If 85% of a number is 17, then what is 60% of that number
Answers
Related Questions
20i + 5i=
a.15i
b.25i
c.20i
Answers
when a number has an "I" in it it is an imaginary number. You get an imaginary number by taking a square root of a negative number. (or other even index root) For example: sqrt-4= +-2i
You would add and subtract these just like any other like terms. 20x + 5x = 25x
Where imaginary numbers differ is when !multiplying and dividing. i * i = -1
I hope this helps.
In triangle QRS, QR = 8 and RS = 5. Which expresses all possible lengths of side QS?
Answers
Answer:
[tex]3<QS<13[/tex]
Step-by-step explanation:
We have been given that in triangle QRS, [tex]QR=8[/tex] and [tex]RS=5[/tex]. We are asked to find the possible lengths of side QS.
We will use triangle inequality theorem to solve for QS.
Triangle inequality theorem states that sum of two sides of triangle must be greater than third side.
[tex]QS+RS>QR[/tex]
[tex]QS+5>8[/tex]
[tex]QS+5-5>8-5[/tex]
[tex]QS>3[/tex]
[tex]QS<RS+QR[/tex]
[tex]QS<5+8[/tex]
[tex]QS<13[/tex]
Upon combining both solutions, we will get:
[tex]3<QS<13[/tex]
Therefore, the solution [tex]3<QS<13[/tex] expresses all possible lengths of side QS.
Answer:
3<QS<13
Step-by-step explanation:
edg 2021
You are designing a rectangular poster to contain 50 in^2 of printing with a 4 in. margin at the top and bottom and a 2 inch margin at each side. What overall dimensions will minimize the amount of paper used? ...?
Answers
To minimize the amount of paper used for a rectangular poster with 50 square inches of printing area and specified margins, the overall dimensions should be approximately 9.59 inches in width and 16.95 inches in height.
To find the overall dimensions of the rectangular poster that minimize the amount of paper used, let's start by stating the problem mathematically. The poster must contain 50 square inches of printing area. The poster has margins of 4 inches at the top and bottom, and 2 inches on each side.
Let the dimensions of the printing area be width w and height h. Therefore, we know:
w * h = 50 square inches
Including the margins, the overall dimensions of the poster will be:
Overall width = w + 2 + 2 = w + 4Overall height = h + 4 + 4 = h + 8We aim to minimize the total area of the poster including the margins, which is given by:
A = (w + 4)(h + 8)
From the constraint w * h = 50, we can express h in terms of w as follows:
h = 50 / w
Substituting this into the total area formula:
[tex]A(w) = (w + 4)igg(rac{50}{w} + 8igg) = (w + 4)(rac{50}{w} + 8)[/tex]
To minimize A(w), we take the derivative with respect to w and set it to zero. This involves some calculus:
First, expand the equation:A(w) = 50/w + 8w + 200/w + 32Simplify to A(w) = 250/w + 8w + 32Take the derivative dA/dw and set it to zero:
dA/dw = -250/w² + 8 = 0
Solving for w:
-250/w² = -8
w² = 250/8 = 31.25
w = √31.25 ≈ 5.59 inches
Using the constraint w * h = 50:
h = 50/w = 50/5.59 ≈ 8.95 inches
Therefore, the overall dimensions of the poster are:
Width: w + 4 ≈ 5.59 + 4 ≈ 9.59 inchesHeight: h + 8 ≈ 8.95 + 8 ≈ 16.95 inchesThus, to minimize the amount of paper used, the overall dimensions should be approximately 9.59 inches by 16.95 inches.
Solve the equation algebraically.
e^(.05t)=3 ...?
Answers
ln(e^.05t)=ln(3)0.05t=ln(3)t=ln(3)/(0.05)
A rocket car on the bonneville salt flats is traveling at a rate of 640 miles per hour. How much time would it take for the car to travel 384 miles at this rate?
Answers
Answer:
0.6 hour or 36 minutes
Step-by-step explanation:
We can use proportion to solve this problem.
640 miles = 1 hour
384 miles = x
cross-multiply
640 x = 384
Divide both-side of the equation by 640
[tex]\frac{640x}{640}[/tex] = [tex]\frac{384}{640}[/tex]
(On the left-hand side of the equation 640 at the numerator will cancel-out 640 at the denominator, while on the right-hand side of the equation 384 will be divided by 640)
x = [tex]\frac{384}{640}[/tex]
x = 0.6 hour
or
x = 0.6×60 = 36 minutes
Therefore the time it would take the car to travel 384 miles is 0.6 hour or 36 minutes
Mikel traded Australian dollars for Thai baht at an exchange rate of 1 Australian dollar = 29.3225 Thai baht. He gave the exchanger a total of $1900 and was charged a flat fee of $40. Approximately how many Thai baht does Mikel have?
Answers
1860 x 29.3225 = 54539.85
Answer:
The answer is 54539.85 Thai baht.
Step-by-step explanation:
1 Australian dollar = 29.3225 Thai baht.
Mikel gave the exchanger a total of $1900 and was charged a flat fee of $40.
As he was charged a fee so we will subtract it from the original amount.
[tex]1900-40=1860[/tex] Australian dollars
So, this amount in Thai baht becomes:
[tex]1860\times29.3225=54539.85[/tex] Thai baht.
The answer is 54539.85 Thai baht.
what is a expression that represents the sum of 7 and x
Answers
expressions are things without equal signs.
what is the greatest common factor of 34 and 51
Answers
The Greatest Common Factor of 34 and 51 is 17.
What is Greatest Common Factor?The greatest common factor is the largest number that is a factor of two or more numbers (GCF). The greatest number (factor) divides them, yielding a Natural number. Once all of the number's variables have been identified, there are a handful that are shared by both. The greatest common factor is the largest number found among the common factors. The GCF is often referred to as the Highest Common Factor (HCF)
Given:
We have to find the greatest common factor of 15 and 21 .
So factorizing each number
34 = 2 x 17
51 = 3 x 17
So, the Greatest Common Factor is 17.
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The greatest common factor of 34 and 51 is 17. It is the largest number that divides both numbers without a remainder, and it is found by listing the factors of each number and identifying the greatest one that they have in common.
The greatest common factor (GCF) of two numbers is the largest number that divides both of them without leaving a remainder. To find the GCF of 34 and 51, we list the factors of each number:
Factors of 34: 1, 2, 17, 34
Factors of 51: 1, 3, 17, 51
As we can see, the common factors of 34 and 51 are 1 and 17.
Therefore, the greatest common factor of 34 and 51 is 17.
An interior designer is planning a room but needs to first figure out the dimensions. The length of the room is 21 inches on the architect’s plan. What is the actual length of the room in feet if the scale of the plan is 1.75 inches to 1 foot?
Answers
Answer:
12 inches i think
Step-by-step explanation:
because 21 ft = 252 ''
1.75* 12 = 21 ft
252/21 = 12ft
but im not 100% sure, I'll let yk once
I find out..
If The length of the room is 21 inches on the architect’s plan the actual length of the room is in feet if the scale of the plan is 1.75 inches to 1 foot is 36.75 feet.
What is the scale factor?It is defined as the multiplication factor used for the design of an object with respect to some other object . the scale is generally used to design prototype designs of large objects. It is also used in interior design planning rooms.
It is multiplied by the design dimension to get the actual size of the object or product.
For the given question an interior designer is planning a room but needs to first figure out the dimensions. The length of the room is 21 inches on the architect’s plan. the scale of the plan is 1.75 inches to 1 foot means the scale factor is 1.75
The actual length of the room = 1.75 ×21
= 36.75 feet
learn more about scale factors from here
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A helicopter is flying from Hong Kong to Jakarta. The latitude of Jakarta is -6.20°, and its longitude is 106.80°. The latitude of Hong Kong is 22.27°, and its longitude is 114.15°. What is the helicopter’s net change in latitude and longitude as it travels from Hong Kong to Jakarta?
Answers
-28.47 degrees of latitude, and -7.35 degrees of longitude
Answer:
28.47º of latitude, 7.35º of longitude
Step-by-step explanation:
The latitude and longitude are simple imaginary lines (horizontal for latitude and vertical for longitude) that divide the Earth from an angle point of view. When used as a combination of both, you can get an exact location in any part of the world. For the 2 references, there a 0º divisions that make one side positive angles and negative on the other side (in the case of latitude, positive angles are above the equator line and for longitude positive angles are from the right of the Greenwich Meridian).
With the above mentioned we can observe that Hong Kong and Jakarta are away 22.27º and 6.2º respectively from the equator. So, the total degrees in latitude wil simply be the sum of the 2 absolute values (222.7º+6.2º) giving as a result of 28.47º.
On the other hand, we have in longitude that both cities are several degrees away from the same reference, and because they are from the right side of the Greenwich Meridian, the net change will be the substraction of 114.5-106.8º, giving as a result a total of 7.35º.
Your friend has $80 when he goes to the fair. He spends $4 to enter the fair and $12 on food. Rides at the fair cost $1.25 per ride. Which function can be used to determine how much money he has left over after x rides?
A) f(x) = 1.25x + 64
B) f(x) = -16x + $80
C) f(x) = -1.25x + 64
D) f(x) = -1.25x - 64
Answers
x - number of rides
Let's go step by step:
He had 80$: f(x) = 80
He spends $4 to enter the fair: f(x) = 80 - 4
He spends $12 on food: f(x) = 80 - 4 - 12
Rides at the fair cost $1.25 per ride x: f(x) = 80 - 4 - 12 - 1.25x
f(x) = 80 - 4 - 12 - 1.25x
f(x) = 64 - 1.25x
f(x) = -1.25 + 64
P is 9 more than half of q
Answers
P=q/2+9
*NEED HELP??!!!
In one study it was found that the correlation coefficient between two variables is -0.93
Which statements is true?
There is a weak association between the variables
There is a weak association between the variables
There is a strong association between the variables
There is a strong association between the variables
Answers
Answer: There is a strong association between the variables
Step-by-step explanation:
The correlation is a term use inn statistics to define the relationship between any two or more than two variable.
When the value of correlation coefficient lies between -1 to -0.5 or 0.5 to 1, then it means that there is strong association between the variables.When the value of correlation coefficient lies between -0.5 to -0.3 or 0.3 to 0.5, then it means that there is moderate association between the variables.When the value of correlation coefficient lies between -0.3 to -0.1 or 0.1 to 3, then it means that there is weak association between the variables.Given : In one study it was found that the correlation coefficient between two variables is -0.93.
Since -1<-0.93< -0.5
It means, that There is a strong association between the variables
What is 5 medium apples divided by 475 calories?
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Which pair or pairs of polygons are congruent?
3 and 4
1 and 3
1, 3 and 4
2, 3 and 4
1, 2, 3 and 4
Answers
Answer: 1 and 3
Pair 1 is the mirror image of one another and it is shifted 1 unit up. so they are congruent
Pair 2 : the size of green image is increased when compared to the size of red image.
Pair 3: The red image is shifted up and right to get the green image. The size of the image are same. so they are congruent.
Pair 4: The size of the image differs.So they are not congruent.
James deposited $575 into a bank account that earned 5.5% simple interest each year. If no money was deposited into or withdrawn from the account, how much money was in the account after 2 years? Round your answer to the nearest cent. Enter your answer in the box.
Answers
Answer:
it's 654.06
Step-by-step explanation:
I just did the test
An earthquake measuring 6.4 on the Richter scale struck Japan in July 2007, causing extensive damage. Earlier that year, a minor earthquake measuring 3.1 on the Richter scale was felt in parts of Pennsylvania. How many times more intense was the Japanese earthquake than the Pennsylvania earthquake? (Round your answer to the nearest whole number.)
Answers
Final answer:
The 6.4 magnitude earthquake in Japan was approximately 1995 times more intense than the 3.1 magnitude earthquake in Pennsylvania, when calculated using the logarithmic Richter scale.
Explanation:
To determine how many times more intense the Japanese earthquake was than the Pennsylvania earthquake, we need to understand how the Richter scale measures the intensity of earthquakes. The Richter scale is logarithmic, and an increase of one unit corresponds to a tenfold increase in the amount of energy released by an earthquake. To calculate the intensity difference, we need to use the formula:
Intensity ratio = 10(magnitude of larger earthquake - magnitude of smaller earthquake)
For the earthquakes in question:
Magnitude of Japanese earthquake = 6.4
Magnitude of Pennsylvania earthquake = 3.1
Thus, the intensity ratio is:
Intensity ratio = 10(6.4 - 3.1)
Intensity ratio = 103.3
Calculating this with a calculator gives us an intensity ratio of approximately 1995.26. Rounded to the nearest whole number, the Japanese earthquake was about 1995 times more intense than the Pennsylvania earthquake.
Explain how to find an unknown value in a ratio by using a unit rate.
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We may write ratios as fractions to make it easier to determine the unknown term, and then utilize some fraction sense or cross-multiply to find the answer.
What is the ratio?Two quantities are compared in order to ascertain how frequently one yields the other. A fraction or a sign between two numbers can be used to denote the percentage.
We have to find an unknown value in a ratio by using a unit rate.
By lowering the fraction so that the first term serves as the denominator or the second term, you may express any rate as a unit rate.
To begin with, we must define a ratio, which is the comparison of two measures or values. Simply laying one number over the other, like in division, creates the basic form of a unit rate.
Think of a rate as a specific ratio with words that consists of two separate units or entities. It's like putting the simplest and most practical definition of what something is equivalent.
Thus, it is possible to find an unknown value in a ratio by using a unit rate.
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The equation of line WX is y = −2x − 5. Write an equation of a line perpendicular to line WX in slope-intercept form that contains point (−1, −2)
y = 1 over 2x + 3 over 2
y = negative 1 over 2x + 3 over 2
y = 1 over 2x − 3 over 2
y = − 1 over 2x − 3 over 2
Answers
y = 1 over 2x − 3 over 2,
for x=-1, y= 1/2(-1)-3/2= -1-3 /2=-4/2=-2.
What is the average rate of change of the function below on the interval from x = 0 to x = 2?
f(x)=250(0.5)x
Question 8 options:
A.-93.75
B.62.5
C.0
D.-0.25
Answers
[tex]\frac{f(2)-f(0)}{2-0} = \frac{250-0}{2-0}[/tex]
[tex]125[/tex]
Write all classifications that apply to the real number 2/3.
Answers
real
rational
complex
algebraic
Quadrilateral ABCD has vertices A(-3, 4), B(1, 3), C(3, 6), and D(1, 6). Match each set of vertices of quadrilateral EFGH with the transformation that shows it is congruent to ABCD.
Its drag to files
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A translation is a shift horizontally or vertically. For horizontal shifts, only x-coordinates will change, and for vertical shifts, y-coordinates change. This is because the x-axis runs horizontally left and right and the y-axis goes vertically up and down.
So a translation 7 units right would add 7 to each x-coordinate (right is positive).
Original coordinates: A(-3, 4), B(1,3), C(3,6), D(1,6)
New coordinates: A(-3+7, 4), B(1+7, 3), C(3+7, 6), D(1+7, 6)
= A(4, 4), B(8,3), C(10, 6), D(8,6)
Next statement is "a reflection across the y-axis. Reflecting across the y-axis changes the sign of x-coordinates.
Original coordinates: A(-3, 4), B(1,3), C(3,6), D(1,6)
New coordinates: A(3, 4), B(-1, 3), C(-3, 6), D(1, -6)
"A reflection across the x-axis" changes the sign of y-coordinates.
Original coordinates: A(-3, 4), B(1, 3), C(3, 6), D(1, 6)
New coordinates: A(-3, -4), B(1, -3), C(3, -6), D(1, -6)
"A translation 5 units down" subtracts 5 from each y-coordinate.
Original coordinates: A(-3, 4), B(1, 3), C(3, 6), D(1, 6)
New coordinates: A(-3, -1), B(1, -2), C(3, 1), D(1, 1)
Answer:
Step-by-step explanation:
If a polygon has six sides, then it is a hexagon. true or false.
Answers
An isosceles triangle has an area of 24 cm^2, and the angle between the two equal sides is 5π/6. What is the length of the two equal sides? (Round your answer to one decimal place.)
Answers
A = 1/2 x a x b x sinC
a = b in an isosceles triangle.
24 = 1/2 x a² x sin(5π/6)
a = 9.80 cm
Final answer:
To find the length of the two equal sides of an isosceles triangle with a given area and angle, we use a formula involving the sides and angle. By substituting the given values and applying trigonometry, we determine the length of the sides is approximately 9.8 cm.
Explanation:
To find the length of the two equal sides of an isosceles triangle with an area of 24 cm² and an angle between these sides of 5π/6, we can use the formula for the area of a triangle, which is A = ½ × base × height. However, in this scenario, it's more relevant to apply the formula involving the sides and the included angle, given by A = ½ × b × c × sin A, where b and c are the lengths of the two equal sides, and A is the included angle.
Substituting the given values, we get 24 = ½ × b² × sin(5π/6). Sin(5π/6) is ½, so we have 24 = ½ × b² × ½. Simplifying, b² = 96, and therefore b ≈ 9.8 cm. Thus, the length of the two equal sides is approximately 9.8 cm, rounded to one decimal place.
if y+7=21, what is the value of y?
Answers
Ok so if the problem is y+7=21, what the number that multiplies by 7 and you get 21. And your answer should be the answer after you figured out the problem.
Find a polynomial function f(n) such that f(1), f(2), ... , f(8) is the following sequence.2, 8, 14, 20, 26, 32, 38, 44
Answers
[tex]f(n) = a+(n-1)d[/tex]
where f(n) is the sequence
n is the term number
d is the common difference
and a is the starting term
We are well aware that our starting term, and hence a, is 2 and our difference, and hence d, is 6.
So our polynomial function is
[tex]f(n) = 2+6(n-1)[/tex]
Last year, Jess saw x dramas and y comedies at the movie theater. If she went to the theater no more than 8 times, which inequality best represents the number of movies she saw?
x + y < 8
x + y > 8
x + y ≤ 8
x + y ≥ 8
Answers
Jess saw x dramas and y comedies at the movie theater: x + y
She went to the theater no more than 8 times, so, these could be numbers 1, 2, 3, 4, 5, 6, 7, and 8 and no more than that: ≤ 8
Hence: x + y ≤ 8
Answer:
The correct answer for E2020 is C: x + y ≤ 8
Hope this helps you
(p.s:Please mark me as brainlyest)
Step-by-step explanation:
I just took the test on edu and got 100%
What is the domain of the function f(x) = 21 - x?
Answers
I'm sorry, I couldn't find the infinite symbols.
Which of the following statements is false?
A)The product of two rational numbers is always irrational.
B)The sum of a rational number and an irrational number is always irrational.
C)The product of a nonzero rational number and an irrational number is always irrational.
D)The product of two irrational numbers is either rational or irrational.
Answers
Product of 2 rational number is always rational. Rational number is number which can be represented as ratio which both numerator and denominator are finite whole numbers. If you multiply 2 finite numbers you wiill get 2 finite numbers.
B is true because infinite + finite is infinite (talking about numerators)
C simillar case as B. infinite * finite is infinite
D is true as well. for example √2*√2 is rational number. it is number 2. while √2*√3 is irational.
Answer:
A.
Step-by-step explanation:
So if you do √25*√49 is 13.2287565553
which is irrational but if you do 53 times 53 you get 2809 which is rational so you its Not always irrational
What is the probability of rolling double six
Answers
a 6 on a die is only on one face, so that would be 1/6 of the whole die
to roll a double would mean take 1/6 x 1/6
$$(1/6)*(1/6) = 1/36$$.
1 in 36.
By this logic, our new player just did something pretty unlikely on her first roll. this is the answer i think