Answer:
20%
Step-by-step explanation:
25-20=5
25/5=5
100/5=20
what is the answer of -13=15+d ?
Answer:
d= -28..................
An engineer is designing a fountain that shoots out drops of water. The nozzle from which the water is launched is 3 meters above the ground. It shoots out a drop of water at a vertical velocity of 14 meters per second. Function h models the height in meters, h, of a drop of water t seconds after it is shot out from the nozzle. The function is defined by the equation h(t)=−5t2+14t+3. How many seconds until the drop of water hits the ground?
Answer:
After 3 seconds
Step-by-step explanation:
Given
[tex]h(t) = -5t^2 + 14t + 3[/tex]
Required
Time the drop will hit the ground
When the drop hits the ground,
[tex]h(t) = 0[/tex]
So, we have:
[tex]0 = -5t^2 + 14t + 3[/tex]
Rewrite as:
[tex]5t^2 - 14t - 3 = 0[/tex]
Expand
[tex]5t^2 + t - 15t - 3 = 0[/tex]
Factorize
[tex]t(5t + 1) -3(5t + 1) = 0[/tex]
Factor out 5t + 1
[tex](t -3)(5t + 1) = 0[/tex]
Split
[tex]t -3 = 0[/tex] or [tex]5t + 1 = 0[/tex]
Solve for t
[tex]t = 3[/tex] or [tex]5t = -1[/tex]
Time cannot be negative.
So:
[tex]t = 3[/tex]
Can someone plz help me with this one problem plzzzzz!!! Explain
Answer: 7 yards
Step-by-step explanation:
HELP ME PLEASE! I need to figure out the median and Interquartile of : 0,0,0,1,1,3,3,3,4,4,4,6,6,7,7,7,8,8,9,10
Answer:
The median is 8
Step-by-step explanation:
4+4=8
It is 8 because the middle numbers there are 4 and 4
Need help take your time and thx
Answer:
-1 and -3
Step-by-step explanation:
(x+1) (x+3)
BRAINIEST ANSWER
:)) please help me out!
Answer:
1,296 cm³Step-by-step explanation:
Now the formula to find the volume of a pyramid is [tex]V=\frac{lwh}{3}[/tex]
We know the length, width and height so let´s get started!
First let´s multiply to find the base. To do so, we will do length × width.
18 × 18 = 324
Now multiply by the height
324 × 12 = 3,888
After you multiply all length, width and height, we need to divide by three.
3,888 ÷ 3 = 1,296
Before we finish, we need to do the last two steps
First we need to add the measurement unit which is centimetres or cm.
We also need to add ³ since it is volume
1,296 cm³ is our final answer
16. On June 8, 1992, a crop circle with an 18-meter radius was found in a wheat field near Szekesfehervar,
43 miles southwest of Budapest, Find its circumference,
a. 112.06
b. 113.04 m
C, 124,45 m
d116,34 m
Factor the expression completely. 60x^3+50x^5
Answer: 10x^3(6+5x^2)
Mr. Winkleman , a professional wine taster, made $32,800 last year . This year he had a raise of $2,132 . what was the percent of the raise? PLEASEE ALSO show work , i will try and mark brainliest
Answer:
0.65
Step-by-step explanation:
Answer:
Step-by-step explanation:
2,142/32,800 ≈ 0.065 = 6.5%
What is the value of 3/5 divide 2/5
A. 6/25
B. 2/3
C. 6/5
D. 3/2
E.25/6
The dimensions of a triangular prism are shown in the diagram.
What is the volume of the triangular prism in cubic centimeters?
A
1,360 cm3
B
C
D
408 cm3
1,632 cm3
816 cm3
Answer:
B
Step-by-step explanation:
your welcome
PLEASE HELP!
Use the bar graph to find the relative frequency of the event.
The relative frequency of spinning a 6 is ___
i think its 7
Hope this helps
-scav
Answer: 14%
Step-by-step explanation:
what is the mean of 83, 92,47, 78, 80?
What is the radius of the circle with equation (x+1/5)^2+(y-2/5)^2=1/25
Answer:
r = [tex]\frac{1}{5}[/tex]
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
(x + [tex]\frac{1}{5}[/tex] )² + (y - [tex]\frac{2}{5}[/tex] )² = [tex]\frac{1}{25}[/tex] ← is in standard form
with r² = [tex]\frac{1}{25}[/tex] , then
r = [tex]\sqrt{\frac{1}{25} }[/tex] = [tex]\frac{1}{5}[/tex]
The radius of the circle is, r = 1/5 units.
What is equation of circle?An equation of circle with center (h, k) and radius 'r' is,
(x - h)²+(y - k)² = r²
For given example,
the equation of the circle is, (x+1/5)^2+(y-2/5)^2=1/25
By comparing with standard equation of circle (x - h)²+(y - k)² = r²,
we have h = -1/5, k = 2/5 and r² = 1/25
We need to find the radius of the circle,
r² = 1/25
By taking square-root,
we have r = 1/5 units
Therefore, the radius of the circle is r = 1/5 units.
Learn more about equation of circle here:
https://brainly.com/question/10618691
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Brad and sally made a total of 31 cakes for the school bake sale. Sally made 7 fewer cakes than brad. How many cakes did brad make?
Answer:
brad made 19 cakes, sally made 12
Step-by-step explanation:
help with this ill give brainlest
You have 4 pounds of peanuts. You want to put it in the bags so that there is 2/3 pounds in each bag. How many bags can you fill ?
Answer:
6 bags
Step-by-step explanation:
This problem is essentially asking how many ([tex]\frac{2}{3}[/tex]) peanut bags can one fill with ([tex]4[/tex]) pounds of peanuts. This problem can be solved by divided ([tex]4[/tex]) by ([tex]\frac{2}{3}[/tex]). Set up the problem,
[tex]4[/tex] ÷ [tex]\frac{2}{3}[/tex]
In order to divide by a fraction, one must change the multiplication sign to a division sign, then take the reciprocal of the second number, the fraction. In order to take the reciprocal of a fraction, switch the numerator (number on top) and the denominator (number on the bottom).
[tex]4 * \frac{3}{2}[/tex]
Multiply,
[tex]\frac{12}{2}[/tex]
Simplify,
[tex]6[/tex]
Pls explain so I can show my work!!
Answer:
He spends 20 percent of his free time reading so I think its 1 hour and 48 minutes.
Answer the question in the picture?
PLZZ HELPP ILL GIVE BRAINLIST
Answer:
C- 8.33 cars/h
Step-by-step explanation:
We know she washed 50 cars during 6 hours. To know how many she did per 1 hour, we must do the following:
50cars/6h = x/1hx represents the number of cars she washed per hour.
Now, solve it with Cross-multiplication.
50×1 = 6x50/6 = 6x/68.33 = xHope this helps!!
Find the area and circumference of a circle with the
radius of 8.5 cm.
Answer:
Area: 226.98
Circumference: 53.41
Step-by-step explanation:
Answer:
Area = 72.25π ≈226.98 cm
Circumference = 17π ≈ 53.41 cm
Step-by-step explanation:
Area formula for a circle = πr²
Circumference formula = 2πr
r = 8.5cm
I don’t know this and I need help it’s due tomorrow just got it today
Answer:
x = 9
Step-by-step explanation:
The top shape's side values are 3 times larger than the side values of the bottom shape, so x + 15 = 3(8).
Solve for x and you get x = 9.
Answer:
x = 9
Step-by-step explanation:
9 / x = 3 -> x = 3
(x+15) / 3 = 8
x + 15 = 8*3
x+15 = 24
x = 24 - 15
x = 9
A rectangular piece of paper with length 35 cm and a width 18 cm has two semicircles cut out of it as shown below
Answer:
375.66 cm²
Step-by-step explanation:
The two semicircles add to a full circle.
For the circle, d = 18 cm.
r = d/2 = 9 cm.
A = LW - πr²
A = (35 cm)(18 cm) - 3.14(9 cm)²
A = 375.66 cm²
Find the surface area of the figure below. Leave answer in terms of TT. Round to the nearest hundredth if necessary,
18 km
3247 km2
Ob
4227 km2
Ос
3447 km
Od
12967 km2
Answer:
Surface area of the figure = 1,296π km²
Step-by-step explanation:
Given figure is a sphere;
Given:
Radius of sphere = 18 km
Find:
Surface area of the figure
Computation:
Surface area of the figure = Surface area of sphere
Surface area of sphere = 4πr²
Surface area of the figure = 4πr²
Surface area of the figure = 4π(18)²
Surface area of the figure = 4π(324)
Surface area of the figure = 1,296π km²
answer for brainilest and 11 points
Answer:
[tex]16 \times 10 = 160 {in}^{2} \\ 160 \div 16 = 10 {ft}^{2} [/tex]
hey can someone please help me solve this you will get 10 pioints!!
Answer:
area of triangle will be same as parallelogram
second one is 12unit^2.
Casho has a bag that contains pineapple chews, lemon chews, and lime chews. She performs an experiment. Casho randomly removes a chew from the bag, records the result, and returns the chew to the bag. Casho performs the experiment 54 times. The results are shown below:
A pineapple chew was selected 9 times.
A lemon chew was selected 15 times.
A lime chew was selected 30 times.
Based on these results, express the probability that the next chew Casho removes from the bag will be pineapple chew as a percent to the nearest whole number.
Answer:
17% the next chew Casho pulls out is pineapple
Step-by-step explanation:
pineapple chew 9/54
lemon chew 15/54
lime chew 30/54
9/54 = 0.1666666... make this a percent and you get 17% of the time Casho will pull out a pineapple chew.
Answer:
...................................................................
Step-by-step explanation:
Write the equation of the circle graphed below
Answer:
there isnt any image
Step-by-step explanation:
Each day that a library book is kept past its due date, a $0.30 fee is charged at midnight. Which ordered pair is
viable solution if x represents the number of days that a library book is late and y represents the total fee?
3 feet
1 foot
2 feet
A package is shaped like a right rectangular prism. Use the dimensions shown to find the surface area of this package.
A)6 square feet
B)12 square feet
C)20 square feet
D)22 square feet
Answer:
The surface area is 22 square feet
Step-by-step explanation:
For a right rectangular prism, we have the formula for the area as;
A = 2(lb + lh + bh)
Accordingly, we have l as the length, b as the breadth and h as the height
Using the given dimensions, we have
A = 2(3(1) + 3(2) + 1(2))
A = 2(3 + 6 + 2)
A = 2(11) = 22 square feet