Answer:
y+-2t^2
Step-by-step explanation:
In order to win her race, Millie doubles her running speed every minute. If she starts out running at 2 miles per hour, how fast will she be running after 3 minutes?
Answer: 4.2 kilometers after 3 minutes bc its 1.0729 kilometers after 1 minute. then it doubles every minute .
Step-by-step explanation: speed= distance divided by time method
The speed is the distance covered by an object at a particular time. Millie speed after three minutes will be equal to 16 miles per hour.
What is speed?The speed is the distance covered by an object at a particular time. Therefore, it is the ratio of distance and time.
[tex]\rm{Speed = \dfrac{Distance}{Time}[/tex]
Given that Millie doubles her running speed every minute. Also, her starting speed is 2 miles per hour. Therefore, her speed in different time period can be written as,
Speed after 1 min = 2 × 2 miles per hour
= 4 miles per hour
Speed after 2 min = 2 × 4 miles per hour
= 8 miles per hour
Speed after 3 min = 2 × 8 miles per hour
= 16 miles per hour
Hence, Millie speed after three minutes will be equal to 16 miles per hour.
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find the volume of the triangular prism
Answer:
Volume =270
Step-by-step explanation:
[tex]volume = ( \frac{1}{2} \times a \times b) \times h [/tex]
[tex] = ( \frac{1}{2} \times 3 \times 10) \times 18 \\ divide \: 2 \: and \: 10 \: by \: 2 \\ = (1 \times 3 \times 5) \times 18 \\ (15) \times 18 \\ = 270[/tex]
PLEASE HELP
Rihanna wants to find the distance, AB, across a river. She starts at point B and walks along the edge of the river 215 ft and marks point C. Then she walks 25 ft further and marks point D. She turns 85° and walks until her final location and marks point E. Point E, point A, and point C are collinear.
Answer:
She used the AA theorem because the two interior angles B and D are equal to 85 degrees. ABC and EDC are equal because they are vertically opposite angles.
ABC=EDC
ABC~EDC By AA criterion of similarity
AB/ED = AC/EC Because the corresponding sides of similar triangles are proportional.
Suppose (DE) =105 ft. Calculate the distance of (AB) . Show your work. Don’t forget to label your answer.
The answer is AB= 903
105=DE 25=DC 215=CB 903=AB
105/25= 4.2
4.2 * 215 = AB=903
Step-by-step explanation:
Which description best describes the graph?
A graph is shown. The line begins at the origin and moves in a downward curve through the points 1 comma -1, 2 comma -3, and so on
Group of answer choices
Nonlinear decreasing
Nonlinear increasing
Linear decreasing
Linear increasing
Answer: A) Nonlinear decreasing
The correct answer is A) Nonlinear decreasing.
Hope this helps =)
A phone company offers two monthly plans. Plan A costs $30 plus an additional $0.03 for each minute of calls. Plan B has no initial fee but costs $0.18 for each minute of calls. What is the cost when the two plans cost the same for a set number of minutes? (asap)
Answer: YE
Step-by-step explanation:
TOTALLY
You are surveying students to find out their opinion of the quality of food served in the school cafeteria. Which of the following samples would be random?
a. Only selecting students who are buying a hot lunch.
b. Selecting every third person who enters the cafeteria during the lunch period.
c. Only selecting students who bring their lunch.
d. Selecting every third person in the lunch line waiting to get food.
PLEASE HELP, 40 POINTS!!!!!!!!!!!!!!!!!!!
Remember that in Cynthia's physics class, she must turn in four lab reports. For each report, she earns extra credit if her percent error is less than 5%.
For her second lab report, she calculated the height of a building four times. She got the following four heights.
6.8 m
7.5 m
8.1 m
7.8 m
The true height of the building is 7 m.
What was Cynthia's percent error?
Remember: Take the average of the three measurements before calculating the percent error.
HELP ME ASAP PWESSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
[tex]Answer:[/tex]
range 23
Formulasubtract lowest number from greatest number.
ignore any inconsistent or other numbers.
Answer:
21
Step-by-step explanation:
29-8=21
Please help meee
I’d appreciate it
Answer: x = 1, -3
Solution in the picture
PLEASE HELP ME THIS IS URGENT EDMENTUM MATH STUFF, PLEASE ANSWER IF YOU KNOW.
Type the correct answer in the box.
The area of the figure is ____ square units.
Answer: 132 square units
Step-by-step explanation:
Area of a trapezoid:
a = top base; b = bottom base; h = height
[tex]A=\frac{a+b}{2}+h[/tex]
Find the bases and the height:
b: 21 (given)
h: 8 (given)
a: find from the bottom
need to find the only not given value by subtracting the values we know. (this might be a little confusing but I think it'll be easier if you look at the original picture)
21 - 9 - 3 = 9
add the new number with the given length of the top base
9 + 3 = 12
Substitute the values into the equation:
[tex]A=\frac{a+b}{2}+h\\[/tex]
[tex]A=\frac{12+21}{2}+8[/tex]
(I used a calculator to find it out)
Area = 132 square units
What is the answer ?
Answer:
a)3.17
Step-by-step explanation:
√101=10.04
10.04 ÷10
=3.17 you have to convert 10.04
On Derwin farm there is a total of 50 chickens and cows. If there are 118 legs, how
many chickens are there?
Chickens have 2 legs and cows have 4 legs.
Let x = # of chickens and let y = # of cows.
2x + 4y = 118
x + y = 50
x= 50 - y
2(50 - y) + 4y =118
100 - 2y + 4y = 118
2y = 18
y = 9
x = 41
in this equation you have to solve for x
Answer:
Step-by-step explanation:
tan 36° = x/40
x = 40 * tan 36°
x ≈ 29.1
28 is 160% of what number?
Answer:
28 is 160% of 17.5
Step-by-step explanation:
The value of number is, 17.5
That is, 28 is 160% of 17.5.
We have to give that,
To find 28 is 160% of which number.
Let us assume that,
A number = x
Hence, We can write as,
28 = 160% of x
Solve for x,
28 = 160/100 × x
Multiply by 100,
28 × 100 = 160x
2800 = 160x
160x = 2800
Divide into both sides by 160,
x = 2800/160
x = 280/16
x = 140/8
x = 70/4
x = 35/2
x = 17.5
Hence, The solution of the number is, 17.5
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CAN SOMEONE PLS HELP ME WITH THIS? ITS SO URGENT
(Pls show solution too)
Answer:
Step-by-step explanation:
t + u = 11 ----------- (1 )
10t + u = 10u + t - 9
10t + u - 10u - t = -9
10t - t + u - 10u = - 9
Combine like terms
9t - 9u = -9
Divide the entire equation by 9
[tex]\dfrac{9}{9}t-\dfrac{9}{9}u=\dfrac{-9}{9}[/tex]
t - u = -1 --------------(2)
Add equation (1) & (2) and so, u will be eliminated and we can find the value of t
(1) t + u = 11
(2) t - u = -1
2t = 10
t = 10/2
t = 5
Plugin t = 5 in equation (1)
5 + u = 11
u = 11 - 5
u = 6
The original number is 56
The product of 1/7
and its additive inverse is
Answer:
the additive inverse of 1/7 is -1/7
1/7 x -1/7 = -1/49
PLS HELP!! will give brainliest
Answer:
25, right, 5, 3, 4,
Step-by-step explanation:
5^2 = 5*5 = 25
the triangle has a right angle and is therefore a right triangle,
the sides of the squares that make up the triangle are length 5, length 3, and length 4
HELP me with this question PLEASE
Answer:
YES
Step-by-step explanation:
Why is the classmate correct?
The reason why the classmate is correct is that everything can turn 360 degrees. This means that a square, has to turn 360 degrees, and it does that by doing 90x4. This means that it has 90-degree angles, which turn 4 times. And that makes 360. That's how this is also correct. Because this classmate turned a figure 270 degrees clockwise, and also, 360-270=90, which means that turning that figure 90 degrees counter-clockwise will make it in that same position.
To check whether this is right or not, take an object, probably like a book. Then turn it 90 degrees to counter-clockwise, and note down the position, that the front of the book is now facing left, and the back of the book is now facing right. Then, turn it back to normal position, (back of the book facing you), then, turn it 3 times 90 degrees towards Clockwise, in that way, you can see, that the book turns in the same way it did when you did 90 degrees counter-clockwise!
I checked this, it's 176 words long.Thanks!
Answered by: FieryAnswererGT
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solve the equality
please help giving brainliest!!!
Step-by-step explanation:
you mean, solve the inequality ...
it works the same way as with equations.
6x >= 24
x >= 4 (after dividing both sides by 6)
the only thing different is when you multiply (or divide) both sides by a negative number. then you have to turn the inequality sign around (< becomes >, <= becomes >=).
but other than that it is all as with regular equations.
I need help with this! Please!
I WILL GIVE BRAINLIEST Suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model. A sample of 2500 bacteria selected from this population reached the size of 2781 bacteria in five hours. Find the hourly growth rate parameter.
Note: This is a continuous exponential growth model.
Write your answer as a percentage. Do not round any intermediate computations, and round your percentage to the nearest hundredth.
Answer:
y = a*b^t 2770 = 2500*b^4 b^4 = 1.108 b = 1.2597 y = 2500*(1.2597)^t Growth rate: # of bacteria increases at the rate of 26% per hour
Step-by-step explanation:
HELP ASAP
what is the median of the data set 24,31,12,38,12,15
12
19.5
24
23.5
Answer:
It should 19.5
Step-by-step explanation:
Did the math so it should be right
Solve for x. Round to the nearest tenth.
Answer:
7.2
Step-by-step explanation:
14 = c
12= b
√(c² - b²)
12 x 12 = 144
14 x 14 = 196
196-144 = 52
√(52) = 7.21110255093
Answer:
x ≈ 7.2
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² + 12² = 14²
x² + 144 = 196 ( subtract 144 from both sides )
x² = 52 ( take square root of both sides )
x = [tex]\sqrt{52}[/tex] ≈ 7.2 ( to the nearest tenth )
20 POINTS!!!!!!
A group of students is investigating how the addition of salt impacts the floatation of an egg in water. Four identical cups were taken for the experiment. The data of the experiment are shown below:
cup amount of water(mL) amount of salt(g) level of egg above water
1 450 0 sinks to bottom
2 450 68 2cm
3 450 136 3cm
4 450 272 4cm
which cup acts as a control group?
Answer:
Cup 1 acts as a control group.
Step-by-step explanation:
Control group: The group used in the experiment by the researchers in which no change in the variable is done. It is then set as a benchmark for the groups which are being tested.
We are given 4 groups which are being experimented for the flotation of an egg in water.
Since in Cup 1, there is no addition of salt
So, there is no change in the variables.
So, by definition of control group .
So, cup 1 acts as a control group since there is no change in the variable .
Hence, the correct answer is Option 1.
Cup 1 acts as a control group.
Determine the slope of the line for the linear equation below. Show all work for
credit.
2/3 - 4y = 8
Answer:
the slope is 0.
Explanation:
[tex]\hookrightarrow \sf \frac{2}{3} - 4y = 8[/tex]
[tex]\hookrightarrow \sf - 4y = 8- \frac{2}{3}[/tex]
[tex]\hookrightarrow \sf - 4y = \frac{24}{3} - \frac{2}{3}[/tex]
[tex]\hookrightarrow \sf - 4y = \frac{24-2}{3}[/tex]
[tex]\hookrightarrow \sf - 4y = \frac{22}{3}[/tex]
[tex]\hookrightarrow \sf y = \frac{22}{-12}[/tex]
[tex]\hookrightarrow \sf y = -\frac{11}{6}[/tex]
[tex]\hookrightarrow \sf y = -1\frac{5}{6}[/tex]
comparing with the formula: y = mx + b
where m is slope and b is y-intercept.
we found that there is no x. so the value of slope will be 0x. slope = 0
(MATH!!!) HELP!!! One endpoint of a segment is (-9,-1). The midpoint of the segment is (-2,4). What is the second endpoint of this segment?
Answer:
C; (5, 7)
Step-by-step explanation:
PLEASE HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
No, Luca is not correct. It's actually 100x larger.
Step-by-step explanation:
When you go to the left, the value of the digits increase.
9 in the tens place means 90, and 9 in the thousands means 9000.
In Gale's number, 9 is in the hundreths place.
In Luca's number, 9 is in the ones place.
9 in the hundreths means 9/100.
9 in the ones mean 9.
PLEASE DO THIS ASSAPPPPPOPOSNJSNDJENJD I WILL GIVE BRAINLY PLEASE ANSWER
A fair die is rolled once. What is the probability of rolling a six and an even number?.
What is the following quotient? StartFraction 1 Over 1 StartRoot 3 EndRoot EndFraction.
Answer:
On edge
Step-by-step explanation:
That's your answer