Answers
h(x) = 3x + 2
g(x) = 2^x
I proceed to calculate the different values of K (x)
case 1) k(x) = g(x) ∘ h(x)
g(x) ∘ h(x)=g(h(x))
k(x) = [2]^[3x + 2]-----------> is the option 4. k(x) = 2^(3x + 2 )
case 2) k(x) = g(x) + h(x)
k(x) = [2^x]+[3x + 2]=2^x+3x+2--------> is the option 1.) k(x) = 2^x + 3x + 2
case 3)k(x) = h(x) ÷ g(x)
k(x) = [3x + 2]/[2^x]=3x/(2^x)+2/(2^x)=3x*(2^-x)+2^(1-x)
is the option 3.) k(x) = (3x)2^(-x) + 2^(-x + 1 )
case 4)k(x) = g(x) - h(x)
k(x) = [2^x]-[3x + 2]=2^x-3x-2--------> is the option 2.) k(x) = 2^x - 3x - 2
case 5) k(x) = g(x) × h(x)
k(x) = [2^x]*[3x + 2]-----------> is the option 5.) k(x) = 2^x(3x + 2)
case 6)k(x) = h(x) ∘ g(x)
h(x) ∘ g(x)=h(g(x))
k(x)=3*[2^x]+2---------------> is the option 6. k(x) = 3(2^x) + 2
To simplify the other user's answer (which is correct):
1 = B
2 = D
3 = C
4 = A
5 = E
6 = F
Alternatively, your right boxes should look like:
4
1
3
2
5
6
Fiecare dintre cei 25 de elevi ai clasei a |||-a a realizat un jurnal al luni . Stiind ca pentru fiecare zi s-a folosit o pagina si ca luna are 31 de zile,afla cate pagini au jurnalele tuturor elevilor.
Answers
Each of the 25 students in the class has made a journal on Monday. Knowing that every day a page was used and that the month is 31 days, find out how many pages the logs of all students.
Let
x--------------> total students
y--------------> total days in a month
z--------------> total page used per one student in 1 day
T--------------> total page used per total students in 1 month
we know that
x=25 students
y=31 pages
z=1 page
T=[x]*[y]*[z]------------> T=[25]*[31]*[1]------------> T=775 pages
the answer is 775 pages
the answer in Romanian
lăsa
x--------------> numărul total de elevi
y--------------> total zile într-o lună
z--------------> pagina totală utilizată pentru un student în 1 zi
T--------------> pagina totală utilizată pentru toți elevii în 1 lună
noi stim aia
x=25 elevi
y=31pagini
z=1 pagină
T=[x]*[y]*[z]------------> T=[25]*[31]*[1]------------> T=775 pagini
răspunsul este de 775 de pagini
Solve the system of equations using the linear combination method. {5m+3n=41 {3m−6n=9 Enter your answers in the boxes. m = n =
Answers
5m+3n=41
3m-6n=9 (multiplying the first equation by 3 and the second by 5)
15m+9n=123
15m-30n= 45 (subtracting the two equations)
39n = 78
n = 2,
and for m, 3m = 9+6(2)
= 21
m = 7
Therefore, n=2 and m=7
Answer:
n=2 m=7
Step-by-step explanation:
Solve the system of equations. 2.5y + 3x = 27 5x – 2.5y = 5 What equation is the result of adding the two equations? –8x = 328x = 325y + 8x = 328x – 5y = 32 What is the solution to the system? (–4, 6)(–2.75, 8.6)(2.75, 3.5)(4, 6)
Answers
.. (2.5y +3x) +(5x -2.5y) = (27) +(5)
.. 8x = 32 . . . . . . . . . . . . . . . . . . . . . . . your 2nd selection
b) The solution to the system is (4, 6), your 4th selection.
.. This is the only choice with x=4, the solution to part (a).
Answer:
8x=32
(4,6)
Step-by-step explanation:
.can you please help me thank you you will be given brainley
Answers
in the diagram, the areas of ADC and DCB are in a ratio of 3:4. what are the coordinates of point C
Answers
the complete question in the attached figure
we know that
dAB=dAC+dCB
dAC=√((8-1)²+(-2+9)²)=√98
Area triangle ADC=dAC*CD/2
Area triangle DCB=dCB*CD/2
Area triangle ADC/Area triangle DCB=3/4
[dAC*CD/2]/[dCB*CD/2]=3/4
dAC=(3/4)*dCB-----------------------> equation (1)
dAB=dAC+dCB=√98
dAC=√98-dCB------------------------ > equation (2)
(1)=(2)
(3/4)*dCB=√98-dCB------------------> (7/4)*dCB=√98
dCB=(4/7)√98
dAC=√98-dCB-------- > √98-(4/7)√98-----à (3/7) )√98
dAC=(3/7) )√98
find the slope point A (1.-9) and point B (8,-2)
m=(-2+9)/(8-1)=7/7=1-------------- > 45°
dAC=(3/7)√98
the component x of dAC is
dACx=(3/7)√98*cos45°=(3/7)√98*√2/2=(3/7)√196=3
the component y of dAC is
dACy=dACx=3
the coordinates of the point C are
point A(1.-9)
Cx=Ax+dACx----------> 1+3=4
Cy=Ay+dACy----------> -9+3=-6
the coordinates C(4,-6)
the answer is C(4,-6)
Answer:
C(4,-6) is correct on plato
Step-by-step explanation:
How do you write
2/4
as a percentage?
Answers
How do you solve this inequality: 7 ≤ x+11
Answers
7 ≤ x + 11
subtract 11 from both sides
-4 ≤ x
From there on, any number greater than or equal to -4 will be a solution to the inequality
Hope this helps
[tex] 7 \leq x+11 \\ \\ 7 -11\leq x \\ \\ -4 \leq x\qquad\to\qquad x\in \left[-4; +\infty) [/tex]
Trapezoid RSTV∼trapezoid WXYZ .
What is the scale factor of a dilation from RSTV to WXYZ ?
a. 14/25
b. 4/5
c. 7/8
d. 7/10
Answers
Answer:
Correct option is D
Scale factor of dilation is [tex]\frac{7}{10}[/tex]
Step-by-step explanation:
Given the two similar figures
Trapezoid RSTV∼trapezoid WXYZ
We have to scale factor of dilation from RSTV to WXYZ.
As the two trapezoid are similar therefore their ratio of corresponding sides gives the scale factor of dilation.
Hence, [tex]\text{scale factor of dilation is=}\frac{WX}{RS}=\frac{WZ}{RV}[/tex]
i.e [tex]\frac{28}{40}=\frac{35}{50}=\frac{7}{10}[/tex]
Hence, scale factor of dilation is [tex]\frac{7}{10}[/tex]