Answer:
Distance between school and home = 105 miles.
Step-by-step explanation:
Let distance = D miles
Time to take walking/jogging, t1 = D/6 hours
Time by car, t2 = D/35 hours
Average time, t
= (t1+t2)/2
= D(1/6+1/35)
= (D/210)(35+6)
=41D/210 hours
Given t = t1-3 hours
41D/210 - D/6 = 3
Solve for D
41D/210 - 35D/210 = 3
(41-35)D/210 = 3
6D/210 = 3
D = 3*210/6 = 105 miles.
(Appreciate very much Diana's efforts to walk/job 105 miles to school, and we understand how lucky we are in most of Europe and North America)
find the square (3x+y)
Answer:
9x² + 6xy + y²
Step-by-step explanation:
(a + b)² = a² + 2ab + b²
a = 3x
b = y
(3x +y)² = (3x)² + 2*3x*y + y²
= 9x² + 6xy + y²
(3x)² = 3²*x² = 3*3*x² = 9x²
Jessica plans to watch 3 movies each month. Write an equation to represent the total number of movies n that she will watch in m months.
(PLEASE ANSWER QUICK) Which data set could be represented by the box plot shown below?
Answer:
Your answer is B
Step-by-step explanation:
The lowest number is 4, therefore it cannot be C.
Now you'll have to cross out numbers on both sides and your mean will be 9 because you'll have to add 8 and 10 together and 18 divided by 2 is 9.
Next, put a line between 8 and 10, now the 8 side is the lower quartile and the 10 side is the greater quartile.
For the lower quartile, add 7 and 7 together, divide 14 by 2 and the lower quartile is 7.
For the greater quartile, add 11 and 13 together, that's 24, divide 24 by 2 and that's 12.
Lowest: 4
Mean: 9
Lower quartile: 7
Greater quartile: 12
Highest: 14
Therefore your answer is B and not A or C.
if f (x) = ax+b , f(5) = 26 and f (2)=14 find value of a and b
Answer:
Hope it helps you:)
.....................
In square inches, what is the area of the composite shape?
**DO NOT INCLUDE LABELS IN YOUR ANSWER!
8 in.
X
8 in.
Answer:
40[tex]\pi[/tex]
or 125.66 rounded
Step-by-step explanation:
area of triangle:
1/2(b*h)
1/2(8*8)
1/2(64)
=32
area of half circle:
[tex]\pi r^{2}[/tex]/2
[tex]\pi r^{2}[/tex]/2
[tex]\pi 4^{2}[/tex]/2
[tex]\pi16[/tex]/2
[tex]\pi8[/tex] or 8[tex]\pi[/tex]
So, 8[tex]\pi[/tex] + 32=40[tex]\pi[/tex]
In a ABC shown below, side AC is extended to point D with m Z DAB= (180 – 3x) °, mZ B= (6x – 40) °, and m ZC = (x+20) °.
Whats the measure of angle BAC?
Answer:
60°
Step-by-step explanation:
Given :
DAB= (180 – 3x) °,
mZ B= (6x – 40) °, and
m ZC = (x+20) °.
DAB = mZ B + m ZC ( the exterior angle equal the sum of the two opposite interior angles)
180 - 3x = (6x - 40) + (x + 20)
180 - 3x = 6x - 40 + x + 20
180 - 3x = 6x + x - 40 + 20
180 - 3x = 7x - 20
180 + 20 = 7x + 3x
200 = 10x
x = 200/10
x = 20
Angle B = 6x - 40 = 6(20) - 40 = 120 - 40 = 80
Angle C = x + 20 = 20 + 20 = 40
BAC = 180 - (80 + 40) (SUM OF ANGLES IN A TRIANGLE)
BAC = 180 - 120
BAC = 60°
Higher Order Thinking A student says that he was rearranging furniture at home and he used
a glide reflection to move a table with legs from one side of the room to the other. Will a glide
reflection result in a functioning table? Explain.
9514 1404 393
Answer:
yes
Step-by-step explanation:
A table is a 3-D object. It makes no sense to talk about reflecting it across a point or line. If the table is reflected across a vertical plane, the top will remain "up" and the legs will remain "down".
A glide reflection across a vertical plane will result in a functioning table.
Which represents the value of s in s + 12 2 100?
Answer:
C)
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
s + 12>= 100
s>=100-12
s>=88
Solve the compound inequality |3x-9|≤15 and |2x-3|≥5. Give answer in interval notation.
Answer:
Step-by-step explanation:
|3x-9|≤15
-15≤3x-9≤15
-15+9≤3x≤15+9
-6≤3x≤24
-2≤x≤8
x∈[-2,8]
|2x-3|≥5
2x-3≤-5
2x≤-2
x≤-1
and
2x-3≥5
2x≥8
x≥4
solution is x∈[-2,-1]∪[4,8]
What is the image point of (-2,-2) after a translation right 3 units and up 1 unit?
Answer:
(1,-1)
Step-by-step explanation:
The shorter leg of a right triangle is 6ft shorter than the longer leg. The hypotenuse is 6ft longer than the longer leg. Find the side lengths of the triangle.
Answer:
mmm I think you first subtraction
What is the Value of 10 − (1 over 2)^4 ⋅ 48
2
4
5
7
Answer: ok so your answer will be 7 so D,
Step-by-step explanation: just follow the simple P.E.M.D.A.S
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Dan built a cubed shaped toy box of wood for his daughter. Each side of the toy box measures 2feet. How much wood did Dan use to build the toy box?
Answer:
12 feet is what i believe is the answer
Step-by-step explanation:
Brainleist :)
63,21,7 write an explicit formula
Answer:
7×3³-n
Step-by-step explanation:
This is a geometric sequence
Use nth term of geometric sequence formula

Ratio is 27/63=1/3
First term is 63

Simplify expression

In ΔJKL, the measure of ∠L=90°, JL = 80, KJ = 89, and LK = 39. What is the value of the sine of ∠J to the nearest hundredth
Given:
In ΔJKL, m∠L=90°, JL = 80, KJ = 89, and LK = 39.
To find:
The value of sine of ∠J.
Solution:
In a right angle triangle,
[tex]\sin\theta =\dfrac{Perpendicular}{Hypotenuse}[/tex]
In triangle JKL,
[tex]\sin J =\dfrac{LK}{KJ}[/tex]
[tex]\sin J =\dfrac{39}{89}[/tex]
[tex]\sin J =0.4382[/tex]
[tex]\sin J \approx 0.44[/tex]
Therefore, the value of sine of ∠J is about 0.44.
how many people travel more than 30 miles to work?
b)?
Answer:
b
Step-by-step explanation:
around 500 people travel more than just 30 miles to work, sum even travel across the states
if the diameter of a circular wall clock is 30 cm, what is the area of rhe clock?
Answer:
Step-by-step explanation:
radius=diameter/2
=30/2
=15 cm
area of a clock=πr^2
=3.14*(15)^2
=3.14*225
=706.5 cm^2
Applications and Reasoning:
4. Find the sum of: 300 + 301 + 302 + 303 + 304 + ... + 1239.
hope it helps you see the attachment for further information
Express 1.2 km as a percentage of 300 m
Answer:
1.2km is 400% of 300m
Step-by-step explanation:
1 km=1000m
So,1.2 km=1000*1.2=1200m
Let 1.2km(or 1200m) be x% of 300 m
By the problem,
300*x/100 = 1200
Or, 3x=1200
Or,x=1200/3=400
1.2km is 400% of 300m
Help please !!!!!!!!!!!!
Answer:
C, HL
Step-by-step explanation:
Since the triangles share a side, they have a congruent leg. Looking at the tick marks, the triangles also have congruent hypotenuses. So, they are congruent by the Hypotenuse Leg theorem.
What is the image of (2, 4) after a reflection over the x-axis?
when measuring the radius of a sphere an error of 0.6% takes place in the measurement. What will be the permiable error while measuirng the surface
Answer:
So, the error is [tex]4.8\pi r[/tex].
Step-by-step explanation:
Error in measuring the radius = 0.6 %
Let the radius is r.
The surface area of sphere is
[tex]S= 4\pi r^2\\\\dS = 4 \pi\times 2 r dr\\\\dS =8\pi r \times 0.6 = 4.8\pi r[/tex]
Which of the following is a point-slope equation of a line that passes through the points (-1, 4) and (8,-2)?
A. y-4= -3/2(x+1)
B. y-4= -2/3(x+1)
C. y-4= 2/3(x+1)
D. y-4= -2/3(x-1)
Answer:
B
Step-by-step explanation:
We want to find the point-slope equation of a line that passes through the points (-1, 4) and (8, -2).
Point-slope form is given by:
[tex]y-y_1=m(x-x_1)[/tex]
Where m is the slope and (x₁, y₁) is a point.
So, let's find the slope of the line first. We can use the slope formula:
[tex]\displaystyle m=\frac{\Delta y}{\Delta x}=\frac{-2-4}{8-(-1)}=\frac{-6}{9}=-\frac{2}{3}[/tex]
We can choose (-1, 4) as our point. So, (x₁, y₁) = (-1, 4).
Substitute:
[tex]\displaystyle y-(4)=-\frac{2}{3}(x-(-1))[/tex]
Simplify:
[tex]\displaystyle y-4=-\frac{2}{3}(x+1)[/tex]
Therefore, our answer is B.
what is the difference (2x minus 3) minus (x minus 1)
Answer:
x-2
Step-by-step explanation:
Answer:
x-2
Step-by-step explanation:
(2x-3) - (x-1)
= 2x-3-x+1
= x-2
the Satya Vansh become an important dynasty in the world of
Answer: it’s 352425262625251452 is 4th of July and I am present
Step-by-step explanation:
how do you find volume of sphere, cylinder, cone ? ... explaining please
Answer:
hmmmm
Step-by-step explanation:
Cone
The volume of a cone is linked to the volume of a cylinder. A cone is one third of the volume of a cylinder. The volume of a cone is ¹/₃ × π × r² × l. To calculate the volume we multiply these values together. The answer will be written in units³.
Sphere
The volume of a sphere is ⁴/₃ × π × r³. To calculate the volume we multiply these values together. The answer will be written in units³.
Cylinder
The volume of a cylinder is π × r² × l (r is the radius of the circle and l is the length of the cylinder). To calculate the volume we multiply these values together. The answer will be written in units³. It is more accurate to use π = 3.142 or the π button on a calculator.
A cone is a 3D shape with 2 faces and one edge
A sphere is a 3D shape. It has one continuous face and no edges
A cylinder is a type of prism. It has 3 faces and 2 edges
website I used: https://www.bbc.co.uk/bitesize/topics/zrf3cdm/articles/ztqsdxs
I hope this helped!
(easy math question please help) find the value of x question #5
Answer:
x = 10
Step-by-step explanation:
Angles in a triangle add up to 180°. Using this, we can form the following equation:
71° + 50° + 6x - 1 = 180. A simplified version is this: 120° + 6x = 180
Remove 120° from both sides to get:
6x = 60
Divide both sides to get:
x = 10
Hope this helps!
Currently offering 100 points.
The dot plots below show the ages of students belonging to two groups of music classes:
Based on visual inspection, which group most likely has a lower mean age of music students? Explain your answer using two or three sentences. Make sure to use facts to support your answer.
Answer:
a ?
Step-by-step explanation:
Answer:
I'm pretty sure it's A? makes more sense
i will mark the brainliest 100 points
Answer:
4 squared is 16 so 16 times 3.14= 50.24
Step-by-step explanation:
Answer:
4^2 = 16
16 x 3.14 = 50.24 in2
Step-by-step explanation:
Formula of area of a circle:
π x r^2(radius being squared)
To make it more easier:
3.14 or 22/7 x radius^2
Some keywords:
Radius: Half of your diameter or given radius
Radius Squared: Your radius squared, your radius to the power of 2.
Pi: 3.14 or 22/7 depending on what they tell you to use for pi
A sphere p has a volume of 75 cm cube. Find the volume of a sphere whose radius is twice the radius of p
Answer:
https://www.gigacalculator.com/calculators/volume-of-sphere-calculator.php this the link for the marth calculate
find the volume of a sphere. Only a single measurement needs to be known in order to compute the volume of a sphere and that is its diameter. For example, if the diameter is known to be 20 feet, then calculate the volume by using the first formula above to get 4/3 x 3.14159 x (20/2) 3 = 4.1866 x 1000 = 4188.79 ft 3 (cubic feet).