Answer:
Boys sent more text messages than girls during the
✔ night
.
In the morning, girls sent about
✔ 5
more text messages than boys.
Both boys and girls sent the most text messages in the
✔ evening
.
During the afternoon, the students sent a total of approximately
✔ 40
text messages.
Step-by-step explanation:
Answer:
Boys sent more text messages than girls during the
✔ night
.
In the morning, girls sent about
✔ 5
more text messages than boys.
Both boys and girls sent the most text messages in the
✔ evening
.
During the afternoon, the students sent a total of approximately
✔ 40
text messages.
Step-by-step explanation:
What is the difference between a trapezoid and a rhombus?
A) A trapezoid is a parallelogram and a rhombus is not.
B) A rhombus always has 4 equal sides and a trapezoid does not.
C) A rhombus always has 4 right angles and a trapezoid does not have to.
Eliminate
D) A rhombus never has 2 sets of parallel sides and a trapezoid always does.
The large stones of Stonehenge are arranged in a circle about 30 meters in diameter. What
is the radius?
Answer:
The radius is just the diameter split in half, so r = 15 meters.
Explanation:
D = 30
30/2 = 15
r = 15
QUICK I NEED A ANSWER!!
Find the area of the complex shape.
12 in
3 in
7 in
4 in
8 in
Answer:
Give me the formula and i can do it
Step-by-step explanation:
How much commission would a salesperson ear for selling a car that costs $29,389? He receives 16% commission on each sale.
Answer:
Commission on car = $4,702.24
Step-by-step explanation:
Given:
Sales price of car = $29,389
Commission on sale of car = 16% = 0.16
Find:
Commission on car
Computation:
Commission on car = Sales price of car x Commission on sale of car
Commission on car = 29,389 x 16%
Commission on car = 29,389 X 0.16
Commission on car = $4,702.24
(3x^2+7)+(2x^2-5x+10)
Answer:
5x² - 5x + 17
Step-by-step explanation:
(3x² + 7) + (2x² - 5x + 10)
Combine the like terms.
3x² + 2x² = 5x²
-5x does not have a like term, so there is no change.
7 + 10 = 17
Combine them, and the final equation is
5x² - 5x + 17.
Answer: 5x² - 5x + 17
Step-by-step explanation:
(3x^2+7)+(2x^2-5x+10)
3x^2 + 2x^2
-5x
7 + 10
5x^2 - 5x + 17
- If I've understood correctly
According to the probability histogram for a discrete random variable X what is E(X)?
A. 3.15
B. 3.05
C. 2.89
D. 2.65
E. 0.2
Answer:
A. 3.15
Step-by-step explanation:
Sana makatulong
E(x) = 3.15.
What is distribution in probability?By displaying the proportion of data points (referred to as "bars") that fall inside a certain range of values, a histogram gives a visual explanation of numerical data. A vertical bar graph and a histogram are comparable.
E(X) = ∑( x ∗ P(x))
Given a probability histogram for a discrete random variable X.
We will drive the P(x) for every value of x.
P(X=1)=0.1
P(X=2)=0.2
P(X=3)=0.3
P(X=4)=0.25
P(X=5)=0.15
Putting these values in a summation equation to find E(x)
E(x) = 1*0.1 +2*0.2 + 3*0.3 + 4*0.25 + 5* 0.15
E(x) = 3.15
Therefore E(x) for the given histogram far random variable x will be 3.15.
Learn more about distribution here:
https://brainly.com/question/29062095
#SPJ2
a baseball team played 32 games and lost 8 . Katy was the catcher in 5/8 of the winning games and 1/4 of the losing games. what fraction of the games did the team win? and how many games did Katy play catcher
Answer:
17
Step-by-step explanation:
what you have to is simple, first do 32-8 which get you 24, thats how many they won. Then do 8x1/4 to get 2, she played 2 games as catcher and lost, then do the same thing with the winning games. 24x5/8 should get you 15. she played 15 games as catcher and won. then do 15+2 to get 17.
hope that helps!
Answer:
1/4 - won
7/8 - katy played catcher
hope this helps you :)
simplify the algebraic expression!!
Answer:
[tex]\frac{y^{3}}{2z^{7}}[/tex]
Step-by-step explanation:
1. Move z^ − 3 to the denominator using the negative exponent rule b ^− n = 1/ b ^n
2. Multiply z ^4 by z ^3 by adding the exponents.
3. Cancel the common factor of 4 and 8
4. Cancel the common factor of x^2
Answer:
[tex]\frac{y^{3} }{2z^{7} }[/tex]
Step-by-step explanation:
A nickel has a mass of 5 grams. What is the mass of the nickel in milligrams?
Answer:
5,000 milligrams
Step-by-step explanation:
Know That One 1 gram equals = 1,000 milligrams
Hope this Helps!
PLEASE HELP ASAPPP!!!
Step-by-step explanation:
hope it helps you......
The 5.5% state income tax on a $55,000 salary
Answer:
$3,025
This is found by moving the percentage decimal point over two spaces. 5.5% becomes 0.055. Then you multiply this by the salary.
Can someone please answer this ASAP
Answer:
2x^2+3x^4+1
Step-by-step explanation:
a trinomial is composed by three monomials.
So only A and B can be correct
the degree of a polynomial is the same of the monomial that compose it with the biggest degree
so the answer is B because the monomial with the biggest degree is 3x^4 (its degree is 4)
what is the inequality for more than 100,000
Answer:
>100,000
Step-by-step explanation:
1
Factorise 2x2 + 11x + 12. You can use the grid to help.
2x
3x
8x
1
12
2x2 + 11x + 12 =
Answer:
(2x+3)(x+4)
Step-by-step explanation:
hope the picture helps.
Water is filling a cylindrical water tank. As it is filled the radius of the tank expands at 0.2cm/s and the height decreases at the rate of 0.5cm/s. Find the rate at which the volume of the tank is changing at the instant the radius equals 1.8cm and height equals 65 cm. What is the volume of water at this point? Show all working. Volume, V, of the cylinder is given by V = ϖr2h.
Recall that V is a function of both r (radius of the cylinder) and h (the height of the cylinder). This is a partial differentiation problem. The volume is also changing with time.
Answer:
141.94 cm³/s
Step-by-step explanation:
Since the volume of the tank V = πr²h, and both the height and radius of the tank change with time, we find the rate of change of the volume with time, dV/dt from
dV/dt = dV//dr × dr/dt + dV/dh × dh/dt
where dV/dr = 2πrh, dr/dt = + 0.2 cm/s (since the radius of the tank expands), dV/dh = πr² and dh/dt = -0.5 cm/s (since the height of the tank decreases)
So,
dV/dt = dV/dr × dr/dt + dV/dh × dh/dt
dV/dt = 2πrh × + 0.2 cm/s + πr² × -0.5 cm/s
dV/dt = 0.4πrh cm/s - 0.5πr² cm/s
dV/dt = πr(0.4h - 0.5r) cm/s
We now find the rate at which the volume is changing when r = 1.8 cm and h = 65 cm.
So,
dV/dt = π(1.8 cm)(0.4 × 65 cm - 0.5 × 1.8 cm) cm/s
dV/dt = π(1.8 cm)(26 cm - 0.9 cm) cm/s
dV/dt = π(1.8 cm)(25.1 cm) cm/s
dV/dt = π(45.18 cm²) cm/s
dV/dt = 141.94 cm³/s
Please help!!!!! I’ll mark you as brainliest!!!!!!
Answer:
The answer is 7440
Answer:
$7740
Step-by-step explanation:
60,000×12,4%=$7740
Five years ago today, Artie was four times as old as his sister Carrie. In five years time, Artie will be twice as old as Carrie. Find their current ages using a system of linear equations.
Answer: 25 , 10 years
Step-by-step explanation:
Suppose the present age of Artie and Carrie is x and y
According to the question, 5 years ago
[tex]\Rightarrow x-5=4(y-5)\\\Rightarrow x-4y=-15\quad \ldots(i)\\[/tex]
In five year time
[tex]\Rightarrow x+5=2(y+5)\\\Rightarrow x-2y=5\quad \ldots(ii)[/tex]
Solving (i) and (ii) we get
[tex]x=25,y=10[/tex]
The current age of Artie and Carrie is 25 and 10 years
WILL MARK BRAINLIEST IF GOTTEN RIGHT
Answer:
20 ft.
Step-by-step explanation:
Diameter is length across the circle/ across the middle
GO GO GO
<3
For the function y=1/2x-3, what is the input value if the output value is 0.
Answer:55
Step-by-step explanation:
PLEASE HELP I WILL GIVE BRAINIEST. What is the range?
Answer:
range= 8
Step-by-step explanation:
to find range> subtract highest number to the lowest
so 10- 2= 8
Order the numbers from least to greatest.
LEAST
1
8
= 0.13
= 0.12222...
12.7%
A spinner has 6 numbers on it, from 1-6, all with equally spaced area. Find the probability of spinning a
Prime number, P(Prime)
Select the correct response.
1
2
5
6
2
3
1
3.
Answer:
first option 1/2
Step-by-step explanation:
2,3,5 are the prime numbers from that set
each individual number has a 1 in 6 chance of landing on it and we have 3 so...
3 of 6 possibilities would be prime numbers. Simplify to...
1 in 2
(PLEASE HELP)
If the given lengths of a triangle are 16 and 10 which can NOT be the third side?
A.21
B.22
C.25
D.27
Answer:
D.27Step-by-step explanation:
This is because,
According to Triangle Inequality Property:
Measurement of any two sides of a triangle is always greater than the third side.
Here,
10 + 16 = 26 > 21
10 + 16 = 26 > 22
10 + 16 = 26 > 22
But,
10 + 16 = 26 < 27
Hence,
Option D: 27 can't be the measurement of the triangle.
The length of a rectangle is 1 m less than twice the width, and the area of the rectangle is 21 m?. Find the dimensions of the rectangle.
Answer:
length = 6
width = 3 1/2
Step-by-step explanation:
l = length
w = width
l = 2w-1
w(2w-1) = 21
2w² - 1 - 21 = 0
(2w - 7)(w + 3) = 0
w = 7/2 = 3 1/2
find 'l': l = 2(7/2) - 1 = 7-1 = 6
A bag has 4 red marbles, 5 blue marbles, and 6 green marbles. What is the probability if choosing a red marble from the bag, not putting it back, and then choosing a green marble?
Answer: 4/35
Step-by-step explanation:
Number of red marbles = 4
Number of blue marbles = 5
Number of green marbles = 6
Total number of marbles = 4+5+6 = 15
When a red marble is picked, the probability is 4/15, then to pick a green marble after that, we have 14 marbles left and probability of picking green is 6/14.
Now, probability of choosing a red marble from the bag, not putting it back, and then choosing a green marble will be:
= 4/15 × 6/14
= 24/210
= 4/35
Find the interquartile range (IQR) of the data in the dot plot below
Answer:
2 cm
Step-by-step explanation:
As we know, the iqr is found by subtracting Q3-Q1. So that means we need to find them first. Finding the median will help us accomplish this task. So when writing out the numbers to solve it 81,82,83,83,84,84,84,85 because the amount of data points are an even number, we will have two data points which will help us solve our median which in this case is where the 83 and 84 meet. Our median is thus 83+84/2 which is 83.5. Now look on both sides of the two numbers which make up our median. On either side of the 2 data points needed for the median, the is another 3 data points. To find your q1 and q3, you need to find the median of these numbers. For Q1 look for the median between the numbers 81,82,83 and for Q3, look for the median in the numbers 84,84,85. So, knowing this information, our Q1 value is 82 and our Q3 value is 84. So..... input these into the equation we have up top which is Q3-Q1=IQR so...... 84-82=IQR, thus, our IQR is 2.
twice the sum of a number and ten
Answer:
2(x+10)
Step-by-step explanation:
Well since sum is addition and the number and 10 are the sum, let’s make the “number“ (x) and add em up. 10+x.
Now we gotta double that sum which is basically
2(10+x)
please check answer!
I need help with my homework
Answer:
The answers are B, D, and E.
Can someone plz help me with this Math problem and plz explain how you got your answers