Answer:
18km/h
Step-by-step explanation:
72/4=18
speed = distance/time
i need help asap please help
Answer:
2.33333333333333333 (two point repeating three)
Express area of rectangle. Answer with a polonomial in stadard form. Image of rectangle below. Please answer, i will give brainiliest.
Answer:
Area = (x² + 11x + 24)
Step-by-step explanation:
Area of the blue square with sides 'x' units = (Side)²
= x²
Area of the pink rectangle = Length × width
= 3 × (x)
= 3x
Area of the orange rectangle = Length × Width
= 8 × 3
= 24
Area of the green rectangle = Length × width
= (x) × 8
= 8x
Now total area of the entire rectangle = x² + 3x + 24 + 8x
= (x² + 11x + 24)
Therefore, area of the entire rectangle will be a polynomial (x² + 11x + 24)
Marcus ran a 200-meter race in 25 seconds. What is his speed in meters per second?
Answer:
200/25 = 8 meters
Step-by-step explanation:
Just take the distance of 200 m and divide it by 25 seconds.
When the squares of two consecutive even integers are added, the sum is 244. Find
the integers.
May I get some help? Need answer immediately thanks
Answer:
This might help u........
If the one side of the rectangle is 8 ft and the other side is 3x-40, what is the area of
the rectangle?
Answer:
24x-320
Step-by-step explanation:
Area of a rectangle is length*width.
This basically means we have to multiply one of its sides with the other side.
Hence, our expression would be:
8(3x-40)
Simplify by distributing.
8*3x+8*-40
24x-320
The area of the rectangle is 24x-320.
3 · 32 + 8 ÷ 2 − (4 + 3)
Answer:
93
Step-by-step explanation:
96+4-7=92
frirst: (4+3)=7
(8÷2)=4
3.32= 96
5 hundreds × 10 = __50__ hundreds = __B__
Fill in blank B.
Answer:
Answer is 5000
Step-by-step explanation:
becaue when u multiple 5*100*10=5000
50*100=5000 so the answer is 5000
A store purchased a washing machine and marked it up 20% from the original cost of
$300. Then, wanting to make room for summer inventory, the store placed the washing
machine on sale for 75% off. What was the price after the discount?
Answer:
The answer is $270
Step-by-step explanation:
x -3y -3 =0 3x-9y-2=0
Answer:
No solution.
Step-by-step explanation:
x - 3y - 3 = 0
3x - 9y - 2=0
Multiply the first equation by - 3:
-3x + 9y + 9 = 0
Add this to the second equation:
0 + 0 + 7 = 0
0 = -7 , which is absurd so there is no solution to this system.
Thanks for the help, question below :)
Answer:
(a) Regression Equation : x = 6.33333y + 38.6875,
(b) Test Score will be about 89.4% if student sleeps 8 hours a night
Step-by-step explanation:
Using a regression calculator your equation should be as follows, where x = test scores, and y = average sleep.
(a) Solution : x = 6.33333y + 38.6875
We can check if this equation is ' suitable ' by plugging in the value 7 for y, and expecting an outcome of around 88 percent ...
x = 6.33333(7) + 38.6875 = 44.33331 + 38.6875
= 83.02061% - this may seem a bit too off, but it is predictable
Now let's plug in 8 for y, as to calculate the percent when a student sleeps for 8 hours ...
x = 6.33333(8) + 38.6875 = 50.66664 + 38.6875
= 89.35414% ≈ 89.4%
(b) Solution : Test Score will be about 89.4%
8x + 3 (x +1) = 5x - (9x – 6)
Answer:
x=1/5
Step-by-step explanation:
whats the value of the expression3-⁴
Answer:
1/81
Step-by-step explanation:
3^-4 = -81
Put this in a fraction: 1/81
Hope this helps you!
What is the degree for this
Answer: linear/first degree
Step-by-step explanation:
(6-t-t^4)+(9t+t^4)
=6-t-t^4+9t+t^4
=8t+6
The degree of a polynomial is determined by the highest degree in the polynomial. The highest degree in this binomial is one, which is first degree or known as linear.
Hope this helps!! :)
Please let me know if you have any question
Fill in the blank.
3 is ....% of 20
Answer: 15%
Step-by-step explanation:
3/20×100%=15%
This is representing 20 as the whole and 3 as the part. to find 3 is how many of 20, we get 3/20, and then multiplies 100% to get the final answer as a percentage.
Hope this helps!! :)
Please let me know if you have any question
Answer: 15%
Step-by-step explanation:
3/20= .15
Move the decimal 2 times to the left to get 15%
A builder needs 1,840 nails to finish a project. If the nails come in packages of 40, how many
packages should the builder purchase?
packages
Answer:
He would need 46 packs of nail
Step-by-step explanation:
1840/40
=46
what is 2 1\3 + 3 1\3
Answer:
The Fraction 21/3+31/3=17 1/3
Answer:
[tex]5\frac{2}{3}[/tex]
Step-by-step explanation:
2 + 3 = 51/3 + 1/3 = 2/3Put them together: 5 2/3
[tex] \frac{3}{4} |m - 2n| [/tex]
if m= -4 and n=6
Answer:
12
Step-by-step explanation:
what is the factored form of 4x2+23x-72
Answer:
(4x-9) (x+8)
Step-by-step explanation:
If one gallon of gas costs $2.50, how many gallons of gas could you buy for $16.2
Answer:
The answer is
6 gallonsStep-by-step explanation:
In order to solve this question we use ratio and proportion.
From the question
$ 2.50 is the price of one gallon
To find the number of gallons that cost $16.2 , multiply $16.2 by one gallon and divide it by $ 2.50
That's
[tex] \frac{16.2 \times 1}{2.50} [/tex]
= 6.48
We have the final answer as
6 gallons
Hope this helps you
A line segment starts at the point (2,3) and ends at the point (6,11). Find the equation of the perpendicular bisector of the segment. Demonstrate that your answer is correct. Your equation must be written in slope intercept form.
1). Slope = (-2)
2). Midpoint = (2, -2)
3). Slope of the perpendicular bisector = (1/2)
4). Equation of perpendicular bisector will be x - 2y = 6
Step-by-step explanation:
A line segment has the endpoints at (4, -6) and (0, 2).
1). Then the slope of the given line segment will be = (y - y')/(x - x') = (2 + 6)/(0 - 4) = 8/(-4) = (-2)
2). Mid point of the line segment is given by
Therefore midpoints of the line segment will be = (2, -2)
3). Slope of the perpendicular bisector is represented by
⇒ (-2)×m2 = (-1)
⇒
4). Now we have to find the equation of perpendicular bisector passing through (2, -2) and slope (1/2).
Since standard equation of the line will be given as y = mx + c
passes through (2, -2).
c = (-1) - 2 = -3
Finally the equation of perpendicular bisector will be
⇒ 2y = x - 6
⇒ 2y - x = -6
⇒ x - 2y = 6
Find the value of 2.
A.126
B.121.5
C.117
D.63
Answer:
D
Step-by-step explanation:
The tangent- tangent angle x is half the difference of the intercepted arcs.
The sum of the 2 arcs on the circle = 360°, thus
lower arc = 360° - 243° = 117°, then
x = [tex]\frac{1}{2}[/tex] (243 - 117)° = 0.5 × 126° = 63°
how many feet are in one story on the empire state building
Answer:
The building itself is 1,250 feet and 102 stories high.
Uhm what class is this for
1. 4x– 15 = 17 - 4x+10x
Help?
Answer:
answer:3x
Step-by-step explanation:
4x15=60
60-17=43
4x10=40
43-40=3x
I need help with 14 and 15
Simplify the Radical Expression
3V2 - V8 +4V12+53
A shop buys a pair of shoes for $50. They sell them for $60. What is the mark–up on the shoes? in dollars
Answer:
the mark-up is $10 or 20% of the original price.
Step-by-step explanation:
This is because 60-50 is 10. And 20% or 1/5 of 50 is 10.
1. How many squares would 100th case have?
2. Which case would have 289 squares?
Answer:
case 1 = 4
case 2 = 9
case 3 = 16
The results are squares.
case 100 = 10201
solution:
case 1 = 2²
case 2 = 3²
case 3 = 4²
case 100 = 101²
101² = 10201
case 17 = 289
solution:
√289 = 17.
Can you write a rule for finding the output (absolute guessing error) given the input (a guess)?
Answer:
The rule for the plotted line is [tex]y = \left | x - 50 \right |[/tex]
Step-by-step explanation:
The coordinates when y = 0, x = 50
When y = 10, x = 60
Therefore, the slope = (10 - 0)/(60 - 50) = 1
The equation in slope and intercept form is y - 10 = 1 × (x - 60)
y = x -60 + 10 = x -50
y = x - 50
Also, we have
When y = 20, x = 30
y = 10, x = 40
Therefore, the slope = (10 - 20)/(40 - 30) = -1
The equation in slope and intercept form is y - 10 = -1 × (x - 40)
y = -x + 40 + 10
y = 50 - x
Therefore, when x < 50, y = 50 - x
When x > 50, y = x - 50
Which is equivalent to [tex]y = \left | x - 50 \right |[/tex]
The rule for the plotted line is [tex]y = \left | x - 50 \right |[/tex]
A ship leaves Coffs Harbour and sails 320 km east. It then changes direction and sails 240 km due
north to its destination. What will the ship's bearing be from Coffs Harbour when it reaches its
destination, correct to two decimal places?
Answer: Bearing = 41.41°
Step-by-step explanation:
[tex]\tan \theta=\dfrac{opposite}{adjacent}\\\\\\\tan \theta=\dfrac{240}{320}\\\\\\.\quad \theta=\tan^{-1}\bigg(\dfrac{240}{320}\bigg)\\\\\\.\quad \theta =48.59^o[/tex]
Bearing is measured clockwise from North (90° on a Unit Circle = bearing of 0°)
Bearing = 90° - Ф
= 90° - 48.59°
= 41.41°