Answer: 1.3 seconds
Step-by-step explanation:
Given: Distance of the moon to the Earth = 384,400 km = 384400 x 1000 meters = 384400000 meters. [1 km = 1000 m]
Speed of light =[tex]2.998 \times 10^8[/tex] m/s = 299800000 m/s
Formula: [tex]\text{Time}=\dfrac{\text{Distance}}{\text{Speed}}[/tex]
Let t be the time taken by the light to travel from the moon to the Earth.
[tex]t=\dfrac{384400000}{299800000}\approx1.3\text{ seconds}[/tex]
Hence, it will take approximately 1.3 seconds for the light to travel from the moon to the Earth.
17) -15x=0
Help me math is next period!!
Answer:
x = 0
Step-by-step explanation:
-15x = 0
Divide both sides by -15
x = 0
x =0
Asha and Atulya has bookshelves of the same size. Asha's shelf is 2/3 full of books and Atulya's shelf is 2/5 full. Whose bookshelf is more full? By what fraction?
Answer: See explanation
Step-by-step explanation:
From the question, the following information can be gotten:
Asha's shelf is 2/3 full of books
Atulya's shelf is 2/5 full.
a. Whose bookshelf is more full?
Asha's shelf.
We can convert to Percentage to get this:
Asha = 2/3 × 100 = 66.7%
Atulya = 2/5 × 100 = 40%
By what fraction?
= 2/3 - 2/5
= 10/15 - 6/15
= 4/15
if x+y=12,and xy =22,find x^2+y^2
Here,
x+y=12 and xy=22
we know that,[tex]\tt{(x+y)^2=x^2+y^2+2xy }[/tex] ⠀
according to the question,
[tex]\tt{ (12)^2=x^2+y^2+2×22 }[/tex] ⠀
[tex]\tt{ x^2+y^2=144-44 }[/tex] ⠀
[tex]\tt{x^2+y^2=100 }[/tex] ⠀
BRAINLIEST IF RIGHT Solve for y
-4(y-2)=12
Y = 6
Y = -4
Y = -2
Y = -1
Answer:
-1
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−4(y−2)=12
(−4)(y)+(−4)(−2)=12(Distribute)
−4y+8=12
Step 2: Subtract 8 from both sides.
−4y+8−8=12−8
−4y=4
Step 3: Divide both sides by -4.
−4y
−4
=
4
−4
y=−1
Answer:
Step-by-step explanation:
Here you go mate
PEMDAS
Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction
Step 1
-4(y-2)=12 Remove parenthesis
-4y+8=12
Step 2
-4y+8=12 Subtract -8
-4y=4
Step 3
-4y=4 Divide both sides by 4
-4/4+4/4
answer
y=-1
PLEASE HELP describe the slope of a line then find the slope
Answer:
0?
Step-by-step explanation:
the line is fully horizontal meaning there isn't a slope
Kasha drove 135 miles and used 5.4 gallons of gas . The fuel efficiency of her car remains consistent and gas costs $2.59 per gallon, how much money can she expect to fill up her tank for an upcoming 300-mile roadtrip?
Answer:
31.80
Step-by-step explanation:
12 x 2.59 =$31.08
5(3x+ 9)−2x = 15x−2(x−5)
Answer:
yes
Step-by-step explanation:
If it is 7:25 A.M. and Antonio started his run 25 minutes ago, what time did Antonio start running?
Find value of X please
Answer:
x=7
Step-by-step explanation:
Step #1- Set the two lines equal to each other
10+12=x+15
Step #2- Solve for the line you have all values for
10+12=22
Step#3- Plug 22 back into the equation where the two lines are set equal to each other
22=x+15
Step #4- Solve for X algebraically
22=x+15
22-15=x
7=x
Can you guys help me ?
Arrange numbers in ascending order (smallest on top, largest at the bottom)
38, 175, 0, -50, -49
A) 175
B) 38
C) -50
D) -49
Answer:
1. -50
2. -49
3. 38
4. 175
Step-by-step explanation:
hope it helps
Answer:
C,D,B,A
Step-by-step explanation:
The more the negitive number is, it's smaller. So, the answer would be C,D,B,A
What is a square plus b square equal c square
PLEASE HELP!! Thank you in advance.
The formula for the lateral surface area of a cylinder is S=2πrh , where r is the radius of the bases and h is the height.
Solve for h.
Answer:
Solving for h gives us:
[tex]h = \frac{S}{2\pi r}[/tex]
Step-by-step explanation:
Given that
Lateral surface area of cylinder = S = [tex]2\pi rh[/tex]
Solving the equation or formula for a particular variable involves isolating the variable on one side of the equation without any factor or denominator.
In the given formula:
Dividing both sides by 2πr
[tex]\frac{S}{2\pi r} = \frac{2\pi rh}{2\pi r}\\h = \frac{S}{2\pi r}[/tex]
Hence,
Solving for h gives us:
[tex]h = \frac{S}{2\pi r}[/tex]
The three sides of a triangle are in the ratio 2:4:5. If the perimeter is 22 m, find the
length of the shortest side.
Answer:
what are primary numbers
Answer:
the length of the shortest side would be 4
Step-by-step explanation:
2:4:5
2 + 4 + 5 = 11
4 + 8 + 10 = 22
4:8:10
If f(x) = -2x^2 + 3 then f (-3) =
1) -15
2) 21
3) 39
4) -18
Answer:
1) -15
Step-by-step explanation:
Hi there!
In order to solve this problem, plug in -3 for all the x-values.
Your equation will become[tex]-2(-3)^2 +3.[/tex]
Now all you have to do is solve!
[tex]-2(9) + 3[/tex]
[tex]-18 + 3[/tex]
[tex]-15[/tex]
f(-3) = -15
I hope this helped!
From end zone to end zone , a football field is 120 yards long .how long is the football field in feet
Answer: 360 feet
Step-by-step explanation: Since there's 3 (feet) in 1 (yard) then in 120 yards you'll have to multiply it by 3, since 3 feet is in 1 yard. So in every yard is 3ft so you'll multiply.
120*3=360
Answer:
360
Step-by-step explanation:
I need some help on this
Answer:
y = 0
Step-by-step explanation:
5. From the choices below, choose an expression that is equivalent to the
expression below.
22
Answer: -(22/4)
Step-by-step explanation:
A) An empty bulldozer weighed 5 8 ⁄10 tons. If it scooped up 7 1 ⁄10 tons of dirt, what would be the combined weight of the bulldozer and dirt?
B) Gwen's new puppy weighed 8 5 ⁄8 pounds.Her new kitten weighed 2 2 ⁄8 pounds. How much more did the puppy weigh than the kitten?
C) Amy walked 2 5 ⁄6 miles in the morning and another 3 3 ⁄7 miles in the afternoon. What was the total distance she walked?
D) A recipe called for using 2 6 ⁄8 cups of flour before baking and another 3 1 ⁄2 cups after baking. What is the total amount of flour needed in the recipe?
E) 113 – 2
F) 215 – 4
Answer: 12 9/10 and 10 7/8
Step-by-step explanation:
5 8/10 plus 7 1/10 equals 12 9/10
8 5/8 plus 2 2/8 equals 10 7/8
HELP WILL GIVE 15 POINTS, GOOD RATING AND BRAINIEST
What is the slope of the line 3y=6x-1
Answer:
2
Step-by-step explanation:
Simplify 3y=6x+1;
y=2x-1/3
y=mx+b , where m represents the slope.
Slope; 2
Answer:
slope=2
Step-by-step explanation:
Joe is saving for a new online video game. He has some money already in his savings, and he can add $2.50 each week. This relationship is shown in the graph. Write an equation and explain what the slope and the y-intercept mean in this situation?
Answer:
Y=2.50×+b
Step-by-step explanation:
y-intercept and put that into b and theres ur equation the y- intercept (B) represents the initial money that joe had in his savings the 2.50× part or the slope is the money that he states he can add each week.
♡Have a nice day♡
If you bought a stock last year for a price of $139, and it has risen 5.4% since
then, how much is the stock worth now, to the nearest cent?
PLS ANSWER I HAVE LITTLE TIME
Answer:
To the nearest cent, the stock will be worth $ 146.51Step-by-step explanation:
Hope this helped ;)
Question 3
1 pts
Question 19
How many sides does a regular polygon have if the measure of each interior angle is 160
degrees?
[blank1]
Question 4
4 pts
Answer:
18
Step-by-step explanation:
each exterior angle=180-160=20
number of sides=360/20=18
what is bd?
(b is far off to the left but was cut out because image was too big)
Answer:
bd is a medical term meaning twice a day
What is the value of the expression (30 - 6b) when b is 3.5
Answer:
9
Step-by-step explanation:
30 - 6(3.5)
30 - 21
9
You have fifteen blankets that each take up 557 cubic inches of space. How many blankets could you pack into a 14-inch moving box?
a. 10 blankets
b. 4 blankets
c. 3 blankets
d. 13 blankets
Answer:
b i think please tell me if im wroung
Answer is 4.
Volume of cube:
The formula of volume of a cube of length l is l x l x l.
(Here), Given
volume of box = (14 x 14 x 14) = 2744 cubic inches.
1 blanket take 557cubic inches
Now, Number of blankets packed in a 14 inch box = 2744 / 557
=> 4.9
i.e., 4 complete blankets can pack.
Learn more about volume of cube here:
https://brainly.com/question/19373839?referrer=searchResults
#SPJ2
Triangle MNO on a coordinate plane is translated 6 units up to create triangle M' N' O'. Which one of the following rules describes this transformation? Help
Answer:
you answered correct it is d
Step-by-step explanation:
When y = 30, x = 6
a)
Work out an equation connecting
and x.
Answer:
y+x=36
Step-by-step explanation:
Answer:
30=k6
Step-by-step explanation:
because it is directly proportional, it has to be written as y=kx
i hope i helped
please mark it as brainliest!!<3
What two equations have a solution of (3, 6)
Answer:
y=2x and y=-x+9
Step-by-step explanation: