Answer:
90
First, divide: 75/25=3
Last 3x 30= 90
or
30
x 3
--------
90
A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next few minutes?
- Molecules in both the metal and the surrounding air will start moving at lower speeds.
- Molecules in both the metal and the surrounding air will start moving at higher speeds.
- The air molecules that are surrounding the metal will slow down, and the molecules in the metal will speed up.
- The air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down.
Answer:
the last option, effectively cooling the hot plate down and heating the surrounding up
square root of 7 hole 18/49
Answer:
19/7
Step-by-step explanation:
7 18/49 = 361/49 = √361/√49 = 19×19/7×7 = 19/7
Square root of 7 18/49 is 19/7
Hope this answer helps you :)
Have a great day
Mark brainliest
Use the function below to find f(-2).
F(x)= 3^x
A. 1/6
B. -9
C. -6
D. 1/9
Answer:
D. 1/9
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
FunctionsFunction NotationExponential Rule [Rewrite]: [tex]\displaystyle b^{-m} = \frac{1}{b^m}[/tex]Step-by-step explanation:
Step 1: Define
Identify
f(x) = 3ˣ
f(-2) is x = -2 for function f(x)
Step 2: Evaluate
Substitute in x [Function f(x)]: f(-2) = 3⁻²Exponents: f(-2) = 1/9if you spin the spinner twice what is the probability of spinning orange then brown
Answer:
Is there any image for the question ???
54 seconds to 2 minutes ( ratio )
Answer:
54:2 = 27:1
Step-by-step explanation:
54:2 use as fraction 54/2 then divide
Kind of confused on this question, please help
Answer:
4th option
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = [tex]\frac{3}{5}[/tex] x - 6 ← is in slope- intercept form
with slope m = [tex]\frac{3}{5}[/tex]
Given a line with slope m then the slope of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{\frac{3}{5} }[/tex] = - [tex]\frac{5}{3}[/tex]
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Here m = - [tex]\frac{5}{3}[/tex] and (a, b ) = (- 2, 5 ) , then
y - 5 = - [tex]\frac{5}{3}[/tex] (x - (- 2) ) , that is
y - 5 = - [tex]\frac{5}{3}[/tex] (x + 2)
median 10 24 9 18 15 28 12 27 25 29 10 26
Answer:
The median is 21
Step-by-step explanation:
Since you have 12 numbers in order, that's an even number, once you put them in numerical order and start crossing them off on both sides, you'll have 18 and 24 left, add them together and divide them by 2 and you'll have your median 21.
Jane bought 6 banana at $250 per dozen. she sells four and a half dozen at $35 each and the others were sold at %20 each determine if she made a profit or loss state her profit or loss as a percentage. show working
Answer:
34.4% profit
Step-by-step explanation:
C.P. = 1500
S.P. = 2016
Profit% = 34.4%
HELP PLEASE
what is the base of this problem?
Answer:
8x8x8x8
Step-by-step explanation:
A plane leave an airport and flies due north. (more in photo)
Answer:
104 miles (nearest whole number)
Step-by-step explanation:
Applying Pythagorean theorem which is: c² = a² + b². Where,
c = distance between the two planes = ?
a = distance of the first plane from the airport = 80 - 1 = 79 miles
b = distance of the second plane from the airport = 68 - 1 = 67 miles
c² = 79² + 67²
c² = 10,730
c = √10,730
c = 103.585713
c = 104 miles (nearest whole number)
Witch shows the correct way to convert 5 ounces to pounds ?
Help please!!!!!!!!!!!!!!
Answer:
452tan37=341km
nearest km
Step-by-step explanation:
please mark me brainliest
write a quadratic function h whose zeros are - 6 and -5 h (x) =
Answer:
h(x)= x^2+11x+30
Step-by-step explanation:
A quadratic function is in the form h(x) = ax^2 + bx + c.
Since the zeros are -6 and -5, take the opposite signs and add them to the variable x separately.
It should look like this: h(x)= (x+6)(x+5)
Since this is the factored form, we have to solve this equation further.
h(x)= (x+6)(x+5)
h(x)= x^2+6x+5x+30
h(x)= x^2+11x+30
can you guys help me plz
Answer:
Step-by-step explanation:
x = 10sqrt(2)*cos(60) = 5sqrt(2) = 7.07 approx.
y = 10sqrt(2)*sin(60) = 10sqrt(2)*sqrt(3)/2 = 5sqrt(6)=12.25 approx.
A 6 foot ladder is leaning against a wall and makes a 57 degree angle with the ground. How high does the ladder reach on the wall
Answer:
357
Son:tep-by-step explanati
Need help with this
Find each indicated measure for circle O
Answer:
Angle A = 41, Arc CE = 42, Angle C = 41, Angle D = 40, Angle ABE = 61
Step-by-step explanation:
Angle A = Arc BD/2 (Inscribed Angle)
Angle A = 82/2
Angle A = 41
Arc CE = 2 x Angle CEB (Inscribed Angle)
Arc CE = 2 x 21
Arc CE = 42
Angle C = Arc BD/2 (Inscribed Angle)
Angle C = 82/2
Angle C = 41
Angle D = Arc AC/2 (Inscribed Angle)
Angle D = 80/2
Angle D = 40
Angle ABE = Arc AE/2
Angle ABE = Arc AC + Arc CE/2
Angle ABE = 122/2
Angle ABE = 61
m < A = [tex]39^{0}[/tex] , mCE = [tex]40^{0}[/tex], m < c = [tex]39^{0}[/tex], m < D = [tex]37^{0}[/tex] m < ABE = [tex]57^{0}[/tex]
What are angles in a circle ?A circle has a total of 360 degrees all the way around the center, so if that central angle determining a sector has an angle measure of 60 degrees, then the sector takes up 60/360 or 1/6, of the degrees all the way around.
a. m < A = [tex]\frac{1}{2}[/tex] mBD
= [tex]\frac{1}{2}[/tex] × [tex]78^{0}[/tex]
= [tex]39^{0}[/tex]
b. mCE = 2m < CBE
= 2 × [tex]20^{0}[/tex]
= [tex]40^{0}[/tex]
c. m < c = m < A = [tex]39^{0}[/tex]
d. m < D = [tex]\frac{1}{2}[/tex] mAC
= [tex]\frac{1}{2}[/tex] × [tex]74^{0}[/tex]
= [tex]37^{0}[/tex]
e. m < ABE = [tex]\frac{1}{2}[/tex] mAC + [tex]\frac{1}{2}[/tex] mCE
= [tex]37^{0}[/tex] + [tex]20^{0}[/tex]
= [tex]57^{0}[/tex]
Hence, m < A = [tex]39^{0}[/tex] , mCE = [tex]40^{0}[/tex], m < c = [tex]39^{0}[/tex], m < D = [tex]37^{0}[/tex] m < ABE = [tex]57^{0}[/tex]
Learn more about angles in a circle here
https://brainly.com/question/23247585
#SPJ2
Find the value of x in each case:
Step-by-step explanation:
angle MRP
angle PRS=angle RPN (alternate angles)
2x+x+x+78°=180°(sum of angles of a triangle)
4x+78°=180°
4x=180°-78°
4x=102°
4x/4=102°/4
x=25.5
can anyone help meh with this i wasn't paying attention in class when my teacher was explaining how to do this :,)
Answer:
W=42°
X=29°
Step-by-step explanation:
180-138=42
90-42-19=29
how to we work out (x-3)(x-9) in product of 2 binomials
Answer:
2−12+27
Step-by-step explanation:
(−3)(−9)
x(x-9) -3(x-9)
x2 (square lol) - 9x -3 (x-9)
x2-9x-3x+27
x2-12x+27
solution:
2−12+27 answer.
Answer:
Step-by-step explanation:
(x-3)(x-9)
x(x-9)-3(x-9)
x^2-9x-3x+27(add like terms)
x^2-12x+27
Write the equation of a line passing through (-1,2) and perpendicular to y = 1/5x+5
Answer:
y = -5x - 3
Step-by-step explanation:
y = -5x + b
2 = -5(-1) + b
2 = 5 + b
-3 = b
HELP ASAP IM BEING TIMEDD
Answer:
53/100
Step-by-step explanation:
First, we convert the fraction to a decimal number by dividing the numerator by the denominator:
8 / 15 = 0.533
There are two parts to the decimal number above:
Integer Part: 0
Fractional Part: 533
Now, we will make the Fractional Part just two digits (nearest hundredth) by using our rounding rules.*
In this case, Rule I applies, so 8/15 (or 0.533) rounded to the nearest hundredth in decimal format is:
0.53
Next, we will make 8/15 rounded to the nearest hundredth in fraction format. Since you can divide our decimal format answer above by 1 and keep the same value, you can make it like this:
0.53 = 0.53/1
Then, we multiply the numerator and denominator by 100 to get rid of the decimal point:
(0.53 x 100) / (1 x 100) = 53/100
That's it. 8/15 rounded to the nearest hundredth is displayed below (simplified if necessary):
53/100
Answer:
53.33% is the correct answer
Let g(x) = 4x - 20 and h(x) = -1/2x + k. For what value of k is the zero of h(x) equivalent to the zero of g(x)
Answer:
Step-by-step explanation:
The zero of a function is also known as the x-intercept of a function. The x-intercept of a function exists where y = 0. So we will begin by setting each of those lines = 0:
4x - 20 = 0 and -1/2x + k = 0 and then solve each for x:
4x = 20 so
x = 5 and
-1/2x = -k and
1/2x = k so
x = 2k. Now we set the 2 x expressions equal to each other and solve for k:
5 = 2k so
k = 5/2
The value of the K in the given equation is 5/2.
The zero of a function is also known as the x-intercept of a function.
The x-intercept of a function exists where y = 0. So we will begin by setting each of those lines = 0:
4x - 20 = 0 and
-1/2x + k = 0 and then solve each for x:
What is the substitution method?The substitution method is the algebraic method to solve simultaneous linear equations. As the word says, in this method, the value of one variable from one equation is substituted in the other equation.
4x = 20 so
x = 5 and
-1/2x = -k and
1/2x = k so
x = 2k. Now we set the 2 x expressions equal to each other and solve for k
5 = 2k so
k = 5/2
Therefore the value of the K in the given equation is 5/2.
To learn more about the expression visit:
https://brainly.com/question/723406
#SPJ2
Ricky takes 2 coins at random from 3 quarters, 5 dimes, and two nickels in his pocket.
1) What is the (P) nickel then a quarter, without 2) What is the (P) nickel then a dime, with
replacement?
replacement?
3) What is the (P) quarter then a dime, with
replacement?
4) What is the (P) nickel then a nickel, without
replacement?
Answer:
Step-by-step explanation:
To calculate the probability of drawing a nickel followed by a quarter without replacement, we need to determine the total number of possible outcomes and the number of favorable outcomes.
Total number of possible outcomes: Ricky chooses 2 coins from a total of 3 quarters, 5 dimes, and 2 nickels. This can be calculated using combinations, denoted as C(n, r), which represents the number of ways to choose r items from a set of n items. In this case, Ricky is choosing 2 coins from a set of 10 coins:
Total possible outcomes = C(10, 2) = 45
Number of favorable outcomes: Ricky needs to select a nickel first, which leaves 9 coins remaining. Out of these remaining coins, there is 1 quarter. Thus, the number of favorable outcomes is 1.
Favorable outcomes = 1
Probability (P) of drawing a nickel then a quarter without replacement:
P = Favorable outcomes / Total possible outcomes
P = 1 / 45
Therefore, the probability of selecting a nickel followed by a quarter without replacement is 1/45.
To calculate the probability of drawing a nickel then a dime with replacement, we assume that after each selection, the coin is replaced, and the total number of coins remains the same.
Probability (P) of drawing a nickel then a dime with replacement:
P(nickel then dime) = (Number of nickels / Total number of coins) * (Number of dimes / Total number of coins)
P(nickel then dime) = (2/10) * (5/10)
P(nickel then dime) = 1/10
Therefore, the probability of selecting a nickel followed by a dime with replacement is 1/10.
To calculate the probability of drawing a quarter then a dime with replacement:
Probability (P) of drawing a quarter then a dime with replacement:
P(quarter then dime) = (Number of quarters / Total number of coins) * (Number of dimes / Total number of coins)
P(quarter then dime) = (3/10) * (5/10)
P(quarter then dime) = 3/20
Therefore, the probability of selecting a quarter followed by a dime with replacement is 3/20.
To calculate the probability of drawing a nickel then another nickel without replacement, we need to consider that the second draw must be a nickel and that the first nickel is not replaced.
Total number of possible outcomes: Ricky chooses 2 coins from a total of 3 quarters, 5 dimes, and 2 nickels:
Total possible outcomes = C(10, 2) = 45
Number of favorable outcomes: Ricky needs to select a nickel first, which leaves 9 coins remaining. Out of these remaining coins, there is only 1 nickel left.
Favorable outcomes = 1
Probability (P) of drawing a nickel then another nickel without replacement:
P = Favorable outcomes / Total possible outcomes
P = 1 / 45
Therefore, the probability of selecting a nickel followed by another nickel without replacement is 1/45.
To know more about probability here
https://brainly.com/question/13604758
#SPJ2
Hey all! Pls help
They are easy questions, pls show the working
Answer:
7. x = 6
8. x = 15/4
9. x = -7
Answer:
Hello there user, looks like your looking for help!
The correct answers should be:
7. x = 6
8. x = 3 3/4
9. x = -7
Step-by-step explanation:
3/2 = x/4
6/4 = x/4
x = 6
x/3 = 1 1/4
4x/12 = 15/12
x = 15/4
x = 3 3/4
(x + 1)/3 = (x-1)/4
(4x + 4)/12 = (3x-3)/12
x/12 = -7/12
x = -7
Find the equation of the line through the points (6, -9) and (-2, -1).
Enter your answer in slope-intercept form y = mx + b.
Answer:
y = -1x - 3
Step-by-step explanation:
y2 - y1 / x2 - x1
-1 - (-9) / -2 - 6
8/-8
= -1
y = -1x + b
-1 = -1(-2) + b
-1 = 2 + b
-3 = b
Multiply : 2^3 root 3 by 3 root 2
Answer:
24 root 6
Step-by-step explanation:
Answer:
the answer is 58•78775383(that is 2^3√3×3√2)
HELP QUICK
(question in picture)
Answer:
Step-by-step explanation:
There’s a total of 10+16+20+18 = 64 candies.
There’s 10 red candies.
10 / 64 = 0.15625
Rounded: 0.2
What is the slope of the line g(x) = -7x + 8?
Answer:
The slope is -7 and the y intercept is 8
Step-by-step explanation:
g(x) = -7x + 8
This is in the form y = mx +b where m is the slope and b is the y intercept
The slope is -7 and the y intercept is 8
the area of a circle is 100 square miles. What is the diameter?
Answer:
The diameter of a circle with an area of 100 square miles is 20/√π miles.
Step-by-step explanation:
Area =100 = πr^2.
diameter = d = 2r.
100 = πr^2.
100/π = r^2.
√(100/π) = r.
10/√π = r.
d = 2r.
d = 2 * 10/√π.
d = 20/√π
Samples of viewers were taken from two different movies to compare the ages of those
watching the movie. Fifty participants were asked their ages as they exited each movie. The
results are shown on the double box plot below. Which statistical measure was equal for the
two samples?
Movie
Answer:
The median are equal
Step-by-step explanation:
Given
I will answer this question with the attached plot (see attachment 2)
Required
The equal statistical measures
See attachment 1 on how to read a box plot
Using attachment 1 as a guide, we have the following observation
Movie 2 Movie 1
[tex]Minimum=7.5[/tex] [tex]Minimum=10[/tex]
[tex]Q_1 = 22.5[/tex] [tex]Q_1 = 15[/tex]
[tex]Median = 30[/tex]
[tex]Q_3 = 35[/tex] [tex]Q_3 = 40[/tex]
[tex]Maximum = 47.5[/tex] [tex]Maximum = 52.5[/tex]
By comparison, they have equal median (30)