Help please maths please
Let u=-4i-5j and v=3i-6j
An airline reports that 94% of its flights arrive on time. What is the probability that a flight will be on time?
A. 16%
B. 47%
C. 6%
Answer:
[tex]P(flight \: will \: be \: on \: time) = 94\% \\ = \frac{94}{100} \\ 0.94[/tex]
(94-100)%= 6%
6% is the probability of a flight not arriving on time.
Answer:
Option C
Step-by-step explanation:
Evaluate the expression 43+ (7 - 3) x 2.
Answer:
51
Step-by-step explanation:
Answer: 51
Step-by-step explanation:
Use PEMDAS. First solve inside the parentheses. You will get 43 + (4) x 2. Then, do the multiplication (4x2). You will have 43+8. And that can be simplified to 51. Hope this helps!
MOON The expression gives the weight of an object on the Moon in pounds with a weight of w pounds on Earth. What is the weight of a space suit on the Moon if the space suit weighs 178.2 pounds on Earth?
Answer: 29.7 pounds
Step-by-step explanation:
The expression in question is w/6.
If the weight of an object on earth is w, the weight of the object on the moon is w/2.
The weight of the space suit is therefore:
= 178.2/6
= 29.7 pounds
write an equation of the line passing through the point (3,2) and is parallel to the line y=\frac{1}{3}x-3
need answer ASAP
Answer:
Equation of line passing through (3,2) and parallel to line [tex]y = \frac{1}{3}x-3[/tex] is:
[tex]y = \frac{1}{3}x+1[/tex]
Step-by-step explanation:
Given equation of line is:
[tex]y = \frac{1}{3}x-3[/tex]
Slope-intercept form of a line is given by:
[tex]y = mx+b[/tex]
Comparing the given equation of line with general form we get
m = 1/3
Let m1 be the slope of line parallel to given line
Then the equation of line will be:
[tex]y = m_1x+b[/tex]
We know, "Slopes of two parallel lines are equal"
Which means
[tex]m_1 = m\\m_1 = \frac{1}{3}[/tex]
Putting the value of slope
[tex]y = \frac{1}{3}x+b[/tex]
Putting the point (3,2) in the equation
[tex]2 = \frac{1}{3}(3)+b\\2 = 1+b\\b = 2-1\\b = 1[/tex]
Final equation of line is:
[tex]y = \frac{1}{3}x+1[/tex]
Hence,
Equation of line passing through (3,2) and parallel to line [tex]y = \frac{1}{3}x-3[/tex] is:
[tex]y = \frac{1}{3}x+1[/tex]
Show that 4x - x? – 7 is always
negative.
Help
Question No 7
Answer:
Please check the explanation.
Step-by-step explanation:
Show that 4x - x² - 7 is always negative.
Given
4x - x² - 7
4x - x² - 7 is always negative because:
-x²-7 will alwas be negative for all the values of x, The value of - x² - 7 will always be less than 4x for all the values of xHence, 4x - x² - 7 is always negative
For example,
let suppose we enter x = 1
[tex]4(1)-1^{2} -7\\=4-1-7\\=4-8\\=-4[/tex]
let suppose we enter x = -1
[tex]4(-1)-(-1)^{2} - 7\\= -4 - 1 - 7\\= -12[/tex]
PLEASE HELP ME!
Describe the slope of the line.
I need help with a math question
Which property is illustrated? 8(a + c) – 8a+ 8c
Answer:
commutative property
Step-by-step explanation:
for brainly and points
Answer:
C
Step-by-step explanation:
Given
[tex]\frac{2}{3}[/tex] m + 5 = 17 ( subtract 5 from both sides )
[tex]\frac{2}{3}[/tex] m = 12 ( multiply both sides by 3 to clear the fraction )
2m = 36 ( divide both sides by 2 )
m = 18 → C
Answer:
C
Step-by-step explanation:
2/3X18=6+5=11
what is 3/7 divided by 33?
Answer:
3/231 can be simplified to 1/77.
Step-by-step explanation:
can some one help me. btw the answer is not C.
Answer:
A
Step-by-step explanation:
Given
x² + 6x
To complete the square
add ( half the coefficient of the x- term )² to x² + 6x
x² + 6x + (3)²
= x² + 6x + 9
= (x + 3)²
simplify 3 to the 2nd power + 1 x 2
Answer: The answer is 20
Step-by-step explanation:
[tex]\huge\text{Hey there!}[/tex]
[tex]Equation:[/tex]
[tex]\rm{3^2 + 1\times 2}[/tex]
[tex]Simplifying:[/tex]
[tex]\rm{3^2 + 1\times 2}[/tex]
[tex]\rm{= 3\times 3+ 1\times 2}[/tex]
[tex]\rm{= 9 + 1\times2}[/tex]
[tex]\rm{= 9 + 2}[/tex]
[tex]\rm{= 11}[/tex]
[tex]Therefore, your\ answer\ should\ be:[/tex]
[tex]\huge\boxed{\frak{11}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Here is a set of signed numbers: 7, -3, LaTeX: \frac{1}{2}1 2, -0.8, 0.8, LaTeX: -\frac{1}{10}− 1 10, -2 Order the numbers from least to greatest. Group of answer choices 7, 0.8, 1/2, -1/10, -0.8, -2, -3 -3, -2, -0.8, -1/10, 1/2, 0.8, 7 -1/10, 1/2, -0.8, 0.8, -2, -3, 7
Answer:
[tex]-3, -2, -0.8, -\frac{1}{10} ,\frac{1}{2}, 0.8, 7[/tex]
Step-by-step explanation:
Given
[tex]7, -3, \frac{1}{2}, -0.8, 0.8, -\frac{1}{10}, -2[/tex]
Required
Order from least to greatest
[tex]7, -3, \frac{1}{2}, -0.8, 0.8, -\frac{1}{10}, -2[/tex]
Convert 1/2 and -1/10 to decimals
[tex]7, -3, 0.5, -0.8, 0.8, -0.1, -2[/tex]
Negative numbers are always the least of all numbers.
In the given list, the negative numbers are:
[tex]-3, -0.8, -0.1, -2[/tex]
The higher the magnitude of a negative number, the smaller it is.
--------------------------------------------------------------------------------------------
Take for instance: -7 and -8.
-8 has a magnitude of 8 and -7 has a magnitude of 7.
Because 8 > 7 (the magnitudes), then
-8 < -7
--------------------------------------------------------------------------------------------
Using the above analysis:
[tex]-3, -0.8, -0.1, -2[/tex] from least to greatest is:
[tex]-3, -2, -0.8, -0.1[/tex]
Considering the positive numbers:
[tex]7, 0.5, 0.8[/tex]
From least to greatest, it is:
[tex]0.5, 0.8, 7[/tex]
Merge the negative and the positive numbers:
[tex]-3, -2, -0.8, -0.1,0.5, 0.8, 7[/tex]
Convert 0.5 and -0.1 back to fractions
[tex]-3, -2, -0.8, -\frac{1}{10} ,\frac{1}{2}, 0.8, 7[/tex]
select the table that represents a linear function
A.
B.
C.
D.
which one PLEASE HELP
Answer:
The answer is D.
Step-by-step explanation:
I need help on these 3 questions please!
Answer:
3/4*4=3
3/5*6=3.6
2/6*5=1.7
y=-2x+4 Complete the missing value in the solution to the equation. (_, -2) NO work SHOWN JUST GET IT RIGHT QUICK!!!
Answer:
i believe the missing value is (3,-2)
Step-by-step explanation:
plz give me brainlyest
Luci Lulu opened a cookie store in the mall. She found that the relationship between the price of a cookie, p, and the number of cookies sold, x, is given by the linear relationship x = −2000 p + 4000 .
Answer:
a. The maximum revenue Luci can make selling cookies in one day is $2,000.
b. The price she should sell the cookies for her to make the maximum revenue is $1.
Step-by-step explanation:
Note: This question is not complete. The complete question is therefore provided before answering the question as follows:
Luci Lulu opened a cookie store in the mall. She found that the relationship between the price of a cookie, p, and the number of cookies sold, x, is given by the linear relationship x = −2000 p + 4000. Find the maximum revenue Luci can make selling cookies in one day. Find the price she should sell the cookies for to make the maximum revenue.
The explanation of the answer is now provided as follows:
Given;
x = −2000p + 4000 …………………………. (1)
The revenue function is obtained as follows:
R = px ……………………….. (2)
Substitute equation (1) into (2), we have:
R = p(−2000p + 4000)
R = −2000p^2 + 4000p ……………… (3)
Obtain the derivative of equation (3), set to zero and solve for p, we have:
−4000p + 4000 = 0
4000 = 4000p
p = 4000 / 4000
p = 1
From the above, p = 1 implies that the price that ensure maximum revenue is $1.
We can now answer as follows:
a. Find the maximum revenue Luci can make selling cookies in one day.
Since p = 1 implies that the price that ensure maximum revenue is $1, we then substitute p = 1 into equation (3) as follows:
R = (−2000 * 1^2) + (4000 * 1)
R = (−2000 * 1) + (4000 * 1)
R = −2000 + 4000
R = 2000
Therefore, the maximum revenue Luci can make selling cookies in one day is $2,000.
b. Find the price she should sell the cookies for to make the maximum revenue.
Since p = 1 implies that the price that ensure maximum revenue is $1 as obtained above, it therefore implies that the price she should sell the cookies for her to make the maximum revenue is $1.
Right answer only pleaseeee
Answer:
A,C,E
Step-by-step explanation:
Answer:
B. n ≥ -24.
D. The circle is closed.
E. The arrow points right.
Step-by-step explanation:
Step 1: Multiply both sides by -3/2, the reciprocal of -2/3. Since -2/3 is negative, the inequality direction changes.
(-2/3 * -3/2)n ≤ 16(-3/2)
n ≥ 16(-3/2)
Step 2: Express 16(-3/2) as a single fraction.
n ≥ 16(-3)/2
Step 3: Multiply 16 by -3 to get -48.
n ≥ -48/2
Final Step: Divide -48 by 2 to get -24.
n ≥ -24 is the final answer.
With inequalities that have this (≥), the circle should be closed (D) and the arrow goes right (E).
Kelly is designing a logo for a company. She creates the four-sided
figure PBAC, as shown. Then, she creates an image of figure
PBAC by rotating it 90 degrees clockwise about point P to create
figure PB' A'C'. Then, she performs the same rotation to create
image PB''A''C'.
Solve for x over the real numbers:
x^2 - 10 x - 27 = 0
Hint: | Solve the quadratic equation by completing the square.
Add 27 to both sides:
x^2 - 10 x = 27
Hint: | Take one half of the coefficient of x and square it, then add it to both sides.
Add 25 to both sides:
x^2 - 10 x + 25 = 52
Hint: | Factor the left hand side.
Write the left hand side as a square:
(x - 5)^2 = 52
Hint: | Eliminate the exponent on the left hand side.
Take the square root of both sides:
x - 5 = 2 sqrt(13) or x - 5 = -2 sqrt(13)
Hint: | Look at the first equation: Solve for x.
Add 5 to both sides:
x = 5 + 2 sqrt(13) or x - 5 = -2 sqrt(13)
Hint: | Look at the second equation: Solve for x.
Add 5 to both sides:
Answer:
x = 5 + 2√(13) or x = 5 - 2√(13)
if i add negative 2 + negative 9 and then divide 2 what do i get
Answer:
-6.5
Step-by-step explanation:
-2 + -9 =-11 ÷2=-6.5
Answer:
Depends. If you were asking 2+-9/2, according to the rules of PEMDAS it would be -2.5 but by the way you wrote that, I'm assuming you meant (2+-9)/2 which is -3.5.
DETERMINE THE MISSING SIDE
Answer:
21 in
Step-by-step explanation:
by the Pythagorean theorem we have
[tex]841=400+x^2\\\\x^2=441\\\\x=21[/tex]
notice that the 841 and the 400 don't go squared because they already squared!
PLEASE HELP ME WITH THIS
Gwen borrows $300 from her parents to buy a bike. She agrees to pay them back with 3% simple interest every month for one year. What is the total amount of money Gwen will owe her parents? *
Just enter the numerical portion of your answer - no dollar signs or change needed!
Answer:
408
3 percent of 300 is 9.
So it is $9 every month times 12 months
is equal to 108 so add the 300 on top of the 108 = 408
Step-by-step explanation:
Which attribute is shared by both squares and trapezoids?
A) 4 sides
B) 4 right angles
C) All sides of equal length
D) 2 sets of parallel sides
Which multiplication and addition problem can help you check your work for 5 ÷ 4 * 1 point 2 x 1 = 2, 2 + 3 = 5 4 x 1 = 4, 4 + 1 = 5 4 x 1 = 4, 4 + 5 = 9 3 x 1 = 3, 3 + 2 = 5
Answer:don't know
Step-by-step explanation:
4 f = 64
Answer:
f=?
Answer ? Mark pls
Answer:
F=16
Step-by-step explanation:
Maggie saves money in a jar over a period of 5 weeks, as shown in the table.
A. S = 1.50w + 2.50
B. S = 2.50w + 1.50
C. S = w - 0.50
D. S = w +2.50
*PLEASE HELP* I NEED TO FINISH THIS IN 30 MINUTES (I’ll give brainlist)
Answer:
A
Step-by-step explanation:
Answer:
C i think it's C but im not really sure
what is the volume of a cylinder with a a radius of 9 inches and a hirght of 2 inches? use 3.24 for pie. round your answer to the nearest hundredth
Answer:
To answer this u need the formula v=pi r^2h. Since r=9 and h= 2, we could solve the equation by plugging in the variables. v= (3.14)(9)^2(2) is equal to 508.94