Answer:
Light is about 299,999,700 mps (meters per second) faster than sound in dry air.
Step-by-step explanation:
We know that the speed of light is about 3 × 10 ^ 8 meters per second and that the speed of sound in dry air is about 3 × 10 ^ 2 meters per second. We need to solve 3 × 10 ^ 8 minus 3 × 10 ^ 2.
3 × 10 ^ 8 - 3 × 10 ^ 2 =
300,000,000 - 300 = 299,999,700
Light is about 299,999,700 mps (meters per second) faster than sound in dry air.
Answer: 3 x 10^2 m/s times 10^6 = 3 x 10^8 m/s
Step-by-step explanation:
if f(x)=x²-18x+91, solve for x when f(x)=10
Answer:
x = 9
Step-by-step explanation:
x²-18x+91 = 10
x²-18x+81 = 0
(x-9)(x-9)= 0
x = 9
check:
9² - 18 (9) + 91
81-162+91 = 10
A leak in a pool causes the height of the water to decrease by 0.25 foot over 2 hours. After the leak is fixed, the height of the water is 4.75 feet. The equation 4.75 = x + (negative 0.25) can be used to find x, the original height of the water in a pool
What was the original height of the water in the pool in fet
Answer:The table shows pairs of random digits. The pairs in each group simulate the 5 shots taken by the opponent.
Answer the questions to estimate the probability that the Iceblades will win the game.
1. The paired digits 00 to 99 represent 100 shots.
Let 00 to 72 = a shot that is saved. Which digits represent a goal scored? Explain.
Write your answer in the space below.
2. Each group represents the 5 shots taken by the other team. To win the game, the Iceblades cannot let the other team score any goals.
For a group to be a success, how many of the 5 shots does the goalie need to save?
Write your answer in the space below.
3. Group 1 is a success. Explain why.
Write your answer in the space below.
4. In this simulation, which groups are successes? How many successes are there in the 10 groups
Step-by-step explanation:
The sail of a boat is in the shape of a right triangle, as shown below:
The sail of a boat is a right triangle with an acute angle equal to 40 degrees and the side adjacent to the 40 degrees angle is
Which expression shows the height, in meters, of the sail? (6 points)
Select one:
a. 2 divided by sec 40 degrees
b. 2 cosec 40°
c. 2 sin 40°
d. 2 divided by cot 40 degrees
Answer:
D
Step-by-step explanation:
Answer: 2 divided by cot 40 degrees
Step-by-step explanation: ima nerd
which one is greater 3/40 or 7.5%
Answer: they are equal
To write a fraction as a percentage the easiest method is if we can change the denominator to 100.
#3/40 xx2.5/2.5 = 7.5/100 = 7.5%#
In many cases that method does not work,
so we can also do this by #xx 100%#
#3/40 xx 100%#
=#7.5%#
Step-by-step explanation:
Does the table or graph represent a linear or nonlinear function?
Explain.
PLS ANSWER WILL GOVE BRAINLEST!
3(16 - 4 x 3) + 7 =???
Answer:
-36x+55
Step-by-step explanation:
3(16−4x(3))+7
=(3)(16)+(3)(−12x)+7
=48+−36x+7
next you have to combine like terms
=48+−36x+7
=(−36x)+(48+7)
=−36x+55
Together, teammates Pedro and Ricky got 2675 base hits last season. Pedro had 279 more hits than Ricky. How many hits did each player have?
Answer:
2396
Step-by-step explanation:
2675-279=2396
Tell which number is greater.
80%,
17
9
is greater.
Answer:
80%
Step-by-step explanation:
Answer:
80% is greater.
Step-by-step explanation:
80% is also 8/10. 8/10 is greater than 7/9.
Hope it helps!
How come this person didn’t divide EVERYTHING on the left by 2? I thought you had to...
The short answer is that algebra doesn't work that way. You wouldn't divide *everything* by 2, but every term that contains a factor of 2.
In the expression
2 (6x - 1) + 2 (2x + 5)
both terms have a factor of 2 (the 2 out in front of them). They're the ones that get canceled when dividing by 2:
(2 (6x - 1) + 2 (2x + 5)) / 2 = 2/2 (6x - 1) + 2/2 (2x - 5)
… = 1 (6x - 1) + 1 (2x - 5)
… = (6x - 1) + (2x - 5)
and so on.
Looking ahead, it turns out that the equation is solved by x = 7. This makes 6x - 1 = 41 and 2x + 5 = 19. So the equation is saying that, if you make these replacements,
2×41 + 2×19 = 120
If you divide *everything* on the left by 2, you end up with fractions:
(2/2)×(41/2) + (2/2)×(19/2) = 41/2 + 19/2
but 41 + 19 = 60, so the end result would be 30, but that's not the same as 120/2 = 60.
-2x+4y=40 find the y intercept and find the x intercept
(show the work please)
Could someone help with 15x-10 factorised
Answer:
5(3x-2)
Step-by-step explanation:
This is the answer
Answer:
5(3x-2)
Step-by-step explanation:
this is the answer hope it helps...
take the common factor 5 out....
An urn contains three red marbles and four blue marbles. One marble is selected at random, its color is noted, and it is returned to the urn.
Another marble is then selected. What is the probability that the second marble drawn is red?
A.1/2
b:1/7
c:2/7
d:3/7
Answer:
i hope my answer help You
Step-by-step explanation:
the answe is d:3/7
SuRpRiSE shAwTYYyyyyyyyyyyyyyyyy
Answer:
HeyYyyYyYyT
Step-by-step explanation:
1 :)
round off 2409725 to nearest 10
Answer:
Hey!
Step-by-step explanation:
Your answer is 2409725.0
Best of luck ♥
Answer:
2409730
Step-by-step explanation:
Here is a list of numbers 6,7,2,4,6,9,5,3,3
Answer:
mean = 5.375, median = 5.5, mode = 3, 6, range = 6
Step-by-step explanation:
this is the only thing i could think of that i could use those numbers for
In ΔDEF, the measure of ∠F=90°, DE = 88 feet, and EF = 39 feet. Find the measure of ∠E to the nearest tenth of a degree.
Will give Brainliest!!!
What is the y=mx+b of the equation 5x−2y=16
How many cats and how many dog were adopted that weekend
Answer:
Need more info to answer.
T-Mobile has a family plan of four lines $120 additional lines are $10 each per month. If Jason wants to spend at most $175 per month on cell phone expenses, how many additional lines can he afford?
Answer:
he can afford 5 lines
Step-by-step explanation:
work here if needed
170 - 120 is 55
55 / 10 = 5.5 or 5
✨✨ Easy points for anyone who is good at finding slope! ✨✨
Answer:
- 4\3
Step-by-step explanation:
I think its -1 because there's not crooked line where you have to figure out the whole thing
Cook´s bakery is making 15 cakes . Each contains 2 cups of flour . How many cups of flour {f} are needed to make all the cakes
Answer:
A
Step-by-step explanation:
i got from USATestprep
In 10 years time a father will be twice as old as his daughter. 10 years ago he was six times as old as his daughter. How old is each now?
Answer: the daughter is 15 and the dad is 40
i think unless my math is wrong
Step-by-step explanation:
Danielle and Michelle visited a candy shop. Danielle bought 10 pounds of strawberry taffy and 1 pound of banana taffy for $46. Michelle bough 1 pound of strawberry taffy and 1 pound of banana taffy for $10. How much does each type of taffy cost?
Answer:
Banana Taffy: $6.00
Strawberry Taffy: $4.00
Step-by-step explanation:
$46 → $40 + $6
$40/10 = $4
$4 + $6 = $10
Three numbers add up to 210. The second number is 10 more than the first and the third number is 3 times the first. Find the numbers by modelling the problem using an algebraic equation.
Answer:
I. First number, a = 40.
II. Second number, b = 50.
III. Third number, c = 120.
Step-by-step explanation:
Let the three numbers be a, b and c respectively.
Given the following data;
Translating the word problem into an algebraic equation, we have;
a + b + c = 210
b = a + 10
c = 3a
Substituting the value of b and c into the equation, we have;
a + a + 10 + 3a = 210
5a + 10 = 210
5a = 210 - 10
5a = 200
a = 200/5
a = 40
To find the value of b;
b = a + 10
b = 40 + 10
b = 50
To find c
c = 3a
c = 3*40
c = 120
What is the solution to this equation?
1/2x-7=1/3(x-12)
x=
Answer:
[tex]x=18[/tex]
Step-by-step explanation:
By rearranging and multiplying by 6 at the end:
[tex]\frac{1}{2}x - 7 = \frac{1}{3}(x-12)\\\frac{1}{2}-7 = \frac{1}{3}x - 4\\\frac{1}{2}x - \frac{1}{3}x = -4 + 7\\(\frac{3}{6} - \frac{2}{6})x = 3\\\frac{1}{6}x = 3\\x = 3 \cdot 6 = 18[/tex]
13.) The leading scorer in your high school's hockey league finished the season with an average of 4 goals per game for 15 games. As the leagues
second leading scorer, you have an average of 4 goals per game for 14 games. You still have to play your last game. How many goals must you
score in the final game to overtake the leagues' leading scorer?
Answer:
5 goals
Step-by-step explanation:
4 goals per game for 15 games means a total of 60 goals in that season. You have 4 goals per game for 14 games meaning you have a total of 56 goals. To overtake the leading team you must score a minimum of 5 goals to become the leading scorer. (Double-check to make sure I am correct)
IX
IX
90
3
80
2
| 1
1
70
B.
C.
What is 8.478 in expanded form?
The expanded form of the given number is 8×1+4×1/10×7×1/100+8×1/1000 (option c)
What is an expanded form of numbers?We break up a number according to its place value and expand it to show the value of each digit, this process is called the expansion of the numbers.
Given that, we are asked to find the expanded form of 8.478,
The expanded form is :-
8 = 1 place = 8×1
0.4 = 1/10 place = 4×1/10
0.07 = 1/100 place = 7×1/100
0.008 = 1/1000 place = 8×1/1000
Therefore,
8.478 = 8×1+4×1/10×7×1/100+8×1/1000
Hence, the expanded form of the given number is 8×1+4×1/10×7×1/100+8×1/1000 (option c)
Learn more about expanded form, click;
https://brainly.com/question/17837892
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A company that manufactures memory chips for digital cameras used the formula c= 126\root(3)(n^(2))+ 1257 to determine the cost c, in dollars, of producing n chips. How much will it cost to produce 230 chips?
