most of the time we ____ energy but it is everywhere around us
Answer:
waste
Step-by-step explanation:
Try to think of something that doesn't involve energy and you won't get very far. Even thinking—even thinking about energy!—needs some energy to make it happen. In fact, everything that happens in the world uses energy of one kind or another. But what exactly is energy?
Energy is a bit of a mystery. Most of the time we can't see it, yet it is everywhere around us. Revving car engines burn energy, hot cups of coffee hold energy, street lights that shine at night are using energy, sleeping dogs are using energy too—absolutely everything you can think of is using energy in one way or another. Energy is a magical thing that makes other things happen. Everything in the world is either energy or matter ("stuff" around us) and even matter, when you really get down to it, is a kind of energy!
Please can someone do itpleaseeeeeeee
Answer:
a=250
b=10
done...
Please help me....................
Answer:
B = 43°
a = 44.7
c = 53.3
Step-by-step explanation:
✔️B = 180° - (90° + 47°) (sum of interior angles of a ∆)
B = 180 - 137
B = 43°
✔️Use trigonometric ratio formula to find a:
reference angle = 47°
Opposite = a
Adjacent = 29
Thus,
tan 47 = a/29
Multiply both sides by 29
29*tan 57 = a
44.7 = a
a = 44.7 (nearest tenth)
✔️Use trigonometric ratio formula to find a:
reference angle = 47°
Opposite = a = 44.7
Hypotenuse = c
Thus,
Sin 47 = 44.7/c
Multiply both sides by c
c*sin 57 = 44.7
Divide both sides by sin 57
c = 44.7/sin 57
c = 53.3 (nearest tenth)
In a survey of first graders, their mean height was 51.6 inches with a standard deviation of 3.6 inches. Assuming the heights are normally distributed, what height represents the first quartile of these students?
Answer:
Step-by-step explanation:
In a survey of first graders, their mean height was 51.6 inches with a standard deviation of 3.6 inches. Assuming the heights are normally distributed, what height represents the first quartile of these students?
54.03 inches
48.57 inches
48.00 inches
49.17 inches
PLEASE I REALLY NEED HELP I OFFER 15 POINTS
Answer:
-5=25 ------>x= -5
[tex]\frac{x}{5}[/tex]= -5 --------> x=-25
-1.2x=-6 --------> x=5
[tex]\frac{x}{0.5}[/tex] = 50 ---------> x=25
Brainliest would be nice!If CE = 3x - 10 and EA = 2x + 1, then CA=
Answer:
46
Step-by-step explanation:
First you need to solve.. So put 3x - 10 and 2x + 1 together as one equation.
It should look like this:
3x - 10 = 2x + 1
Now you just need to solve it.
1) First you add 10 on both sides.
3x - 10 = 2x + 1
+ 10 = + 10
------------------------
3x = 2x + 11
2) Then you subtract 2x on both sides.
3x = 2x + 11
- 2x =- 2x + 11
-------------------------
x = 11
3) Now you plug in 11 for x.
3x - 10 = 2x + 1
Like this:
3(11) - 10 = 2(11) + 1
33 - 10 = 22 + 1
23 =23
So C to E and E to A = 23
To get from C to A just add 23 + 23 which is 46. And that is ur answer.
Answer:
it is 46
Step-by-step explanation:
First you need to solve.. So put 3x - 10 and 2x + 1 together as one equation.
It should look like this:
3x - 10 = 2x + 1
Now you just need to solve it.
1) First you add 10 on both sides.
3x - 10 = 2x + 1
+ 10 = + 10
------------------------
3x = 2x + 11
2) Then you subtract 2x on both sides.
3x = 2x + 11
- 2x =- 2x + 11
-------------------------
x = 11
3) Now you plug in 11 for x.
3x - 10 = 2x + 1
Like this:
3(11) - 10 = 2(11) + 1
33 - 10 = 22 + 1
23 =23
So C to E and E to A = 23
To get from C to A just add 23 + 23 which is 46. And that is ur answer.
you can slove this in this way if want more explansion ask me
what is 61÷207.4 again help me someone
Answer:
3.4
Step-by-step explanation:
find the measurement of angle 1
Answer:
100 degrees.
Step-by-step explanation:
The missing angle on the bottom triangle is equal to 80 degrees because a triangle's interior angles add up to 180deg.
Think of that middle angle between angle 1 and the two triangles as a full 360deg. Since VAT (Vertical Angle Theorem) suggests that vertical angles are equal, 160deg of that 360deg are taken up by the missing angles in the triangles. That leaves 200deg to split between angle 1 and its equal vertical angle, which means angle 1 is 1/2 of 200, or 100deg.
what is the slope of the line represented by the equation?
Answer:
It is 4/5
Step-by-step explanation:
hope it helps ^^
Elizabeth practices the piano 1470 minutes in 5 weeks. If t represents the total time she practices for any number of days, d, write a proportional equation for t in terms of d that matches the context.
Using proportions, it is found that the proportional equation for t in terms of d that matches the context is:
[tex]t = 42d[/tex]
Elizabeth practices the piano 1470 minutes in 5 weeks, hence, each day, consdering a week has 7 days, the amount of time she practices is:
[tex]a = \frac{1470}{35} = 42[/tex]
Hence, the proportional equation, considering t the time in minutes and d the number of days, is:
[tex]t = 42d[/tex]
You can learn more about proportions at https://brainly.com/question/24372153
3: Find the slope:
(2, -6), (-4,-3)
Answer:
-(1/2)
Step-by-step explanation:
Slope is the Rise/Run
Going from left to right for (2, -6), (-4,-3):
Rise = (-3 - (-6)) = 3
Run = (-4, -2) = -6
Slope = Rise/Run = 3/-6 = -(1/2)
You traveled 175 miles in 2.5 hours. How many miles will you travel per hour?
Work Space
Please hurry
Answer:
70 miles / hour
Step-by-step explanation:
d = 175 miles
t = 2.5 hours
r = d/t
r = 175 / 2.5
r = 70 miles / hour
I will give brainiest to whoever answers correctly !!
Answer:
$2936.79
Explanation:
The Formula for compounding interest:
[tex]F = I(1 + \frac{r}{n})^{nt}[/tex]
F = final amount (we need to find this)
I = initial amount (900 + 250 + 300 + 1400 = $2850)
r = interest rate (1% = 0.01)
n = number of times interest applied per time period (360)
t = number of time periods elapsed (36 months = 3 years)
[tex]F = 2850(1 + \frac{0.01}{360})^{360*3}[/tex]
F = 2850(1.030454105)
F = $2936.79
Answer:
He will have a total of $2936.79
Step-by-step explanation:
The total to be invested is the addition: 900+250+300+1400=2850
Now we invest this amount at the specified rate for three years (equivalent to 36 months), and use the compounded interest formula:
[tex]A=P(1+r/n)^{n*t}\\A=2850(1+0.01/360)^{3*360}\\A\approx 2936.79[/tex]
help geometry unit 1
Answer:
here you go...........
5x - 10y=-20
5x + 3y = 6
Show work
Answer:
5x -10y= -20
5x + 3y = 6
-(5x + 3y=6)
5x-10y=-20
-5x-3y=-6
-10y -3y = -20 -6
-13y=-26
y= -26/-13
y=2
5x-10(2)=-20
5x-20=-20
5x=-20-20
5x=-40
x= -40/5
x= -8, and y= 2
A television is on sale for 20% off. If the sale price is $399, what was the original price?
A. $319.20
B.$1,995
C. $498.75
D. $379.00
Answer:
[tex]\$498.75[/tex]
Step-by-step explanation:
Let [tex]x[/tex] be the original price of the item. We can set up the following equation:
[tex]x\cdot (1-0.2)=399[/tex].
Solving for [tex]x[/tex], we get:
[tex]x\cdot 0.8=399,\\x=\frac{399}{0.8},\\x=\fbox{$\$498.75$}[/tex].
700
630
560
490
420
nt
350
ur
280
s)
210
140
70
0
3
The value of y when x is 0
please pic the photo correct ly
Which rational number could be graphed between 0 and 1?
-5
-4
-3
-2
-1
0
1
2
3
-
نات
Nw
1.75
Suzie ate brunch at a restaurant. The bill came to $6 .If she left a 15% tip, how much was the tip
Answer:
0.9 Its the answer,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
How can we find th volume of this fish tank
Answer:
From the length (owo)
Step-by-step explanation:
All you need is to measure your fish tank's length (from side to side), height (from top to bottom of the tank), and depth (from front to back) and you can figure out how much water your aquarium holds! Tank Width: Numbers only, please. The width of an aquarium is the distance across the front.
Answer: look at the picture and you will see the answer
Step-by-step explanation: hope this help
solve for x x−3/11=8
x=
WILL GIVE BRAINLEST
1.1.4 Practice: Scale Drawings
Practice
Math 7 Sem 2
Points Possible:5
Name:
William Bennett
Date:
Tips for Success
Read the assignment carefully and make sure you answer each part of the question or questions.
Check your work when you're done.
Your Assignment
Jason and Adam are using a kit to build their own electronics board for a computer project. They use a scale drawing included in the instructions to help build the board.
Jason will use the scale factor to find the board's actual length and width, then multiply those dimensions to find the board's area.
Adam says he knows another way.
Answer the questions to show how Adam could find the area of the scale drawing, and then use this strategy to find the area of the electronics board.
1. What is the area of the board shown on the scale drawing? Explain how you found the area.
Write your answer in the space below.
2. How can Adam use the scale factor to find the area of the actual electronics board? Remember, he uses a different method than Jason.
Write your answer in the space below.
3. What is the area of the actual electronics board?
Write your answer in the space below.
Answer:
do we answer all of them are just one
Tell which property the statement illustrates. 2+(12+r)+r
a person runs around a square field of side 70m, while another person runs around a rectangular field with length 90m and breadth 60m. Who covers more distance by how much?
Step-by-step explanation:
Given that,
The side of a square field = 70 m
The dimensions of a rectangular field with length 90m and breadth 60m.
The distance covered by the person on square field is given by :
P = 4×side
= 4×70
= 140 m
The distance covered by the person on a rectangular field is given by :
P = 2(l+b)
= 2(90+60)
= 2×150
= 300 m
Hence, a person will cover more distance in the rectangular field.
Which linear inequality is represented by the graph ?
Y > 2/3x - 1/5
Y > or = to 3/2x + 1/5
Y < or = to 2/3x + 1/5
Y < 3/2x - 1/5
Answer: y ≤ (2/3)*x + 1/5
Step-by-step explanation:
In the graph, we can see a solid line (this means that the values of the line are part of the solution, then the symbol used will be ≤ or ≥)
Also, we can see that the shaded part (the shaded part is the solution of the inequality) is below the line. This means that y is equal to the values in the line, or smaller than the values in the line. Then we will have something like:
y ≤ a*x +b
The only option that uses this symbol is:
Y < or = to 2/3x + 1/5 (y ≤ (2/3)*x + 1/5)
Then this is the correct option.
What's the value of 280?
Question 5 options:
28
1
0
128
Answer:
28⁰ = 1
Step-by-step explanation:
If you raise a number to the power of zero, it becomes 1, regardless of the number. The only exception is 0⁰, which is undefined. Any other value to the power of zero equals one.
The easiest way to see it is like this:
Pick any value, we'll call it x
x⁴ = x⁵ / x
x³ = x⁴ / x
x² = x³ / x
x¹ = x² / x
x⁰ = x¹ / x
Because x¹ is equal to x, then x⁰ is just x/x, which is always equal to 1, unless x is equal to zero.
Answer:
280^0 is 1
Step-by-step explanation:
with exponents u have to multiply the base (280) by whatever the exponent is (0), but since the exponent is 0, use multiplicative identity to get 1. any number to ^0 is 1 because its the same as the product on no number at all (0)
its really confusing but i tried my best to explain it lol T-T
A baseball team is having an opening night ticket sale and all tickets are 25% off.
What is the discounted amount if the original ticket price is $85?
Answer:
9
Step-by-step explanation:
i took the test
A barrel contained 160 liters of oil that cost $51.20.
What is the cost for one liter?
Answer:
0.32 yes mhmmmhmhmhwididididurruuidididi
Solve for x.
3x-161
7x-382
Answer:
Step-by-step explanation:
7x - 382 = 3x - 161
4x - 382 = -161
4x = 221
x = 55.25
The lowest point in Death Valley is Badwater at 282 feet below sea level. The highest point in
the surrounding mountains is Telescope Peak at 11,043 feet above sea level. How many feet
higher is Telescope Peak than Badwater?
Answer:
Step-by-step explanation:
Given
[tex]Badwater = -282ft[/tex]
[tex]Telescope\ Peak = 11043ft[/tex]
The position of badwater is negated because it is below sea level
The interpretation of the question, is to calculate the distance between the two given points.
This is calculated as:
[tex]Difference = Telescope\ Peak - Badwater[/tex]
[tex]Difference = 11043ft - (-282ft)[/tex]
Open bracket
[tex]Difference = 11043ft+282ft[/tex]
[tex]Difference = 11325ft[/tex]
Hence, the distance between both is 11325ft