Answer:
1/2 ÷ 0.25 = 2
Step-by-step explanation:
Answer:
4 i hope i helped
Step-by-step explanation:
What is the slope of the line represented by the equation y=-1/2x+ 1/4 ?
a. -1/2
b. -1/4
c. 1/4
d. 1/2
Answer: A. -1/2
Step-by-step explanation:
The ratio of the measures of two
complementary angles is 7:8. What is the
measure of the smaller angle?
Answer:
The smaller angle is 42 degrees
Step-by-step explanation:
I did 7+8 = 15 and then 90/15 and got 6 so 7x6 is 42. trust me this works
Using a standard deck of playing cards, what is the probability of drawing a four, replacing the card, and then drawing a club?
A. 1/26
B. 1/51
C. 17/52
D. 1/52
Answer:
D. 1/52
Step-by-step explanation:
There are four 4s in a deck of 52 cards, so there is a 4/52 chance of drawing a four on the first try.
Once you replace the card in the deck, the simulation starts over, meaning the events are independent and you are once again drawing from 52 possible cards.
Now, when you draw the club, the chance of this is 13/52 because there are 13 clubs in a deck.
Because events are independent, multiply the probabilities to determine the chance that both events occur.
[tex]\frac{4}{52} * \frac{13}{52}[/tex] = 1/52
A healthy human heart beats about 1,533,000 times a year. A sparrow's heart beats about 2,417,760,000 times in a year. About how many times faster does the sparrow's heart beat compared to the human heart? Show your work.
Answer: 1577.14
Step-by-step explanation:
From the question, we are informed that a healthy human heart beats about 1,533,000 times a year and that a sparrow's heart beats about 2,417,760,000 times in a year.
To calculate how many times faster the sparrow's heart beat compared to the human heart, we divide the sparrow's heartbeat in a year by the humans heartbeat in a year. This will be:
= 2,417,760,000 / 1,533,000
= 1577.14 times
please help i’ll give 14 points
Moutain climber A is at altiude of 250 feet and is descending at a rate of 30 feet per hour. Moutain climber B is at an altitude of 400 feet and is descending at a rate of 50 feet per hour. In how many hours will the altitude of moutain climber B be lower than the altitude of moutain climber A?
Answer:
the altitude of mountain climber b will be lower than the altitude of mountain climber A with number of hours greater than 7.5hrs.
Step-by-step explanation:
This talks about equalities in math,
We are told about Moutain climber A is at altiude of 250 feet and is descending at a rate of 30 feet per hour, this can be interpreted as
250 - 30h
Moutain climber B is at an altitude of 400 feet and is descending at a rate of 50 feet per hour, this can be interpreted as
400 - 50h
We were now asked how many hours the altitude of mountain climber b be lower than the altitude of mountain climber A, we can interpret this as
(400 - 50h) < (250 - 30h )
We can collect the like terms here
-50h + 30h < 250 - 400
-20h < - 150
The negatives sign can cancelled out, we have
Note that multiplying or dividing by a negative THE INEQUALITY SIGN MUST BE FLIPPED
20h > 150
h > 150/20
h > 7.5
Therefore, the altitude of mountain climber b will be lower than the altitude of mountain climber A with number of hours greater than 7.5hrs.
A store has a sell. You can purchase 3 cds for 45$. Which ratio describes the unit rate
Answer:
$15 for 1 CD or 15:1
Step-by-step explanation:
You just divide 45 by 3 and get your answer for value per CD. :)
what is the solution of −2 < x/4
Answer:
Inequality Form: x > −8
Interval Notation: (−8, ∞)
Step-by-step explanation:
−2 < x/4
Rewrite so x is on the left side of the i nequality.
x/4 > −2
Multiply both sides of the equation by 4.
x > −2 ⋅ 4
Multiply −2 by 4.
x > −8
The result can be shown in multiple forms.
Inequality Form:
x > −8
Interval Notation:
(−8, ∞)
Select all of the true statements. Group of answer choices π is the constant of proportionality relating the diameter of a circle to its circumference. π is the area of a circle of diameter 1. π is the circumference of a circle of radius 1. π is the circumference of a circle of diameter 1. π is the constant of proportionality relating the radius of a circle to its area. π is the area of a circle of radius 1.
Answer:
π is the constant ...... circle to its circumference
π is the area .... radius 1
Step-by-step explanation:
π is a mathematical constant, defined as ratio of circle's circumference to its diameter.
π is area of circle of radium 1. Area = π r^2 = π (1)^2 = 1
WILL MARK BRAINIEST! find the x intercept of each line defined below compare their values. NOTE- please state what the intercept of line a and b is as well as which one is greater. Thanks
Answer:
im pretty sure its 2
the intercept would be -2/2
Step-by-step explanation:
The question is, "Enter an equation in the form y=mx + b that represents the function described by the graph." Can I get some help please? :)
Answer:
y= 2x - 2
sorry, if it is not right it should be a reasonable answer.
Solve 1=4|x-2|+2
Help please
Answer:
No solution
Step-by-step explanation:
1=4|x-2|+2
-4|x-2| + 1 = 2
-4|x-2| = 1
False for every value of x
Since absolute value gives only a positive value, the -4 would always make that number negative which doesn't work
helppp asap thankssss
Answer:
Step-by-step explanation:
reflect across the x-axis, translate 2 units to the left, translate up 4 units
Find the coefficient for 3f+5
Answer:
3f5 Changes made to your input should not affect the solution:
(1): "f5" was replaced by "f^5". final result
3f5
Step-by-step explanation:
four glasses of milk and 2 snack bars have a total of 68 carbohydrates (carbs), and 2 glasses of milk and 3 snack bars have a total of 62 carbs. Determine how many carbs are in one glass of milk and in one snack bar.
Answer: One glass of milk = 10 carbs
Answer: One snack bar = 14 carbs
Step-by-step explanation:
Four glasses of milk and Two snack bars.
4 x 10 = 40
2 x 14 = 28
40 + 28 = 68
Two glasses of milk and Three snack bars.
2 x 10 = 20
3 x 14 = 42
20 + 42 = 62
Please hurry
1. Find the measures of the angles if m∠B=3y and m∠E=6y-12.
2. Find the measures of the segments if AC=7x+5 and DF=5x+9.
answer boh plz
Answer:
if the two angles/two segments are supposed to be set = to each other, then
3y=6y-12
-3y=-12
y=4
7x+5=5x+9
2x=4
x=2
cuantos lados tiene un polígono regular si su ángulo central mide 24 grados
Answer:
D
Step-by-step explanation:
A circle has a diameter of 8 centimeters, as shown below.
8 cm
What is the area, in square centimeters, of the circle?
Answer:
12.6cm²
Step-by-step explanation:
Diameter of circle = 8cm
Unknown:
Area of the circle = ?
Solution:
The area of the circle is given by the expression below;
Area = π r²
r is the radius of the circle
Since diameter is 8cm, radius = 4cm
Insert the parameters;
Area of circle = π x 4cm = 12.6cm²
Answer:50.3
Step-by-step explanation: i got it right
Point R is at (4, 1.5) and Point T is at (4, 2.9) on a coordinate grid. The distance between the two points is
If answered get 10 points
Answer:
If Point R is at (4, 1.5) and Point T is at (4, 2.9) on a coordinate grid. The distance between the two points is 1.4
6th grade math i mark as brainliest
step (1) 32+23*4 =124 step (2) 9+23*4= 101 step (3) 9+9*4=45 step 4 9+35=44
Step-by-step explanation:
Tannis's first machine could throw a car 272727 meters. She studied her first machine and built a better one. Her second machine could throw a car 777 times as far.
How far does the second machine throw a car?
Answer:
The rate of change of the distance between the cars at that instant is 5.46 meters per second
Step-by-step explanation:
Speed of first car = 7 m/s
Speed of second car = 3 m/s
At instant, distance of first car from intersection = 5 meters
distance of second car from intersection = 12 meters
Therefore, we have
Distance between both cars at intant = √(12² + 5²) = 13 m
Rate of change of distance is given by;
2ddd/dt = d(x² + y²)/dt = 2xdx/dt + 2ydy/dt
= 26dd/dt = 2×5×7 + 2×12×3 = 142
dd/dt = 142/26 = 5.46 m/s.
That is the rate of change of the distance between the cars at that instant = 5.46 meters per second.
I’m stuck. What’s a reciprocal?
Answer:
When flipping a fraction it is called the reciprocal
Step-by-step explanation:
what is the slope of the line
Answer:
-3
Step-by-step explanation:
Slope is rise over run or the change in y over change in x. So to find the slope count the difference from one point to the next, for example (0,4) and (1,1). In this case, the y-value decreases by 3, so -3, and the x-value increases by 1, so +1. Which would be -3/1 or just -3. One way to visually check is to remember that slopes less than -1 or greater than 1 make the line steeper and negative slopes make the graph decrease from left to right.
Describe the transformations that were applied to the parent function
f(x)=|x|-5
Answer:
Shifted 5 units down
Step-by-step explanation:
The graph below shows the cost of pens based on the number of pens in a pack. What would be the cost of one pen?
$0.57
$1.75
$5.50
$6.50
Answer:
$1.75
Step-by-step explanation:
Honestly, you don't really have to pay attention to the other numbers or ratios on the graph until you think you found your answer. Pay attention to whichever ratio you choose and follow these steps:
1. Identify which number is the cost and which is the amount of pens bought
2. Set it up as a division problem by using the cost and the dividend and the amount of pens as the divisor
3. After you have your answer, plot your ratio of 1:(your product) and if the line that was graphed is straight, you are correct.
PS. I used the ratio (2:3.5) to solve this problem
A school raises money by selling 0.5 bags of nuts.
They buy:
-30 pounds of cashews
-15 pounds of almonds
-5 pounds of peanuts
How many 0.5 pound bags can they make?
Answer:
100 bags
Step-by-step explanation:
Answer:
100 bags
Step-by-step explanation:
You're going to want to multiply each amount of pounds the bags are by two. So 30 × 2 is 60. 15 × 2 = 30. 5 × 2 = 10.
60 + 30 = 90
90 + 10 = 100
Calculate the mean of: 4.6, 3, 8.1, 9, 12, 3, 9, 3.5, 7, 3.
6.22
5.8
9
3
Answer:
7.3
Step-by-step explanation:
The mean of 4.6, 3, 8.1, 9, 12, 3, 9, 3.5, 7, 3. 6, 22 , 5.8 , 9 , 3 is 7.3
Answer:
5.8
Step-by-step explanation:
First put all the numbers in order from least to greatest.
3, 3, 3, 3.5, 4.6, 7, 8.1, 9, 9, 12
There are two middle numbers, 4.6 and 7. Average them to get 5.8.
Please help me I acc don’t know it
Identify if first number is divisible by the second number, and if so, the reason why.
Is 94,032 divisibly by 9?
A. No
B. Yes, because the sum of the digits is 9 + 4 + 0 + 3 + 2 = 18, which is divisible by 9.
C. Yes, because the value of the first digit is 9, which is divisible by 9.
Answer:
yes b
Step-by-step explanation:
m= -(4+m)+2
solve for m
Answer:
m = -1
Step-by-step explanation:
m = - (4 + m) + 2
m = -4 - m + 2
m = -2 - m
+m +m
2m = -2
/2 /2
m = -1
Hope this helps!
Answer:
m=-1
Step-by-step explanation:
m = - ( 4 + m ) + 2
m - 2 = - ( 4 + m )
m - 2 = - 4 - m
m + m = - 4 + 2
2 m = - 2
m = - (1/2)
m = - 1