so with what do u need help?
A ball is kicked 4 feet above the ground with an initial vertical velocity of 51 feet per second. The function h(t)=−16t²+51t+4 represents the height h (in feet) of the ball after t seconds. Using a graph, after how many seconds is the ball 28 feet above the ground? Round your answers to the nearest tenth.
Answer:
0.6 seconds to 2.6 seconds
Step-by-step explanation:
From the graph the ball reaches 28 feet after 0.574 seconds
and doesn't fall below that until 2.614 seconds
0.574 rounded is 0.6 seconds
2.614 rounded is 2.6 seconds
Answer:
0.57 seconds (see graph)
Step-by-step explanation:
h(t) = -16t² + 51t + 4
h(t) = 28
28 = -16t² + 51t + 4
0 = -16t² + 51t - 24
t1 = 2.613573055
t2 = 0.5739269455 (pick this answer)
The ball will be 28 feet above the ground after 0.57 seconds
Harper is getting a new rug in her bedroom. Her bedroom is in the shape of a rectangle with a length of 9 feet and a width of 14 feet. If the rug cost $1.75 per square foot, how much will it cost to purchase the rug?
Answer:
D) 220.50
Step-by-step explanation:
9x14 = (9x9)+(9x5) =126 126 x 1.75 (.75x126) + 126 = 220.50
AKA: 9x14 = 126 126 x 1.75 = 220.50
help please with math
Answer:
If they want irregular fractions its
1= 14/4 . 2= 11/2 3= 14/8
4= 21/4 . 5= 27/6 . 6= 125/13
7= 61/9 . 8= 69/9 . 9= 84/8
If they just want the few simplified then
1= 3 1/2
3= 1 3/4
5= 4 1/2
8= 7 2/3
9= 10 1/2
Step-by-step explanation:
rew wants to build a square sandbox with an area of 324 square feet. What is the total length of wood Drew needs to make the sides of the sandbox?
Answer: 44
Step-by-step explanation:
1 7/10 - 1 1/2
it has to be a fraction and no links
find the area of a semi circle with radius 12cm give your answer in terms of pi
Answer:
72pi
Step-by-step explanation:
The formula for the area of a circle is pi*r^2
Since three radius is 12, then it’s pi*12^2
pi*12^2= 144 x pi but that’s the area of a whole circle so divide by 2 and you get:
72pi
Answer:
226.195 cm²
In terms of pi:
A = (π · 12²) ÷ 2
Step-by-step explanation:
A = πr²
A = π · 12²
A = π · 144
A = 452.39
452.39 ÷ 2
226.195
how many 1/2 cups are needed to fill the gap in this prism
A. 2
B. 4
C. 6
D. 8
have a great day!♡
Answer:
I don't know what prism. once you see this put it in the description of this
Step-by-step explanation:
The temperature in degrees Fahrenheit was recorded every two hours starting at midnight on the first day of summer. The data is show in the table.
Which type of graph would best display the change in the temperatures throughout the day?
bar graph
line graph
line plot
stem and leaf plot
Write the equation of the line in fully simplified slope-intercept form.
Answer:
[tex]y=-\frac{1}{4} x-6[/tex]
Step-by-step explanation:
The slope-intercept form is [tex]y=mx+c[/tex], where m is the slope of the line and c is where the line crosses the [tex]y[/tex]-axis.
To calculate [tex]m[/tex] we can use the formula [tex]m = \frac{dy}{dx}[/tex] where [tex]dy[/tex] is the difference in [tex]y[/tex] between two points and [tex]dx[/tex] is the difference between [tex]x[/tex].
Information we can get from the graph given: [tex]c=-6[/tex]. Since [tex]c[/tex] is the point at which the line crosses the [tex]y[/tex]-axis.
To find [tex]m[/tex] let's get two points from the graph.
Point 1: [tex](4,-7)[/tex]
Point 2: [tex](8,-8)[/tex]
Now use the equation [tex]m = \frac{dy}{dx}[/tex].
[tex]m = \frac{-7 - (-8)}{4-8} = -\frac{1}{4}[/tex].
Now we have [tex]m[/tex] and [tex]c[/tex], let's put them back into the general equation.
[tex]y=-\frac{1}{4} x-6[/tex]
Find the volume of this regular solid. 5 yd 4 yd 8 yd
Answer:
160 yd
Step-by-step explanation:
Volume = L * W * H
V= 5 * 4 * 8
V= 160 yd
What equation is being modeled below? *please help* fast*
Answer:
y = -3x + 21
Step-by-step explanation:
Answer:
4+6-3=7 I think
Step-by-step explanation:
35% of what number is 35
Answer:
Answer: 100
Step-by-step explanation:
A package of colored paper contains 20 pieces of yellow paper. This represents 25% of the total pieces of colored paper in the package. How many total pieces of colored paper are in the package?
Answer: 80
Step-by-step explanation:
80x 0.25=20
Bertha Devys had the oil changed in her company car. She had a $3.00-off coupon from the Grease Monkey oil change service. The regular
price of an oil change is $29.99. What is the final price?
Answer:
your answer is $26.99
Step-by-step explanation:
In the following problem, what is the part? What number is 40% of 90?
90
40%
a variable
Answer:
36
Step-by-step explanation:
40% of 90 is 36
Hope this helps
Express sin F as a fraction in simplest terms.
D
17
10
E
F
What is the inter quartile range (IQR) of the following data set?
Answer:
14
Step-by-step explanation:
Rearrange your numbers in order from least to greatest
18, 20, 22, 22, 25, 27, 29, 31, 34, 36, 36, 38, 41, 48
the middle is between 29 and 31
the middle of the first half is 22,
the middle of the second half is 36
the IQR = 36-22= 14
The MEAN is _______________ a value in the data set
A) sometimes
B) always
C) never
Answer:
B
Step-by-step explanation:
seven hamburgers and four sodas cost $27.35. Four hamburgers and five sodas cost $18.75
I need to find the equation of each sentence.
WILL MARK BRAINLIEST (or however you spell it)
Answer:
equations:
7x + 4y = 27.35
4x + 5y = 18.75
Step-by-step explanation:
x = burgers
y = sodas
---------------------------------
7x + 4y = 27.35
4x + 5y = 18.75
Which expressions are equivalent to Negative 9 (two-thirds x + 1)
Answer:2-3x+1(-9)
Step-by-step explanation:
-9(2-3x+1) can also be written as 2-3x+1(-9)
EMERGANCY! Super confused Explain pls.
If the angles 2xº and 4yº
are
complementary, find the value of x + 2y.
Answer:
Solution given:
the angles 2xº and 4yºare complementary
so
2x+4y=90°
dividing both side by 2we get
x+2y=45°
the value of x + 2y is 45°.
I need this quick guys plz
Answer:
circumference = 2πr = 2 × 3.14 × 15 = 94.2cm
Option C
Answer:
The answer is C
because circumference = 2[tex]\pi[/tex]r
pls help, 'll mark the brainliest. SOS
Answer:
Which one do you need the answer for
Step-by-step explanation:
(please answer quick its pretty easy)
Divide.
−36÷(−4)
Answer 9
Hope this helps!!
Answer: 9
Steps:
[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{-b}=\frac{a}{b}[/tex]
[tex]=\frac{36}{4}[/tex]
[tex]\mathrm{Divide\:the\:numbers:}\:\frac{36}{4}[/tex]
=9
Hope This Helps!
Which fraction is equivalent to —(7/8)?
The answer should be -14/16
What is the volume of this triangular prism?
A. 576 ft3
B. 288 ft3
C. 34 ft3
D. 29 ft3
Answer:
576
Step-by-step explanation:
4x16=64
64x9=576
(x2–5x+6)(x-1) dx
Sol
x-2
Step-by-step explanation:
[tex]y =( {x}^{2} - 5x + 6)(x - 1) \\ y =( {x}^{3} - 5 {x}^{2} + 6x - {x}^{2} + 5x - 6) \\ \frac{dy}{dx} = 3 {x}^{2} - 12x + 11[/tex]
B
Diagram NOT
accurately drawn
2
489
D
E
A, Band D are points on a circle, centre O.
CDE is a tangent to the circle.
Angle ADO = 48°
Work out the size of angle ABD.
(4 marks)
please help asap ill give brainliest
Answer:
∠ ABD = 42°
Step-by-step explanation:
∠ ODC = 90° ( angle between tangent and radius )
∠ ADC = 90° - 48° = 42°
The angle between a tangent and a chord is equal to the angle in the alternate segment, that is
∠ ABD = ∠ ADC = 42°
7. Gloria took out a loan for $8000. If she was given the loan with a 4.5%
interest rate compounded monthly for 5 years. How much interest did she
have to pay over the 5 years? Round to the nearest whole number?
4+6=3
4.5=3
77.35.52.=5