it is 10% because 10 percent got better in the experiment
It takes 41.7 BTUs to heat a 5 gallon jug of water. What is the density of a gallon of water. Round your answer to the nearest hundredth
Answer: The density is 0.002 lb/cm^3
Step-by-step explanation:
1 BTU is neded to increment the temperature of 1 Lb of water by 1° F
Then if we need 41.7 BTU to increment 1°F of 5 gallons of water, this means that in the 5 gallons we have a mass of 41.7 lbs of water.
And as you know, density = mass/volume
now, 1 gallon = 3.78 liters = 3780 cm^3
then 5 gallons = 5*3780 cm^3 = 18900 cm^3
The density is D = 41.7Lb/18900 cm^3 = 0.002 lb/cm^3
will give brainiest plz helppppppppp!!!!!!!
Answer:
549.16
Step-by-step explanation:
83.08/pi=diameter (26.44)
26.44 / 2 = 13.22 (radius)
area=3.14*(13.22)^2
Answer:
The answer is 550
Step-by-step explanation:
83.08/pi=diameter (26.44)
26.44 / 2 = 13.22 (radius)
area=3.14*(13.22)^2
How do you write twenty five increased by six in a numerical expression
Answer:
25+6
Step-by-step explanation:
Which of these inferences about the two debate teams are true? Check all that apply.
West Side is more consistent at winning.
East Side is more consistent at winning.
East Side typically wins more debates per year than West Side.
West Side typically wins more debates per year than East Side.
These graphs do not contain enough information from which to draw inferences.
Answer:
B and C
Step-by-step explanation:
i did on ed
Answer:
B and C
Step-by-step explanation:
Amir pitches a baseball at an initial height of 6 feet, with a velocity of 73 feet per second. If the batter misses, about how long does it take the ball hit the ground? (2 points)
Hint: Use H(t) = −16t2 + vt + s.
answer choices
4.64 seconds
2.94 seconds
2.28 seconds
0.08 second
A right triangle is inscribed in a circle as shown. What is the area of the shaded region. Diameter of 12 and 9 cm in triangle
Answer:
[tex]36\pi -18\sqrt{7}[/tex]
Step-by-step explanation:
Every inscribed right triangle has its hypotenuse as the same size of the Diameter. Assuming that, this is the case check the picture below.
So the hypotenuse= D=2R=12
Shaded Area = Area of the Circle- Area of the TriangleArea of Circle:[tex]A_{circle}=\pi (6)^{2}=36\pi[/tex]
Area of the Triangle:Finding the Triangle base via the Pythagorean Theorem
[tex]a^2=b^2+c^2\\12^2=9^2+c^2\\144-81=c^2\\c=\sqrt{63}\\c=3\sqrt{7}\approx 7.94[/tex]
Now plugging in the base of the triangle on that formula:
[tex]A=\frac{bh}{2}\\A=\frac{3\sqrt{7}*12}{2}\\A=18\sqrt{7}[/tex]
Finally,
Shaded Area = [tex]36\pi -18\sqrt{7} cm^{2} \approx 65.48 cm^{2}[/tex]
2A - 5B + 4X = C - 8X
Answer:
(5B+C-2A)/8 = x
Step-by-step explanation:
2A - 5B + 4X = C - 8X
subtract 4x from both sides
2A - 5B + 4X-4x = C - 8X-4x
2A - 5B = C - 12X
subtract C from both sides
2A - 5B -C = C-C - 8X
2A - 5B -C = - 8X
divide both sides by -8
(2A - 5B -C)/-8 = - 8X/-8
(-2A+5B+C)/8 = x
(5B+C-2A)/8 = x
the volume of a rectangular dog kennel is modeled by the polynomial x3 +14x2 +60+72. If the height of the kennel is modeled by (x+2) and the length and width are equal to each other, what expression could represent the dog kennel
The expression could represent the dog kennel is (x + 2)(x + 6)²
What expression could represent the dog kennel
From the question, we have the following parameters that can be used in our computation:
Volume = x³ + 14x² + 60x + 72
Height = x + 2
Dividing the Volume by the Height , we have
x² + 12x+ 36
x + 2 | x³ + 14x² + 60x + 72
x³ + 2x²
--------------------------------------------------------
12x² + 60x + 72
12x² + 24x
--------------------------------------------------------
36x + 72
36x + 72
--------------------------------------------------------
0
So, we have
x³ + 14x² + 60x + 72 = (x + 2)(x² + 12x+ 36)
Expand
x³ + 14x² + 60x + 72 = (x + 2)(x + 6)²
Hence, the expression could represent the dog kennel is (x + 2)(x + 6)²
The width of a human hair is about 0.002 inches, which can be written as
2 x 10" inches. What is n?
Answer:
-3
Step-by-step explanation:
[tex]2*10^{-3}[/tex], n= -3.
What is fraction?A fraction is a number which represents the part of a whole or collection of objects. It is in the from of a/b where a represents the numerator part and the b represents the denominator parts.
The width of a human hair is about 0.002 inches,
It can be written in fraction form as,
[tex]\frac{2}{1000}[/tex]⇒ [tex]\frac{2}{10^{3} }[/tex]
By writing [tex]10^{3}[/tex] in reciprocal from we get,
[tex]2*10^{-3}[/tex], then n= -3.
Hence, [tex]2*10^{-3}[/tex], n= -3.
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to find the area of triangle abc, Jen first drew a square around the figure. two sides of the square passed through the points B and C. the other two sides met at point A. draw Jens square, and explain how you can use it to find the area of triangle ABC
Answer:
s²/2
Step-by-step explanation:
Area of square = 2 triangles
Find the area of the square using s²
For area of the triangle, divide by 2
The area of Jens square and the area of the triangle is A = ( 1/2 )s²
What is a Triangle?A triangle is a plane figure or polygon with three sides and three angles.
A Triangle has three vertices and the sum of the interior angles add up to 180°
Let the Triangle be ΔABC , such that
∠A + ∠B + ∠C = 180°
The area of the triangle = ( 1/2 ) x Length x Base
For a right angle triangle
From the Pythagoras Theorem , The hypotenuse² = base² + height²
if a² + b² = c² , it is a right triangle
if a² + b² < c² , it is an obtuse triangle
if a² + b² > c² , it is an acute triangle
Given data ,
Let the triangle be represented as ΔABC
Now , the measure of sides of the triangle are
AB = AC = s
From the figure , we can see that
Now , area of the triangle = ( 1/2 ) x Length x Base
On simplifying , we get
A = ( 1/2 )s²
Hence , the area of the triangle is A = ( 1/2 )s²
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Which expression represents the total surface area, in square centimeters, of the square pyramid?
(8.2) (8.2) + 4 (one-half (8.2) (10.3))
(8.2) (8.2) + 4 (one-half (8.2) (11.1))
(8.2) (10.3) + 2 (one-half (10.3) (10.3)) + 2 (one-half (8.2) (10.3))
(8.2) (10.3) + 2 (one-half (10.3) (11.1)) + 2 (one-half (8.2) (11.1))
Answer:
(8.2) (8.2) + 4 (one-half (8.2) (11.1))
Step-by-step explanation:
Formula for calculating the surface area of a square based pyramid is expressed as:
Surface area = A + 1/2ps
A is the base area
P is the perimeter of base
S is the slant side.
Since the base of the pyramid is a square, then
Base Area A = L²
A = 8.2²
A = 67.24cm²
Perimeter of square = 4L = 4(8.2)
= 32.8cm
Slant Height = 11.1cm
On substituting the gotten value:
Surface area = 8.2(8.2) + 1/2 [4(8.2 (11.1)]
Based on the solution above, the expression below is correct.
S =(8.2) (8.2) + 4 (one-half (8.2) (11.1))
If the diameter of a circle is 15 inches, what is the radius?
Answer:
7.5
Step-by-step explanation:
R= d/2
Divide 15 by 2
Answer:
7.5
Step-by-step explanation:
So the formula is:
[tex]\frac{d}{2}[/tex]=r
So Divide 15 by 2. Which is 7.5
14 divided by 2 is 7, and the 1 left over would be a .5
Hope this helped!
Calculating Factorials
Quick
Check
Evaluate each expression.
6! =
Answer:
6! = 720
Step-by-step explanation:
In evaluating factorial functions, generally
n! = n(n-1)(n-2)(n-3)...× 1
We can see that as we are moving, the value keep decreasing by 1 until it reaches the least value which is 1.
6! = 6(6-1)(6-2)(6-3(6-4)(6-5)
6! = 6×5×4×3×2×1
6! = 720
60% of x is equal to 87. Write an equation that expresses the relationship between 60%, x, and 87.
Answer: 0.6x = 87
Step-by-step explanation:
Hi, to answer this question we have to write en equation:
We have to multiply the variable x by the percentage given (60%) in decimal form (divided by 100). That expression must be equal to 87.
Mathematically speaking:
x (60/100) = 87
0.6x = 87
Feel free to ask for more if needed or if you did not understand something.
This equation states that 60% (or 0.60) of x is equal to 87.
To express the relationship between 60% of x and 87, we can set up an equation. Since 60% can be written as 0.60, we can write:
0.60x = 87
To solve for x, we divide both sides of the equation by 0.60:
x = 87 ÷ 0.60
So, x will be:
x = 145
This shows that 60% of 145 is equal to 87.
Uta invests an amount into a compound interest investment account that pays 6% a year. After six years, she withdraws her total balance of $500. Using the formula A = P (1 + r) Superscript t, how much money did Uta initially invest?
$180.00
$320.00
$352.48
$471.70
Answer: $352.48
Step-by-step explanation:
Hi, to answer this question we have to apply the formula:
A = P (1 + r)^t
Where
A: total balance after invest
P: principal amount invested
r = interest rate (in decimal form)
t = time (years)
Replacing with the values given:
500= P (1+0.06)^6
Solving for P:
500 = P (1.06)^6
500 / ( (1.06)^6)=P
500 / 1.4185 =P
$352.48= P
Answer:
352.48
Step-by-step explanation:
At a restaurant, you order a meal and a beverage that costs $14. You leave a 20% tip. What is the total cost of the meal?
Answer:
16 dollars and 80 cents plz give branliest
Step-by-step explanation:
Find 10 percent
14 / 10 = 1.4
double it
1.4 * 2 = 2.8
Add 2.8 to 14
to get 16.8
What is 3=7(4 - 2u)-6u
Answer:
u = 5/4
Step-by-step explanation:
to evaluate for the value of u we would simply open the bracket and then evaluate for the value of u by collecting the like terms together.
solution
3=7(4 - 2u)-6u
3 = 28- 14u - 6u
collect the like terms
3 + 14u + 6u = 28
20u = 28 - 3
20u = 25
divide both sides by the coefficient of u which is 20
20u/20 = 25/20
u = 5/4
Answer:
[tex]u = 5/4[/tex]
Step-by-step explanation:
Step 1: Distribute on the right side
[tex]3 = 7(4 - 2u) - 6u[/tex]
[tex]3 = (7 * 4) + (7 * -2u) - 6u[/tex]
[tex]3 = 28 - 14u - 6u[/tex]
Step 2: Combine like terms
[tex]3 = 28 + (-14u - 6u)[/tex]
[tex]3 = 28 + -20u[/tex]
Step 3: Subtract 28 from both sides
[tex]3 - 28 = 28 - 20u - 28[/tex]
[tex]-25 = -20u[/tex]
Step 4: Divide both sides by -20
[tex]-25 / -20 = -20u / -20[/tex]
[tex]5/4 = u[/tex]
Answer: [tex]u = 5/4[/tex]
A cylinder has a base diameter of 8ft and a height of 20ft. What is its volume in cubic ft, to the nearest tenths place?
The volume of a cylinder with a base diameter of 8ft and height of 20ft is approximately 1005.3 cubic feet.
Explanation:The volume of a cylinder can be calculated using the formula Volume = πr²h where π represents approximately the number 3.14, 'r' signifies the radius of the cylinder, and 'h' denotes the height of the cylinder.
In this case, the diameter of the cylinder is given as 8 feet, so the radius will be half of that which is 4 feet. The height is specified as 20 feet.
Substitute these values into the equation:
Volume = π * (4 ft)² * 20 ft
This simplifies to:
Volume = 3.14 * 16ft² * 20ft
By multiplying these values, we get the volume equals the product of these numbers:
Volume ≈ 1005.3 cubic ft. Hence, the volume of this cylinder to the nearest tenths is 1005.3 cubic feet.
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The volume of a cylinder with an 8ft diameter and 20ft height is approximately 1005.3 cubic feet, rounded to the nearest tenths place.
To calculate the volume of a cylinder, we use the formula V = πr²h, where V represents the volume, r is the radius of the cylinder's base, and h is the height of the cylinder. Given that the diameter of the cylinder is 8ft, the radius is half of the diameter, which is 4ft. Now, using the formula:
V = πr²h
V = π(4ft)² × 20ft
V = π16ft² × 20ft
V = π 320ft³
V = 1005.31ft³
Therefore, the volume of the cylinder is approximately 1005.3 cubic feet, rounded to the nearest tenths place.
15 kilograms of rice are separated equally into 4 containers. How many kilograms of rice are in each
container? Express your answer as a decimal and as a fraction,
Final answer:
Each container will have approximately 3.75 kilograms of rice, which can be expressed as 3.75 kg or 15/4 kg.
Explanation:
To find out how many kilograms of rice are in each container, we need to divide the total weight of the rice by the number of containers. In this case, we have 15 kilograms of rice and 4 containers, so we divide 15 by 4. The result is 3.75 kilograms.
So, each container will have 3.75 kilograms of rice.
As a decimal, this can be expressed as 3.75 kg. As a fraction, it can be written as 15/4 kg.
Volume of a rectangular prism is 275 cubic Inches. The base is a square with the
side length of 5 inches. Find the height of this prism. Write the formula, and solve
as an equation. V=s?h
Answer:
11 in
Step-by-step explanation:
Starting with the base, we know the side length is 5 inches. So with that in mind, we can do 5 x 5 to get the area of the base, 25. We also know the volume of the whole rectangular prism is 275, so we can do 275 ÷ 25. The quotient of that is 11.
We can check our answer by doing 11 x 25. This gives us 275, proving that it is correct.
Hope this helped! :)
The Sum of The Angles in a Triangle please help
Answer:The measure of angle C is 50°
Step-by-step explanation:
The sum of all inside angles must add up to 180°
80+50=130
130+C
C=50
130+50=180
Rewrite 10^32 x 10^6 using a single exponent
10^38
Step-by-step explanation:
Given that,
10^32 x 10^6
Here the base is same (10) and the powers are 32 and 6.
These 2 bases are in multiplication form so the powers can be added up.
10^32 x 10^6 = 10^(32+6)
= 10^38
A local farm sells produce to a large grocery chain. The grocery store uses a 28% markup on the farms produce. Of the farm sells the store watermelons for $3.00 each, how much does the grocery store charge?
Answer:
$3.84
Step-by-step explanation
move the decimal back two place - .28, it is a mark up so add a 1 at the beginning - 1.28 - multiply - 3 x 1.28 = 3.84
Which expression is equivalent to 5 divided by 2
A. 5•1\2
B. 2/5
C. 10
D. 2•1/5
Answer:
a
Step-by-step explanation:
Answer:
= 5 × 1/2
Step-by-step explanation:
Five divided by 2
= 5 ÷ 2
= 5/2
Which is same as
= 5 × 1/2
I hope this was helpful, please rate as brainliest
Which functions represent exponential growth?
Answer: the answers is y=h(x) and y=k(x)
Step-by-step explanation: on edge
HELP PLEASE ASAP 30 PTS I’ll MARK YOU BRAINLIEST
Answer:
x=50 ∠BCX=65
Step-by-step explanation:
The angles is a triangle add up to 180 so
70+45+∠BCX=180 so
115+∠BCX=180 (subtract 115 from both sides)
∠BCX=65
A line adds up to 180
so 2x+15+65=180
so 2x+80=180 (subtract 80 from both sides)
2x=100 (divide by 2)
x=50
ok i do not know how to do this please help asap ;-;
Answer:
Look and see >:/
Step-by-step explanation:
1) 13, 34 Rate of change: 3
2) 15, 1 Rate of change: -2
3) 17, 32 Rate of change: 0.75
4) 9, -1 Rate of change: -0.4
Please help me please!!!!
Answer:
1 F
2 C
3 G
4 D
5 A
6 E
7 B
Step-by-step explanation:
p implies q (conditional)
Which is G
It's converse would be
q implies p
Which is G
F and G together become bi-conditional
Which is B
Contraposition is
not q implies not p
Inverse of p implies q is
not p implies not q
Which is D
Conjunction is p and q,
Which is F
Disjunction is p or q,
Which is C
How many solutions does this equation have?
4x − 10
2
= 2x − 5
A) no solution
B) exactly one solution
C) exactly two solutions
D) infinitely many solutions
Answer:
The correct answer is infinitely many
Step-by-step explanation:
4x-10/2=2x-5
after that you will multiply the 2 times 2x and 2 times -5
so now it becomes
4x-10=4x-10 that's why it's infinitely many
Answer:
D) infinitely many solutions
Step-by-step explanation:
The equation yields a statement that is always true, −10 = −10.[
So, the equation has infinitely many solutions.
4x − 10 2 = 2x − 5 4x − 10 = 4x − 10 −10 = −10
How much water should be added to 50 ml of 45 percent acid solution to dilute it to a 35 percent acid solution?
(Will Mark as Brainliest)
Answer:
dont drink water .
Step-by-step explanation:
Answer:
12.5
Step-by-step explanation: