Answer:
Hi there! The answer is B: 45 Miles/Hour (or mph)
Step-by-step explanation:
When looking at speed signs in the U.S. they always use miles per hour, or MPH. Making it so the other options are incorrect!
Hope this helps!! :)
The most common unit on a U.S. speed limit sign is B. 45 miles/hour. Speed limits are displayed in miles per hour, not in units like miles per day, miles per second, or feet per second.
The value you would most likely see on a U.S. speed limit sign is B. 45 miles/hour. In the U.S., speed limits are almost always shown in miles per hour (mi/h). Therefore, options like 150 miles/day, .08 miles/second, or 25 feet/second are not standard measurements for speed limits on road signs.
To address the conversion exercises, converting 80 km/h to metric units of meters per second (m/s), you use the conversion factor 1 km/h = (1/3.6) m/s. So, 80 km/h equals approximately 22.2 m/s. The conversion to imperial units of miles per hour requires knowing that 1 km is roughly 0.621 miles, making 80 km/h about 49.7 mi/h.
Similarly, 100 km/h equals about 27.8 m/s (not an option here), and in miles per hour, it's approximately 62 mi/h. When converting from metric to imperial or vice versa, it's useful to remember that 1 m/s equals 3.6 km/h and roughly 2.2 mi/h.
A rectangle is inside a circle with a 5 cm radius.
What is the area of the shaded region?
Use 3.14 for π .
Enter your answer as a decimal in the box.
cm²
The area of a rectangle with dimensions of 8 cm by 6 cm is removed from the area of a circle with a radius of 5 cm.
Answer: 30.5 cm²
To get the the area of the rectangle all we have to do is:
Rectangle Area = 6 × 8 = 48 cm²
Same thing to the circle, multiply the radius and pi:
Circle Area = 3.14 x 5² = 78.5 cm²
We have to subtract the two areas to find the shaded area.
78.5 - 48 = 30.5 cm²
I hope this helps!
Answer: 30.5 cm².
I just took the test and plus it makes sense
Write an equation of the line that passes through a pair of points: (negative 2, 2), (5, negative 5)
To find the equation of the line through (-2, 2) and (5, -5), calculate the slope which is -1 and then use the slope-intercept form to find the y-intercept, which is 0. The equation of the line is y = -x.
Explanation:To write an equation of the line that passes through the points (-2, 2) and (5, -5), you need to determine the slope and the y-intercept of the line. First, calculate the slope (m) which is the change in y divided by the change in x: m = (y2 - y1) / (x2 - x1).
Using the points (-2, 2) and (5, -5), the slope calculation would be: m = (-5 - 2) / (5 - (-2)) = (-7) / (7) = -1. This indicates that the line has a negative slope.
Next, use the slope-intercept form of a line, which is y = mx + b, where m is the slope and b is the y-intercept. To find b, use one of the given points and the slope you calculated: 2 = (-1)(-2) + b, which simplifies to 2 = 2 + b, and thus b = 0.
The equation of the line is therefore y = -1x + 0, which simplifies to y = -x.
PLEASE HELP BY TODAY!!! NO WORK NEEDED!!!
In Triangle AngleMNP, what is the measure of Angle N?
1) 20 degrees
2) 46 degrees
3) 64 degrees
4) 76 degrees
Answer:
76
Step-by-step explanation:
Every angle times 20 and add it all up
Find the probability of choosing 3 blue marbles in a row if the marbles are replaced
Answer:
3/6
Step-by-step explanation:
you keep replacing them
COMPLETE
log798= ? ________________________
Answer:
2.90200289135
Step-by-step explanation:
i used a calculator and it gave me 2.90200289135 round it if you need.
A rectangular board has an area of A square inches. The width of the board
is 12 inches. Which equation represents x, the length of the board in inches?
Answer:
A=12x
Step-by-step explanation:
The equation for a rectangle is A=lw
So if you plug in your variables then you would have A=12x
Tobias sent a chain letter to his friends, asking them to forward the letter to more friends. The number of people who receive the email increases by a factor of
4
44 every
9.1
9.19, point, 1 weeks, and can be modeled by a function,
P
PP, which depends on the amount of time,
t
tt (in weeks).
Tobias initially sent the chain letter to
37
3737 friends.
Answer:
[tex]P(t)=37\cdot 4^{t/9.1}[/tex]
Step-by-step explanation:
The number of people who receive the email increases by a factor of 4 every 9.1 weeks.
This is an exponential growth of the form:
[tex]A=A_o(r)^{t/k}[/tex]
Where:
[tex]A_o =$Initial value\\r=Growth rate\\k=Growth Period\\t=time[/tex]
In this case:
[tex]A_o =37\\r=4\\k=9.1\:weeks[/tex]
Therefore at any time t, the function describing this scenario is:
[tex]P(t)=37\cdot 4^{t/9.1}[/tex] where t is in weeks.
How much energy would a 15,000 g block of ice need to absorb in order to
melt? The heat of fusion of ice is 333 J/g. Enter your answer to the nearest
whole number of kJ.
Answer:
The energy a 15,000 g block of ice will absorb in order to melt is 4995 kJ
Step-by-step explanation:
The question relates to the latent heat of fusion of ice, that is the heat absorbed by the solid ice to convert it to liquid water without changing its temperature.
The formula for the energy required to melt the ice is presented as follows;
Energy required = Mass, m × Latent heat of fusion, [tex]L_f[/tex], of ice
Hence, the mass, m, of the ice = 15,000 g
Latent heat of fusion, [tex]L_f[/tex], of ice = 333 J/g
Therefore;
Energy required = 15,000 g × 333 J/g = 4995000 J
Hence;
The energy a 15,000 g block of ice will absorb in order to melt = 4995000 J
1000 J = 1 kJ
1 J = 1/1000 kJ
Therefore, 4995000 J = (4995000 J)/(1000 J/kJ) = 4995 kJ.
Which gives;
The energy a 15,000 g block of ice will absorb in order to melt = 4995 kJ.
Solve y = x2 - 18 for x.
Answer:
Step-by-step explanation:
assuming that x2 = x², then the equation is y= x²-18
y= x²-18
y-18=x²
[tex]\sqrt{y-18}=\sqrt{x^{2} }[/tex]
[tex]\sqrt{y-18}= x\\[/tex]
so x = [tex]\sqrt{y-18\\}[/tex]
Plz help don’t have enough time
Answer: The first answer is the right one (1.25 + 0.75g is less than or equal to 20)
Step-by-step explanation:
He can’t spend more than 20 right, so his full cost of the shoes and game has to be less than (or equal to) the amount he has, which is 20.
Answer:
i say A
Step-by-step explanation:
because he has $20 and it has to be either less than or equal to 20 in order to play games
Drew’s dog weighs 24 lb 5 oz. How many ounces does drew’s dog weigh?
Answer:
Step-by-step explanation:
It weighs 389 pounds so the answer would be C.
3x-71=2x-50
I need the answer
Answer:
x = 21
Step-by-step explanation:
3x - 71 = 2x - 50
3x - 2x = -50 + 71
x = 21
Check:
3(21) - 71 = 2(21) - 50
63 - 71 = 42 - 50
-8 = -8
Can I get brainliest
Answer: [tex]x=21[/tex]
Subtract 2x from both sides
[tex]3x-1-2x=2x-50-2x\\x-71=-50[/tex]
Add 71 to both sides
[tex]x-71+71=-50+71\\x=21[/tex]
On Monday, Ken spent half of his money on a new game. The next day he earned $12 mowing lawns. He now has $32. How much money did Ken have before bought the game
Answer:
the anser is 40.0000001
A flashlight battery manufacturer makes a model of battery whose mean shelf life is three years and four months, with a standard deviation of three months. The distribution is approximately normal. One production run of batteries in the factory was 25,000 batteries. How many of those batteries can be expected to last between three years and one month and three years and seven months?
Answer:
17000 batteries
Step-by-step explanation:
Three years and one month is equivalent to the mean minus one standard deviation.
Three years and seven months is equivalent to the mean plus one standard deviation.
For a normal distribution, we know that 68% of population is between mean ± 1 sd, then can be expected that 25000*68% = 17000 of batteries last between three years and one month and three years and seven months
Find the product. (y 3)2 · y 7 y17 y12 y42 y13
(y^3)^2 * y^7
=y^13
the other answer missinterpreted the question, but seriously next time when there is an exponent signify it with "^"
A number is 9 less than negative 10 what is the number
A number is 7 more than negative 16 what is the number
5 teams will play in a tournament. Each team will play every other team once. How many games will be played
Answer:
1.-19
2.-9
3. 15
Step-by-step explanation:
-10-9=-19
7-16=-9
5+4+3+2+1=15
- Electricity City increases the price of televisions by 25%. If a television now sells for
$425, what was the original price?
Answer:
340
Step-by-step explanation:
Let x = original price
We increase by 25%
x+x*25% = new price
Change to decimal form
x+.25x = new price
Factor out the x
x(1+.25) = new price
x(1.25) = new price
x(1.25) = 425
Divide each side by 1.25
x = 425/1.25
x =340
The original price is 340
-10° i need help pleaseeee
Express in scientific notation. 0.0872
Answer:
8.72 x 10^-2
Step-by-step explanation:
which function will add the same number each time
A linear function adds the same number each time. It has a constant rate of change which means it adds or subtracts a certain amount at each step. An example of this would be the equation y = 3x + 2.
Explanation:The function described in the question which will add the same number each time is called a linear function. In mathematics, a linear function is a function that has a constant rate of change. This means that it adds or subtracts the same amount each time. For example, the equation y = 3x + 2 is a linear function. Every time you increase x by 1, y will increase by 3. Similarly, each time you decrease x by 1, y will decrease by 3. This is because the slope of a linear function is constant, indicating a consistent rate of change.
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A farmer wants to fence a rectangular area for her cows. The area is 200 yards by 423 yards. How many yards of
fencing does she need?
Answer:
1246 yards
Step-by-step explanation:
To find the yard of fencing she needs for he cows, we simply need to find the perimeter of the rectangular area.
The area is 200 yards by 423 yards.
The perimeter is the sum of all the sides of a rectangle and it is given by:
P = 2(L + B)
P = 2(200 + 423) = 2(623)
P = 1246 yards.
She needs 1246 yards of fencing.
What is the volume of the rectangular prism? show all work please
Answer:
V= Ab x h
= l x w x h
= 10.4mm × 5mm × 8mm
= 416 mm³
Answer:
416mm
Step-by-step explanation:
V=Bh
B=10.4*5=52
h=8
52*8=416
a and b are positive integers and a–b = 3. Evaluate the following:
Plz, help FAST!!!!
Answer:
[tex]3^{b-a}[/tex]
hope this helped!
The low temperature in Chicago was -3 °F. The low temperature in Milwaukee was -11 °F. Which statement is true?
-3 is greater than -11, so it was colder in Milwaukee.
-11 is greater than -3, so it was colder in Milwaukee.
-3 is greater than -11, so it was colder in Chicago.
-11 is greater than -3, so it was colder in Chicago.
Answer:
-11 is greater than -3, so it was colder in Milwaukee.
Step-by-step explanation:
-11 is greater than -3, so it was colder in Milwaukee. because -11 is less than -3 because it is more to the left which makes it less
Your soccer club wants to sell frozen yogurt to raise money for new uniforms. The club has the choice of the two different size containers shown. Each container costs the club the same amount. The club plans to charge customers $2.50. Which container should the club buy? Explain.
Answer:
they should buy the smaller one. the yogurt will cost money too. that is why other companys put ice, or empty spaces in cups.
Step-by-step explanation:
The soccer club should choose either Container A or Container B, as both options would generate the same profit of $1.00 per container sold, assuming the cost price is $1.50 and the selling price is $2.50.
To determine which container is more profitable, we need to calculate the profit from each option. For both containers, the selling price is $2.50.
Let's assume the cost of each container is $1.50, which includes the frozen yogurt, packaging, and other associated costs.
Container A Profit:
Selling Price: $2.50
Cost Price: $1.50
Profit per Container: $2.50 - $1.50 = $1.00
Container B Profit:
Selling Price: $2.50
Cost Price: $1.50
Profit per Container: $2.50 - $1.50 = $1.00
As we can see, both Container A and Container B would yield the same profit of $1.00 per container, given the assumed cost price and selling price.
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PLS HELP NOW
What is the area of the rectangle, in square feet?
9 ft
20 ft
A.29
B.58
C.120
D.180
Answer:D,180
Step-by-step explanation:
Answer:
9 x 20ft = 180
If one of those values 8ft and 20ft is the diagonal then we deduct the square of thise numbers being √400 - √81 = √309 and find √309 square of 17.57ft
17.57 x 9 = 158.13
so √158.12 = 12.57
and √162 = 12.72
But your question was just a case of finding how to do area and for that we use L x W to find area
A = 9 x 20 = 180ft^2
Step-by-step explanation:
Find the value for x to the nearest tenth.
Answer:
6.2
Step-by-step explanation:
the real answer is 6.24896, but its rounding to the nearest tenth.
Number eight, graph each question
Answer:
(1,3)
Step-by-step explanation:
x would be counted as (1,1) therefore, moving 1 number to the right, and 1 number up.
The local cell phone tower service for your provider has the best service when you are 15 miles from the tower, if the school is 12 miles east and 11 miles south then will you receive the most bars?
Answer:
No, since the total distance to the cell tower is 16.28 miles, which is farther away than the distance needed to get the best possible service. You are 1.28 miles too far.
Step-by-step explanation:
you have a triangle with sides 12 miles and 11 miles long, so all you need to do is calculate the hypotenuse:
h² = 12² + 11²
h² = 144 + 121
h² = 265
h = √265
h = 16.28 miles
There are 9 children in a class who take the bus to school, and there are 15 total children in the class. What percentage of the children take the bus to school?
Answer:
60%
Step-by-step explanation:
(9/15)*100=60
The percentage of the children take the bus to school will be 60%.
What is mean by Percentage?
A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
To Calculate the percent of a number , divide the number by whole number and multiply by 100.
Given that;
There are 9 children in a class who take the bus to school.
And, There are 15 total children in the class.
Now,
Since, Total children in class = 15
And, There are 9 children in a class who take the bus to school.
So, The percentage of the children take the bus to school will be calculated as;
Percent = (Children to take bus to school / Total children) x 100
= (9 / 15) x 100
= 60%
Thus, The percentage of the children take the bus to school will be 60%.
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