In January 2020 oil price was $1251 but in April 2020 the price was $1902. What is the percent increase or decrease.
Write your answer without the % to the nearest tenths
which expression is equivalent to 2^5*2^x?
simplify (b-a)U(c-a)?
Answer:
Step-by-step explanation:
What’s the Square root of 13.33
Answer:
3.65102725271
Step-by-step explanation:
Niki wants to buy all the fruits as shown on the menu. If she gets a discount of $50 off the cost of the Cherry and $25 each off the remaining fruits, how much will Niki pay after the discounts?
fruit menu
fruits. Quality. cost
1.cherry 11b. $150
2.bananas ¼ doz. $200
3.watermelon. 11b. $125
mangos. each. $ 75
Answer:
Niki will pay $425 after the discounts.
Step-by-step explanation:
Cherry originally costs 150$, and you can subtract the discount of 50$ from that to get 100$ total for cherries.
Banana originally costs 200$, and you can subtract the discount of 25$ from the original cost to get 175$ total for bananas.
Watermelon originally costs 125$, and after subtracting the discount of 25$, you can determine the total cost for watermelons, which is 100$.
Mangoes originally costs 75$, subtract the discount of 25$, and you get the total for mangoes at 50$.
Add the costs after discounts (100$ for cherry, 175$ for banana, 100$ for watermelon, 50$ for mangoes), and you get 425$, which is the total cost for the fruit after discounts.
line passing through points (3,5) with a slope of 1
Write equation of the line in point-slope, slope- intercept, and standard form.
The linear equation with a slope of 1 that passes through (3, 5) is:
y = x + 2.
How to get the linear equation?
The general linear equation is given by:
y = a*x + b
Where b is the y-intercept and a is the slope.
Here we know that the slope is 1, so we have:
y = x + b
And we also know that the line passes through (3, 5), then we must have that:
5 = 3 + b
We can solve that for b:
b = 5 - 3 = 2
So the linear equation is:
y = x + 2.
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Silver Springs Moving and Storage Inc. is studying the relationship between the number of rooms in a move and the number of labor
hours required for the move. Compute a correlation coefficient.
Rooms
Labor hours
Labor hours
Rooms
2.5
1
3
17
1
15
3
18
ed
1.5
35
1.5
28
2
19
33
9
40
ok
5
int
ences
8
16
17
2
15
2.5
16
2.5
24
3
3.5
4
4.5
5
The correlation coefficient of the dataset on the table is 0.8271
How to compute a correlation coefficient?See attachment for the proper table that represents the relationship
Next, we compute a correlation coefficient using a graphing calculator.
The graphing calculator has the following calculation summary:
X Values
∑ = 39.5Mean = 2.633∑(X - Mx)² = SSx = 20.733Y Values
∑ = 304Mean = 20.267∑(Y - My)² = SSy = 1410.933X and Y Combined
N = 15∑(X - Mx)(Y - My) = 141.467The correlation coefficient is calculated using:
[tex]r = \frac{\sum((X - \bar y)(Y - \bar x)) }{ \sqrt{(SSx)(SSy)}}[/tex]
So, we have:
[tex]r = \frac{141.467}{\sqrt{(20.733) * (1410.933)}}[/tex]
Evaluate
r = 0.8271
Hence, the correlation coefficient is 0.8271
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An angle measures 150.8° more than the measure of its supplementary angle. What is the measure of each angle?
Answer:
14.6°, 165.4°
Step-by-step explanation:
We can say that x is the supplementary angle and x + 150.8 is the other angle
Supplementary angles add up to 180°
x + x + 150.8 = 180
2x = 29.2
x = 14.6 | we found one of the angles
x + 150.8 = 165.4 | find the other angle
Two cars travel at the same speed to different destinations. Car A reaches its destination in 17 minutes. Car B reaches its destination in 32 minutes. Car B travels 25.6 miles and Car A travels 13.6 miles. How fast do the cars travel?
3x-4y=0 2x+y=110 no solution
Answer:
(x, y) = (40, 30)
Step-by-step explanation:
A graphing calculator can show you the solution to this system of equations is (x, y) = (40, 30). That is the point of intersection where the two lines cross.
__
An algebraic solution can be found by using the substitution method. An expression for y can be found using the second equation:
y = 110 -2x . . . . . . subtract 2x from both sides
Using this in the first equation gives ...
3x -4(110 -2x) = 0 . . . . substitute for y
11x = 440 . . . . . . . . . simplify, add 440
x = 40 . . . . . . . . . . divide by 11
y = 110 -2(40) = 30
The solution is (x, y) = (40, 30).
Point M(4, 3) is translated according to the rule (x,y) → (x+2, y-5). What are the coordinates of M'?
Answer: (6,-2)
Step-by-step explanation:
[tex]M'=(4+2, 3-5)=\boxed{(6,-2)}[/tex]
Write the measure in degrees.
Hi Student!
Looking at the question, we are given a fraction that has a pi symbol. We learn in trigonometry that a whole circle is made up of 2 * pi and we know that a circle is 360 degrees. That means that just having pi means that we have 180 degrees.
Therefore, looking at the fraction that was given to us, we can basically interpret it as 180 degrees / 4. That will give us a solution of 45 degrees which is our final answer.
Answer:
[tex]45^{\circ}[/tex]
Step-by-step explanation:
[tex]\dfrac{\pi}4 = \left(\dfrac{\pi }{4} \times \dfrac{180}{\pi} \right)^{\circ} = \left( \dfrac{180}4 \right)^{\circ} = 45^{\circ}[/tex]
After sinéad lost 20% of her money, she had $1600 left. How much money did sinead lose?
Answer:
x - beginning money
x - .20x = 1,600
.80x = 1.600
Original money = 2,000
Therefore, Sinead lost $400.00
Step-by-step explanation:
What does 2 3/4 x 2 add all together?
Step-by-step explanation:
its confusing the way the numbers are placed. But..
if the question is 2 whole number times 3 ÷4x2
=2×3/4×2
=6/8
=3/4
if it's 2 whole number, 3/4 fraction, multiplied by 2
2³/⁴ × 2
=4×2+3=11/4
=11/4 ×2
=11/2 or 5 1/2
GIVING BRAINLIEST AND MAX POINTS! ANSWER ASAPPP! The initial velocity of a projectile is 217 ft/sec, and the firing angle is 12°. Calculate the horizontal distance.
a
599 feet
b
699 feet
c
499 feet
d
799 feet
Answer:
a) 599 feet
Step-by-step explanation:
** As the measure of distance is in feet, we must use the value of gravity in ft/s² **
Constant Acceleration Equations (in ft)
s = displacement in ftu = initial velocity in ft/sv = final velocity in ft/sa = acceleration in ft/s²t = time in s (seconds)Assuming that the projectile is fired at an angle of 12° above the horizontal.
Consider the vertical and horizontal motion separately.
Vertical motion
First, find time by resolving vertically, taking up as positive and
g = 32 ft/s²
[tex]\begin{aligned}\textsf{Using}\quad s & =ut+\dfrac{1}{2}at^2\\\implies 0 & = 217 \sin 12^{\circ}t+\dfrac{1}{2}(-32)t^2\\0 & = 217 \sin 12^{\circ}t-16t^2\\t(16t-217 \sin 12^{\circ}) & = 0\\16t & = 217 \sin 12^{\circ}\\t & = \dfrac{217 \sin 12^{\circ}}{16}\\t & = 2.819802307...\: \sf s\end{aligned}[/tex]
Horizontal motion
Resolving horizontally, taking right as positive:
(The horizontal component of velocity is constant, as there is no acceleration horizontally)
s = su = 217 cos 12°v = 217 cos 12°a = 0t = 2.819802307...[tex]\begin{aligned}\textsf{Using}\quad s & =ut+\dfrac{1}{2}at^2\\\implies s & = (217 \cos 12^{\circ})(2.819802307...)+\dfrac{1}{2}(0)t^2\\& =598.5256808...\end{aligned}[/tex]
Therefore, the horizontal distance is 599 ft (nearest foot)
Question 2 of 40
If a population is.
a sample of the population could be
A. 6th grade students whose last name begins with "T"; all students
in 6th grade
B. people in the front row; the entire audience
C. all the people at the park; the kids on the playground
о
D. trees over 20 feet tall; the entire forest
All of these can be samples but the best example is 6th grade students whose last name begins with "T"; all students in 6th grade
What is a sample?A sample refers to a small portion of a population. Most samples are selected randomly to make sure the sample represents all the population but they can also be selected based on a specific criterium.
What is one example of a sample?One example of this concept is 6th grade students whose last name begins with "T"; all students in 6th grade because the student whose last name begins with "T" are a fraction of all the population. Moreover, they are more likely to represent all the population.
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URGENT which of the following linear equations represents the data chart
Answer:
y = -x + 7
Step-by-step explanation:
y = x + 5 works for the first row, but fails for the rest.
y = x + 3 fails for the first row
y = -x + 7 works for the first row ( -1 + 7 = 6)
It works for the second row ( -2 + 7 = 5)
It works for the third row ( -3 + 7 = 4)
And it works for the final row ( -4 + 7 = 3)
What do you call a line segment which passes throughthe center of the circle from on side to the other?
[tex]{\large{\red{\mapsto{\maltese{\underline{\green{\boxed{\blue{\underbrace{\overbrace{\pink{\pmb{\bf{Answer:}}}}}}}}}}}}}}[/tex]
DiameterAnswer:
diameter of the circle
Step-by-step explanation:
A chord that passes through a circle's centre is a diameter of the circle.
A rectangle has a width that measures 11 in. and a length that measures 5.5 in.
Determine the area of the rectangle.
Answer: 60.5 in
Step-by-step explanation:
Area of rectangle = length times width
Length = 5.5 in
Width = 11 in
11 x 5.5 = 60.5
The area of the rectangle is 60.5 in
how to calculate annuity
Answer:
The formula for determining the present value of an annuity is PV = dollar amount of an individual annuity payment multiplied by P = PMT * [1 – [ (1 / 1+r)^n] / r] where: P = Present value of your annuity stream. PMT = Dollar amount of each payment. r = Discount or interest rate.
Step-by-step explanation:
Hope this helps :) :)
Two angles are complementary. One angle measures (x+15) degrees and the other angle measures 40 degrees solve for x
Answer:
x = 35
Step-by-step explanation:
Complementary angles refers to a pair of angles which add up to make a 90° right angle.
Lets assume them as Angle A And Angle B.
Angles A = 40°
Angles B = x+15
Angle A + Angle B = 90°
40+15+x = 90°
x = 90 - 55
x = 35°
So, x = 35°
fractions were never my strong suit can anyone help?
Answer:
See below ~
Step-by-step explanation:
Find the decimal values of the fractions on each side :
Left side Right side
⇒ 4/10 = 0.4 ⇒ 2/5 = 0.4
⇒ 1/2 = 0.5 ⇒ 9/12 = 0.75
⇒ 1/4 = 0.25 ⇒ 2/8 = 0.25
⇒ 3/4 = 0.75 ⇒ 5/10 = 0.5
Hence, the matched fractions are :
4/10 ↔ 2/5
1/2 ↔ 5/10
1/4 ↔ 2/8
3/4 ↔ 9/12
Answer:
Step-by-step explanation:
Please help quickly
AB=AD and BC=DC
x=?
Answer:
x = 110
Step-by-step explanation:
measure of abd is 35, meaning adb is also 35.
so dab + abd + adb is 180
=> x + 35 + 35 = 180
=> x + 70 = 180
=> x = 180-70
=> x = 110
110 degrees is the value of x.
Match the trigonometric ratios with their values based on the triangle shown in the diagram.
The trigonometric ratios with their values are based on the triangle will be sin D = 4 / 5, sin C = 3 / 5, sin D x cos D = 12 / 25, tan C x tan D = 1, and cos C x tan D = 16 / 15.
What is trigonometry?The connection between the lengths and angles of a triangular shape is the subject of trigonometry.
The triangle is given below.
Then the trigonometric ratios with their values are based on the triangle shown in the diagram and will be
sin D = 4 / 5
sin C = 3 / 5
sin D x cos D = 4 / 5 x 3 / 5
sin D x cos D = 12 / 25
tan C x tan D = 3 / 4 x 4 / 3
tan C x tan D = 1
cos C x tan D = 4 / 5 x 4 / 3
cos C x tan D = 16 / 15
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Is the following statement true? Justify your answer to get credit: “If X1, · · · , Xn are independently distributed, then for large enough n, the central limit theorem says that the sample mean Xn has a normal distribution.”
Using the Central Limit Theorem, it is found that the statement is true, as for sample sizes of 30 or more, the sampling distribution of sample means is normal.
What does the Central Limit Theorem state?It states that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the sampling distribution is also approximately normal, as long as n is at least 30.
Hence, the statement is true, as for sample sizes of 30 or more, the sampling distribution of sample means is normal, no matter the underlying distribution of the variable.
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Simplify 2x - 4) + 7(x + 2).
9x + 6
9x - 4
09x - 6
John plots the point with the polar coordinates (3,5π6).
How does he plot this point?
Drag a value or phrase into each box to correctly complete the statements.
John first determines which line the angle of rotation places the point on. This line tells John that the point must lie in if r is positive or Response area if r is negative.
The radius of 3 tells John that the point lies on the third circle of the polar plane. The value of r is positive. Therefore, the point will lie Response area the angle of rotation.
This line tells John that the point must lie in Quadrant 1 if r is positive or Quadrant 2 if r is negative. Therefore, the point will lie Quadrant 3 or 4 the angle of rotation.
How to find Polar Coordinates?
Step 1; John will start plotting the point by first of all seeing the sign of the radius and the value of the given angle.
Step 2; John will make a circle of the given radius, and plot the point at an angle given as a coordinate on the circle.
If r is positive, then the point will lie in Quadrant 1 or 2. However, If r is negative, then the point will lie in Quadrant 3 or 4.
In case r is positive, the point will lie in the same quadrant as the angle of rotation.
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PLEASE HELP ASAP
What is an equation of the line that passes through the points (3, 2) and (6, -3)?
Answer:
(y+2)=2(x−3)
Or
(y−4)=2(x-6)
Or
y=2x−8
Step-by-step explanation:
Answer:
[tex]y= -\dfrac{5}{3} x+7[/tex]
In order to find equation:
Find slope:
[tex]\sf slope: \dfrac{y_2- y_1}{x_2 -x_1} = \dfrac{rise}{run}[/tex] where (x1, y1), (x2, y2)
[tex]\hookrightarrow \sf slope: \dfrac{-3-2}{6-3}[/tex]
[tex]\hookrightarrow \sf slope:- \dfrac{5}{3}[/tex]
Find Equation:
[tex]\boxed{\sf y - y_1 = m(x_1 -x)}[/tex] "m" is slope
[tex]\sf \rightarrow y-2 = -\dfrac{5}{3} (x-3)[/tex]
[tex]\sf \rightarrow y-2 = -\dfrac{5}{3} x+5[/tex]
[tex]\sf \rightarrow y= -\dfrac{5}{3} x+5+2[/tex]
[tex]\sf \rightarrow y= -\dfrac{5}{3} x+7[/tex]
A bookshelf contains 9 mysteries, 7 biographies, and 4 science fiction books. If a book is selected at random. What is the probability of selecting a biography or a mystery?
The probability of selecting a biography or a mystery is 0.8
How to get the probability?
We assume that all the books have the same probability of being randomly selected.
The probability of getting a particular type of book is given by the quotient between the number of these books and the total number of books.
Here we want to find the probability of selecting a biography or a mystery, there are 9 mysteries and 7 biographies, and a total of 20 books in the shelf, so the probability is:
P = (7 + 9)/20 = 16/20 = 4/5 =0.8
The probability is 0.8
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There are three different colored candies:
red, green, and white. The probability of
selecting a red candy is 2/5 and the probability
of selecting a green candy is 1/4 What is the
probability of selecting a white candy?
PLEASE HELP
Answer:
7/20
Step-by-step explanation:
add the probabilities together and minus it by the LCM which is 20