Answer:
just remember that each baby elephant weight 3/8 of a ton
and all together weight 3/4 of a ton
so how many baby elephants will be ,let be x a unknown number of them
so
x*(3/8) =3/4
because multiplying the number of baby elephants with their body weight gives the total weight of all baby elephants.
so
x=(3/4)*(8/4)=2
the number of baby elephants is 2
what is 13839x8468=?
Answer:
117188652
Step-by-step explanation:
Answer:
117,188,652
Step-by-step explanation:
Hope this helps!! And good luck!
25 points for grabs!
I have 1 bag of marbles. I put in 3 extra marbles. There are now 9 marbles in the bag. How many were in the bag to begin with?
Look I very obviously know that the answer is 6, however I would like the working out and just an explanation on how to do it. Please and thank you <3
Answer:
6 marblesStep-by-step explanation:
Let the initial number of marbles be x
Then added 3 and got 9 as final number
Equation for this and solution
x + 3 = 9x = 9 - 3x = 6Simplify
4a + 5b – 3b + a
2 marks)
Answer:
5a+2b
Step-by-step explanation:
4a + 5b – 3b + a
Combine like terms
4a +a + 5b-3b
5a+2b
Can anyone answer these questions?
Answer:
1. y² = 169
taking a square root of both sides
y = √169
we know that 13 * 13 = 169
since when squaring a number, the signs on the numbers do not matter
(i.e - 2* 2 = 4 and (-2)*(-2) = 4)
So (-13) * (-13) = 169 as well
Hence we can say that √169 = ±13 OR √169 = +13 and -13
2. Volume of a cube-shaped crate = side*side*side
Volume = side³
(We are given that volume = 27)
27 = side³
side = ∛27
Since 3*3*3 = 27 and (-3)*(-3)*(-3) = 27
So, we can say that ∛27 = ± 3
BUT
the side of a crate cannot be negative, so the side will NOT be -3 and hence,
side = 3
3. b³ = 1000
we know that 10*10*10 = 1000 and (-10)*(-10)*(-10) = 1000
So, ∛1000 = ∛(10*10*10)= ±10
4. Area of a square(Patio) = Side²
Area = Side²
196 = Side² (Since we are given the area of the patio)
Side = √196 = √(14*14) or √(-14*-14)
Hence,
Side = + 14 or -14
but the side of a patio cannot be negative
Side = +14 ft
An elevator descends at a
constant speed. What is the change in elevation
after 19 seconds?
Answer:
he total time is 4 seconds. The elevator descends 10 feet each second so the total is:
4seconds x -10 feet/sec = -40 feet
The total change in elevation is -40 feet. You need the negative sign because the elevator is moving downward. Hope this helps!
The sum of two consecutive integers is
−29.
Find the numbers.
Consider the line y=-1/2x+8
What is the slope of a line parallel to this line?
What is the slope of a ine perpendicular to this line?
Given parameters:
Equation of the line is y = -[tex]\frac{1}{2} x[/tex] + 8
Unknown:
Slope of line parallel to this line = ?
Slope of line perpendicular = ?
Solution:
A line parallel to this line will have the same slope with it.
A line perpendicular will have the negative inverse of this slope;
Slope of line = - [tex]\frac{1}{2}[/tex]
Slope of line parallel to this line = [tex]-\frac{1}{2}[/tex]
Slope of line perpendicular = negative inverse = -( -([tex]\frac{1}{\frac{1}{2} }[/tex])) = 2
So, the slope of line parallel to this line is - 1/2 and that perpendicular is 2
What is this picture an example of
how to simplify -2n + 11 + 6n
Answer:
4n+11
Step-by-step explanation:
-2n+6n=4n
Hope this helps! :)
Answer:
4n+11
Step-by-step explanation:
Move the variables together
-2n+6n+11
4n+11
ANSWER ASAP!!!!
Kim has 40 coins worth $8.80. The coins are a combination of nickels and quarters. How many of each type of coin does she have?
Kim has __ quarters and __ nickels
Answer:
34 quarters.
6 nickles.
Step-by-step explanation:
90 POINTS!!!!!
What show is this from?
Answer:
Trailer Park Boys I believe
Answer:
trailer park boys i think
Step-by-step explanation:
This table shows the ratio of apples to oranges. A 2-column table has 3 rows. Column 1 is labeled Apples with entries 6, 9, 12. Column 2 is labeled Oranges with entries 10, 15, question mark. Find the missing value in the table of equivalent ratios.
Given:
This table shows the ratio of apples to oranges.
Apples Oranges
6 10
9 15
12 ?
To find:
The missing value in the table of equivalent ratios.
Solution:
Let the missing value be x.
The ratios of apple and oranges are equivalent. So,
[tex]\dfrac{6}{10}=\dfrac{9}{15}=\dfrac{12}{x}[/tex]
[tex]\dfrac{3}{5}=\dfrac{3}{5}=\dfrac{12}{x}[/tex]
[tex]\dfrac{3}{5}=\dfrac{12}{x}[/tex]
On cross multiplication, we get
[tex]3\times x=12\times 5[/tex]
[tex]3x=60[/tex]
Divide both sides by 3.
[tex]x=20[/tex]
Therefore, the missing value is 20.
Answer:
20
Step-by-step explanation:
hope it helps
Please help and explain why you got it right please
Answer:
y+7 = -3 ( x-4)
Step-by-step explanation:
First find two points on the graph to find the slope
( 1,2) and ( 3,-4)
The slope is given by
m = ( y2-y1)/(x2-x1)
m = ( -4-2)/(3-1)
= -6/2
=-3
We can use the point slope form
y - y1 = m(x-x1) where m is the slope and x1,y1 is a point on the line
We have two choices with a slope of -3
We can either use and x coordinate of -2 or 4
for -2, the y coordinate is not shown
for 4 , the y coordinate is -7
Using ( 4, -7) and m = -3
y--7 = -3( x- 4)
y+7 = -3 ( x-4)
Answer:
A
Step-by-step explanation:
We want to write the equation of the line as shown in the graph.
First and foremost, we should find the slope of the line. To do so, we will pick two points that the line crosses.
We see that the line crosses the points (0, 5) and (2, -1). Now, we can use the slope formula:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Let (0, 5) be (x₁, y₁) and let (2, -1) be (x₂, y₂). Substitute:
[tex]m=\frac{-1-5}{2-0}[/tex]
Subtract and reduce. So, our slope is:
[tex]m=-6/2=-3[/tex]
Therefore, our slope is -3.
Now, we can use the point-slope form to find the equation. Point-slope form is:
[tex]y-y_1=m(x-x_1)[/tex]
Where m is our slope and (x₁, y₁) is any point the line crosses.
First, since we already know that our slope is -3, let's substitute -3 for m:
[tex]y-y_1=-3(x-x_1)[/tex]
So, we can eliminate choices C and D since the slope of those equations is 3 and not -3.
Now, we need to pick our (x₁, y₁). Let's go through the answer choices A and B to see which one is correct.
For A, we have:
[tex]y+7=-3(x-4)[/tex]
We can rewrite this as:
[tex]y-(-7)=-3(x-(4))[/tex]
Therefore, in A, our point is (4, -7).
Now, check. Does our line actually pass through (4, -7).
From the graph, we can see that it does. Therefore, A is our correct answer!
However, let's do B just to confirm. For B, we have:
[tex]y+1=-3(x+2)[/tex]
We can rewrite this as:
[tex]y-(-1)=-3(x-(-2))[/tex]
So, our point is (-2, -1).
Does our line pass through (-2, -1)?
Upon inspection, our line does not pass through (-2, -1). So, B is not correct.
So, our answer is A.
And we're done!
graph the line 8x + 2y =16
Answer:
use Desmos its a graphing calculator
Step-by-step explanation:
Jazz draws a transversal, t, on two parallel lines AB and CD, as shown below:
1.) x – 12.06 = -9.4
plz help
Write the product as a power:
(a–b) (a–b)
Answer:
(a - b)²
Step-by-step explanation:
We are given 2 (a - b) terms.
We can rewrite this as (a - b)².
PLS ANSWER THE QUESTION QUICK
-(-(-(0.75))) =
a. -3/4
b. 3/4
c. -4/3
d. 4/3
Five times the sum of a number and eight is thirty. Find the number.
Answer:
x = -2
Step-by-step explanation:
Let x be the number:
5(x + 8) = 30Apply the distributed property, so it now looks like this: 5x + 40 = 30Subtract 40 from each side, so it now looks like this: 5x = -10Divide each side by 5 to cancel out the 5 next to x. It should now look like this: x = -2I hope this helps!
The larger of two numbers is one more than four times the smaller number . If the sum of the numbers is 61, find the numbers.
Step-by-step explanation:
Let the smaller number be x.
So, according to Question,
the larger number will be 1+4x.
Now, sum of the numbers is 61, like this:-
[tex]1 + 4x + x = 61[/tex]
[tex]5x = 61 - 1[/tex]
[tex]5x = 60[/tex]
[tex]\tt{x = \dfrac{60}{5}}[/tex]
[tex]\boxed{\tt{x = 12}}[/tex] is the required Answer.
Hope it helps :)
Multiply
g(x) = x2 + 3x
h(x) = 2x - 2
Find (g* h)(2)
Answer:
10
Step-by-step explanation:
At first, (goh)(x)= g{h(x)}
= g{2x-2}
={2x-2}^2 +3x
[tex] = 4 {x}^{2} - 8x + 4 + 3x \\ = 4 {x}^{2} - 5x + 4 \\ then \: \:(goh)(2) = 4 \times {2}^{2} - 5 \times 2 + 4 \\ = 16 - 10 + 4 \\ = 10[/tex]
hope u got it.....
6th grade math I mark as brainliest
Answer:
C. 8,034
Step-by-step explanation:
26 x 309 = 8,034
(-m2 + 6) + (-4m2 + 7m + 2) =
Answer:
−5m² + 7m + 8
Explanation:
−m² + 6 − 4m² + 7m + 2
= −m² + 6 + −4m² + 7m + 2
[ Combine Like Terms ]
= −m² + 6 + −4m² + 7m + 2
= ( −m² + −4m²) + (7m) + (6 + 2)
= −5m² + 7m + 8
what is the equation of the line that passes through (-1,-4) and (9,-5) ?
Answer:
y=-1/10 x - 41/10
Step-by-step explanation:
slope: y2-y1 / x2-x1 = -5-(-4) / 9-(-1) = -1/10
y= -1/10 x +b, substitute (-1,-4) to solve b
-4=-1/10 (-1) +b
b=-41/10
are angles 1 and 4 vertical?
Answer:
vertical 5
Step-by-step explanation:
greg is working on a school project
Answer: Cool
Step-by-step explanation:
Greg is working on a school project
Answer:
noice
Step-by-step explanation:
How to find a rational function given 2 vertical asymptotes and an X intercept?
It’s question 20 by the way
Answer:
[tex]\frac{x-4}{(x+3)(x-5)}[/tex]
Step-by-step explanation:
Since the rational function has vertical asymptotes at -3, and 5, the denominator must equal 0 when x is -3 or 5. Therefore, the denominator must be:
(x+3)(x-5)
Now, to make the x-intercept at (4, 0), the numerator must be equal to 0 when x is 4. Therefore, the numerator must be:
x-4
Therefore, that rational function is:
[tex]\frac{x-4}{(x+3)(x-5_}[/tex]
The International Average Salary Income Database provides a comparison of average salaries for various professions. The data are gathered from publications and reports obtained directly from government agencies (such as the U.S. Bureau of Labor Statistics) or from the International Labour Organization. Suppose you are told that an accountant in Canada who makes $2, 646.00 has a z-score of +0.50 relative to other accountants in Canada and that the standard deviation of the salary of accountants in Canada is $588.00. The average salary, then, for accountants in Canada is _____. Suppose you are also told that an accountant in Portugal who makes $2, 329.40 has a z-score of +2.00 relative to other accountants in Portugal and that the mean of the salary of accountants in Portugal is $1, 553. The standard deviation of the salary, then, for accountants in Portugal is _____ .
Answer:
a)The average salary, then, for accountants in Canada is $2352
b) The standard deviation of the salary, then, for accountants in Portugal is $388.2
Step-by-step explanation:
The formula for calculating a z-score is is z = (x-μ)/σ,
where:
x is the raw score
μ is the population mean
σ is the population standard deviation.
a) Suppose you are told that an accountant in Canada who makes $2,646.00 has a z-score of +0.50 relative to other accountants in Canada and that the standard deviation of the salary of accountants in Canada is $588.00. The average salary, then, for accountants in Canada is _____.
z = (x-μ)/σ
z = 0.50, x =$2,646.00 μ = ?? σ = $588
Hence,
0.50 = 2,646 - μ/588
0.50 × 588 = 2,646 - μ
294 = 2,646 - μ
μ = 2,646 - 294
μ = $2352
Therefore, the average salary, then, for accountants in Canada is $2352
b) Suppose you are also told that an accountant in Portugal who makes $2, 329.40 has a z-score of +2.00 relative to other accountants in Portugal and that the mean of the salary of accountants in Portugal is $1, 553. The standard deviation of the salary, then, for accountants in Portugal is _____ .
z = (x-μ)/σ
z = 2, x = $2,329.40 μ =$1,553 σ = ?
2 = ($2,329.40 - $1,553)/σ
2σ = $2,329.40 - $1,553
σ = $2,329.40 - $1,553/2
σ = $776.4 /2
σ = $388.2
Therefore, the standard deviation of the salary, then, for accountants in Portugal is $388.2
In the game of roulette, a player can place a $ bet on the number and have a probability of winning. If the metal ball lands on , the player gets to keep the $ paid to play the game and the player is awarded an additional $. Otherwise, the player is awarded nothing and the casino takes the player's $. What is the expected value of the game to the player? If you played the game 1000 times, how much would you expect to lose?
Complete Question
The complete question is shown on the first uploaded image
Answer:
a
The expected amount to be lost is 0.5263 cents per game
b
The expected amount to be lost is
[tex]P = \$ 526 .3 [/tex]
Step-by-step explanation:
From the question we are told that
The probability of winning is [tex]p = \frac{1}{38} = 0.0263[/tex]
Generally the probability of losing is mathematically evaluated as
[tex]q = 1-p [/tex]
=> [tex]q = 1-0.0263 [/tex]
=> [tex]q = 0.9737[/tex]
Generally the expected value is mathematically represented as
[tex]E(X) = \sum x_i * P(x_i)[/tex]
Here [tex]x_i[/tex] is a discrete variable (i.e it is a countable ) are outcomes of the player winning and the player losing
So
[tex]E(X) = x_1 * P(x_1) + x_2 * P(x_2) [/tex]
Now the outcome of winning is making $350 so
[tex]x_1 = \$ 350[/tex]
the outcome of losing is losing $10 so
[tex]x_2 = - \$10[/tex]
So
[tex]E(X) = 350* 0.0263 -10 * 0.9737 [/tex]
[tex]E(X) = -0.5263 [/tex]
hence the expected amount to be lost is 0.5263 cents per game
If you played the game 1000 times, the amount that is expected to be lost is
[tex]P = 1000 * -0.5263[/tex]
=> [tex]P = -\$ 526 .3 [/tex]
Hence the expected amount to be lost is
[tex]P = \$ 526 .3 [/tex]