Answer:
3 seconds
Step-by-step explanation:
Given the height modelled by the function
h(t) = -16t² + 16t + 96
The hit the water at h(t) = 0
0 = -16t² + 16t + 96
Divide through b y -16
0 = t² - t - 6
t² - t - 6 = 0
t² - 3t+2t - 6 = 0
t(t-3)+2(t-3) = 0
t+ 2 = 0 and t - 3 = 0
t = -2 secs and t = 3secs
Since t can't be negative, hence;
t = 3 secs
hence it will take 3 seconds until Devon hit the water
Find the vertex following equation: x2 + 10x = 21
A: (5, -46)
B: (-5, 54)
C: (-5, -46)
D: (5, 54)
Hurry!! Worth 10 points
Answer:
its D
Step-by-step explanation:
GIVING OUT BRAINLIEST FOR THE PERSON WHO HELPS ME FIRST!!!
question: Which expression uses the associative property to make it easier to evaluate <the numbers in the picture>
Answer:
d
Step-by-step explanation:
Please help ASAP! My parents are gonna kill me if I don’t pass this
Answer:
a ) 1 and 2
b ) less then 1
c ) less then 1
d ) less then 1
e ) 1 and 2
Step-by-step explanation:
The local movie theater has tickets at $8.75. If the theater made $78.75 dollars. How many tickets did it sell?
Answer:
The theater sold 9 tickets just multiple 8.75 by 9 and you'll get 78.75
The probability that a student chosen at random from a class has brown
hair is 7/13
The probability that they have ginger hair is 5/26
What is the probability that a student chosen from the class at random has
either brown hair or ginger hair?
Give your answer as a fraction in its simplest form.
Answer:
5/26+7/13
5/26+14/26
19/26
The probability that a student chosen from the class at random has either brown hair or ginger hair is 19/26.
Given that, the probability that a student chosen at random from a class has brown hair is 7/13 and the probability that they have ginger hair is 5/26.
Probability that student have either brown hair or ginger hair
= 7/13 + 5/26
= 14/26 + 5/26
= (14+5)/26
= 19/26
Therefore, the probability that a student chosen from the class at random has either brown hair or ginger hair is 19/26.
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Find the minimum and maximum possible areas for rectangles with the following measured areas.
12 km × 5 km
A.
51.75 km2, 66 km2
B.
57.5 km2, 68.75 km2
C.
51.75 km2, 68.75 km2
Answer:
I believe it's B correct me if I'm wrong
Answer:
C. 51.75 km2, 68.75 km2
Step-by-step explanation:
write 21/23 as a decimal rounded to the nearest tenth.
Answer:
0.9
Step-by-step explanation:
21 ÷ 23 = 0.913
Round to the nearest tenth = 0.9
Hope this helps!
helllllpppp the question is down here vvvv:
Answer:
Hope this helps
Step-by-step explanation:
I believe the ¨Five less than twice a number" is
[tex]2x-5[/tex]
¨Five times the sum of two numbers¨
[tex]5(x+y)[/tex]
¨The difference of 5 and a number squared¨
[tex](5-x)^{2}[/tex]
Answer:
First Box is: 5 - 2x
Second Box is: 5(x + y)
Third Box is: (5 - x)²
Step-by-step explanation:
The First one said "Five less than twice a number"
It said Five less than, meaning 5 (subtract)Twice mean 2 and a number means a VARIABLE. Answer: 5 - 2xThe second one said "Five times the sum of two numbers"
Five times means 5 (multiplication)Sum means adding and two numbers means two variables.Answer: 5(x + y)The thrird one said "The difference of 5 and a number, squared"
The difference means subtracting of 5a number means a variablesquared, means an exponent of 2Answer: (5 - x)²All of these answers seems to fit the descriptions.
A baseball fits snugly inside a transparent display cube. The length of an edge of the cube is 2.9 inches.
Is the baseball’s volume greater than, less than, or equal to cubic inches? Explain how you know.
1. A cube’s volume is 512 cubic units. What is the length of its edge?
2. If a sphere fits snugly inside this cube, what is its volume?
3. What fraction of the cube is taken up by the sphere? What percentage is this? Explain or show your reasoning.
Answer:
hi
Step-by-step explanation:
hi
Find the percent of change. Round to the nearest tenth, if necessary.
There were 795 runners registered for the marathon in 2015 and 1,208 in 2016.
PLLLLLEEEEEEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAASSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSEWEEEEEEEEEEEEEEEEEEEEEEEE
Answer:
51.9% increase
Answer:
The answer would be: 51.9% increase
Step-by-step explanation:
Have a blessed day
How many degrees does the polynomial 6c9 have
Answer:
None, there are no degrees/exponents
Step-by-step explanation:
Hope this is helpful :)
Answer:
has three terms. The first term has a degree of 5 (the sum of the powers 2 and 3), the second term has a degree of 1, and the last term has a degree of 0. Therefore, the polynomial has a degree of 5, which is the highest degree of any term
Sage and Tom started the month with the same number of talk minutes on their cell phones. Sage talked for 7 minutes with her dad. Tom talked for 4 minutes with a friend and 3 more minutes with his mom. Do Sage and Tom have the same number of talk minutes left on their cell phone plans? Write an algebraic expression to represent the number of minutes Tom has left. Question 1
Answer:
a. Sage and Tom have the same number of talk minutes left on their cell phone plans.
b. y = x - 7
Explanation:
Sage talked for 7 minutes with her dad.
Tom talked for 4 minutes with a friend and 3 more minutes with his mom which means he spoke for :
= 4 + 3
= 7 minutes
They both spoke for 7 minutes and therefore have the same amount of time left.
Algebraic expression:
Assuming the time Tom started with is denoted by x and the time he is left with is denoted by y.
The expression is:
y = x - 7
Select the correct answer.
What is the end behavior of this radical function?
Answer:
A.
Step-by-step explanation:
As x approaches positive infinity, f(x) approaches positive inifinty.
Does anyone know this?
helpppppp someone please
Answer:
x=22/5
Step-by-step explanation:
multiply by 3 on both sides
7+x=6x-15
x=6x-22
-5x=-22
*-1 on both sides
5x=22
x=22/5
Dana is planning to drive 400 miles from
New York to Boston and back. Dana's
hybrid car can travel 50 miles on 1 gallon
of fuel. Biodiesel fuel costs $4.45 per
gallon.
Part A: How many gallons of fuel does
Dana need to purchase for the 400-mile
trip? Explain your reasoning.
Part B: Dana can take a high-speed train
to Boston instead of driving. A round-trip
train ticket costs $95. Is it cheaper for
Dana to take the train or to drive? How
much cheaper? Explain your reasoning.
Answer:
A. 8 gallons
B. Drive by car is $59.4 cheaper than travel by train
Step-by-step explanation:
According to the scenario, given data are as follows,
Total drive = 400 miles
Total drive per gallon = 50 miles
Fuel cost per gallon = $4.45
A. So, Total fuel required to drive 400 miles can be calculated as follows,
Total fuel required = Total drive ÷ Total drive per gallon
By putting value, we get,
Total fuel required = 400 ÷ 50
= 8 gallons
B. Total cost if drive by car = 8 gallons × $4.45 = $35.6
Cost if travel by train = $95
Hence it is clearly shows that drive by car is much cheaper than travel by train.
Cost saved by travel by car = $95 - $35.6 = $59.4
So, drive by car is $59.4 cheaper than travel by train.
Which best describes the figure that is represented by the following coordinates?
A(-3, 4), B(3, 4), C(3,-2) and D(-3,-2)
у 4
a trapezoid
10-
8
a square
6
4
a rectangle
10
8
-6
-4
2
8
10%
-20
-2-
a parallelogram
- 10-
Find the sum of
(9c+8)+(5x-2)+(3y+7)
Answer:
9c + 5x + 3y + 13
Step-by-step explanation:
you can't combine any of the numbers wwith variables because the variables aren't the same but you can combine the other numbers (8, -2, 7)
8 - 2 = 6
6 + 7 = 13
put the equation back together but instead replace the 8, -2, and 7 with 13 giving you
9c + 5x + 3y +13
WHAT IS 7/8 OF 3456739352=
PLEASE HELP ME!!!!!
Can someone solve this?
Answer:
[tex]y = \frac{1}{9} x + 3\frac{1}{3}[/tex]
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
Answer:
y=1/9x+10/3
Explanation:
Find the negative reciprocal of the slope of the original line and use the point-slope formula to find the line perpendicular to y = − 9 x − 4 .
what is the y-intercept? B =
Answer:
60
Step-by-step explanation:
Since when x = 0 the corresponding value of y is 60. So, y-intercept (b) = 60
if a triangle has a area of 42 cm^2 and a base of 8 cm, what is the height?
show work plsssss
Answer:
The height would be 10.5 cm
Answer:
hb=10.5cm
Step-by-step explanation:
Area of triangle = 1/2(height x base)
The problem states that base is 8 cm greater than the height; therefore, base-8 = height.
A = 1/2(b*h)
42 = 1/2(b*[b-8])
84=(b^2-8b)
rearrange to
b^2 - 8b -84
factor to
(b+8)(b-14)
Therefore, b = -8 cm which makes no sense and
b = +14 cm
and height = 14-8 = 6
Check:
1/2(b*h) = area
1/2(14*6) = 1/2(84)=42
Suppose you are driving. You notice that after driving for 4 hours, you are 135 miles from Seattle. You continue driving, and calculate that after driving 8 hours you are 255 miles from Seattle. What is your rate? How far do you drive every 9 hours? How far from Seattle are you after driving for 17 hours?
Answer:
1,423
Step-by-step explanation:
Your average rate is 36.7 miles per hour over nine hours
What is Average speed?Average speed is defined as the ratio of the total distance traveled by a body to the total time taken for the body to reach its destination.
In the first 4 hours, you've averaged 33.75 miles per hour, but this is apparently not sustainable, since at 9 hours you've only averaged 36.7 miles/hour.
You continue driving, and calculate that after driving 8 hours you are 255 miles from Seattle. you've averaged 31.8 miles per hour
So the answer is that your average rate is 36.7 miles per hour over nine hours, although you did manage a faster burst of 50 mph for four hours once.
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Which of the following values are solutions to the inequality
-8 + 2x > -7?
I. – 3
II. - 8
III. 8
*asap please & thank you
Answer:
III. 8
Step-by-step explanation:
Substituting x with 8 we will have -8 + 2(8), which will be equal to 8, for -8 + 16 is 8. Hence, 8 > -7.
Can someone please help me ASAP it’s due tomorrow!
Answer:
m=22
Step-by-step explanation:
The angles of the triangle will be equal to 180.
m + 5m + m+26 = 180
Combine like terms
7m+26=180
Subtract 26 on both sides
7m=154
Divide by 7
m=22
Answer:
m=22
Step-by-step explanation:
Triangle has 180 degrees in total
m+5m+(m+26)=180
solve
6m+m+26=180
7m=180-26
7m=154
m=22
Monica is selling a house where she earns a commission equal to 3.25% of the final selling price of the house. If Monica sells a house for $256,000, what is her commission fee?
Answer:
$8320
Step-by-step explanation:
3.25% of 256000 = 0.0325 × 256000 = 8320
Suppose the fishing spot where kimi Werner goes spear fishing has an area of 946 square yards .If the fishing spot is 43 yards long, how wide is the fishing spot
Answer:
22 yards
Step-by-step explanation:
..
the sum of a number and 7 is -12
Answer:
Please put the rest of the answer
Step-by-step explanation:
Answer: 7?
Step-by-step explanation:
Find the measure of angle x.
A.33
B.40
C.45
D.57
Answer:
A) 33 is answer is sure and fix
Step-by-step explanation:
answer of this qn is 33 option A